CN107987858A - A kind of production technology and technology of HIGH-POWERED MICROWAVES pyrolysis biomass - Google Patents
A kind of production technology and technology of HIGH-POWERED MICROWAVES pyrolysis biomass Download PDFInfo
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- CN107987858A CN107987858A CN201711306843.4A CN201711306843A CN107987858A CN 107987858 A CN107987858 A CN 107987858A CN 201711306843 A CN201711306843 A CN 201711306843A CN 107987858 A CN107987858 A CN 107987858A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B23/00—Other methods of heating coke ovens
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of production technology and technology of HIGH-POWERED MICROWAVES pyrolysis biomass,Its solid-state biomass raw material that need not will be crushed adds closed and shielding microwave-heating furnace chamber,By the size for controlling microwave feed-in power,The length of microwave feed-in time,The temperature of adjusting microwave-heating stove intracavitary uniformly rises to biomass material and is pyrolyzed and produces flue gas,The pressure for monitoring pyrolysis oven intracavitary controls flue gas evacuation system,Pyrogenically prepared solid-state charcoal,Obtained biomass pyrolysis liquid after pyrolysis smoke is condensed,Remaining fuel gas purification is clean biomass energy,Whole pyrolytic process carries out in closed system,Thermal decomposition product all recycles,And it is fully utilized,There is no waste discharge,Realize clean manufacturing,Realize extensive,Efficiently,Continuous industrialized production,Whole-course automation controls,Reliable production technology and technology are provided for the integrated industrial application of biomass,Can be widely used for that other allied substances are carried out to industrialize closed heating,Pyrolysis or denaturation treatment.
Description
Technical field
The present invention relates to the production technology and technology of a kind of HIGH-POWERED MICROWAVES pyrolysis biomass.
Background technology
At present widely use and can continuously be pyrolyzed biomass industrial production device be mainly fixed bed, fluid bed,
Entrained flow, more furnace apparatus, revolving burner, rotating cone reactor, spiral pyrolysis reactor etc., this kind of device use biomass burning
It is or big by heat exchange pattern heating biological matter from outside to inside, heat-energy losses；The energy consumption of biomass material pretreatment it is big and into
This height；System complex, equipment is huge, and production environment is severe；It is only capable of that biomass is gasified or liquefied, product is single, matter
Amount and later use rate are poor；The availability of biomass resource is greatly reduced, and therefore economic benefit also reduces, largely discharge residual
Excess, is unfavorable for clean manufacturing and environmental protection, these factors all cause biomass resource utilization, technological progress, the marketization to push away
Wide and application is had difficulty in taking a step.
Microwave heating is not required to heat transfer from outward appearance to inner essence, but is directly added by energy dissipation of the microwave inside material
Thermal material, can efficiently reduce the temperature gradient inside material, meanwhile, there is selectivity to heat for microwave heating, heating rate is fast,
The features such as automatically controlling and chemical reaction temperature can be reduced and advantage are easily achieved, therefore the application of microwave heating industrially is increasingly
Extensively.Microwave current heating equipment is concentrated mainly on low-temperature heat application aspect, such as food-dewatering processing, the drying of wood, rubber
Vulcanization etc..Microwave high-temperature heating refers to material is heated at least more than 300 DEG C using microwave energy, and material is burnt
Knot, synthesis, pyrolysis, a kind of modified or heat treatment technology.Due to the power limited of microwave generator, high temperature microwave reactor
Cavity volume and material finite capacity, micro-wave screening, furnace chamber wave transparent and insulation plus maximization are difficult to realize at the same time, so nothing
Method makes furnace chamber and its uniform temperature zone maximize, and can only carry out furnace chamber size and the less high temperature microwave heating of material handling capacity.
