CN104232238B - A kind of catalytic coal gasification material and its preparation method and application - Google Patents
A kind of catalytic coal gasification material and its preparation method and application Download PDFInfo
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Abstract
The invention provides a kind of catalytic coal gasification material and preparation method thereof, this catalytic coal gasification material includes coal dust and the catalytic coal gasifaction catalyst being supported on described coal dust, wherein, described coal dust includes many parts that particle diameter increases successively, and relative to the coal dust of same mass unit, the amount of the catalytic coal gasifaction catalyst of load on the coal dust that on the coal dust that adjacent rear portion particle diameter is big, the amount of the catalytic coal gasifaction catalyst of load is little no less than adjacent front portion particle diameter.The invention provides the application in catalytic coal gasifaction of the catalytic coal gasification material of the present invention.Use the catalytic coal gasification material of the present invention, it is possible to be effectively improved the gasification reactivity of rough coal powder, and the loss taking the catalytic coal gasifaction catalyst caused out of due to fine breeze can be reduced, be thus integrally improved the efficiency of Coal Gasification.
Description
Technical field
The present invention relates to a kind of catalytic coal gasification material and preparation method thereof, and the coal catalysis of the present invention
The application in catalytic coal gasifaction of the gasification reaction material.
Background technology
The coal resource of China enriches, and is distributed the most quite varied.Low-order coal especially bituminous coal and the ratio of brown coal
The highest, have the advantages that fugitive constituent is high and reactivity is high, be adapted as Coal Chemical Industry raw material.
It is reported, in the bituminous coal reserves of China, more than 40% has the advantages that ash content is high and ash fusion point is high,
Being called for short " double high coal ", the ash fusion point of these coals is typically more than 1400 DEG C, and some is even above 1580 DEG C,
And the ash content of raw coal is up to more than 30-40 weight %, even if after washing, ash content is also up to 15 weight
About %, brings some technical barriers therefore to the application of these coal gasifications.
Root according to the literature, the bed pulverized coal gasification technology of existing advanced person and coal water slurry gasification technology, be required to
Ash fusion point is below 1400 DEG C, and along with ash content improves, system economy is greatly lowered, so
General operational requirement ash content is below 10-15 weight %.The fixed bed gasification technology adaptability to coal
By force, but technically the lumpiness of coal is required height.Fluidized gasification technology is to fine coal, dirty coal and height
The technological adaptability of ash fusion point coal is good, and operation economy is preferable.
The broken coal impregnated catalyst that certain particle size is typically formed by catalytic coal gasifaction technology, drying is the most program control
Make certain water content, deliver in reactor by material-transporting system, more much lower than conventional temperature
Realizing coal gasification, methanation and heat coupling under process conditions, not only richness produces a large amount of methane gas, and
System energy efficiency and cold gas efficiency the most relatively traditional coal gasifying process is high.Dress is produced particularly with natural gas from coal
Put, plant investment and the running cost of superfluous synthesis gas methanation reaction also can be greatly reduced.
Although catalytic coal gasifaction technology has above-mentioned technical advantage, but, existing catalytic gasification technology pair
Coal dust has certain upper limit requirement, the particle size range of general coal dust typically below 10mm or 5mm with
Under, i.e. coal particle size scope is between 0-10mm or 0-5mm, and in catalyst dipping process,
Due under identical immersion condition, the catalyst loadings of fine powdered coal is high, and the urging of coarse granule coal dust
Agent load capacity is low, so that catalytic amount low the causing owing to loading on rough coal powder reduces coarse granule
The gasification reactivity of coal dust, and owing to fine breeze is easily taken out of during catalytic coal gasifaction so that duff
On powder, the catalyst of load is carried over, and thereby increases the stream taking the catalyst caused out of due to fine breeze
Lose.
Summary of the invention
Present invention aims to the above-mentioned technological deficiency of prior art, it is provided that one can effectively carry
The gasification reactivity of high rough coal powder and the loss taking the catalyst caused out of due to fine breeze can be reduced
Catalytic coal gasification material and its preparation method and application.
The present inventor finds in research process, the existing catalytic gasification technology particle diameter to coal dust
There is certain upper limit requirement, but do not account in catalyst dipping process, due at identical dipping bar
Under part, the catalyst loadings of fine powdered coal is high, and the catalyst loadings of coarse granule coal dust is low, by
This reduces the gasification reactivity of coarse granule coal dust, and due to fine breeze during catalytic coal gasifaction easily
Take out of, and owing to taking out of of fine breeze will cause a large amount of losses of catalytic coal gasifaction catalyst.
Based on drawbacks described above, the present inventor proposes, and impregnates according to the grain size grading of coal dust,
The on-demand load of catalytic amount needed for the catalytic amount that can load according to different-grain diameter and gasification, example
As pulverized coal sieve can be divided into rough coal powder and the many parts of fine breeze, impregnate the most respectively, control the bar of dipping
(rough coal powder such as can be taked to use high concentration catalyst solution impregnation, and fine breeze uses dilute concentration to urge to part
The means such as agent solution impregnation realize) catalyst loadings that makes fine powdered coal is relatively low, and thick
The catalyst loadings of particle coal dust is of a relatively high, by so by favourable for coal dust gradation footpath supported catalyst
In the pay(useful) load amount and the gasification reactivity of rough coal powder that improve catalytic coal gasifaction catalyst such that it is able to overall
Improve the efficiency of Coal Gasification.
For realizing object defined above, according to the first aspect of the invention, the invention provides a kind of coal catalysis gas
Changing reaction material, this catalytic coal gasification material includes coal dust and the catalytic coal gasifaction being supported on described coal dust
Catalyst, wherein, described coal dust includes many parts that particle diameter increases successively, and relative to same quality list
The coal dust of position, on the coal dust that adjacent rear portion particle diameter is big, the amount of the catalytic coal gasifaction catalyst of load is not
The amount of the catalytic coal gasifaction catalyst of load on the coal dust little less than adjacent front portion particle diameter.
According to the second aspect of the invention, the invention provides the preparation side of a kind of catalytic coal gasification material
Method, wherein, the method includes: the many parts coal dust increased successively by particle diameter is each catalyzed gas with containing coal
Change the solution impregnation contact of catalyst, and the condition of immersive contact makes, relative to same mass unit
Coal dust, on the coal dust that adjacent rear portion particle diameter is big, the amount of the catalytic coal gasifaction catalyst of load is no less than
The amount of the catalytic coal gasifaction catalyst of load on the coal dust that adjacent front portion particle diameter is little.
According to the third aspect of the invention we, the invention provides and a kind of prepare according to the preparation method of the present invention
The catalytic coal gasification material obtained.
