CN102225760A - Coal combustion CO2 capturing method and device based on metal oxide-CaCO3 absorbent - Google Patents

Coal combustion CO2 capturing method and device based on metal oxide-CaCO3 absorbent Download PDF

Info

Publication number
CN102225760A
CN102225760A CN2011100694127A CN201110069412A CN102225760A CN 102225760 A CN102225760 A CN 102225760A CN 2011100694127 A CN2011100694127 A CN 2011100694127A CN 201110069412 A CN201110069412 A CN 201110069412A CN 102225760 A CN102225760 A CN 102225760A
Authority
CN
China
Prior art keywords
metal oxide
cao
coal
caco
reaction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011100694127A
Other languages
Chinese (zh)
Inventor
王保文
高传昌
王为术
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North China University of Water Resources and Electric Power
Original Assignee
North China University of Water Resources and Electric Power
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by North China University of Water Resources and Electric Power filed Critical North China University of Water Resources and Electric Power
Priority to CN2011100694127A priority Critical patent/CN102225760A/en
Publication of CN102225760A publication Critical patent/CN102225760A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • 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
    • 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
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Landscapes

  • Treating Waste Gases (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The invention provides a coal combustion CO2 capturing method and a device based on a metal oxide-CaCO3 absorbent. The method provided by the invention is performed by firstly reacting a metal oxide and coal powder to generate high-concentration CO2 and using CaCO3 calcination product namely CaO as the CO2 absorbent. The method not only promotes the sufficient conversion of coal, but also realizes online activation of CaO by the reaction of CaO and steam, and maintains the stable absorption capacity of CaO to CO2 during multi-time circular reactions.

