CN108889251B - Entrained-flow bed device and method for humidifying and mineralizing carbon dioxide - Google Patents
Entrained-flow bed device and method for humidifying and mineralizing carbon dioxide Download PDFInfo
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- CN108889251B CN108889251B CN201810950524.5A CN201810950524A CN108889251B CN 108889251 B CN108889251 B CN 108889251B CN 201810950524 A CN201810950524 A CN 201810950524A CN 108889251 B CN108889251 B CN 108889251B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1818—Feeding of the fluidising gas
- B01J8/1827—Feeding of the fluidising gas the fluidising gas being a reactant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/83—Solid phase processes with moving reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/002—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor with a moving instrument
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
- B01J8/006—Separating solid material from the gas/liquid stream by filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1872—Details of the fluidised bed reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00654—Controlling the process by measures relating to the particulate material
- B01J2208/00699—Moisture content regulation
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Abstract
The invention discloses a entrained-flow bed device and a method for humidifying and mineralizing carbon dioxide, wherein the device comprises a feeding unit, an air inlet unit, a reaction unit and a separation and circulation unit, wherein: the feeding unit comprises a raw material humidifier, a dryer, a first screw feeder and a second screw feeder; the air inlet unit comprises a gas mixer; the reaction unit comprises an entrained flow reactor and a plurality of humidifying nozzles arranged in the furnace on the entrained flow reactor; the separation and circulation unit comprises a bag-type dust remover and an induced draft fan; humidification, mineralization and CO removal are carried out by combining raw material pretreatment, flue gas humidification and internal spraying of a reactor 2 The efficiency is improved, the reaction contact efficiency is improved by adopting the entrained-flow reactor, and the device and the method not only can effectively improve the utilization of wastes, but also can reduce the CO of a power plant 2 The emission is a novel greenhouse gas emission reduction technology which is very suitable for the national conditions of China.
Description
Technical Field
The invention relates to a device and a method for capturing carbon dioxide in mineralized flue gas, in particular to an entrained flow device and a method for humidifying and mineralizing carbon dioxide.
Background
International energy agency reports suggesting CO 2 Capture and Sequestration (CCS) technology is an effective control of CO 2 One of three technologies of emission is counted by 2050 in United nationsGlobal CO 2 Blueprints with concentration control at 450ppm provide 19% contribution and are predicted to build 3400 CCS projects into 58100 billion dollars CO worldwide by 2050 2 Industry. For the last twenty years, governments around the world strive to subsidize CCS technology research, build research and development centers and demonstration projects with universities and enterprises, and preempt development of technical patents to take the market place.
CO 2 Mineralization technology is a new research hotspot in CCS technology for the last decade. CO by mineralization 2 The removal has the following advantages:
1) The resource reserves are large in scale, and the reserves of the mineralized magnesium (calcium) silicate ores (mainly serpentine and olivine) which can be suitable for mineralization are more than 30000Gt and more than the total amount of the known fossil energy sources; industrial bulk solid wastes (such as power plant wastes, steel mill residues, cement mill residues and mining mill tailings) can be used as raw materials, so that win-win effect of waste utilization and environmental protection is realized;
2) The carbon dioxide is permanently and environmentally-friendly sealed to realize no-leakage and no-later-period monitoring, and compared with geological sealing, the risk is reduced and is easily accepted by the public;
3) The carbonation reaction is exothermic, which can theoretically reduce the demand for heat;
4) The method has good applicability to some countries and regions where proper geological storage stratum cannot be found or pollution sources with high cost due to too far pipeline transportation;
5) Various products with economic value are produced in the carbonization process, the cost of carbon dioxide treatment can be subsidized, and the carbonization process has the potential to create higher economic benefits to form an industrial chain.
For our country CO 2 Mineralization technology has important value. China is suitable for CO 2 Mineralized serpentine and olivine have huge reserves, and the total sealing capacity can reach 13000Gt CO 2 Left and right.
The existing device for mineralizing carbon dioxide needs to achieve the following aims:
1) Reduces the energy consumption required by pretreatment and reaction, and develops a new pretreatment device. Such as reducing the temperature and pressure conditions required for the reaction, larger particle size ores are used. Due to the characteristics of ores, different ores are suitable for different pretreatment technologies and need to be treated differently.