According to the fourth aspect of the invention, the invention provides the catalytic coal gasification material of the present invention at coal
Application in catalytic gasification.
Use the catalytic coal gasification material of the present invention, it is possible to be effectively improved the gasification reactivity of rough coal powder, and
And the loss taking the catalytic coal gasifaction catalyst caused out of due to fine breeze can be reduced, thus entirety carries
The high efficiency of Coal Gasification.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
The invention provides a kind of catalytic coal gasification material, this catalytic coal gasification material include coal dust and
The catalytic coal gasifaction catalyst being supported on described coal dust, wherein, described coal dust includes that particle diameter increases successively
Many parts, and relative to the coal dust of same mass unit, on the coal dust that adjacent rear portion particle diameter is big
Load on the coal dust that the amount of the catalytic coal gasifaction catalyst of load is little no less than adjacent front portion particle diameter
The amount of catalytic coal gasifaction catalyst.
In the present invention, many parts that particle diameter increases successively refer to the average of adjacent rear portion coal dust
Particle diameter is bigger than the average grain diameter of a collection of coal dust before adjacent, and the particle diameter limit of adjacent rear portion coal dust
Higher than the particle diameter upper limit of a collection of coal dust before adjacent.
Catalytic coal gasification material according to the present invention, can be fine according to the preceding solution of the present invention
Realize the purpose of the present invention, for the present invention, in order to improve the whole efficiency of catalytic coal gasifaction further,
The average grain diameter of the most adjacent rear portion coal dust is bigger than the average grain diameter of adjacent front portion coal dust
0.1mm-6mm, the average grain diameter of the most adjacent rear portion coal dust is than adjacent front portion coal dust
The big 0.5mm-4mm of average grain diameter.
Catalytic coal gasification material according to the present invention, can be fine according to the preceding solution of the present invention
Realize the purpose of the present invention, for the present invention, in order to improve the whole efficiency of catalytic coal gasifaction further,
Preferably with respect to the coal dust of same mass unit, the coal of load on the coal dust that adjacent rear portion particle diameter is big
The catalytic coal gasifaction of load on the coal dust that the amount of catalytic gasification catalyst is less than adjacent front portion particle diameter
Amount many 0.4-20 quality % of catalyst, more preferably many 1-10 quality %.
Catalytic coal gasification material according to the present invention, the particle diameter upper limit of described coal dust can be conventional choosing
Selecting, it is the conventional selection of this area, and the particle diameter upper limit is generally 10mm or 5mm.
In the present invention, particle size range obtains for carrying out screening by standard GB/T/T6003.1-1997.
One according to the present invention is preferred embodiment, it is preferable that when the particle diameter upper limit of described coal dust is
During 10mm, described coal dust includes five parts that particle diameter increases successively, and wherein, the particle diameter of this five part is each
From for less than 2mm, more than or equal to 2mm to less than 4mm, more than or equal to 4mm to less than 6mm,
More than or equal to 6mm to less than 8mm, more than or equal to 8mm to less than or equal to 10mm.
One according to the present invention is preferred embodiment, it is preferable that when the particle diameter upper limit of described coal dust is
During 10mm, described coal dust includes four parts that particle diameter increases successively, and wherein, this tetrameric particle diameter is each
From for less than 2mm, more than or equal to 2mm to less than 5mm, more than or equal to 5mm to less than 8mm,
More than or equal to 8mm to less than or equal to 10mm.
One according to the present invention is preferred embodiment, it is preferable that when the particle diameter upper limit of described coal dust is
During 10mm, described coal dust includes three parts that particle diameter increases successively, and wherein, the particle diameter of this three part is each
From for less than 3mm, more than or equal to 3mm to less than 6mm, more than or equal to 6mm to being less than or equal to
10mm。
One according to the present invention is preferred embodiment, it is preferable that when the particle diameter upper limit of described coal dust is
During 5mm, described coal dust includes three parts that particle diameter increases successively, and wherein, the particle diameter of this three part is each
From for less than 1mm, more than or equal to 1mm to less than 3mm, more than or equal to 3mm to less than or equal to 5mm.
One according to the present invention is preferred embodiment, it is preferable that when the particle diameter upper limit of described coal dust is
During 5mm, described coal dust includes two parts that particle diameter increases successively, and wherein, the particle diameter of this two part is each
From for less than 2.5mm, more than or equal to 2.5mm to less than or equal to 5mm.
Catalytic coal gasification material according to the present invention, the kind of described catalytic coal gasifaction catalyst can be
Conventional selection, for the present invention, the most described catalytic coal gasifaction catalyst is alkali metal compound, preferably
For one or more in alkali metal salt, alkali-metal oxide and alkali metal hydroxide, it is more preferably
In the oxide of sylvite, sodium salt, the hydroxide of potassium, the hydroxide of sodium, the oxide of potassium and sodium
One or more, particularly preferably potassium carbonate, potassium hydroxide, potassium oxide, sodium carbonate, NaOH and
One or more in sodium oxide molybdena.The catalytic coal gasifaction catalyst used in the specific embodiment of the invention is carbon
Acid potassium.
Catalytic coal gasification material according to the present invention, the kind of described coal dust can be conventional selection, pin
To the present invention, the most described coal dust is one or more in brown coal powder, bituminous coal powder and anchracite duff, i.e.
The coal dust of the plurality of part each is selected from as the one in brown coal powder, bituminous coal powder and anchracite duff or many
Kind, it identical can also differ, use identical coal dust during general operation.
The preparation method of heretofore described catalytic coal gasification material is unrestricted, such as, can use this
Invent preparation method as described below to prepare.
The invention provides the preparation method of a kind of catalytic coal gasification material, wherein, the method includes:
The many parts coal dust increased successively by particle diameter each connects with the solution impregnation containing catalytic coal gasifaction catalyst
Touch, and the condition of immersive contact makes, relative to the coal dust of same mass unit, adjacent rear portion
On the coal dust that particle diameter is big, the amount of the catalytic coal gasifaction catalyst of dipping is no less than adjacent front portion particle diameter
The amount of the catalytic coal gasifaction catalyst of dipping on little coal dust.
In the present invention, many parts that particle diameter increases successively refer to the average of adjacent rear portion coal dust
Particle diameter is bigger than the average grain diameter of a collection of coal dust before adjacent, and the particle diameter limit of adjacent rear portion coal dust
Higher than the particle diameter upper limit of a collection of coal dust before adjacent.
Preparation in accordance with the present invention, in order to improve the whole efficiency of catalytic coal gasifaction further, preferably
The average grain diameter of adjacent rear portion coal dust is bigger than the average grain diameter of adjacent front portion coal dust
0.1mm-6mm, the biggest 0.5mm-4mm.