CN104357071A is disclosed a kind of oriented using microwave catalysis pyrolysis biomass and produces biomass carbon, bio-oil and biomass
The method of gas, by biomass through cleaning, crush, it is dry after, add and metallic salt or metal oxide catalyst and mix equal
It is even, it is heated to 500~700 DEG C with the heating rate of 30~50 DEG C/min and 30~60min of pyrolysis is carried out in microwave reactor, obtains
To gaseous product and solid product, gaseous product rapid condensation, can coagulate part directly condensation becomes liquid phase high-quality biological matter oil,
On-condensible gas is high heating value gaseous fuel, after solid product cools to room temperature with the furnace, obtains high yield biomass carbon.But the technology
Scheme does not suggest that the industry that biomass how is pyrolyzed using HIGH-POWERED MICROWAVES still in the experimental study stage of small-size laboratory
The technical solution of metaplasia production, and utilize HIGH-POWERED MICROWAVES（200~800KW of microwave output general power）Carry out continuously, on a large scale
Ground is pyrolyzed many technical barriers of biomass, such as：How feed-in is high-power, highdensity microwave, to meet to be pyrolyzed biomass institute
300~1250 DEG C are needed, the temperature of even more high, not only acts on biomass material uniform high-efficiency, but also effectively avoids microwave
The damage of device；How to ensure in the pyrolysis cavity of large space, the temperature of actual observing and controlling microwave field, accurate control pyrolysis biomass
Microwave temperature gradient；How the pyrolysis smoke of timely pump drainage microwave cavity, control pressure, carries out effective gas-liquid oil separation and net
Change etc., it is always the focus and difficult point of Biomass Energy Resources comprehensive utilization to realize industrialized production, and the research of correlation technique is just firm
Start.
In addition, the addition of catalyst, easily cause in pyrolysis biomass product the residual of metallic salt or metal oxide and
Pollution.
The content of the invention
The object of the present invention is to provide the production technology and technology of a kind of HIGH-POWERED MICROWAVES pyrolysis biomass, based on a kind of profit
With the industrial production device of HIGH-POWERED MICROWAVES pyrolysis biomass（Separately apply）, its solid-state biomass that need not will be crushed original
Material adds closed and shielding microwave-heating furnace chamber, by controlling the size of microwave feed-in power, the length of microwave feed-in time,
The temperature of adjusting microwave-heating stove intracavitary uniformly rises to biomass material and is pyrolyzed and produces flue gas, and the pressure of pyrolysis oven intracavitary is permanent
It is scheduled on 0~-1000Pa, monitors the pressure of pyrolysis oven intracavitary to control flue gas evacuation system, pyrolysis final temperature is 300~1250
DEG C, the pyrolysis whole process time is 60~360 minutes, pyrogenically prepared solid-state charcoal, obtained biomass pyrolytic after pyrolysis smoke is condensed
Liquid, remaining fuel gas purification is clean biomass energy, is used for internal combustion type gas electricity generator, the production technology and technology
Propose a kind of new technical solution.It is former suitable for the pyrolysis of most biomass, the especially biomass such as wood, bamboo, bagasse
Material.
