CN106215682A - A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system2method for catching - Google Patents

A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system2method for catching Download PDF

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CN106215682A
CN106215682A CN201610638507.9A CN201610638507A CN106215682A CN 106215682 A CN106215682 A CN 106215682A CN 201610638507 A CN201610638507 A CN 201610638507A CN 106215682 A CN106215682 A CN 106215682A
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gas
calcium
cooling
absorbing agent
catching
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CN106215682B (en
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段伦博
陈健
苏成林
石田
周琳绯
杨朋
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Southeast University
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Southeast University
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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
    • 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
    • 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
    • B01D53/96—Regeneration, reactivation or recycling of reactants
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/04—Purification or separation of nitrogen
    • C01B21/0405—Purification or separation processes
    • C01B21/0411—Chemical processing only
    • C01B21/0416—Chemical processing only by oxidation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/24—Cements from oil shales, residues or waste other than slag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2210/00—Purification or separation of specific gases
    • C01B2210/0001—Separation or purification processing
    • C01B2210/0003—Chemical processing
    • C01B2210/0004—Chemical processing by oxidation
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]
    • 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
    • Y02P20/10—Process efficiency
    • 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
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • 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
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/18—Carbon capture and storage [CCS]
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

The present invention discloses a kind of CO towards Gas Generator Set heating-cooling-power cogeneration system2Method for catching, in the method, air is sent in compressor (1), send into after being compressed to specified pressure in gas turbine or internal combustion engine (2), air after compression in gas turbine or internal combustion engine with the natural gas mixed combustion that sprays into, form the combustion gas of High Temperature High Pressure, combustion gas expansion work, promotion impeller rotates, and then drives electromotor (3) generating；The outlet of gas turbine or internal combustion engine (2) is connected with the bottom of carbonation reactor (4), for gas turbine or internal combustion engine are produced rich in a large amount of CO2Combustion gas be passed through in carbonation reactor, and then removing combustion gas in CO2.The present invention combines calcium looping process and efficiently traps CO2Advantage and the feature of Combined Heating Cooling And Power cascaded utilization of energy, calcium looping process is coupled with Combined Heating Cooling And Power, it is achieved that zero carbon emission of Combined Heating Cooling And Power and obtain high concentration be available for compression store CO2And N2。