Preparation in accordance with the present invention, in order to improve the whole efficiency of catalytic coal gasifaction further, preferably
The condition of immersive contact makes, and relative to the coal dust of same mass unit, adjacent rear portion particle diameter is big
Coal dust on the amount of catalytic coal gasifaction catalyst of the dipping coal dust less than adjacent front portion particle diameter
Amount many 0.4-20 quality % of the catalytic coal gasifaction catalyst of dipping, more preferably many 1-10 quality %.
In the present invention, the amount of the catalytic coal gasifaction catalyst of dipping refers to the amount of catalytic coal gasifaction catalyst
With the mass ratio of coal dust, it is suitable with the amount of the catalyst of final load.
Preparation in accordance with the present invention, the particle diameter upper limit of described many parts coal dust can be conventional selection,
It is the conventional selection of this area, and the particle diameter upper limit is generally 10mm or 5mm.
In the present invention, particle size range obtains for carrying out screening by standard GB/T/T6003.1-1997.
One according to the present invention is preferred embodiment, it is preferable that when on the particle diameter of described many parts coal dust
When being limited to 10mm, described coal dust includes five parts that particle diameter increases successively, wherein, the grain of this five part
Footpath is respectively less than 2mm, more than or equal to 2mm to less than 4mm, more than or equal to 4mm extremely less than 6mm,
More than or equal to 6mm to less than 8mm, more than or equal to 8mm to less than or equal to 10mm.
One according to the present invention is preferred embodiment, it is preferable that when on the particle diameter of described many parts coal dust
When being limited to 10mm, described coal dust includes four parts that particle diameter increases successively, wherein, this tetrameric grain
Footpath is respectively less than 2mm, more than or equal to 2mm to less than 5mm, more than or equal to 5mm extremely less than 8mm,
More than or equal to 8mm to less than or equal to 10mm.
One according to the present invention is preferred embodiment, it is preferable that when on the particle diameter of described many parts coal dust
When being limited to 10mm, described coal dust includes three parts that particle diameter increases successively, wherein, the grain of this three part
Footpath is respectively less than 3mm, more than or equal to 3mm to less than 6mm, more than or equal to 6mm to being less than
In 10mm.
One according to the present invention is preferred embodiment, it is preferable that when on the particle diameter of described many parts coal dust
When being limited to 5mm, described coal dust includes three parts that particle diameter increases successively, wherein, the grain of this three part
Footpath is respectively less than 1mm, more than or equal to 1mm to less than 3mm, more than or equal to 3mm to being less than
In 5mm.
One according to the present invention is preferred embodiment, it is preferable that when on the particle diameter of described many parts coal dust
When being limited to 5mm, described coal dust includes two parts that particle diameter increases successively, wherein, the grain of this two part
Footpath is respectively less than 2.5mm, more than or equal to 2.5mm to less than or equal to 5mm.
Preparation in accordance with the present invention, the kind of described catalytic coal gasifaction catalyst can be conventional choosing
Selecting, for the present invention, the most described catalytic coal gasifaction catalyst is alkali metal compound, preferably alkali gold
Belong to one or more in salt, alkali-metal oxide and alkali metal hydroxide, more preferably sylvite,
One in the oxide of sodium salt, the hydroxide of potassium, the hydroxide of sodium, the oxide of potassium and sodium or
Multiple, particularly preferably potassium carbonate, potassium hydroxide, potassium oxide, sodium carbonate, NaOH and sodium oxide molybdena
In one or more.The catalytic coal gasifaction catalyst used in the specific embodiment of the invention is potassium carbonate.
Preparation in accordance with the present invention, the kind of the described solution containing catalytic coal gasifaction catalyst is normal
Rule select, and the solvent of general solution is essentially water, it is possible to according to needing to add other cosolvents, to this
Skilled person all can know, does not repeats them here.
Preparation in accordance with the present invention, the kind of described many parts coal dust can be conventional selection, for
The present invention, the most described many parts coal dust is one or more in brown coal powder, bituminous coal powder and anchracite duff,
The coal dust of the most the plurality of part each is selected from as the one in brown coal powder, bituminous coal powder and anchracite duff or many
Kind, it can identical can also differ.Preparation in accordance with the present invention, when described many parts coal dust
During for identical type, described many parts coal dust can obtain by coal dust is carried out screening.For the ease of reality
Executing, the kind of the many parts coal dust in embodiments of the invention is identical.
The method according to the invention, can be respectively equal-volume leaching with the method for many parts coal dust immersive contact
Stain method, excess infusion process or multiple maceration, as long as disclosure satisfy that the requirement of the present invention after Jin Zi,
It is not described here in detail.
As long as the condition of heretofore described immersive contact meets the requirement being finally reached the present invention, example
Such as the coal dust for same mass unit, molten containing catalytic coal gasifaction catalyst of high concentration can be used
The coal dust that immersion stain particle diameter is big, and use the solution impregnation grain containing catalytic coal gasifaction catalyst of low concentration
The coal dust that footpath is little；Can be so that the urging containing coal of the coal dust immersive contact big with adjacent rear portion particle diameter
Change the concentration of solution of gasifying catalyst higher than the coal dust immersive contact little with adjacent front portion particle diameter
The concentration of the solution containing catalytic coal gasifaction catalyst, wherein, preferably for the coal of same mass unit
Powder, the coal dust immersive contact that described with adjacent rear portion particle diameter is big containing catalytic coal gasifaction catalyst
Concentration being catalyzed containing coal higher than the coal dust immersive contact little with adjacent front portion particle diameter of solution
Concentration 0.4-30 mass % of the solution of gasifying catalyst, the highest 1-15 mass %.Highly concentrated except using
The coal dust that the degree adjacent rear portion particle diameter of dipping is big, use low concentration containing catalytic coal gasifaction catalyst
The little coal dust of the adjacent front portion particle diameter of solution impregnation embodiment outside, it would however also be possible to employ identical dense
The dipping of degree different volumes is so that the coal catalysis gas of dipping on the big coal dust of adjacent rear portion particle diameter
Change the catalytic coal gasifaction catalyst of dipping on the amount coal dust less than adjacent front portion particle diameter of catalyst
Amount many, such as many 0.4-20 quality %, more preferably many 1-10 quality %.Except enforcement described above
Mode, remaining disclosure satisfy that the embodiment of application claims is used equally to the present invention.
