CN101550846A - A chemical looping combustion power generation process and system using landfill gas - Google Patents
A chemical looping combustion power generation process and system using landfill gas Download PDFInfo
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- CN101550846A CN101550846A CNA2009100837195A CN200910083719A CN101550846A CN 101550846 A CN101550846 A CN 101550846A CN A2009100837195 A CNA2009100837195 A CN A2009100837195A CN 200910083719 A CN200910083719 A CN 200910083719A CN 101550846 A CN101550846 A CN 101550846A
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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
- B01D2258/05—Biogas
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The present invention discloses a chemical looping combustion power generation process and system using landfill gas, which falls into the range of efficient landfill gas cleaning and utilization technique. This power generation system is composed of a landfill gas collection system, a chemical looping combustion system, and a gas and steam combined cycle power generation system. In the process, the simple substance metal in the air reactor takes oxidation reaction with air, the landfill gas and the obtained metal oxide take reduction reaction in the fuel reactor to generate single substance metal, CO2 and water vapor, and the reduced simple substance metal returns to the air reactor via the refeed line and completes the regeneration of metal oxide; the gas at the outlet of the fuel reactor and the gas at the outlet of the air reactor are led to two separate gas and steam combined cycle power generation systems for power generation and CO2 recovery.
Description
Technical field
The high-efficiency cleaning that the invention belongs to rubbish landfill gas utilizes technical scope, particularly based on a kind of chemical looping combustion electrification technique as well as and system that utilizes rubbish landfill gas of the combustion power generation process of circulation oxygen carrier.
Background technique
Rubbish landfill gas is a kind of renewable energy sources, methane content is higher, calorific value and town gas are suitable, be about half of heating value of natural gas, has good value, therefore when administering the rubbish landfill gas pollution, often it is carried out using energy source work, turn waste into wealth, realize the purpose of doulbe-sides' victory to reach.The content of carbon dioxide is also very high in the rubbish landfill gas, and carbon dioxide is the greenhouse gases that have the greatest impact in many greenhouse gases, and how reducing emission of carbon dioxide has become one of important content of human kind sustainable development.Conventional combustion technology all is that fuel directly contacts with air, and carbon dioxide only accounts for 10%-15% in the flue gas of generation, and the separating treatment cost is too high, and following method is arranged usually:
1. burning post-processing technology, as by the molecular film separation method carbon dioxide being separated purification processes, its separation effect is low and cost is high.
2. the burning pretreatment technology is fuel gasification generation synthetic gas H in vaporizer earlier
2And CO, enter the water gas reaction device then, with the CO that produces
2The H that obtains after the separation
2Be used for gas turbine power generation, yet also not large-scale at present gasification power station is in operation.
3. remove carbon dioxide by photosynthesis of plant, seek the high-performance bio algae and remove carbon dioxide on a large scale, the technological break-through of still needing.
The present invention when realizing that the rubbish landfill gas high-efficiency cleaning utilizes, makes CO by the associating of landfill gas gas-collecting system, chemical looping combustion system and combustion and steam association circulating power generation system three big systems
2Discharging is effectively controlled, and obtains highly purified CO by gas fractionation unit
2Gas is applied to other chemical field.
