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CN110115878A - A kind of the double circulation desulphurization system and sulfur method of the burning of solid fuel chemistry chain - Google Patents

A kind of the double circulation desulphurization system and sulfur method of the burning of solid fuel chemistry chain Download PDF

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Publication number
CN110115878A
CN110115878A CN201910308346.0A CN201910308346A CN110115878A CN 110115878 A CN110115878 A CN 110115878A CN 201910308346 A CN201910308346 A CN 201910308346A CN 110115878 A CN110115878 A CN 110115878A
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reactor
fuel
stage
separation chamber
solid
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罗明
董宇航
周伦正
王超
易旸
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Jiangsu University
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Jiangsu University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456Removing acid components
    • B01D53/1468Removing hydrogen sulfide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456Removing acid components
    • B01D53/1481Removing sulfur dioxide or sulfur trioxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1487Removing organic compounds

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The invention discloses the double circulation desulphurization systems and sulfur method of a kind of burning of solid fuel chemistry chain, including air reactor, air reactor connects the entrance of the first cyclone separator, the dipleg of first cyclone separator connects fuel reactor, the product oxygen carrier of air reactor is inputted into fuel reactor, the upper end of fuel reactor connects the second cyclone separator, second cyclone separator separates the product of fuel reactor, solid product is inputted into separation chamber, separation chamber is by solid product oxygen carrier input air reactor, the unconverted carbon particle of solid product and desulfurizing agent are inputted into fuel reactor;The present invention improves residence time of the unconverted carbon particle in fuel reactor, to improve the efficiency of carbon con version of system, improve residence time of the desulfurizing agent in fuel reactor and the time of contact with solid fuel, significantly improve the desulfuration efficiency of desulfurizing agent, Ca/S molar ratio is reduced, to reduce the operating cost of sweetening process.