The method of preparation in accordance with the present invention, the preferably present invention also includes: obtain after immersive contact
The mixing of many part mixes or be dried after not mixing, when meeting aforementioned impregnation requirement, equally can
Make the catalytic coal gasifaction catalyst of load on the coal dust that dried adjacent rear portion particle diameter is big
The amount of the catalytic coal gasifaction catalyst of load on the coal dust that amount is little no less than adjacent front portion particle diameter；More
Preferably dried, relative to the coal dust of same mass unit, on the coal dust that adjacent rear portion particle diameter is big
The coal of load on the coal dust that the amount of catalytic coal gasifaction catalyst of load is less than adjacent front portion particle diameter
Amount many 0.4-20 quality % of catalytic gasification catalyst, more preferably many 1-10 quality %.
Preparation in accordance with the present invention, if not mixing the many part mixes obtained after immersive contact
Direct each self-desiccation, then will use after partly mixing during subsequent applications.
The invention provides the catalytic coal gasification material prepared according to the preparation method of the present invention.
The invention provides the application in catalytic coal gasifaction of the catalytic coal gasification material of the present invention.
It is above the concrete detailed description of each aspect of the present invention, below with reference to illustrative and not restrictive
The present invention is illustrated by embodiment.Only using former as coal dust as a example by not connecting ditch coal in embodiment
Material, it should be appreciated that, remaining coal dust is used equally to the present invention.
In the present invention, on coal dust, the amount (abbreviation load capacity) of the catalytic coal gasifaction catalyst of load refers to
The amount of the catalytic coal gasifaction catalyst contained on coal dust, it is the quality of catalytic coal gasifaction catalyst on coal dust
Percentage (quality/quality of pc × 100% of catalytic coal gasifaction catalyst) with the quality of coal dust.
In the embodiment of the present invention and comparative example, on coal dust, the amount of catalyst potassium carbonate measures as follows
Arrive:
Acid extracting is used to measure the amount of catalytic coal gasifaction catalyst potassium carbonate in catalytic coal gasification material, tool
Gymnastics is made as follows: the catalytic coal gasification material sample accurately weighing about 0.2g is placed in polytetrafluoroethylene (PTFE) earthenware
In crucible；Add 2ml perchloric acid, 10ml hydrofluoric acid after soaking by 2ml deionized water, be placed in electric hot plate
On slowly heat, steam and substantially emit to the greatest extent to white cigarette, take off crucible, the coldest, be placed on after adding hydrochloric acid 10ml
Earthenware misfortune is taken off after being heated on electric hot plate closely boiling and keep 2min；It is cooled in crucible after room temperature with hot water
Sample solution be transferred in 250ml volumetric flask by the funnel being lined with filter paper at a slow speed, anti-by deionized water
After multiple cleaning crucible and filter paper, it is diluted with water to scale；Then with potassium in flame spectrophotometer measuring solution from
Sub-concentration, is calculated potassium carbonate content.
In the present invention, average grain diameter prepares as follows: coal dust first passes through shaking screen (country
Standard GB/T6003.1-1997) sieve, it is arranged above and below from coarse to fine for sieve by screen size order,
A certain amount of coal dust sample is placed in the superiors, vibrates certain time, weigh the powder weight on each screen size
Amount, tries to achieve the different pore size percetage by weight on each screen size, is derived from the screening grain on the basis of weight
The specific surface area methods such as footpath is distributed, average grain diameter employing calculate gained, and computing formula is:
Wherein D is average grain diameter, WiThe percent mass of gross sample is accounted for for coal dust sample between each adjacent two screen sizes
Content, XiFor the diameter mean value that each adjacent two screen sizes are corresponding.
Comparative example 1
Selection does not connect ditch bituminous coal (phosphorus content is about 60 mass %) and is crushed to particle diameter as coal, process
At below 5mm, (particle diameter is distributed as the coal dust of 2.5-5mm scope and accounts for 30 mass %, less than 2.5mm scope
Coal dust account for 70 mass %)；
10g potassium carbonate is dissolved in 50ml deionized water, upper by the solution of potassium carbonate that obtains and 100g
That states particle diameter does not connects ditch bituminous coal immersive contact, stands the mixture after being contacted for 1 hour after stirring；
Putting in baking oven by the mixture after contact, the coal obtaining loading potassium carbonate catalyst in 105 DEG C of drying is urged
Changing gasification reaction material, load capacity is shown in Table 1.
Taking this catalytic coal gasification material 10g, be 3.5MPa at pressure, temperature is 700 DEG C, initially enters
Entering ratio of water to coal is the ratio that 0.68ml/h/g(ratio of water to coal is water flow velocity and carbon content in coal quality), nitrogen with
The flow velocity of 60ml/min reacts 3 hours as under conditions of blowing gas, and middle per half an hour takes airbag to receive
Collection gas, and carry out component analysis by gas-chromatography, reaction result is shown in Table 1.
Separately this catalytic coal gasification material is carried out particle diameter screening, screen out 2.5-5mm scope (bag respectively
Include end value 2.5mm and 5mm) catalytic coal gasification material (average grain diameter 3.4mm) and less than 2.5mm
Catalytic coal gasification material (average grain diameter 0.8mm), use aforementioned acid extracting to measure 2.5-5mm respectively
The catalytic coal gasification material of scope and less than potassium content in the catalytic coal gasification material of 2.5mm,
In the catalytic coal gasification material of 2.5-5mm, potassium carbonate load capacity is 6.3 mass %, less than 2.5mm
Catalytic coal gasification material in potassium carbonate load capacity be 12.1 mass %.
Taking the catalytic coal gasification material 10g of 2.5-5mm, be 3.5MPa at pressure, temperature is 700 DEG C,
Initially entering ratio of water to coal is the mass ratio that 0.68ml/h/g(ratio of water to coal is water flow velocity and the carbon in coal dust
Rate), nitrogen reacts 3 hours under conditions of blowing gas using the flow velocity of 60ml/min, and middle every half
Hour taking airbag to collect gas, and carry out component analysis by gas-chromatography, reaction result is shown in Table 1.
Taking the catalytic coal gasification material 10g less than 2.5mm, be 3.5MPa at pressure, temperature is
700 DEG C, initially entering ratio of water to coal is the matter that 0.68ml/h/g(ratio of water to coal is water flow velocity and the carbon in coal dust
Amount ratio), nitrogen reacts 3 hours under conditions of blowing gas using the flow velocity of 60ml/min, middle
Per half an hour takes airbag to collect gas, and carries out component analysis by gas-chromatography, and reaction result is shown in Table 1.