Summary of the invention
The purpose of this invention is to provide combustion power generation process based on the circulation oxygen carrier, do not having under the prerequisite of extra energy consumption, a kind of chemical looping combustion electrification technique as well as and system that utilizes rubbish landfill gas that carbon dioxide is separated from products of combustion, it is characterized in that, the described chemical looping combustion power generation system of rubbish landfill gas of utilizing is by the landfill gas gas-collecting system, chemical looping combustion system and combustion and steam association circulating power generation system constitute jointly, its concrete structure is: the outlet of landfill gas gas-collecting system 1 links to each other with the import of the fuel reaction device 21 of chemical looping combustion system 2,21 outlets of fuel reaction device link to each other with first gas turbine, 31 imports of combustion and steam association circulating power generation system 3, the outlet of first gas turbine 31 links to each other with the flue gas inlet of first exhaust heat boiler 32, the import of first steam turbine 33 links to each other with the steam outlet of first exhaust heat boiler 32, the smoke outlet of first exhaust heat boiler 32 links to each other with the import of first condenser 34, the outlet of first condenser 34 links to each other with the import of compressor 35, and the outlet of compressor 35 links to each other with the import of caisson 36; Air reactor 22 outlets of chemical looping combustion system 2 link to each other with the import of second gas turbine 37 of combustion and steam combined cycle system 3, the outlet of second gas turbine 37 links to each other with the flue gas inlet of second exhaust heat boiler 38, the import of second steam turbine 39 links to each other with the steam outlet of second exhaust heat boiler 38, and the smoke outlet of second exhaust heat boiler 38 is linked on the chimney 310.
It is described that to utilize the chemical looping combustion electrification technique as well as of rubbish landfill gas be to carry out in the power generation system that is constituted jointly by landfill gas gas-collecting system, chemical looping combustion system and combustion and steam association circulating power generation system, metal simple-substance is that Fe, Cu, Mn, Ni, Ca or Mg and air carry out oxidation reaction in the air reactor, and the metallic oxide of generation carries with air-flow and enters the fuel reaction device; Rubbish landfill gas and metallic oxide generation reduction reaction in the fuel reaction device, generate metal simple-substance, carbon dioxide and water vapor, metal simple-substance after the reduction turns back to air reactor through revert pipe, with air generation oxidation reaction, finishes the regenerative process of metallic oxide; The gas of fuel reaction device and air reactor outlet feeds respectively that two independent combustion and steam combined cycle systems are generated electricity and the recovery of carbon dioxide; In the power generation process, the not direct and air catalytic combustion of rubbish landfill gas in the fuel reaction device, but the alternating oxidation by between fuel reaction device and air reactor-reduction reaction realizes the combustion process of rubbish landfill gas, the tail gas of two reactor outlets enters the combustion and steam combined cycle system and generates electricity, that is: when burning takes place, metal simple-substance and air carry out oxidation reaction in air reactor, and the metallic oxide of generation carries with air-flow and enters the fuel reaction device; Rubbish landfill gas and metallic oxide generation reduction reaction from the landfill gas gas-collecting system, generate metal simple-substance, carbon dioxide and water vapor, metal simple-substance turns back to air reactor through revert pipe, with air generation oxidation reaction, finishes the regenerative process of metallic oxide; The gas of fuel reaction device and air reactor outlet feeds respectively that two independent combustion and steam combined cycle systems are generated electricity and the recovery of carbon dioxide.In the combustion reaction process, the fuel reaction device is in 800 ℃～1000 ℃ state of temperatures, the outlet port gas pressure is in 0.75Mpa～0.85Mpa pressure range, and air reactor is in 900 ℃～1100 ℃ state of temperatures, and the outlet port gas pressure is in 0.75Mpa～0.85Mpa pressure range.
Described metal simple-substance be Fe, Cu, Mn, Ni, Ca and.Or Mg.
Circulation oxygen carrier in the described chemical looping combustion system is a metal oxide particle.
Beneficial effect of the present invention: the main component methane of rubbish landfill gas is inflammable, in underground gathering, blasts easily, if therefore do not carry out the collection of biogas and handle the blast that causes landfill yard possibly.And conventional burning to utilize technology all be that fuel directly contacts with air, carbon dioxide only accounts for 10%-15% in the flue gas of generation, the separating treatment cost is too high.The invention provides a kind of rubbish landfill gas and chemical looping combustion electrification technique as well as, under the condition that does not have the additional energy loss, carbon dioxide can be separated from products of combustion and store, realize the high-efficiency cleaning utilization of rubbish landfill gas simultaneously.How realizing the indirect burning of rubbish landfill gas, is to realize that rubbish landfill gas utilizes the key of reducing emission of carbon dioxide in the process, and its technology has social benefit and economic benefit widely.