The present invention is to be achieved through the following technical solutions, a kind of production technology and skill of HIGH-POWERED MICROWAVES pyrolysis biomass
Art, the prominent distinction of itself and the prior art are：
（1）By 2000~3500kg, 1~350mm of granularity, moisture is 5~50% wood, bamboo or bagasse, adds pyrolysis furnace chamber,
After closing fire door, start evacuation system, it is 0~-350Pa to keep pyrolysis oven cavity pressure, is opened with 180~300KW of microwave general power
Beginning is continuously fed to microwave energy, and the time is 1~5 minute, reaches 300~500KW to microwave general power；
（2）It is 300~500KW to keep microwave general power, continues feed-in microwave energy, and the time is 20~40 minutes, and pyrolysis furnace chamber is put down
After equal temperature rises to 100~150 DEG C, control, adjust evacuation system, and it is 0~-500Pa to keep pyrolysis oven cavity pressure；
（3）It is 300~500KW to keep microwave general power, continues feed-in microwave energy, and the time is 30~60 minutes, and pyrolysis furnace chamber is put down
After equal temperature rises to 270~350 DEG C, control, adjust evacuation system, and it is 0~-1000Pa to keep pyrolysis oven cavity pressure；
（4）It is 300~500KW to keep microwave general power, continues feed-in microwave energy, and the time is 10~40 minutes, and pyrolysis furnace chamber is put down
After equal temperature rises to 300~450 DEG C, control, adjust evacuation system, and it is 0~-1000Pa to keep pyrolysis oven cavity pressure；
（5）It is 300~500KW to keep microwave general power, continues feed-in microwave energy, and the time is 60~80 minutes, and pyrolysis furnace chamber is put down
After equal temperature rises to 750~900 DEG C, control, adjust evacuation system, and it is 0~-650Pa to keep pyrolysis oven cavity pressure；
（6）It is 250~300KW to downgrade microwave general power, continues feed-in microwave energy, and the time is after 10~30 minutes, downgrades microwave
General power is 150~200KW, and after pyrolysis furnace chamber mean temperature rises to 300~1250 DEG C, control, adjust evacuation system, keeps heat
Solution furnace chamber pressure is 0~-500Pa, and the duration is 20~30 minutes；
（7）Close microwave source, stop the feed-in of microwave energy, control, adjust evacuation system, keep pyrolysis oven cavity pressure for 0~-
350Pa.Duration is 5~10 minutes；
（8）Flue gas separation and collection system are sent into by the pyrolysis smoke of pump drainage, 90~95% tar is decomposed through gs-oil separator
Afterwards, three sections of condensers are sequentially entered, temperature is brought down below 25~35 DEG C step by step, and the biomass pyrolytic of three kinds of different warm areas is made
Liquid；Solid-state charcoal discharges pyrolysis furnace chamber through hopper；After remaining fuel gas is purified, as clean biomass energy, directly supply
The power generation of internal combustion type gas electricity generator uses.
Biomass material is a kind of absorption preferable material of microwave energy in itself, therefore carries out the mistake of microwave-heating in biomass
Cheng Zhong, auxiliary heating is carried out without in addition adding the good material of other catalyst and absorbing property.Most biomass
Raw material all contains certain moisture, increases the power of microwave feed-in, controls the length of microwave feed-in time, in moisture evaporation effusion simultaneously
Before departing from biomass material, it is rapidly reached biomass material and be pyrolyzed required temperature, promote biomass to start to be pyrolyzed.
Microwave-heating stove ensures the temperature of pyrolysis furnace outer wall as made by with the good material of wave, fire resisting, insulation, heat-proof quality
No more than 70 DEG C, furnace chamber outer wall microwave scattering space made of metal is wrapped up, this is also microwave generator and high temperature pyrolysis stove
The insulating space of chamber, makes microwave after fully scattering while uniform feed-in pyrolysis furnace chamber, protects microwave generator and conduction to set
Standby safe operation.High-temperature flue gas caused by biomass pyrolytic is timely and effectively discharged into microwave-heating furnace chamber, keeps pyrolysis
Furnace chamber endogenous substance pyrolysis atmosphere is normal, the data such as component in stove cavity pressure, temperature, pyrolysis gas product, is controlled as PLC
Vacuum pump or roots blower composition flue gas exhaust device control parameter, after testing, feedback and revise signal, output control refer to
Order can adjust pump drainage amount or the exhaust device continuously run in due course, realize production automation remote control to next step.
The present invention shortens for 55~90% time, greatly compared with tradition or conventional pyrolysis biomass production technology and technology
Improve production efficiency greatly；Reduce energy consumption 50~80%；Whole pyrolytic process carries out in closed system, and thermal decomposition product is whole
Utilize, without waste discharge, realize clean manufacturing；The various products of pyrolysis biomass are all recycled, and are fully utilized,
Drastically increase the utilization ratio of biomass energy；Automated control, realizes extensive, efficient, continuous industrialized production, no
The integrated industrial application of only biomass provides reliable production technology and technology, is but also widely used for coal, tar
And the material such as organic waste carries out industrialization pyrolysis and other available microwaves carry out the closed heating or denaturation of heated material.