Description

A kind of the double circulation desulphurization system and sulfur method of the burning of solid fuel chemistry chain
Technical field
The invention belongs to fuel low-carbon conversion technical field of combustion equipment more particularly to a kind of burnings of solid fuel chemistry chain Double circulation desulphurization system and sulfur method.
Background technique
Chemical chain burning technology (Chemical Looping Combustion, CLC) is that one kind has CO2Interior separation is special The New combustion technique of sign can realize CO without consuming additional energy2Separation;Meanwhile the technology meets energy cascade The utilization efficiency of energy in system can be improved in the principle utilized;In addition, the technology can inhibit NO as far as possiblexGeneration.Cause This, chemical chain burning technology is applied to the conversion process of fuel, for reducing China CO2Discharge, realizes economy, the height of fuel Effect, clean utilization are of great significance.
During the burning chemistry chains of coal, the sulphur in coal can affect to oxygen carrier or environment.This is main Be embodied in: in fuel reactor (FR), sulphur may react with oxygen carrier and generate sulfur-containing compound, to the anti-of oxygen carrier Performance and stability is answered to have an impact, and gas phase sulfurous gas (such as SOx、H2S, COS etc.) it also can be to the CO of reactor outlet2It is pure Degree has an impact, and then influences CO2Transport and seal utilization up for safekeeping;In air reactor (AR), the sulfur-bearing that is generated in oxygen carrier Compound may further with the O in air2It reacts and generates SOx, to cause damages to environment.
Current burning chemistry chains reaction unit mostly uses greatly fluidized-bed reactor, and it is appropriate to be added in fuel reactor The sorbent particle of particle size range realizes SO while burning2Removing.The pulverized-coal fired boiler Wet Flue Gas Desulfurization Technique of this and routine It compares, cost of investment and operation and maintenance cost are low.However, compared with conventional combustion technology, solid fuel in fuel reactor Response intensity it is weaker, in circulating fluid bed reactor, the residence time of solid fuel and oxygen carrier in the reactor is short, Cause unconverted carbon loss big, air reactor oxidation by air can be recycled by being mainly manifested in unconverted carbon particle, Cause the decline of carbon capture efficiency.In addition, being found through experiments that, the sulphur in coal main (about 60-95%) is in fuel reactor It is precipitated, since the residence time of desulfurizing agent is shorter, will cause the decline of desulfuration efficiency, in order to improve desulfurization effect, need Increase Ca/S molar ratio, to increase the operating cost of sweetening process.Therefore solid fuel and desulfurizing agent are improved in fuel reaction Residence time in device can significantly improve the efficiency of carbon con version of fuel, reduce Ca/S moles in operational process when fuel reaction The discharge amount of sulfur-containing compound in device.
Therefore, in order to improve the efficiency of carbon con version of solid fuel, the discharge of sulfur-containing compound is controlled, is reduced in sweetening process Operating cost is the key that burning chemistry chains process, is badly in need of a kind of being adapted to the novel de- of solid fuel chemistry chain combustion process Sulphur system and method, to realize the high-efficiency cleaning trans-utilization of solid fuel.
Summary of the invention
For the present invention according to problems of the prior art, the Two-way Cycle for proposing a kind of solid fuel chemistry chain burning is de- The efficiency of carbon con version of solid fuel can be improved in sulphur system and sulfur method, controls the discharge of sulfur-containing compound;Extend in reactor The time of gas-solid and solid affixed touching, improve the conversion ratio of carbon-based fuel;The Ca/S molar ratio in sweetening process is reduced, sulfur-bearing is reduced The discharge of gaseous compound.
The technical solution adopted in the present invention is as follows:
A kind of double circulation desulphurization system of solid fuel chemistry chain burning, including air reactor, the air reactor One end be air intake, the other end connect the first cyclone separator entrance, first cyclone separator dipleg connection Fuel reactor top, the upper end of the fuel reactor connect the entrance of the second cyclone separator, second cyclonic separation At the top of the dipleg connection separation chamber of device, the middle part of the top connection fuel reactor of the separation chamber;The bottom of the separation chamber Connect the bottom of air reactor;
Further, the separation chamber is equipped with by circulation refeed line B connection fuel reactor, the circulation refeed line B Valve;
Further, the position that circulation refeed line B is connect with fuel reactor is equipped with baffle;Particle for that will input is returned To the emulsion zone of fuel reactor lower end;
Further, the separation chamber bottom is passed through high concentration CO2Or vapor, so that separating indoor oxygen carrier, not anti- The carbon particle and desulfurizing agent answered keep fluidized state;
A kind of double circulation desulphurization method of solid fuel chemistry chain burning, including air reactor stage, fuel reactor Stage and separation chamber's stage, the air reactor stage are to be passed through enough air and oxygen carrier precursor reactant to air reactor, instead After the product answered is separated by the first cyclone separator, gaseous product discharge, solid product enters fuel reactor as raw material Stage;
Fuel reactor stage is added bunker coal, desulfurizing agent and a small amount of fresh oxygen carrier, and the product of reaction passes through the After the separation of two cyclone separators, gaseous product discharge, solid product enters separation chamber's stage as raw material;