Description of drawings
Fig. 1 is a process structure schematic representation of the present invention.Landfill gas gas-collecting system 1 is wherein arranged, chemical looping combustion system 2, combustion and steam association circulating power generation system 3, fuel reaction device 21, air reactor 22, the first gas turbines 31, first exhaust heat boiler, 32, the first steam turbines, 33, the first condensers 34, compressor 35, caisson 36, the second gas turbines 37, the second exhaust heat boilers 38, second steam turbine 39, chimney 310.
Embodiment
The invention provides combustion power generation process, do not having under the prerequisite of extra energy consumption, a kind of chemical looping combustion electrification technique as well as and system that utilizes rubbish landfill gas that carbon dioxide is separated from products of combustion based on the circulation oxygen carrier.In Fig. 1, utilize the chemical looping combustion power generation system of rubbish landfill gas to constitute jointly by landfill gas gas-collecting system 1, chemical looping combustion system 2 and combustion and steam association circulating power generation system 3.The outlet of landfill gas gas-collecting system 1 links to each other with the import of the fuel reaction device 21 of chemical looping combustion system 2,21 outlets of fuel reaction device link to each other with first gas turbine, 31 imports of combustion and steam association circulating power generation system 3, the outlet of first gas turbine 31 links to each other with the flue gas inlet of first exhaust heat boiler 32, the import of first steam turbine 33 links to each other with the steam outlet of first exhaust heat boiler 32, the smoke outlet of first exhaust heat boiler 32 links to each other with the import of first condenser 34, the outlet of first condenser 34 links to each other with the import of compressor 35, the outlet of compressor 35 links to each other with the import of caisson 36, forms that first independent combustion and steam combined cycle system is generated electricity and the recovery of carbon dioxide.Air reactor 22 outlets by chemical looping combustion system 2 link to each other with the import of second gas turbine 37 of combustion and steam combined cycle system 3 in addition, the outlet of second gas turbine 37 links to each other with the flue gas inlet of second exhaust heat boiler 38, the import of second steam turbine 39 links to each other with the steam outlet of second exhaust heat boiler 38, the smoke outlet of second exhaust heat boiler 38 is linked on the chimney 310, forms that second independent combustion and steam combined cycle system generated electricity and the recovery of carbon dioxide.
When the chemical looping combustion reaction took place, metal simple-substance and air carried out oxidation reaction in air reactor 22, and the metallic oxide of generation enters fuel reaction device 21 after cyclone separator separates; Rubbish landfill gas and metallic oxide generation reduction reaction from landfill gas gas-collecting system 1, generate metal simple-substance, carbon dioxide and water vapor, metal simple-substance turns back to air reactor 22 and air generation oxidation reaction through revert pipe, finishes the regenerative process of metallic oxide; At first feed the acting of expanding in the gas turbine 31 in the combustion and steam combined cycle system from the carbon dioxide of the High Temperature High Pressure of fuel reaction device 21 outlet and water vapour and directly drive generator for electricity generation.The exhaust that still has the gas turbine 31 of uniform temperature enters exhaust heat boiler 32, and steam driven steam turbine 33 rotations to produce High Temperature High Pressure drive generator for electricity generation.The tail gas of discharging from exhaust heat boiler condenser 34 coolings of entering, and remove moisture content after overcompression machine 35 is compressed to pure carbon dioxide in the gas holder 36.
The nitrogen of the High Temperature High Pressure of air reactor 22 outlets and part oxygen at first feed the acting of expanding in the gas turbine 37 in the combustion and steam combined cycle system and directly drive generator for electricity generation.The exhaust that still has the gas turbine 37 of uniform temperature enters exhaust heat boiler 38, and steam driven steam turbine 39 rotations to produce High Temperature High Pressure drive generator for electricity generation.Discharge from chimney 310 from the tail gas that exhaust heat boiler is discharged.In the combustion reaction process, fuel reaction device 21 is in 800 ℃～1000 ℃ state of temperatures, the outlet port gas pressure is in 0.75Mpa～0.85Mpa pressure range, air reactor 22 is in 900 ℃～1100 ℃ state of temperatures, and the outlet port gas pressure is in 0.75Mpa～0.85Mpa pressure range.