Embodiment 1
Selection does not connect ditch bituminous coal (phosphorus content is about 60 mass %) and is crushed to particle diameter as coal, process
At below 5mm, (the particle diameter upper limit is 5mm to scope, and wherein, particle diameter is distributed as 2.5-5mm scope (bag
Include end value 2.5mm and 5mm) coal dust account for 30 mass %, the coal dust less than 2.5mm accounts for 70 mass
%)；It is classified as the particle size range Part I (average grain diameter 0.8mm) less than 2.5mm, and grain
Footpath scope is the Part II (average grain diameter 3.4mm) of 2.5-5mm；Soak the most as follows
Stain contacts:
3g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 30g's
The Part II coal dust immersive contact of 2.5-5mm, stands mixing after being contacted for 1 hour after stirring
Compound；
6.3g potassium carbonate is dissolved in 50ml deionized water, little by the solution of potassium carbonate that obtains and 70g
In the Part I coal dust immersive contact of 2.5mm, stand after stirring after within 1 hour, being contacted
Mixture；
By the mixture after the contact of above-mentioned two parts each in 105 DEG C of drying (respective load capacity is shown in Table 1),
The most each it is divided into first part and second part.
From the catalytic coal gasification material of the 2.5-5mm of first part, take 10g, be 3.5MPa at pressure,
Temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is in water flow velocity and coal dust
The quality ratio of carbon), nitrogen is little using the flow velocity of 60ml/min as reacting 3 under conditions of blowing gas
Time, take airbag to collect gas, and carry out component analysis, reaction result by gas-chromatography middle per half an hour
It is shown in Table 1.
From the catalytic coal gasification material less than 2.5mm of first part, take 10g, at pressure be
3.5MPa, temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is water flow velocity
Quality ratio with the carbon in coal dust), nitrogen is using the flow velocity of 60ml/min as anti-under conditions of blowing gas
Answering 3 hours, middle per half an hour takes airbag to collect gas, and carries out component analysis by gas-chromatography,
Reaction result is shown in Table 1.
By catalytic coal gasification material and the coal less than 2.5mm of second part of the 2.5-5mm of second part
Catalytic gasification reaction material mechanical mixture is uniform, takes 10g(load capacity therein and is shown in Table 1), at pressure be
3.5MPa, temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is water flow velocity
Ratio with carbon content in coal quality), nitrogen reacts 3 using the flow velocity of 60ml/min under conditions of blowing gas
Individual hour, middle per half an hour took airbag to collect gas, and carries out component analysis by gas-chromatography, reaction
The results are shown in Table 1.
Embodiment 2
Selection does not connect ditch bituminous coal (phosphorus content is about 60 mass %) and is crushed to particle diameter as coal, process
At below 5mm, (the particle diameter upper limit is 5mm to scope, and wherein, particle diameter is distributed as the coal of 2.5-5mm scope
Powder accounts for 30 mass %, and the coal dust less than 2.5mm accounts for 70 mass %)；It is classified as particle size range to be less than
The Part I (average grain diameter 0.8mm) of 2.5mm, and particle size range be 2.5-5mm(include end
Value 2.5mm and 5mm) Part II (average grain diameter 3.4mm)；Soak the most as follows
Stain contacts:
3g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 30g's
The Part II coal dust immersive contact of 2.5-5mm, stands mixing after being contacted for 1 hour after stirring
Compound；
3.75g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 70g's
Part I coal dust immersive contact less than 2.5mm, stands after stirring after within 1 hour, being contacted
Mixture；
By the mixture after the contact of above-mentioned two parts each in 105 DEG C of drying (respective load capacity is shown in Table 1),
The most each it is divided into first part and second part.
From the catalytic coal gasification material of the 2.5-5mm of first part, take 10g, be 3.5MPa at pressure,
Temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is in water flow velocity and coal dust
The quality ratio of carbon), nitrogen is little using the flow velocity of 60ml/min as reacting 3 under conditions of blowing gas
Time, take airbag to collect gas, and carry out component analysis, reaction result by gas-chromatography middle per half an hour
It is shown in Table 1.
From the catalytic coal gasification material less than 2.5mm of first part, take 10g, at pressure be
3.5MPa, temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is water flow velocity
Quality ratio with the carbon in coal dust), nitrogen is using the flow velocity of 60ml/min as anti-under conditions of blowing gas
Answering 3 hours, middle per half an hour takes airbag to collect gas, and carries out component analysis by gas-chromatography,
Reaction result is shown in Table 1.
By catalytic coal gasification material and the coal less than 2.5mm of second part of the 2.5-5mm of second part
Catalytic gasification reaction material mechanical mixture is uniform, takes 10g(load capacity therein and is shown in Table 1), at pressure be
3.5MPa, temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is water flow velocity
Ratio with carbon content in coal quality), nitrogen reacts 3 using the flow velocity of 60ml/min under conditions of blowing gas
Individual hour, middle per half an hour took airbag to collect gas, and carries out component analysis by gas-chromatography, reaction
The results are shown in Table 1.
Embodiment 3
Selection does not connect ditch bituminous coal (phosphorus content is about 60 mass %) and is crushed to particle diameter as coal, process
At below 5mm, (the particle diameter upper limit is 5mm to scope, and wherein, particle diameter is distributed as the coal of 2.5-5mm scope
Powder accounts for 30 mass %, and the coal dust less than 2.5mm accounts for 70 mass %)；It is classified as particle size range to be less than
The Part I (average grain diameter 0.8mm) of 2.5mm, and particle size range be 2.5-5mm(include end
Value 2.5mm and 5mm) Part II (average grain diameter 3.4mm)；Soak the most as follows
Stain contacts:
4.5g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 30g's
The Part II coal dust immersive contact of 2.5-5mm, stands mixing after being contacted for 1 hour after stirring
Compound；
3.5g potassium carbonate is dissolved in 50ml deionized water, little by the solution of potassium carbonate that obtains and 70g
In the Part I coal dust immersive contact of 2.5mm, stand after stirring after within 1 hour, being contacted
Mixture；
By the mixture after the contact of above-mentioned two parts each in 105 DEG C of drying (respective load capacity is shown in Table 1),
The most each it is divided into first part and second part.
From the catalytic coal gasification material of the 2.5-5mm of first part, take 10g, be 3.5MPa at pressure,
Temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is in water flow velocity and coal dust
The quality ratio of carbon), nitrogen is little using the flow velocity of 60ml/min as reacting 3 under conditions of blowing gas
Time, take airbag to collect gas, and carry out component analysis, reaction result by gas-chromatography middle per half an hour
It is shown in Table 1.
From the catalytic coal gasification material less than 2.5mm of first part, take 10g, at pressure be
3.5MPa, temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is water flow velocity
Quality ratio with the carbon in coal dust), nitrogen is using the flow velocity of 60ml/min as anti-under conditions of blowing gas
Answering 3 hours, middle per half an hour takes airbag to collect gas, and carries out component analysis by gas-chromatography,
Reaction result is shown in Table 1.