Description

Based on metal oxide-CaCO 3The coal combustion CO of absorption agent 2Catching method and device
Technical field
The present invention relates to CO in the coal combustion field, particularly coal combustion process 2Catching method and device.
Background technology
Control and minimizing coal combustion process CO 2Discharging, have important effect for reply Global warming and Greenhouse effect.Particularly for China, in view of the characteristics of its energy structure based on coal, CO 2Emission level sharply increases and has occupy the present situation of No. 1 in the world, the current CO that faces of China 2Reducing discharging pressure increases day by day, develops coal-fired efficiently CO 2Isolation technique realizes CO 2The reduction of discharging target, have important social meaning and economic worth.
Coal-fired CO 2The core that reduces discharging is to reclaim the CO that obtains high density 2At all kinds of coal-fired CO 2In the emission-reduction technology, with Wingdale as CO 2The absorption process of absorption agent, its major advantage are to have certain technology handiness, can be directly used in CO in the coal-fired tail flue gas 2Catch separation; Absorptive capacity is big, even the CaO transformation efficiency has only 50%, every Kg CaO is to CO 2Absorptive capacity also can reach 393g; Simultaneously, CaCO 3After the calcination and regeneration, can obtain high-purity CO near 100% 2Gas.But, when coal and air directly burn, produce a large amount of coal combustion tail flue gas, because inertia N in the air 2Doping dilution, CO in the tail flue gas 2Volume share is lower, is no more than 20%, low excessively CO 2The gas share causes the transforming degree of CaO greatly to reduce; And in repeatedly limestone calcination and CaO carbonation reaction process, along with the circulating reaction number of times increases, the reactive decay fast of CaO, CO 2Absorptive capacity constantly reduces.Therefore, improve CO in the coal combustion reaction end gas 2Concentration, promote CaO and CO 2The carbonating transforming degree, and suppress repeatedly the reactive decay of CaO in the circulating reaction process, for coal combustion CO 2Catch, extremely important.
Summary of the invention
The invention provides a kind of coal dust firing CO 2Catching method and device at first utilize the reaction of metal oxide and coal dust to produce high concentration CO 2, utilize Wingdale again as CO 2Absorption agent, not only promote the abundant conversion of coal, and by the online activation of the reaction of CaO and water vapour CaO, in circulating reaction repeatedly, make CaO to CO 2It is stable that absorptive capacity keeps.
Based on metal oxide-CaCO 3The coal combustion CO of absorption agent 2Catching method is specially:
(1) carry out coal dust gasification and metal oxide simultaneously and decompose, gasification product and metal oxide and this metal oxide decompose the more lower valency reactive metal oxide that is produced, and generate CO 2, water vapour, CO, H 2And metal, metal oxide decomposes the O that produces 2With the CO, the H that generate 2Carry out oxidizing reaction, generate CO 2And water vapour;
(2) CO of CaO absorption step (1) generation 2Generate CaCO with water vapour 3And Ca (OH) 2, Ca (OH) 2Further absorb CO 2Generate CaCO 3
(3) CaCO 3Decompose and produce pure CO 2Gas.
Further, metal and the atmospheric oxidation that also described step (1) is generated is regenerated as metal oxide.
Further, the CaO in the described step (2) derives from step (3) CaCO 3Calcining and decomposing.
Further, described metal oxide is CuO, CuFe 2O 4, MnFe 2O 4, CoFe 2O 4In any one.
Realize the device of aforesaid method, comprise the two-part bubbling fluidized bed 1, grit separator 2, the CaCO that join successively 3Separator 3, fast fluidized bed 4, first cyclonic separator 5, first seal valve 6, fast fluidized bed 7, second cyclonic separator 8, second seal valve 9 and two-part bubbling fluidized bed 1, bubbling fluidized bed 1 also is connected with coal fly ash trap 11 with the 3rd cyclonic separator 10 respectively.
Technique effect of the present invention is embodied in:
1. be fuel with coal or other carbonaceous fuel (comprising biomass, mud etc.), Wingdale is as the main ingredient of carrier, and reserves are big, the source is wide, price is low;
With metal oxide-Wingdale as complex carrier, be used for the coal combustion high concentration CO 2Catch the aspect, its reactivity is fully utilized.Theoretical foundation is as follows:
The molecular formula of supposing carbonaceous fuels such as coal is reduced to C, and Wingdale is with main ingredient CaCO wherein 3Expression, metal oxide is chosen CuO, in fuel reaction device 1, carbonaceous fuel and CuO-Wingdale complex carrier generation complex series of reactions such as coal, specific as follows:
At first, in the lower end of fuel reaction device 1, at water vapour or CO 2Under the atmosphere, carbonaceous fuels such as coal absorb a certain amount of water vapour (perhaps CO 2) and heat, carry out gasification reaction, produce CO and H 2, shown in following (1), (2) formula.
C+H 2O (gas) → H 2(gas)+CO (gas) (1)
C+CO 2(gas) → 2CO (gas) (2)
Simultaneously, in the lower end of fuel reaction device 1, gasification product (H 2CO) with CuO and Cu 2The O reaction produces CO 2And water vapour, and discharge certain heat; In addition, CaO and CO 2Carry out carbonation reaction, specific as follows shown in:
H 2/ CO (gas)+CuO → Cu+H 2O/CO 2(gas) (3)
H 2/ CO (gas)+Cu 2O → 2Cu+H 2O/CO 2(gas) (4)
CaO+CO 2(gas) → CaCO 3(5)
And in the upper end of fuel reaction device 1, the CuO decomposition discharges O 2, and with coal fully a small amount of incondensable gas of being produced of reaction (comprise CO and H 2) directly burning, produce CO 2And water vapour; Simultaneously, CaO finishes and the reaction of water vapour activation and CO 2Absorption, specifically react as follows:
4CuO → 2Cu 2O+O 2(gas) (6)
2CO/H 2(gas)+O 2(gas) → 2CO 2/ H 2O (gas) (7)
CaO+H 2O (gas) → Ca (OH) 2(8)
Ca(OH) 2+CO 2→CaCO 3+H 2O (9)
Secondly, in air reactor 4, finish Cu and air (O 2+ 3.76N 2) oxidation regeneration, and discharge a large amount of heats, specifically react as follows:
2Cu+ (O 2+ 3.76N 2) (gas) → 2CuO+3.76N 2(gas) (10)
At last, in calcinatory 7, utilize the entrained heat of CuO, finish the calcination and regeneration of Wingdale, produce the CO of CaO and high density 2Gas, concrete reaction formula is as follows:
CaCO 3/CuO→CaO/CuO+CO 2 (11)
By above-mentioned analysis, as can be seen, not only realized abundant conversion, the high concentration CO of coal dust 2Generation, but also finished the reducing/regenerating of CuO, the calcining and decomposing of Wingdale, online activation and the CO of CaO 2Absorption.