Claims (4)
1. chemical looping combustion power generation system of utilizing rubbish landfill gas, it is characterized in that, the described chemical looping combustion power generation system of rubbish landfill gas of utilizing is by landfill gas gas-collecting system (1), chemical looping combustion system (2) and combustion and steam association circulating power generation system (3) constitute jointly, its concrete structure is: the outlet of landfill gas gas-collecting system (1) links to each other with the import of the fuel reaction device (21) of chemical looping combustion system (2), fuel reaction device (21) outlet links to each other with first gas turbine (31) import of combustion and steam association circulating power generation system (3), the outlet of first gas turbine (31) links to each other with the flue gas inlet of first exhaust heat boiler (32), the import of first steam turbine (33) links to each other with the steam outlet of first exhaust heat boiler (32), (32 smoke outlet links to each other with the import of first condenser (34) first exhaust heat boiler, the outlet of first condenser (34) links to each other with the import of compressor (35), and the outlet of compressor (35) links to each other with the import of caisson (36); Air reactor (22) outlet of chemical looping combustion system (2) links to each other with the import of second gas turbine (37) of combustion and steam combined cycle system (3), (38 flue gas inlet links to each other with second exhaust heat boiler in the outlet of second gas turbine (37), the import of second steam turbine (39) links to each other with the steam outlet of second exhaust heat boiler (38), and the smoke outlet of second exhaust heat boiler (38) is linked on the chimney (310).
2. chemical looping combustion electrification technique as well as that utilizes rubbish landfill gas, it is characterized in that, it is described that to utilize the chemical looping combustion electrification technique as well as of rubbish landfill gas be to carry out in the power generation system that is constituted jointly by landfill gas gas-collecting system, chemical looping combustion system and combustion and steam association circulating power generation system, metal simple-substance and air carry out oxidation reaction in the air reactor, and the metallic oxide of generation carries with air-flow and enters the fuel reaction device; Rubbish landfill gas and metallic oxide generation reduction reaction in the fuel reaction device, generate metal simple-substance, carbon dioxide and water vapor, metal simple-substance after the reduction turns back to air reactor through revert pipe, with air generation oxidation reaction, finishes the regenerative process of metallic oxide; The gas of fuel reaction device and air reactor outlet feeds respectively that two independent combustion and steam combined cycle systems are generated electricity and the recovery of carbon dioxide; In the power generation process, the not direct and air catalytic combustion of rubbish landfill gas in the fuel reaction device, but the alternating oxidation by between fuel reaction device and air reactor-reduction reaction realizes the combustion process of rubbish landfill gas, the tail gas of two reactor outlets enters the combustion and steam combined cycle system and generates electricity, that is: when burning takes place, metal simple-substance and air carry out oxidation reaction in air reactor, and the metallic oxide of generation carries with air-flow and enters the fuel reaction device;
Rubbish landfill gas and metallic oxide generation reduction reaction from the landfill gas gas-collecting system, generate metal simple-substance, carbon dioxide and water vapor, metal simple-substance turns back to air reactor through revert pipe, with air generation oxidation reaction, finishes the regenerative process of metallic oxide; The gas of fuel reaction device and air reactor outlet feeds respectively that two independent combustion and steam combined cycle systems are generated electricity and the recovery of carbon dioxide.In the combustion reaction process, the fuel reaction device is in 800 ℃～1000 ℃ state of temperatures, the outlet port gas pressure is in 0.75Mpa～0.85Mpa pressure range, and air reactor is in 900 ℃～1100 ℃ state of temperatures, and the outlet port gas pressure is in 0.75Mpa～0.85Mpa pressure range.