By catalytic coal gasification material and the coal less than 2.5mm of second part of the 2.5-5mm of second part
Catalytic gasification reaction material mechanical mixture is uniform, takes wherein 10g(load capacity and is shown in Table 1), at pressure be
3.5MPa, temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is water flow velocity
Ratio with carbon content in coal quality), nitrogen reacts 3 using the flow velocity of 60ml/min under conditions of blowing gas
Individual hour, middle per half an hour took airbag to collect gas, and carries out component analysis by gas-chromatography, reaction
The results are shown in Table 1.
Embodiment 4
Selection does not connect ditch bituminous coal (phosphorus content is about 60 mass %) and is crushed to particle diameter as coal, process
At below 5mm, (the particle diameter upper limit is 5mm to scope, and wherein, particle diameter is distributed as the coal of 2.5-5mm scope
Powder accounts for 30 mass %, and the coal dust less than 2.5mm accounts for 70 mass %)；It is classified as particle size range to be less than
The Part I (average grain diameter 0.8mm) of 2.5mm, and particle size range be 2.5-5mm(include end
Value 2.5mm and 5mm) Part II (average grain diameter 3.4mm)；Soak the most as follows
Stain contacts:
6g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 30g's
The Part II coal dust immersive contact of 2.5-5mm, stands mixing after being contacted for 1 hour after stirring
Compound；
3.5g potassium carbonate is dissolved in 50ml deionized water, little by the solution of potassium carbonate that obtains and 70g
In the Part I coal dust immersive contact of 2.5mm, stand after stirring after within 1 hour, being contacted
Mixture；
By the mixture after the contact of above-mentioned two parts each in 105 DEG C of drying (respective load capacity is shown in Table 1),
The most each it is divided into first part and second part.
From the catalytic coal gasification material of the 2.5-5mm of first part, take 10g, be 3.5MPa at pressure,
Temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is in water flow velocity and coal dust
The quality ratio of carbon), nitrogen is little using the flow velocity of 60ml/min as reacting 3 under conditions of blowing gas
Time, take airbag to collect gas, and carry out component analysis, reaction result by gas-chromatography middle per half an hour
It is shown in Table 1.
From the catalytic coal gasification material less than 2.5mm of first part, take 10g, at pressure be
3.5MPa, temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is water flow velocity
Quality ratio with the carbon in coal dust), nitrogen is using the flow velocity of 60ml/min as anti-under conditions of blowing gas
Answering 3 hours, middle per half an hour takes airbag to collect gas, and carries out component analysis by gas-chromatography,
Reaction result is shown in Table 1.
By catalytic coal gasification material and the coal less than 2.5mm of second part of the 2.5-5mm of second part
Catalytic gasification reaction material mechanical mixture is uniform, takes 10g(load capacity therein and is shown in Table 1), at pressure be
3.5MPa, temperature is 700 DEG C, and initially entering ratio of water to coal is that 0.68ml/h/g(ratio of water to coal is water flow velocity
Ratio with carbon content in coal quality), nitrogen reacts 3 using the flow velocity of 60ml/min under conditions of blowing gas
Individual hour, middle per half an hour took airbag to collect gas, and carries out component analysis by gas-chromatography, reaction
The results are shown in Table 1.
Table 1
A. potassium carbonate load capacity refers to the quality introducing potassium carbonate in coal dust and coal dust and the ratio of potassium carbonate quality summation；
B. institute's carbon containing in coal dust before the quality of institute's carbon containing accounts for catalytic coal gasifaction in gas after efficiency of carbon con version refers to coal dust catalytic gasification
The percentage composition of quality；
C. methane production refers to volume (the cubic meter number being converted under standard state) and the matter of carbon in raw material of the methane produced
The ratio of amount.
Embodiment 5
Selection does not connect ditch bituminous coal (phosphorus content is about 60 mass %) and is crushed to particle diameter as coal, process
At below 10mm, (particle diameter is distributed as the coal dust less than 2mm and accounts for 37 mass % scope, more than or equal to 2mm
To accounting for 27 mass % less than the coal dust of 5mm scope, particle diameter is distributed as more than or equal to 5mm to less than 8mm
The coal dust of scope accounts for 24 mass %, and particle diameter is distributed as more than or equal to 8mm to less than or equal to 10mm scope
Coal dust account for 12 mass %)；Being classified as particle size range is the Part I (average particle less than 2mm
Footpath 0.73mm), particle size range is to the Part II (average grain diameter less than 5mm more than or equal to 2mm
3.6mm), particle size range is to the Part III (average grain diameter less than 8mm more than or equal to 5mm
6.2mm), and particle size range is (flat to the Part IV less than or equal to 10mm more than or equal to 8mm
All particle diameter 9.1mm)；Carry out immersive contact the most as follows:
1.8g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 12g's
8-10mm(more than or equal to 8mm to less than or equal to 10mm scope) Part IV coal dust immersive contact,
The mixture after being contacted for 1 hour is stood after stirring；
2.88g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 24g's
5-8mm(particle size range is to less than 8mm more than or equal to 5mm) Part III coal dust immersive contact,
The mixture after being contacted for 1 hour is stood after stirring；
2.7g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 27g's
2-5mm(particle size range is to less than 5mm more than or equal to 2mm) Part II coal dust immersive contact,
The mixture after being contacted for 1 hour is stood after stirring；
1.85g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 37g's
Part I coal dust immersive contact less than 2mm, stands after stirring after within 1 hour, being contacted
Mixture；
By the mixture after above-mentioned four part contact each in 105 DEG C of drying.
Four part catalytic coal gasification material mechanical mixture are uniform, take wherein 10g reaction material (load capacity
It is shown in Table 2), it is 3.5MPa at pressure, temperature is 700 DEG C, and initially entering ratio of water to coal is 0.68ml/h/g(water
Coal is than the ratio being water flow velocity and carbon content in coal quality), nitrogen is using the flow velocity of 60ml/min as blowing gas
Under conditions of react 3 hours, take middle per half an hour airbag to collect gas, and carry out by gas-chromatography
Component analysis, reaction result is shown in Table 2.
Embodiment 6
Selection does not connect ditch bituminous coal (phosphorus content is about 60 mass %) and is crushed to particle diameter as coal, process
At below 10mm, (the particle diameter distribution coal dust less than 4mm accounts for 77 mass % to scope, and particle diameter is distributed as greatly
In accounting for 23 mass % equal to 4mm to the coal dust less than or equal to 10mm)；It is classified as particle size range little
In the Part I (average grain diameter 2.3mm) of 4mm, particle size range is to being less than more than or equal to 4mm
Part II (average grain diameter 6.5mm) equal to 10mm, carries out immersive contact the most as follows:
4.6g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate obtained and the grain of 23g
Footpath scope is more than or equal to 4mm to the Part II coal dust immersive contact less than or equal to 10mm, stirring
The mixture after being contacted for 1 hour is stood after uniformly；
11.55g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 77g's
The particle size range Part I coal dust immersive contact less than 4mm, stands after stirring and obtains for 1 hour
Mixture after contact；
Mixture after being contacted by above-mentioned two parts is each in 105 DEG C of drying.