2) The reaction rate is quickened, and the reaction time is shortened. The reaction time of 2-6 hours is reduced to 30-60min. There is a need to develop chemical agents with higher ore leaching rates and enhanced carbonic acid efficiency.
3) The renewable chemical agent is used, so that the environment friendliness is realized and the cost is reduced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an entrained flow device and a method for humidifying and mineralizing carbon dioxide, which are used for improving, mineralizing and removing CO by means of raw material pretreatment, flue gas humidification and reactor internal spraying and wetting combination 2 The efficiency is improved, the reaction contact efficiency is improved by adopting the entrained-flow reactor, and the device and the method not only can effectively improve the utilization of wastes, but also can reduce the CO of a power plant 2 The emission is a novel greenhouse gas emission reduction technology which is very suitable for the national conditions of China.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the entrained flow device for humidifying and mineralizing carbon dioxide comprises a feeding unit, an air inlet unit, a reaction unit and a separation and circulation unit, wherein: the feeding unit comprises a raw material humidifier 1, a dryer 2, a first screw feeder 3 and a second screw feeder 4; the air inlet unit comprises a gas mixer 5; the reaction unit comprises an entrained flow reactor 6 and a plurality of humidifying nozzles arranged in the entrained flow reactor 6; the separation and circulation unit comprises a bag-type dust remover 10 and an induced draft fan 11;
the specific connection relation is as follows: the outlet of the raw material humidifier 1 is connected with the inlet at the upper end of the dryer 2, the outlet at the lower end of the dryer 2 is communicated with the inlet of the first screw feeder 3, and the outlet of the first screw feeder 3 is communicated with the inlet of the venturi tube at the bottom of the entrained-flow reactor 6; CO not removed 2 The flue gas 12 is communicated with the inlet at the upper end of the gas mixer 5, the outlet of the water quantitative pump 14 is communicated with the inlet at the lower end of the gas mixer 5, the outlet at the upper end of the gas mixer 5 is communicated with the inlet of the entrained-flow bed reactor 6, namely the venturi tube at the top, and the humidified flue gas is dischargedThe gas is carried into the entrained flow reactor 6 for mineralization reaction; the outlet of the water quantitative pump 15 is communicated with a plurality of in-furnace humidifying nozzles (the embodiment comprises three in-furnace humidifying nozzles 7, 8 and 9) arranged on the entrained-flow reactor 6, and water is sprayed into the entrained-flow reactor 6 to improve mineralization reaction and remove CO 2 Efficiency is improved; the outlet of the lower end of the entrained-flow bed reaction 6 is communicated with the right inlet of the bag-type dust remover 10, the solid outlet of the lower end of the bag-type dust remover 10 is communicated with the inlet of the second screw feeder 4, the outlet of the second screw feeder 4 is communicated with the venturi inlet at the bottom of the entrained-flow bed reactor 6, and the solid raw material separated from the bag-type dust remover 10 is returned to the entrained-flow bed reactor 6; the gas outlet at the upper end of the bag-type dust collector 10 is communicated with an induced draft fan 11, and the outlet of the induced draft fan 11 is communicated with the atmosphere to remove CO 2 And the rear flue gas 13 is discharged.