The solid product that the fuel reactor stage generates is separately input to the air reactor stage by separation chamber's stage Recycling for raw material is realized into the work of next stage with the fuel reactor stage, effectively increases the carbon conversion of system The residence time of rate and desulfurizing agent in fuel reactor.
Further, the oxygen carrier is answering for one or more of Ni base load oxysome, Cu base load oxysome, Fe base load oxysome Close oxygen carrier;
Further, the air reactor stage solid product is oxygen carrier;
Further, the fuel reactor stage solid product be oxygen carrier, unconverted carbon particle and desulfurizing agent, it is described Oxygen carrier participates in the air reactor stage of next stage, and the unconverted carbon particle and desulfurizing agent enter the combustion of next stage Expect the reactor stage.
Beneficial effects of the present invention:
1. investment cost reduces, a kind of system complexity decline: Two-way Cycle of solid fuel chemistry chain of the present invention Desulphurization system and method are not required to increase additional tail portion humidification desulfurization system, it is only necessary to can be realized by adding desulfurizing agent in furnace Effective removing of sulfur-containing compound reduces economic investment and system complexity.
2. improving efficiency of carbon con version: a kind of double circulation desulphurization system and method for solid fuel chemistry chain of the present invention is logical The separation increased unconverted carbon particle in the separator and circulation step are crossed, improves unconverted carbon particle in fuel reactor Residence time, avoid carbon particle be directly entered air reactor and caused by carbon loss, to improve the carbon conversion of system Rate.
3. reducing Ca/S molar ratio, improve desulfuration efficiency: invention generates the Two-way Cycle system of desulfurizing agent due to increasing separation chamber System improves residence time of the desulfurizing agent in fuel reactor and the time of contact with solid fuel, hence it is evident that improve desulfurizing agent Desulfuration efficiency reduces Ca/S molar ratio, to reduce the operating cost of sweetening process.
4. reducing system operation energy consumption: for the normal operation for maintaining system, system needs to consume certain energy and keeps system The fluidisation of internal particle of uniting and the circulation of desulfurizing agent, in the present invention, desulfurizing agent is returned directly to fuel reactor from separation chamber In, effectively shorten circulating path, reduces energy loss of the desulfurizing agent in systemic circulation path process.
5. separation chamber's optimization and upgrading: separation chamber made of being improved in the present invention as dipleg not only has dipleg seal, conveying Etc. functions, and the oxygen carrier of big density and the desulfurizing agent of small density and unconverted carbon particle can be effectively separated, Loss of the unconverted carbon particle in air reactor is reduced, residence time and reduction of the desulfurizing agent in fuel reactor are improved The discharge of sulfurous gas.
Detailed description of the invention
Fig. 1 is a kind of double circulation desulphurization system structure diagram of solid fuel chemistry chain of the present invention;
In figure, 1, air distribution plate A, 2, circulation refeed line A, 3, separation chamber, 4, air reactor, the 5, second cyclone separator material Leg, the 6, second cyclone separator, 7, delivery pipe A, 8, delivery pipe B, 9, valve, the 10, first cyclone separator, the 11, first whirlwind Separator dipleg, 12, fuel reactor, 13, circulation refeed line B, 14, baffle, 15, screw(-type) feeder, 16, unconverted carbon Grain and desulfurizing agent, 17, oxygen carrier, 18, air distribution plate B, 19, blow-off valve, A, the first air intake, B, the outlet of high temperature oxygen denuded air, C, gasifying medium entrance, D, feed inlet, E, carbon dioxide and steam entry, F, carbon dioxide and vapor exhaust outlet, G, height Concentration C O2Or steam entry, H, waste outlet.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, not For limiting the present invention.
As shown in Figure 1, a kind of double circulation desulphurization system of solid fuel chemistry chain burning designed by the present invention, including sky Solid/liquid/gas reactions device 4,4 lower end of air reactor are equipped with air intlet A, air distribution plate 1 are equipped in reactor, and 4 upper end of air reactor is logical Delivery pipe A7 is crossed to be connected with the first cyclone separator 10,10 upper end of the first cyclone separator be high temperature oxygen denuded air export B, first 11 lower section gasifying medium entrance C of cyclone dip-leg, the first cyclone separator 10 pass through dipleg 11 and 12 phase of fuel reactor Even, it is equipped with screw(-type) feeder 15 in the side of fuel reactor 12,12 upper end of fuel reactor passes through the rotation of delivery pipe B8 and second 6 entrance of wind separator is connected, and 12 bottom of fuel reactor is equipped with waste outlet H and carbon dioxide and steam entry E, in waste material It exports H and is equipped with blow-off valve 19;Second cyclone separator, 6 lower end dipleg 5 is connected with separation chamber 3, and 3 left end of separation chamber passes through circulation Refeed line A2 connection air reactor 4, by circulation refeed line B13 connection fuel reactor 12,3 bottom of separation chamber is set at right end end There is high concentration CO2Or steam entry G, circulation refeed line B13 are equipped with valve 9, circulation refeed line B13 and fuel reactor 12 The position of connection is equipped with baffle 14;For the particle of input to be returned to the emulsion zone of 12 lower end of fuel reactor, fuel reaction 12 bottom of device is equipped with waste outlet, adjusts blow-off valve 19 the oxygen carrier of solid sulfur-containing compound and failure is discharged.