With reference to the accompanying drawings and detailed description, the invention will be further described.
Brief description of the drawings
Fig. 1 is the process flow chart of the present invention.
Embodiment
Embodiment is further intended to be described in detail and explains the present invention, rather than limits this hair in any way
Bright, those of ordinary skill in the art's any simple modifications made for the present invention and replacement, should all fall into protection model of the invention
Within enclosing.
Embodiment 1：
（1）By 3000kg 10~200mm of granularity, moisture is 5% sawdust or wooden unit, adds microwave-heating furnace chamber, is closing fire door
Afterwards, evacuation system is started, it is -350Pa to keep pyrolysis oven cavity pressure, starts to be continuously fed to microwave energy with microwave general power 240KW,
Time is 5 minutes, reaches 400KW to microwave general power；
（2）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 30 minutes, and pyrolysis furnace chamber mean temperature rises to
After 120 DEG C, pyrolysis oven cavity pressure, temperature start to increase, and the smoke discharge tube of microwave-heating furnace chamber has not detected carbon monoxide, two
Carbonoxide and paraffin gas output, control, adjust evacuation system, and it is -500Pa to keep pyrolysis oven cavity pressure, excludes pyrolysis furnace chamber
Interior vapor；
（3）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 40 minutes, and pyrolysis furnace chamber mean temperature rises to
After 330 DEG C, being pyrolyzed the smoke discharge tube detection of furnace chamber has carbon monoxide, carbon dioxide and paraffin gas output, and control, adjust and take out
Heat-extraction system, it is -1000Pa to keep pyrolysis oven cavity pressure, excludes the flue gas in furnace cavity；
（4）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 20 minutes, and pyrolysis furnace chamber mean temperature rises to
After 450 DEG C, the pyrolytic reaction aggravation of biomass material, cavity temperature starts rapid increase, is pyrolyzed the smoke discharge tube detection of furnace chamber
Have a large amount of carbon monoxide, carbon dioxide and a paraffin gas output, control, adjust evacuation system, keep pyrolysis oven cavity pressure for-
1000Pa, had not only ensured that pyrolysis oven intracavitary flue gas can smoothly and rapidly exclude cavity, but also will not be because of excessive pump drainage and by outside furnace chamber
Air be drawn into furnace chamber；
（5）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 70 minutes, and pyrolysis furnace chamber mean temperature rises to
After 850 DEG C, control, adjust evacuation system, and it is -650Pa to keep pyrolysis oven cavity pressure, and the flue gas for being pyrolyzed furnace chamber is all discharged stove
Chamber；
（6）It is 240KW to downgrade microwave general power, continues feed-in microwave energy, and the time is that downgrading microwave general power is after 15 minutes
200KW, after pyrolysis furnace chamber mean temperature rises to 1250 DEG C, carries out high-temperature calcination.Control, adjust evacuation system, keeps pyrolysis oven
Cavity pressure is -500Pa.Duration is 20 minutes；The discharge pipe flue gas of pyrolysis furnace chamber, which is only capable of detection, a small amount of carbon monoxide
And alkane, remaining part are carbon dioxide and nitrogen etc.；
（7）Close microwave source, stop the feed-in of microwave energy, control, adjust evacuation system, keep pyrolysis oven cavity pressure for-
350Pa.Duration is 5 minutes, and carbon monoxide, alkane and carbon dioxide are no longer produced in furnace chamber, and biomass material is all complete
Into pyrolysis, solid-state charcoal has been formed, and microwave-heating biomass process is accused and completed, with the pyrolysis biology that can enter next batch
The production procedure of matter；
（8）Flue gas separation and collection system are all sent into by the pyrolysis smoke of pump drainage, 90% tar is decomposed through gs-oil separator
Afterwards, three sections of condensers are sequentially entered, as temperature is brought down below 35 DEG C step by step, flue gas is condensed into different cooling temperature sections
The biomass pyrolysis liquid of heterogeneity, through collecting, settling, standing and packing respectively, is made different biomass pyrolysis liquids, flue gas
In no longer containing the component of liquid can be condensed at normal temperatures, solid-state charcoal discharges pyrolysis furnace chamber through hopper；Remaining combustible gas
Body is purified as clean biomass energy, used for internal combustion type gas electricity generator after tar filtering sedimentation.