3. according to the described chemical looping combustion electrification technique as well as that utilizes rubbish landfill gas of claim 2, it is characterized in that described metal simple-substance is Fe, Cu, Mn, Ni, Ca or Mg.
4. according to the described chemical looping combustion electrification technique as well as that utilizes rubbish landfill gas of claim 2, it is characterized in that the circulation oxygen carrier in the described chemical looping combustion system is the oxide particle of above-mentioned metal.
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| CN2009100837195A CN101550846B (en) | 2009-05-07 | 2009-05-07 | A chemical looping combustion power generation process and system using landfill gas |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052102A (en) * | 2010-11-26 | 2011-05-11 | 绍兴文理学院 | Coal chemical chain combustion generating process and device |
| US9909756B2 (en) | 2012-11-30 | 2018-03-06 | Saudi Arabian Oil Company | Staged chemical looping process with integrated oxygen generation |
| CN108644017A (en) * | 2018-05-31 | 2018-10-12 | 武汉理工大学 | Based on the zero carbon row's IGCC power generation system being thermally integrated and method |
| CN110985153A (en) * | 2019-11-15 | 2020-04-10 | 深圳市燃气集团股份有限公司 | Distributed energy system based on chemical looping combustion |
| CN112175675A (en) * | 2020-10-08 | 2021-01-05 | 宁夏大学 | Carbon capture pressurized coal heating system and operation method |
| CN114484449A (en) * | 2022-03-10 | 2022-05-13 | 中国科学院过程工程研究所 | Wind-solar driven solid waste treatment multi-connection device system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4784672A (en) * | 1987-10-08 | 1988-11-15 | Air Products And Chemicals, Inc. | Regeneration of adsorbents |
| JP3236724B2 (en) * | 1993-11-30 | 2001-12-10 | 東京エレクトロン株式会社 | Vacuum processing equipment |
| US5681360A (en) * | 1995-01-11 | 1997-10-28 | Acrion Technologies, Inc. | Landfill gas recovery |
| US5642630A (en) * | 1996-01-16 | 1997-07-01 | Abdelmalek; Fawzy T. | Process for solids waste landfill gas treatment and separation of methane and carbon dioxide |
| US6205704B1 (en) * | 1998-03-09 | 2001-03-27 | William C. Crutcher | Method and apparatus for enhancing plant growth in greenhouses utilizing landfill gas |
| CN201056548Y (en) * | 2006-10-03 | 2008-05-07 | 东莞市康达机电工程有限公司 | Absorption and reprocessing system for landfill gas |
| CN100547300C (en) * | 2006-10-18 | 2009-10-07 | 东莞市康达机电工程有限公司 | Garbage landfill gas concentration control system |
-
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- 2009-05-07 CN CN2009100837195A patent/CN101550846B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052102A (en) * | 2010-11-26 | 2011-05-11 | 绍兴文理学院 | Coal chemical chain combustion generating process and device |
| US9909756B2 (en) | 2012-11-30 | 2018-03-06 | Saudi Arabian Oil Company | Staged chemical looping process with integrated oxygen generation |
| US10663163B2 (en) | 2012-11-30 | 2020-05-26 | Saudi Arabian Oil Company | Staged chemical looping process with integrated oxygen generation |
| CN108644017A (en) * | 2018-05-31 | 2018-10-12 | 武汉理工大学 | Based on the zero carbon row's IGCC power generation system being thermally integrated and method |
| CN110985153A (en) * | 2019-11-15 | 2020-04-10 | 深圳市燃气集团股份有限公司 | Distributed energy system based on chemical looping combustion |
| CN112175675A (en) * | 2020-10-08 | 2021-01-05 | 宁夏大学 | Carbon capture pressurized coal heating system and operation method |
| CN114484449A (en) * | 2022-03-10 | 2022-05-13 | 中国科学院过程工程研究所 | Wind-solar driven solid waste treatment multi-connection device system |
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