First cyclone separator, 10 top is equipped with oxygen denuded air exhaust outlet B;Second cyclone separator, 6 top is equipped with two Carbonoxide and vapor exhaust outlet F.First cyclone separator, 10 lower end dipleg, 11 lower end and 3 lower end of separation chamber are equipped with carbon dioxide Or steam entry, keep the fluidized state of solid.
Based on a kind of double circulation desulphurization system of the burning of solid fuel chemistry chain designed by the present invention, the present invention is also proposed A kind of double circulation desulphurization method of solid fuel chemistry chain burning, including the air reactor stage, fuel reactor stage and In separation chamber's stage, detailed process is as follows:
The air reactor stage: air intake A is passed through enough air and reacts with oxygen carrier 17;The oxygen deprivation generated after reaction is empty Gas enters primary cyclone 10 by delivery pipe A7 with oxygen carrier 17 and separates, and high temperature oxygen denuded air is discharged from top B, oxygen carrier Body 17 is entered in fuel reactor 12 by lower section primary separator dipleg 11;And 11 lower section gasifying medium entrance C of dipleg continues Being passed through fluidizing gas allows solid particle can smoothly enter into fuel reactor 12;Wherein, the reaction occurred in air reactor Mainly are as follows: 2MexOy-1+O2=2MexOy
The fuel reactor stage: being added bunker coal, desulfurizing agent and a small amount of fresh oxygen carrier from the screw(-type) feeder 15, Gasify under the conditions of coal is existing for the gasifying medium, the synthesis gas after gasification reacts with oxygen carrier 17, generates CO2With H2O, the temperature of reaction are 750~950 DEG C, and desulfurizing agent 16 absorbs the sulfurous gas (SO in flue gas in fuel reactor 122、 H2S and COS etc.), the oxygen carrier, unconverted carbon particle and desulfurizing agent after reaction are (comprising reacted and unreacted de- Sulphur agent) the second cyclone separator 6 is carried along by flue gas, gas solid separation is carried out, the carbon dioxide and vapor in flue gas are from two Carbonoxide and vapor exhaust outlet F discharge, can capture the higher carbon dioxide of purity here;Additionally by control blow-off valve 19 discharge waste materials;Wherein, the reaction occurred in fuel reactor is main are as follows:
C+H2O=CO+H2
MexOy+ CO=MexOy-1+CO2
MexOy+H2=MexOy-1+H2O;
CaO+SO2=CaSO3
CaO+H2S=CaS+H2O;
CaO+COS+H2O=CaS+H2O+CO2
Separation chamber's stage: the flue gas that the fuel reactor stage generates is after the separation of secondary cyclone 6, oxygen carrier, not The carbon particle and desulfurizing agent (including reacted and unreacted desulfurizing agent) of conversion enter separation chamber 3, lower section high concentration CO2 Or steam entry G is passed through high concentration CO2Or vapor make solid particle keep fluidized state, due to solid particle density not Together, 17 density of oxygen carrier is larger, is gathered in lower part, under being entered by the direct returning air reactor 4 of circulation refeed line A2 One wheel reaction, the small unreacted carbon particle of density and desulfurizing agent 16 are in 3 top of separation chamber, can be by recycling refeed line B13 returns to fuel reactor 12, can control the desulfurization in fuel reactor by 9 aperture of valve of control loop refeed line 13 Ca/S molar ratio in efficiency and system.
Illinois coal is applied in the present invention as carbon-based fuel, iron ore as oxygen carrier, the wherein industry of coal Analysis and Elemental analysis data are as shown in table 1, and the component analysis of iron ore is as shown in table 2.
The Industrial Analysis and elemental analysis of 1 Illinois coal of table
The component analysis table of 2 iron ore of table
In this example, the reaction temperature in air reactor 4 is 950 DEG C, and the temperature of fuel reactor is 900 DEG C.Fuel It is contacted using iron ore with coke in reactor, it is small that the present invention is recycled into unconverted carbon content loss in air reactor 4 In 10%, (phosphorus content in fuel reactor exit gas and entered in the carbon-based fuel of device according to efficiency of carbon con version formula Carbon content ratio) to can be calculated the efficiency of carbon con version of carbon-based fuel in the present invention be more than 90%, realize effective trapping of carbon;And it is traditional Fluidized beds combustion reactor efficiency of carbon con version it is lower, about 50-80%;Although referring to carbon-based fuel chemical chain in current document Efficiency of carbon con version is more than 90% in combustion process, but its so-called efficiency of carbon con version is that fuel reactor contains with air reactor outlet The ratio for the carbon that carbon contained in carbon gas and system enter, and the efficiency of carbon con version in this patent only refers to fuel reactor outlet Carbon in carbonaceous gas is calculated with the ratio into the carbon content in the carbon-based fuel of system, and computing object is only for fuel Reactor 12, be not included in air reactor 4 outlet in carbonaceous gas in include carbon.Ca/S is kept in traditional fluidized bed When > 2, desulfuration efficiency is 60%~80%, and in the present invention, when the Ca/S molar ratio in fuel reactor is 1.5, desulfurization Efficiency has reached 80% or more, and compared to traditional fluid unit, the system and method for double circulation desulphurization of the invention is dropping Desulfuration efficiency is improved in the case where low Ca/S molar ratio.
Above embodiments are merely to illustrate design philosophy and feature of the invention, and its object is to make technology in the art Personnel can understand the content of the present invention and implement it accordingly, and protection scope of the present invention is not limited to the above embodiments.So it is all according to It is within the scope of the present invention according to equivalent variations made by disclosed principle, mentality of designing or modification.