Two parts catalytic coal gasification material mechanical mixture is uniform, take wherein 10g reaction material (load capacity
It is shown in Table 2), it is 3.5MPa at pressure, temperature is 700 DEG C, and initially entering ratio of water to coal is 0.68ml/h/g(water
Coal is than the ratio being water flow velocity and carbon content in coal quality), nitrogen is using the flow velocity of 60ml/min as blowing gas
Under conditions of react 3 hours, take middle per half an hour airbag to collect gas, and carry out by gas-chromatography
Component analysis, reaction result is shown in Table 2.
Embodiment 7
Selection does not connect ditch bituminous coal (phosphorus content is about 60 mass %) and is crushed to particle diameter model as coal, process
(the particle diameter distribution coal dust less than 1mm accounts for 64 mass %, and particle diameter is distributed as being more than to be trapped among below 5mm
Equal to 1mm to accounting for 24 mass % less than the coal dust of 3mm scope, particle diameter is distributed as more than or equal to 3mm
To accounting for 12 mass % less than or equal to the coal dust of 5mm scope)；It is classified as particle size range less than 1mm's
Part I (average grain diameter 0.43mm), particle size range is to less than the of 3mm more than or equal to 1mm
Two parts (average grain diameter 1.24mm) and particle size range are to less than or equal to 5mm more than or equal to 3mm
Part III (average grain diameter 3.85mm), carry out immersive contact the most as follows:
1.2g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 12g's
The Part III coal dust immersive contact of 3-5mm, stands the mixing after being contacted for 1 hour after stirring
Thing；
1.92g potassium carbonate is dissolved in 50ml deionized water, by the solution of potassium carbonate that obtains with 24g's
The Part II coal dust immersive contact of 1-3mm, stands the mixing after being contacted for 1 hour after stirring
Thing；
3.2g potassium carbonate is dissolved in 50ml deionized water, little by the solution of potassium carbonate that obtains and 64g
In the Part I coal dust immersive contact of 1mm, after stirring, stand mixing after being contacted for 1 hour
Compound；
By the mixture after above-mentioned three part contact each in 105 DEG C of drying.
By three part catalytic coal gasification material mechanical mixture uniformly (load capacity is shown in Table 2), wherein 10g is taken
Reaction material, is 3.5MPa at pressure, and temperature is 700 DEG C, and initially entering ratio of water to coal is 0.68ml/h/g(water
Coal is than the ratio being water flow velocity and carbon content in coal quality), nitrogen is using the flow velocity of 60ml/min as blowing gas
Under conditions of react 3 hours, take middle per half an hour airbag to collect gas, and carry out by gas-chromatography
Component analysis, reaction result is shown in Table 2.
Table 2
| Embodiment 5 | Embodiment 6 | Embodiment 7 | |
| Potassium carbonate load capacity % | 9.23 | 16.15 | 6.32 |
| Efficiency of carbon con version % | 90.31 | 68.23 | 93.72 |
| Methane production (Nm3/KgC) | 0.29 | 0.27 | 0.31 |
From the comparative result of embodiment Yu comparative example, the method using the present invention, pulverized coal sieve is divided into
Many parts that particle size range is different, then each impregnate so that the amount impregnated on rough coal powder is big, and duff
On powder, the amount of dipping is little, and (rough coal powder can be from routine so can be effectively improved the gasification reactivity of rough coal powder
About 45% efficiency of carbon con version improve to more than 90%, methane conversion improves the most further), and base
Originally will not reduce the gasification reactivity of fine breeze, and effectively reduce the load of catalyst on fine breeze
Amount, such that it is able to reduce due to the loss taking the catalyst caused out of of fine breeze, improves on the whole
The effective rate of utilization of catalyst, overall efficiency of carbon con version can from conventional about 75% improve to 90% with
On.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, can be to the technical side of the present invention
Case carries out multiple simple variant, and these simple variant belong to protection scope of the present invention.
Claims (24)
1. a catalytic coal gasification material, this catalytic coal gasification material includes coal dust and is supported on institute
State the catalytic coal gasifaction catalyst on coal dust, it is characterised in that described coal dust includes what particle diameter increased successively
Many parts, and relative to the coal dust of same mass unit, negative on the coal dust that adjacent rear portion particle diameter is big
Load on the coal dust that the amount of the catalytic coal gasifaction catalyst carried is little no less than adjacent front portion particle diameter
The amount of catalytic coal gasifaction catalyst.
Catalytic coal gasification material the most according to claim 1, wherein, adjacent rear portion
The average grain diameter of coal dust is than the big 0.1mm-6mm of average grain diameter of adjacent front portion coal dust；Relative to
The coal dust of same mass unit, on the coal dust that adjacent rear portion particle diameter is big, the catalytic coal gasifaction of load is urged
The amount of the catalytic coal gasifaction catalyst of load on the coal dust that the amount of agent is less than adjacent front portion particle diameter
Many 0.4-20 quality %.
Catalytic coal gasification material the most according to claim 2, wherein, adjacent rear portion
The average grain diameter of coal dust is than the big 0.5mm-4mm of average grain diameter of adjacent front portion coal dust；Relative to
The coal dust of same mass unit, on the coal dust that adjacent rear portion particle diameter is big, the catalytic coal gasifaction of load is urged
The amount of the catalytic coal gasifaction catalyst of load on the coal dust that the amount of agent is less than adjacent front portion particle diameter
Many 1-10 quality %.
4. according to the catalytic coal gasification material described in any one in claim 1-3, wherein, institute
The particle diameter upper limit stating coal dust is 10mm, and described coal dust includes five parts that particle diameter increases successively, wherein,
The particle diameter of this five part is respectively less than 2mm, more than or equal to 2mm and less than 4mm, is more than or equal to
4mm and less than 6mm, more than or equal to 6mm and less than 8mm, more than or equal to 8mm and be less than or equal to
10mm。
5. according to the catalytic coal gasification material described in any one in claim 1-3, wherein, institute
The particle diameter upper limit stating coal dust is 10mm, and described coal dust includes four parts that particle diameter increases successively, wherein,
This tetrameric particle diameter is respectively less than 2mm, more than or equal to 2mm and less than 5mm, is more than or equal to
5mm and less than 8mm, more than or equal to 8mm and less than or equal to 10mm.