(3) this process has promoted the abundant conversion of coal dust, can obtain the CO of high density 2
(4) by the online activation of CaO and water vapour, avoided CaO to CO 2Absorptive capacity helps the reactive maintenance of CaO along with the reduction of circulating reaction number of times;
(5) simultaneously, by CaO to CO in the fuel reaction device tail flue gas 2And H 2The absorption of O steam has reduced the quantity discharged of fuel reaction device tail flue gas and the cost that condensation process expends greatly;
(6), realized the system capacity balance by the utilization of heat absorption between the differential responses and thermal discharge.
Description of drawings
Fig. 1. with CuO-CaCO 3Coal combustion CO for complex carrier 2Acquisition equipment figure.
Fig. 2. with CuO-CaCO 3Coal combustion CO for complex carrier 2Catch schema.
Embodiment
Coal dust firing CO proposed by the invention 2Acquisition equipment, as shown in Figure 1, by two-part bubbling fluidized bed 1, grit separator 2, CaCO 3Separator 3, the 3rd cyclonic separator 10 and coal fly ash trap 11 are formed the fuel reaction device A of system; Form the B of air reactor system by fast fluidized bed 4, first cyclonic separator 5, first seal valve 6 again; At last, link to each other successively, form the calcinatory C of system by fast fluidized bed 7, second cyclonic separator 8, second seal valve 9.
The present invention is a raw material with carbonaceous fuels such as coal and CuO-Wingdale complex carrier, carries out a series of reaction, finishes the abundant burning and the high concentration CO of coal 2Capture, flow process as shown in Figure 2, embodiment is as follows:
1. at first, at the lower semisection of fuel reaction device 1, the water vapour or the CO of 850 ℃ of left and right sides temperature of reaction and high density 2Under the atmosphere, finish coal gasification, gasification product and CuO/Cu 2The oxidizing reaction of O, the carbonation reaction of CaO (specifically suc as formula shown in (1)-(5));
2. at the upper semisection of fuel reaction device 1, under the temperature of reaction about 550 ℃, finish the decomposition thermo-negative reaction of CuO respectively, the O that discharges 2With coal at the fuel reaction device 1 lower semisection incondensable gas of complete reaction (CO and H not 2) carry out oxidizing reaction; Simultaneously, CaO absorbs water vapour and activates, and absorbs a large amount of CO that the coal combustion reaction produces 2, specifically suc as formula shown in (6)-(9).
3. the solid remnants of fuel reaction device 1 hypomere comprise coal ash, Cu and CaCO 3, by grit separator 2, separate coal ash, remaining Cu and CaCO 3Deliver into separator 3 again, finish CaCO 3Separation, then Cu is delivered into air reactor 4; And the residual gas of fuel reaction device 1 epimere and coal fly ash particle then by the 3rd cyclonic separator 10 and coal ash trap 11, are finished the processing of fly ash particle and residual gas.
4. in air reactor 4, under 850 ℃ the temperature of reaction, finish the oxidation of Cu and air, regeneration forms CuO and discharges a large amount of heats, and specifically as reacting shown in (10) formula, the residual air that is produced separates emptying by first cyclonic separator 5; The CuO that produces is then by first cyclonic separator 5 and first seal valve 6, and transmission enters calcination reactor 7;
5. in calcination reactor 7, temperature of reaction about 900 ℃ and CO 2Under the atmosphere, the heat that utilizes CuO to carry is finished CaCO 3Calcining, concrete as reaction produces CaO, and takes with CuO and pass through second cyclonic separator 8 and second seal valve 9 together as (11) formula shown in, circulating enters the epimere of fuel reaction device 1.Said process constantly repeats, thereby realizes the coal combustion high concentration CO 2Capture, obtain highly purified CO 2Gas.
The present invention is also with CuFe 2O 4, MnFe 2O 4, CoFe 2O 4With the Wingdale complex carrier be that raw material is tested, specific implementation process is as follows:
1. at the lower semisection of fuel reaction device 1, the water vapour or the CO of 850 ℃ of left and right sides temperature of reaction and high density 2Under the atmosphere, finish coal gasification, gasification product and MeFe 2O 4(Me=Cu, Mn and Co) and vacant wustite MeFe thereof 2O 4-xThe oxidizing reaction of (0≤x≤2), the carbonation reaction of CaO (concrete and step (1)-(5) formula is similar);
2. at the upper semisection of fuel reaction device 1, under the temperature of reaction about 900 ℃, finish MeFe respectively 2O 4The decomposition thermo-negative reaction of (Me=Cu, Mn and Co), the O that discharges 2With coal at the fuel reaction device 1 lower semisection incondensable gas of complete reaction (CO and H not 2) carry out oxidizing reaction; Simultaneously, CaO absorbs water vapour and activates, and absorbs a large amount of CO that the coal combustion reaction produces 2, concrete similar with (6)-(9) formula.
3. the solid remnants of fuel reaction device 1 hypomere comprise coal ash, Me (Me=Cu, Mn and Co), Fe 3O 4And CaCO 3, by grit separator 2, separate coal ash, remaining Me (Me=Cu, Mn and Co), Fe 3O 4And CaCO 3Deliver into separator 3 again, finish CaCO 3Separation, then Me (Me=Cu, Mn and Co) and Fe 3O 4Deliver into air reactor 4; And the residual gas of fuel reaction device 1 epimere and coal fly ash particle then by the 3rd cyclonic separator 10 and coal ash trap 11, are finished the processing of fly ash particle and residual gas.
4. in air reactor 4, under 850 ℃ the temperature of reaction, finish Me (Me=Cu, Mn and Co), Fe 3O 4With the oxidation of air, regeneration forms MeFe 2O 4(Me=Cu, Mn and Co) also discharges a large amount of heats, and concrete similar as reaction and (10) formula, the residual air that is produced separates emptying by first cyclonic separator 5; And the MeFe that produces 2O 4(Me=Cu, Mn and Co) then by first cyclonic separator 5 and first seal valve 6, transmission enters calcination reactor 7;
5. in calcination reactor 7, temperature of reaction about 900 ℃ and CO 2Under the atmosphere, utilize MeFe 2O 4The heat that (Me=Cu, Mn and Co) carries is finished CaCO 3Calcining, concrete as reaction is similar with (11), produce CaO, and take same MeFe 2O 4(Me=Cu, Mn and Co) together by second cyclonic separator 8 and second seal valve 9, circulation enters the epimere of fuel reaction device 1.Said process constantly repeats, thereby realizes the coal combustion high concentration CO 2Capture, obtain highly purified CO 2Gas.