The result of embodiment 1 such as table 1：
Table 1
。
Embodiment 2：
（1）By 3150kg 100~200mm of granularity, moisture is 12.86% bamboo wood or bamboo block, adds microwave-heating furnace chamber, is closing
Closed furnace behind the door, starts evacuation system, and it is -350Pa to keep pyrolysis oven cavity pressure, starts to be continuously fed to microwave general power 240KW
Microwave energy, time are 3 minutes, reach 400KW to microwave general power；
（2）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 30 minutes, and pyrolysis furnace chamber mean temperature rises to
After 120 DEG C, pyrolysis oven cavity pressure, temperature start to increase, and the smoke discharge tube of microwave-heating furnace chamber has not detected carbon monoxide, two
Carbonoxide and paraffin gas output, control, adjust evacuation system, and it is -500Pa to keep pyrolysis oven cavity pressure, excludes pyrolysis furnace chamber
Interior vapor；
（3）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 50 minutes, and pyrolysis furnace chamber mean temperature rises to
After 350 DEG C, being pyrolyzed the smoke discharge tube detection of furnace chamber has carbon monoxide, carbon dioxide and paraffin gas output, and control, adjust and take out
Heat-extraction system, it is -1000Pa to keep pyrolysis oven cavity pressure, excludes the flue gas in furnace cavity；
（4）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 20 minutes, and pyrolysis furnace chamber mean temperature rises to
After 450 DEG C, the pyrolytic reaction aggravation of biomass material, cavity temperature starts rapid increase, is pyrolyzed the smoke discharge tube detection of furnace chamber
Have a large amount of carbon monoxide, carbon dioxide and a paraffin gas output, control, adjust evacuation system, keep pyrolysis oven cavity pressure for-
1000Pa, had not only ensured that pyrolysis oven intracavitary flue gas can smoothly and rapidly exclude cavity, but also will not be because of excessive pump drainage and by outside furnace chamber
Air be drawn into furnace chamber；
（5）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 70 minutes, and pyrolysis furnace chamber mean temperature rises to
After 850 DEG C, control, adjust evacuation system, and it is -650Pa to keep pyrolysis oven cavity pressure, and the flue gas for being pyrolyzed furnace chamber is all discharged stove
Chamber；
（6）It is 240KW to downgrade microwave general power, continues feed-in microwave energy, and the time is that downgrading microwave general power is after 15 minutes
200KW, after pyrolysis furnace chamber mean temperature rises to 550 DEG C, carries out medium temperature calcining.Control, adjust evacuation system, keeps pyrolysis furnace chamber
Pressure is -500Pa.Duration is 20 minutes；Pyrolysis furnace chamber discharge pipe flue gas be only capable of detection have a small amount of carbon monoxide and
Alkane, remaining part are carbon dioxide and nitrogen etc.；
（7）Close microwave source, stop the feed-in of microwave energy, control, adjust evacuation system, keep pyrolysis oven cavity pressure for-
350Pa.Duration is 5 minutes, and carbon monoxide, alkane and carbon dioxide are no longer produced in furnace chamber, and biomass material is all complete
Into pyrolysis, solid-state bamboo charcoal has been formed, and microwave-heating biomass process is accused and completed, with the pyrolysis biology that can enter next batch
The production procedure of matter；
（8）Flue gas separation and collection system are all sent into by the pyrolysis smoke of pump drainage, 90% tar is decomposed through gs-oil separator
Afterwards, three sections of condensers are sequentially entered, as temperature is brought down below 35 DEG C step by step, flue gas is condensed into different cooling temperature sections
The biomass pyrolysis liquid of heterogeneity, through collecting, settling, standing and packing respectively, is made different biomass pyrolysis liquids, flue gas
In no longer containing the component of liquid can be condensed at normal temperatures, solid-state bamboo charcoal discharges pyrolysis furnace chamber through hopper；Remaining combustible gas
Body is purified as clean biomass energy, used for internal combustion type gas electricity generator after tar filtering sedimentation.