The method for humidifying and mineralizing the carbon dioxide by using the entrained flow device comprises the following steps:
firstly, raw material pretreatment: the fresh raw materials are humidified by a raw material humidifier 1 and then enter a dryer 2 for drying pretreatment;
and a second step of: the raw materials enter a reactor: the pretreated raw materials are conveyed into a wind main pipe through a first screw feeder 3 and carried by wind into an entrained flow reactor 6;
thirdly, the flue gas is wet: the water vapor for wetting is passed through the water metering pump 14 and is not removed with CO 2 The flue gas 12 is injected into the gas mixer 5 together, and the moisture distribution amount is regulated by changing the flow of the water quantitative pump 14;
fourth, the flue gas enters a reactor: the wet flue gas from the gas mixer 5 and the venturi tube at the top of the entrained flow reactor 6 enter the entrained flow reactor 6;
fifthly, humidifying and mineralizing reaction: the raw material fed into the entrained-flow reactor 6 from the second step and the flue gas fed into the entrained-flow reactor 6 from the fourth step are subjected to mineralization reaction to remove CO in the flue gas 2 The water from the water quantitative pump 15 enters the entrained-flow reactor 6 through a plurality of humidifying nozzles arranged in the furnace on the entrained-flow reactor 6, so that the flue gas and the raw materials are rapidly fluidized and reacted, and the amount of moisture is distributed in the entrained-flow reactor 6 in the mineralization reactionBy varying the water dosing pump 15 flow;
sixth, gas-solid separation: CO removal at the top of entrained flow reactor 6 2 The temperature of the back flue gas 13 and the reacted raw materials is reduced, and then the raw materials enter a bag-type dust remover 10 for gas-solid separation;
seventh, discharging the smoke: CO removal after gas-solid separation 2 The rear flue gas 13 is led out of the room through a draught fan 11;
eighth step, solid returning charge: the solid raw materials after gas-solid separation fall down and are collected in a bag-type dust collector 10, and the solid raw materials are returned to the entrained-flow bed reactor 6 through a second screw feeder 4 to continue the reaction.
Compared with the prior art, the invention has the following beneficial technical effects:
the raw material pretreatment material is used for reducing the temperature condition required by carbonation reaction, and a liquid film can be formed on the surface of the raw material by adjusting humidity so as to improve CO 2 Adsorption rate; the pore structure of the absorbent is activated by adopting water vapor through flue gas wetting and spouting wetting in the entrained flow reactor, so that the mineralization rate is accelerated; addition of water vapor to enhance CO 2 The mobility of the molecules on the surface and in the adsorbent is favorable for the solid diffusion process, so that the mass transfer of the gas-solid phase reaction is further increased, the reaction rate is improved, and the reaction time is shortened. The entrained flow reactor is used for improving the reaction contact time and strengthening CO in the gas-solid phase reaction 2 Probability of contact with the active ingredient.
Drawings
FIG. 1 is a schematic diagram of an entrained flow device for humidifying and mineralizing carbon dioxide according to the invention.
Detailed Description
The patent of the invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, the entrained flow device for humidifying and mineralizing carbon dioxide comprises a feeding unit, an air inlet unit, a reaction unit and a separation and circulation unit, wherein: the feeding unit comprises a raw material humidifier 1, a dryer 2, a first screw feeder 3 and a second screw feeder 4; the air inlet unit comprises a gas mixer 5; the reaction unit comprises an entrained flow reactor 6 and a plurality of humidifying nozzles arranged in the entrained flow reactor 6; the separation and circulation unit comprises a bag-type dust remover 10 and an induced draft fan 11;
the specific connection relation is as follows: the outlet of the raw material humidifier 1 is connected with the inlet at the upper end of the dryer 2, the outlet at the lower end of the dryer 2 is communicated with the inlet of the first screw feeder 3, and the outlet of the first screw feeder 3 is communicated with the inlet of the venturi tube at the bottom of the entrained-flow reactor 6; CO not removed 2 The flue gas 12 is communicated with an inlet at the upper end of the gas mixer 5, an outlet of the water quantitative pump 14 is communicated with an inlet at the lower end of the gas mixer 5, an outlet at the upper end of the gas mixer 5 is communicated with an inlet of the entrained-flow reactor 6, namely a venturi tube at the top, and the humidified flue gas is brought into the entrained-flow reactor 6 for mineralization reaction; the outlet of the water quantitative pump 15 is communicated with a plurality of humidifying nozzles arranged in the furnace on the entrained-flow reactor 6, and water is sprayed into the entrained-flow reactor 6 to improve mineralization reaction and remove CO 2 Efficiency is improved; the outlet of the lower end of the entrained-flow bed reaction 6 is communicated with the right inlet of the bag-type dust remover 10, the solid outlet of the lower end of the bag-type dust remover 10 is communicated with the inlet of the second screw feeder 4, the outlet of the second screw feeder 4 is communicated with the venturi inlet at the bottom of the entrained-flow bed reactor 6, and the solid raw material separated from the bag-type dust remover 10 is returned to the entrained-flow bed reactor 6; the gas outlet at the upper end of the bag-type dust collector 10 is communicated with an induced draft fan 11, and the outlet of the induced draft fan 11 is communicated with the atmosphere to remove CO 2 And the rear flue gas 13 is discharged.