Claims (5)

1. based on metal oxide-CaCO 3The coal combustion CO of absorption agent 2Catching method is specially:
(1) carry out coal dust gasification and metal oxide simultaneously and decompose, coal dust gasification product and metal oxide and this metal oxide decompose the more lower valency reactive metal oxide that is produced, and generate CO 2, water vapour, CO, H 2And metal, and metal oxide decomposes the O that produces 2With the CO and the H that generate 2Carry out oxidizing reaction, generate CO 2And water vapour;
(2) CO of CaO absorption step (1) generation 2And water vapour, generate CaCO 3And Ca (OH) 2, Ca (OH) 2Further absorb CO 2Generate CaCO 3
(3) CaCO that step (2) is generated 3Calcining and decomposing produces pure CO 2Gas and CaO.
2. coal dust firing CO according to claim 1 2Catching method is characterized in that, metal and atmospheric oxidation with described step (1) generates are regenerated as metal oxide.
3. coal dust firing CO according to claim 1 2Catching method is characterized in that, the CaO in the described step (2) derives from step (3) CaCO 3Decomposition.
4. coal dust firing CO according to claim 1 2Catching method is characterized in that, described metal oxide is CuO, CuFe 2O 4, MnFe 2O 4, CoFe 2O 4In any one.
5. realize the device of one of claim 1 to 4 described method, comprise the two-part bubbling fluidized bed, grit separator, the CaCO that join successively 3Separator, fast fluidized bed, first cyclonic separator, first seal valve, fast fluidized bed, second cyclonic separator, second seal valve and two-part bubbling fluidized bed, bubbling fluidized bed also are connected with the coal fly ash trap with the 3rd cyclonic separator respectively.
CN2011100694127A 2011-03-22 2011-03-22 Coal combustion CO2 capturing method and device based on metal oxide-CaCO3 absorbent Pending CN102225760A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100694127A CN102225760A (en) 2011-03-22 2011-03-22 Coal combustion CO2 capturing method and device based on metal oxide-CaCO3 absorbent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100694127A CN102225760A (en) 2011-03-22 2011-03-22 Coal combustion CO2 capturing method and device based on metal oxide-CaCO3 absorbent

Publications (1)

Publication Number Publication Date
CN102225760A true CN102225760A (en) 2011-10-26