The result of embodiment 2 such as table 2：
Table 2
。
Implement 3：
（1）By 2000kg 1~30mm of granularity, moisture is 48% bagasse, adds microwave-heating furnace chamber, after fire door is closed, is started
Evacuation system, it is -350Pa to keep pyrolysis oven cavity pressure, starts to be continuously fed to microwave energy, time 1 with microwave general power 240KW
Minute, reach 400KW to microwave general power；
（2）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 30 minutes, and pyrolysis furnace chamber mean temperature rises to
After 120 DEG C, pyrolysis oven cavity pressure, temperature start to increase, and the smoke discharge tube of microwave-heating furnace chamber has not detected carbon monoxide, two
Carbonoxide and paraffin gas output, control, adjust evacuation system, and it is -500Pa to keep pyrolysis oven cavity pressure, excludes pyrolysis furnace chamber
Interior vapor；
（3）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 30 minutes, and pyrolysis furnace chamber mean temperature rises to
After 270 DEG C, being pyrolyzed the smoke discharge tube detection of furnace chamber has carbon monoxide, carbon dioxide and paraffin gas output, and control, adjust and take out
Heat-extraction system, it is -1000Pa to keep pyrolysis oven cavity pressure, excludes the flue gas in furnace cavity；
（4）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 20 minutes, and pyrolysis furnace chamber mean temperature rises to
After 300 DEG C, the pyrolytic reaction aggravation of biomass material, cavity temperature starts rapid increase, is pyrolyzed the smoke discharge tube detection of furnace chamber
Have a large amount of carbon monoxide, carbon dioxide and a paraffin gas output, control, adjust evacuation system, keep pyrolysis oven cavity pressure for-
1000Pa, had not only ensured that pyrolysis oven intracavitary flue gas can smoothly and rapidly exclude cavity, but also will not be because of excessive pump drainage and by outside furnace chamber
Air be drawn into furnace chamber；
（5）It is 400KW to keep microwave general power, continues feed-in microwave energy, and the time is 70 minutes, and pyrolysis furnace chamber mean temperature rises to
After 850 DEG C, control, adjust evacuation system, and it is -650Pa to keep pyrolysis oven cavity pressure, and the flue gas for being pyrolyzed furnace chamber is all discharged stove
Chamber；
（6）It is 240KW to downgrade microwave general power, continues feed-in microwave energy, and the time is that downgrading microwave general power is after 15 minutes
200KW, after pyrolysis furnace chamber mean temperature rises to 400 DEG C, carries out low temperature calcination.Control, adjust evacuation system, keeps pyrolysis furnace chamber
Pressure is -500Pa.Duration is 20 minutes；Pyrolysis furnace chamber discharge pipe flue gas be only capable of detection have a small amount of carbon monoxide and
Alkane, remaining part are carbon dioxide and nitrogen etc.；
（7）Close microwave source, stop the feed-in of microwave energy, control, adjust evacuation system, keep pyrolysis oven cavity pressure for-
350Pa.Duration is 5 minutes, and carbon monoxide, alkane and carbon dioxide are no longer produced in furnace chamber, and biomass material is all complete
Into pyrolysis, solid-state bagasse charcoal has been formed, and microwave-heating biomass process is accused and completed, and is given birth to the pyrolysis that can enter next batch
The production procedure of material；
（8）Flue gas separation and collection system are all sent into by the pyrolysis smoke of pump drainage, 90% tar is decomposed through gs-oil separator
Afterwards, three sections of condensers are sequentially entered, as temperature is brought down below 35 DEG C step by step, flue gas is condensed into different cooling temperature sections
The biomass pyrolysis liquid of heterogeneity, through collecting, settling, standing and packing respectively, is made different biomass pyrolysis liquids, flue gas
In no longer containing the component of liquid can be condensed at normal temperatures, solid-state bagasse charcoal discharges pyrolysis furnace chamber through hopper；It is remaining flammable
Gas is purified as clean biomass energy, used for internal combustion type gas electricity generator after tar filtering sedimentation.