The invention relates to a method for humidifying and mineralizing carbon dioxide by using a carbon dioxide humidifying and mineralizing entrained flow bed device, which comprises the following steps:
firstly, raw material pretreatment: the fresh raw materials are humidified by a raw material humidifier 1 and then enter a dryer 2 for drying pretreatment;
and a second step of: the raw materials enter a reactor: the pretreated raw materials are conveyed into a wind main pipe through a first screw feeder 3 and carried by wind into an entrained flow reactor 6;
thirdly, the flue gas is wet: the water vapor for wetting is passed through the water metering pump 14 and is not removed with CO 2 The flue gas 12 is injected into the gas mixer 5 together, and the moisture distribution amount is regulated by changing the flow of the water quantitative pump 14;
fourth, the flue gas enters a reactor: the wet flue gas from the gas mixer 5 and the venturi tube at the top of the entrained flow reactor 6 enter the entrained flow reactor 6;
fifthly, humidifying and mineralizing reaction: the raw material fed into the entrained-flow reactor 6 from the second step and the flue gas fed into the entrained-flow reactor 6 from the fourth step are subjected to mineralization reaction to remove CO in the flue gas 2 The water from the water quantitative pump 15 enters the entrained-flow reactor 6 through a plurality of humidifying nozzles arranged in the furnace on the entrained-flow reactor 6, so that the flue gas and raw materials are rapidly fluidized and reacted, and the amount of humidity in the entrained-flow reactor 6 in mineralization is regulated by changing the flow of the water quantitative pump 15;
sixth, gas-solid separation: CO removal at the top of entrained flow reactor 6 2 The temperature of the back flue gas 13 and the reacted raw materials is reduced, and then the raw materials enter a bag-type dust remover 10 for gas-solid separation;
seventh, discharging the smoke: CO removal after gas-solid separation 2 The rear flue gas 13 is led out of the room through a draught fan 11;
eighth step, solid returning charge: the solid raw materials after gas-solid separation fall down and are collected in a bag-type dust collector 10, and the solid raw materials are returned to the entrained-flow bed reactor 6 through a second screw feeder 4 to continue the reaction.
Claims (1)
1. A method for humidifying and mineralizing carbon dioxide by a entrained flow device for humidifying and mineralizing carbon dioxide, which is characterized by comprising the following steps: the device comprises a feeding unit, an air inlet unit, a reaction unit and a separation and circulation unit, wherein: the feeding unit comprises a raw material humidifier (1), a dryer (2), a first screw feeder (3) and a second screw feeder (4); the air inlet unit comprises a gas mixer (5); the reaction unit comprises an entrained flow reactor (6) and a plurality of humidifying nozzles arranged in the entrained flow reactor (6); the separation and circulation unit comprises a bag-type dust remover (10) and an induced draft fan (11);
the specific connection relation is as follows: the outlet of the raw material humidifier (1) is connected with the inlet at the upper end of the dryer (2), the outlet at the lower end of the dryer (2) is communicated with the inlet of the first screw feeder (3), and the outlet of the first screw feeder (3) is communicated with the inlet of the venturi tube at the bottom of the entrained-flow reactor (6)Communicating; CO not removed 2 The flue gas (12) is communicated with an inlet at the upper end of the gas mixer (5), an outlet of the first water dosing pump (14) is communicated with an inlet at the lower end of the gas mixer (5), an outlet at the upper end of the gas mixer (5) is communicated with an inlet of the entrained-flow bed reactor (6), namely a venturi tube at the top, and the humidified flue gas is brought into the entrained-flow bed reactor (6) for mineralization reaction; the outlet of the second water quantitative pump (15) is communicated with a plurality of humidifying nozzles arranged in the furnace on the entrained-flow reactor (6), and water is sprayed into the entrained-flow reactor (6) to improve mineralization reaction and remove CO 2 Efficiency is improved; the outlet of