Claims (8)

1. a kind of double circulation desulphurization system of solid fuel chemistry chain burning, which is characterized in that including air reactor (4), institute The one end for stating air reactor (4) is air intake, and the other end connects the entrance of the first cyclone separator (10), first rotation The dipleg of wind separator (10) connects fuel reactor (12), and the upper end of the fuel reactor (12) connects the second cyclonic separation The entrance of device (6), dipleg connection separation chamber (3) top of second cyclone separator (6), the top of the separation chamber (3) Connect the middle part of fuel reactor (12);The bottom of bottom connection air reactor (4) of the separation chamber (3).
2. a kind of double circulation desulphurization system of solid fuel chemistry chain burning according to claim 1, which is characterized in that institute Separation chamber (3) are stated by circulation refeed line B (13) connection fuel reactor (12), the circulation refeed line B (13) is equipped with valve Door (9).
3. a kind of double circulation desulphurization system of solid fuel chemistry chain burning according to claim 2, which is characterized in that follow The position that ring refeed line B (13) is connect with fuel reactor (12) is equipped with baffle (14), for the particle of input to be returned to combustion Expect the emulsion zone of reactor (12) lower end.
4. a kind of double circulation desulphurization system of solid fuel chemistry chain burning according to claim 1 or 2, feature exist In separation chamber (3) bottom is passed through high concentration CO2Or vapor, so that oxygen carrier, unreacted carbon in separation chamber (3) Particle and desulfurizing agent (16) keep fluidized state.
5. a kind of double circulation desulphurization side of the double circulation desulphurization system based on solid fuel chemistry chain described in claim 1 burning Method, which is characterized in that including air reactor stage, fuel reactor stage and separation chamber's stage, the air reactor rank Duan Weixiang air reactor (4) is passed through enough air and reacts with oxygen carrier (17), and the product of reaction passes through the first cyclone separator (10) after separating, gaseous product discharge, solid product enters the fuel reactor stage as raw material;
Bunker coal, desulfurizing agent and a small amount of fresh oxygen carrier is added in the fuel reactor stage, and the product of reaction passes through the second rotation After wind separator (6) separation, gaseous product discharge, solid product enters separation chamber's stage as raw material;
The solid product that the fuel reactor stage generates is separately input to air reactor stage and combustion by separation chamber's stage Expect that the reactor stage into the work of next stage realizes recycling for raw material, effectively increase system efficiency of carbon con version and Residence time of the desulfurizing agent in fuel reactor.
6. a kind of double circulation desulphurization method of solid fuel chemistry chain burning according to claim 5, which is characterized in that institute State the composite oxygen carrier that oxygen carrier (17) are one or more of Ni base load oxysome, Cu base load oxysome, Fe base load oxysome.
7. a kind of double circulation desulphurization method of solid fuel chemistry chain burning according to claim 5, which is characterized in that institute The solid product for stating the air reactor stage is oxygen carrier (17).
8. a kind of double circulation desulphurization method of solid fuel chemistry chain burning according to claim 5, which is characterized in that institute The solid product for stating the fuel reactor stage is oxygen carrier (17), unconverted carbon particle and desulfurizing agent (16), the oxygen carrier (17) the air reactor stage of next stage is participated in, the unconverted carbon particle and desulfurizing agent (16) enter next stage The fuel reactor stage.
CN201910308346.0A 2019-04-17 2019-04-17 A kind of the double circulation desulphurization system and sulfur method of the burning of solid fuel chemistry chain Pending CN110115878A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104804478A (en) * 2015-03-26 2015-07-29 青岛大学 Method for preparing carbon black through coal tar chemical chain pyrolysis
CN204554798U (en) * 2015-04-03 2015-08-12 东方电气集团东方锅炉股份有限公司 A kind of CFBB oxygen-enriched combusting dry method desulfuration system
CN104848207A (en) * 2015-04-07 2015-08-19 东南大学 Chemical looping combustion device for solid fuel grading oxidation and method thereof
CN106247323A (en) * 2016-09-14 2016-12-21 东南大学 A kind of chemical chain combustion apparatus based on tower bubbling fluidized bed fuel reactor and method thereof
US20170313947A1 (en) * 2014-10-09 2017-11-02 Saudi Arabian Oil Company Integrated Heavy Liquid Fuel Coking With Chemical Looping Concept

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170313947A1 (en) * 2014-10-09 2017-11-02 Saudi Arabian Oil Company Integrated Heavy Liquid Fuel Coking With Chemical Looping Concept
CN104804478A (en) * 2015-03-26 2015-07-29 青岛大学 Method for preparing carbon black through coal tar chemical chain pyrolysis
CN204554798U (en) * 2015-04-03 2015-08-12 东方电气集团东方锅炉股份有限公司 A kind of CFBB oxygen-enriched combusting dry method desulfuration system
CN104848207A (en) * 2015-04-07 2015-08-19 东南大学 Chemical looping combustion device for solid fuel grading oxidation and method thereof
CN106247323A (en) * 2016-09-14 2016-12-21 东南大学 A kind of chemical chain combustion apparatus based on tower bubbling fluidized bed fuel reactor and method thereof

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Application publication date: 20190813