Family

ID=44806774

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100694127A Pending CN102225760A (en) 2011-03-22 2011-03-22 Coal combustion CO2 capturing method and device based on metal oxide-CaCO3 absorbent

Country Status (1)

Country Link
CN (1) CN102225760A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115715984A (en) * 2022-09-28 2023-02-28 山东大学 Copper-cerium modified CaO for synergistically removing carbon dioxide and NO based on calcium circulation, and preparation method and application thereof
CN116964002A (en) * 2020-12-22 2023-10-27 石灰网社会效益有限责任公司 Facility and method for producing decarbonized oxides or hydroxides using carbonates and electricity

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101666546A (en) * 2009-09-30 2010-03-10 华中科技大学 Pulverized coal combustion method and device with function of capturing CO2
CN101878059A (en) * 2007-11-27 2010-11-03 韦斯特克环境方案有限责任公司 Method and means for capture and long-term sequestration of carbon dioxide

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101878059A (en) * 2007-11-27 2010-11-03 韦斯特克环境方案有限责任公司 Method and means for capture and long-term sequestration of carbon dioxide
CN101666546A (en) * 2009-09-30 2010-03-10 华中科技大学 Pulverized coal combustion method and device with function of capturing CO2

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116964002A (en) * 2020-12-22 2023-10-27 石灰网社会效益有限责任公司 Facility and method for producing decarbonized oxides or hydroxides using carbonates and electricity
CN115715984A (en) * 2022-09-28 2023-02-28 山东大学 Copper-cerium modified CaO for synergistically removing carbon dioxide and NO based on calcium circulation, and preparation method and application thereof
CN115715984B (en) * 2022-09-28 2024-03-08 山东大学 Copper-cerium modified CaO for cooperatively removing carbon dioxide and NO based on calcium circulation, and preparation method and application thereof

Similar Documents

Publication Publication Date Title
US11668266B2 (en) Total recycling system of capturing, conversion and utilization of flue gas from factory, power plant and refinery
CN101666546B (en) Pulverized coal combustion method and device with function of capturing CO2
CN102200277B (en) Chemical chain combustion method and device through solid fuel
CN102364246A (en) Method and system for collectively removing NOx and mercury (Hg) in coal-fired flue gas by utilizing secondary combustion of biomass charcoal
CN101780371B (en) Method for jointly removing carbon dioxide and sulfur dioxide from smoke
CN101797470A (en) Method for circularly trapping SO2 and CO2 by using calcium-based absorbent
CN101791561B (en) Desulphurization and denitration catalyst and preparation method thereof
CN102114386B (en) Desulfurization and demercuration method for flue gas
CN104403697B (en) A kind of coal-fired boiler in power plant smoke emissioning pollution thing controls device and control method
CN107903921B (en) Carbon emission reduction system coupling cement production and spent bleaching clay recycling
CN103157356B (en) Sintering denitrification system and nitrogen oxide removal method thereof
CN104107627A (en) Device and method for cooperative desulfurization, denitration, demercuration and dioxin removal of sintering flue gas by virtue of circulating fluidized bed semidry method
CN101972599B (en) Calcium-based CO2 absorbing and regenerating device
CN209155342U (en) A kind of flue gas multiple pollutant dry method cooperation-removal device
CN104100992A (en) Low-energy-consumption oxygen-enriched combustion system coupling solar energy and chemical loop air separation
CN105944528A (en) Device and method for capturing CO2 in flue gas by using Ca/Cu-based composite particles
CN107824039A (en) Composite oxidant and the method for dry desulfurization denitration
CN103446875A (en) Reinforced desulphurization method and reinforced desulphurization system of desulphurizer for combustion system of circulating fluidized bed
CN108302523A (en) A kind of composite absorber cycle capture CO with hydration reactor2Device and method
CN107694340A (en) A kind of calcium-base absorbing agent active regeneration and circularly removing CO2Method
CN101746720B (en) Method and device for zero emission of CO2 from burning coal
CN102589147B (en) Method for combusting solid fuel by chemical looping and device thereof
CN102225760A (en) Coal combustion CO2 capturing method and device based on metal oxide-CaCO3 absorbent
CN106178877A (en) A kind of coke oven flue waste gas purification waste heat recovery apparatus and technique
CN102489148B (en) Method and device for cyclic removal of CO2 from boiler flue gas with microwave calcined calcium-based absorbent

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20111026