the lower end of the entrained-flow bed reactor (6) is communicated with the right inlet of the bag-type dust remover (10), the solid outlet of the lower end of the bag-type dust remover (10) is communicated with the inlet of a second screw feeder (4), the outlet of the second screw feeder (4) is communicated with the inlet of a venturi tube at the bottom of the entrained-flow bed reactor (6), and the solid raw material separated from the bag-type dust remover (10) is returned to the entrained-flow bed reactor (6); the gas outlet at the upper end of the bag-type dust collector (10) is communicated with an induced draft fan (11), the outlet of the induced draft fan (11) is communicated with the atmosphere, and CO is removed 2 The rear flue gas (13) is exhausted;
the method for carrying out carbon dioxide humidification and mineralization comprises the following steps:
firstly, raw material pretreatment: the fresh raw materials are humidified by a raw material humidifier (1) and then enter a dryer (2) for drying pretreatment;
and a second step of: the raw materials enter a reactor: the pretreated raw materials are conveyed into a wind header pipe through a first screw feeder (3) and carried by wind into an entrained flow reactor (6);
thirdly, the flue gas is wet: the water vapor for wetting is passed through a first water metering pump (14) and is not removed with CO 2 The flue gas (12) is injected into the gas mixer (5) together, and the moisture distribution amount is regulated by changing the flow of the first water constant displacement pump (14);
fourth, the flue gas enters a reactor: the wet flue gas from the gas mixer (5) and the venturi tube at the top of the entrained flow reactor (6) enter the entrained flow reactor (6);
fifthly, humidifying and mineralizing reaction: the raw material fed into the entrained-flow reactor (6) from the second step and the flue gas fed into the entrained-flow reactor (6) from the fourth step are mineralized and reflectedCO in the flue gas should be removed 2 The water from the second water quantitative pump (15) enters the entrained-flow reactor (6) through a plurality of in-furnace humidifying nozzles arranged on the entrained-flow reactor (6), so that the flue gas and raw materials are rapidly fluidized and reacted, and the amount of moisture distribution in the entrained-flow reactor (6) in mineralization is regulated by changing the flow of the second water quantitative pump (15);
sixth, gas-solid separation: CO removal at the top of entrained flow reactor (6) 2 The temperature of the rear flue gas (13) and the reacted raw materials is reduced, and then the raw materials enter a bag-type dust remover (10) for gas-solid separation;
seventh, discharging the smoke: CO removal after gas-solid separation 2 The rear flue gas (13) is led out of the room through a draught fan (11);
eighth step, solid returning charge: the solid raw materials after gas-solid separation fall down and are collected into a cloth bag dust collector (10), and the solid raw materials are returned into an entrained flow reactor (6) through a second screw feeder (4) to continue the reaction.
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| CN101596397A (en) * | 2009-07-07 | 2009-12-09 | 华中科技大学 | The direct mineralising partition method of non-separating carbon dioxide from smoke |
| EP2412425A1 (en) * | 2010-07-30 | 2012-02-01 | General Electric Company | Carbon dioxide capture system and method of capturing carbon dioxide |
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| CN103349903A (en) * | 2013-06-09 | 2013-10-16 | 天津大学 | Flue gas semidry desulfurization method and device |
| CN103861446A (en) * | 2014-03-31 | 2014-06-18 | 四川大学 | Three-phase fluidization mineralization method for smoke CO2 and phosphogypsum serous membranes |
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| CN206454491U (en) * | 2017-02-14 | 2017-09-01 | 河钢股份有限公司 | A kind of utilization blast furnace slag fixes carbon dioxide and reclaims the device of sensible heat |
| CN206965503U (en) * | 2017-04-11 | 2018-02-06 | 山西大学 | A kind of carbon dioxide mineralising reaction device |
| CN209076652U (en) * | 2018-08-20 | 2019-07-09 | 中国华能集团有限公司 | A kind of air-flow bed apparatus of carbon dioxide humidification mineralising |
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