The result of embodiment 3 such as table 3：
Table 3
。
Claims (1)
1. a kind of production technology and technology of HIGH-POWERED MICROWAVES pyrolysis biomass, it is characterised in that：
（1）By 2000~3500kg, 1~350mm of granularity, moisture is 5~50% wood, bamboo or bagasse, adds pyrolysis furnace chamber,
After closing fire door, start evacuation system, it is 0~-350Pa to keep pyrolysis oven cavity pressure, is opened with 180~300KW of microwave general power
Beginning is continuously fed to microwave energy, and the time is 1~5 minute, reaches 300~600KW to microwave general power；
（2）It is 300~600KW to keep microwave general power, continues feed-in microwave energy, and the time is 20~40 minutes, and pyrolysis furnace chamber is put down
After equal temperature rises to 100~150 DEG C, control, adjust evacuation system, and it is 0~-500Pa to keep pyrolysis oven cavity pressure；
（3）It is 300~600KW to keep microwave general power, continues feed-in microwave energy, and the time is 30~60 minutes, and pyrolysis furnace chamber is put down
After equal temperature rises to 270~350 DEG C, control, adjust evacuation system, and it is 0~-1000Pa to keep pyrolysis oven cavity pressure；
（4）It is 300~600KW to keep microwave general power, continues feed-in microwave energy, and the time is 10~40 minutes, and pyrolysis furnace chamber is put down
After equal temperature rises to 300~450 DEG C, control, adjust evacuation system, and it is 0~-1000Pa to keep pyrolysis oven cavity pressure；
（5）It is 300~600KW to keep microwave general power, continues feed-in microwave energy, and the time is 60~80 minutes, and pyrolysis furnace chamber is put down
After equal temperature rises to 750~900 DEG C, control, adjust evacuation system, and it is 0~-650Pa to keep pyrolysis oven cavity pressure；
（6）It is 250~300KW to downgrade microwave general power, continues feed-in microwave energy, and the time is after 10~30 minutes, downgrades microwave
General power is 150~200KW, and after pyrolysis furnace chamber mean temperature rises to 400~1250 DEG C, control, adjust evacuation system, keeps heat
Solution furnace chamber pressure is 0~-500Pa, and the duration is 20~30 minutes；
（7）Close microwave source, stop the feed-in of microwave energy, control, adjust evacuation system, keep pyrolysis oven cavity pressure for 0~-
350Pa, duration are 5~10 minutes；
（8）Flue gas separation and collection system are sent into by the pyrolysis smoke of pump drainage, 90~95% tar is decomposed through gs-oil separator
Afterwards, three sections of condensers are sequentially entered, temperature is brought down below 25~35 DEG C step by step, and the biomass pyrolytic of three kinds of different warm areas is made
Liquid；Solid-state charcoal discharges pyrolysis furnace chamber through hopper；After remaining fuel gas is purified, as clean biomass energy, directly supply
The power generation of internal combustion type gas electricity generator uses.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114309023A (en) * | 2021-11-22 | 2022-04-12 | 中国科学院理化技术研究所 | Low-temperature and low-power carbon-containing material microwave treatment process |
| CN114378099A (en) * | 2021-12-30 | 2022-04-22 | 中国科学院广州能源研究所 | Microwave pyrolysis-based retired photovoltaic module efficient thermal stratification system and method |
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