6. according to the catalytic coal gasification material described in any one in claim 1-3, wherein, institute
The particle diameter upper limit stating coal dust is 10mm, and described coal dust includes three parts that particle diameter increases successively, wherein,
The particle diameter of this three part is respectively less than 3mm, more than or equal to 3mm and less than 6mm, is more than or equal to
6mm and less than or equal to 10mm.
7. according to the catalytic coal gasification material described in any one in claim 1-3, wherein, institute
The particle diameter upper limit stating coal dust is 5mm, and described coal dust includes three parts that particle diameter increases successively, wherein,
The particle diameter of this three part is respectively less than 1mm, more than or equal to 1mm and less than 3mm, is more than or equal to
3mm and less than or equal to 5mm.
8. according to the catalytic coal gasification material described in any one in claim 1-3, wherein, institute
The particle diameter upper limit stating coal dust is 5mm, and described coal dust includes two parts that particle diameter increases successively, wherein,
This two-part particle diameter is respectively less than 2.5mm, more than or equal to 2.5mm and less than or equal to 5mm.
9. according to the catalytic coal gasification material described in any one in claim 1-3, wherein, institute
Stating catalytic coal gasifaction catalyst is potassium hydroxide, potassium oxide, potassium carbonate, sodium carbonate, NaOH and oxygen
Change one or more in sodium.
10. according to the catalytic coal gasification material described in any one in claim 1-3, wherein, institute
Stating coal dust is one or more in brown coal powder, bituminous coal powder and anchracite duff.
The preparation method of 11. 1 kinds of catalytic coal gasification material, it is characterised in that the method includes:
The many parts coal dust increased successively by particle diameter each soaks with the solution containing catalytic coal gasifaction catalyst
Stain contacts, and the condition of immersive contact makes, relative to the coal dust of same mass unit, adjacent rear one
On the coal dust that part particle diameter is big, the amount of the catalytic coal gasifaction catalyst of dipping is no less than adjacent front portion
The amount of the catalytic coal gasifaction catalyst of dipping on the coal dust that particle diameter is little.
12. preparation methods according to claim 11, wherein, adjacent rear portion coal dust
Average grain diameter is than the big 0.1mm-6mm of average grain diameter of adjacent front portion coal dust；And immersive contact
Condition makes, and relative to the coal dust of same mass unit, the coal dust that adjacent rear portion particle diameter is big soaks
On the coal dust that the amount of the catalytic coal gasifaction catalyst of stain is less than adjacent front portion particle diameter, the coal of dipping is urged
Change amount many 0.4-20 quality % of gasifying catalyst.
13. preparation methods according to claim 12, wherein, adjacent rear portion coal dust
Average grain diameter is than the big 0.5mm-4mm of average grain diameter of adjacent front portion coal dust；And immersive contact
Condition makes, and relative to the coal dust of same mass unit, the coal dust that adjacent rear portion particle diameter is big soaks
On the coal dust that the amount of the catalytic coal gasifaction catalyst of stain is less than adjacent front portion particle diameter, the coal of dipping is urged
Change amount many 1-10 quality % of gasifying catalyst.
14. according to the preparation method described in any one in claim 11-13, wherein, and described coal dust
The particle diameter upper limit be 10mm, described coal dust includes five parts that particle diameter increases successively, wherein, these five
Point particle diameter be respectively less than 2mm, more than or equal to 2mm and less than 4mm, more than or equal to 4mm and
Less than 6mm, more than or equal to 6mm and less than 8mm, more than or equal to 8mm and less than or equal to 10mm.
15. according to the preparation method described in any one in claim 11-13, wherein, and described coal dust
The particle diameter upper limit be 10mm, described coal dust includes four parts that particle diameter increases successively, wherein, these four
Point particle diameter be respectively less than 2mm, more than or equal to 2mm and less than 5mm, more than or equal to 5mm and
Less than 8mm, more than or equal to 8mm and less than or equal to 10mm.
16. according to the preparation method described in any one in claim 11-13, wherein, and described coal dust
The particle diameter upper limit be 10mm, described coal dust includes three parts that particle diameter increases successively, wherein, these three
Point particle diameter be respectively less than 3mm, more than or equal to 3mm and less than 6mm, more than or equal to 6mm and
Less than or equal to 10mm.
17. according to the preparation method described in any one in claim 11-13, wherein, and described coal dust
The particle diameter upper limit be 5mm, described coal dust includes three parts that particle diameter increases successively, wherein, these three
Point particle diameter be respectively less than 1mm, more than or equal to 1mm and less than 3mm, more than or equal to 3mm and
Less than or equal to 5mm.
18. according to the preparation method described in any one in claim 11-13, wherein, and described coal dust
The particle diameter upper limit be 5mm, described coal dust includes two parts that particle diameter increases successively, wherein, these two
The particle diameter divided is respectively less than 2.5mm, more than or equal to 2.5mm and less than or equal to 5mm.
19. according to the preparation method described in any one in claim 11-13, and wherein, described coal is urged
Change gasifying catalyst is in potassium hydroxide, potassium oxide, potassium carbonate, sodium carbonate, NaOH and sodium oxide molybdena
One or more.
20. according to the preparation method described in any one in claim 11-13, and wherein, described coal is urged
Change gasifying catalyst is one or more in potassium hydroxide, potassium carbonate, sodium carbonate and NaOH, institute
The solvent stated in the solution containing catalytic coal gasifaction catalyst contains water.
21. according to the preparation method described in any one in claim 11-13, wherein, and described coal dust
For one or more in brown coal powder, bituminous coal powder and anchracite duff.
22. according to the preparation method described in any one in claim 11-13, and wherein, the method is also
Including: by the many part mixes obtained after immersive contact mixing or do not mix and be dried.
The catalytic coal gasifaction that in 23. claims 11-22, preparation method described in any one prepares
Reaction material.
Catalytic coal gasification material described in any one and claim in 24. claims 1-10
The catalytic coal gasification material that in 11-22, preparation method described in any one prepares is catalyzed gas at coal
Application in change.
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| JP2011111511A (en) * | 2009-11-25 | 2011-06-09 | Micro Energy:Kk | Regeneration treatment method of carbon compound, gasification apparatus and regeneration treatment system |
| CN102465047A (en) * | 2010-11-02 | 2012-05-23 | 新奥科技发展有限公司 | Method for preparing methane by catalyzing and gasifying coal |
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| JP2011111511A (en) * | 2009-11-25 | 2011-06-09 | Micro Energy:Kk | Regeneration treatment method of carbon compound, gasification apparatus and regeneration treatment system |
| CN102465047A (en) * | 2010-11-02 | 2012-05-23 | 新奥科技发展有限公司 | Method for preparing methane by catalyzing and gasifying coal |
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