Description

A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system2Method for catching
Technical field
Calcium looping process and Combined Heating Cooling And Power are coupled by the present invention, utilize calcium looping process to realize thermoelectric cold connection Zero carbon emission of product system, obtain again high concentration is available for the CO that compression stores simultaneously2、N2, belong to energy technology and protect with environment Protect technology crossing domain.
Background technology
Combined Heating Cooling And Power is a kind of foundation on energy cascade utilization conceptual foundation, first with combustion gas high-grade heat Can do work in prime mover generating, the produced used heat of recycling prime mover generating carries out heat supply, dehumidifies or drive mechanism of absorption Cold.Utilize exhaust heat refrigerating, decrease the demand of electric air conditioner in summer, abatement power peak value in summer can be further functioned as actively work With.But in Combined Heating Cooling And Power, the burning of the fuel gas such as natural gas can discharge a large amount of CO2, ecological environment is caused Serious destruction.
Carbon capture and Plugging Technology Applied (CCS) are the reduction whole world CO generally acknowledged at present2The method that concentration is maximally efficient.Wherein, Calcium looping process is because the advantages such as calcium-base absorbing agent low price, aboundresources receive the extensive concern in the whole world.Its technique stream Journey specifically includes that calcium-base absorbing agent enters calcination reactor calcining, decomposes and generates CaO and CO2, the CO of generation2Concentration can reach More than 95%, can directly reclaim after compression and be used for sealing up for safekeeping；The CaO generated traps in flue gas in entering carbonation reactor CO2, CO in flue gas2Concentration can be reduced to less than 5%, the CaCO of generation3Return calcination reactor and carry out calcination and regeneration, so Iterative cycles, it is achieved CO2Reduce discharging purpose.In running, supplement fresh calcium-base absorbing agent in good time and discharge part inactivation Absorbent can realize the continuous and steady operation of whole system.
Summary of the invention
Technical problem: it is an object of the invention to provide a kind of CO towards Gas Generator Set heating-cooling-power cogeneration system2Catch Method, based on Combined Heating Cooling And Power, has coupled calcium looping process, it is achieved that Combined Heating Cooling And Power on this basis Zero carbon emission, have also obtained simultaneously high concentration be available for compression store CO2And N2。
Technical scheme: for solving above-mentioned technical problem, the present invention provides a kind of towards Gas Generator Set heating-cooling-power cogeneration system The CO of system2Method for catching, the method include compressor, gas turbine or internal combustion engine, electromotor, carbonation reactor, decompressor, Waste heat boiler, heat exchanger A, heat exchanger B, absorption refrigeration unit, calcination reactor, air separator, heat exchanger C, Compressor A, heat exchanger D, compressor B, heat exchanger E, compressor C, one-way control valve A, one-way control valve B, it is unidirectionally controlled Valve C, one-way control valve D；Wherein, the outlet of gas turbine or internal combustion engine is connected with the bottom of carbonation reactor, for firing Gas-turbine or internal combustion engine produce rich in a large amount of CO2Combustion gas be passed through in carbonation reactor, and then removing combustion gas in CO2.Specifically Step is as follows:
Step one. air is sent in compressor, send into after being compressed to specified pressure in gas turbine or internal combustion engine, compression After air in gas turbine or internal combustion engine with the natural gas mixed combustion that sprays into, form the combustion gas of High Temperature High Pressure, combustion gas is swollen Swollen acting, promotes impeller to rotate, and then drives electrical power generators；
Step 2. when combustion gas expanded acting temperature in gas turbine or internal combustion engine of High Temperature High Pressure be reduced to 650～ When 700 DEG C, this part is sent in carbonation reactor still with the combustion gas of certain pressure, in reactor equipped with calcining after Calcium-base absorbing agent, now in carbonation reactor, in main component CaO in calcium-base absorbing agent after calcining and combustion gas CO2Reaction, generates CaCO3, thus the CO being stripped of in combustion gas2；
Step 3. the calcium-base absorbing agent after carbonating is calcination and regeneration, air in one-way control valve C sends into calcination reactor The pure oxygen that separator produces and natural gas mixed combustion in calcination reactor, it is provided that the heat needed for calcining calcium-base absorbing agent；
Step 4. the calcium-base absorbing agent after calcining returns in carbonation reactor again through one-way control valve D, it is achieved one Individual complete circulation；Repeatedly after circulation, the calcium-base absorbing agent of inactivation is discharged from the slag-drip opening of calcination reactor, is simultaneously introduced appropriate Fresh calcium-base absorbing agent；
Step 5. the CO of calcining calcium-base absorbing agent release2The CO generated with combustion of natural gas2Discharge through over-heat-exchanger C After heat, sequentially enter compressor A, compressor B, compressor C store after carrying out multi-stage compression；Wherein, heat exchanger D, heat are handed over Parallel operation E is respectively to the CO after prime compression2Air-flow carries out condensation and except water and reduces temperature；
Step 6. in carbonation reactor, remove CO2After combustion gas continue to be fed into expansion work in decompressor, drive step Multi-stage compression unit compression CO mentioned in rapid five2Air-flow；In decompressor, finish the feeding waste heat boiler of the combustion gas after merit enter Row waste heat recovery, adds hot steam, and combustion gas after waste heat boiler is sent in heat exchanger A, condensed except water after, heat exchanger A outlet can obtain the N of high concentration2；
Step 7. the steam part that waste heat boiler produces enters heat exchanger B by one-way control valve A, hands over through heat Heating as thermal source after parallel operation B regulation temperature, remaining steam sends into Absorption Refrigerator by one-way control valve B Group, provides heat for working medium regeneration.
Wherein:
Gas turbine mentioned in step one or internal combustion engine can replace, not with other equipment with identical effect It is limited only to gas turbine and internal combustion engine both forms.
In step 2, calcium-base absorbing agent is CaCO3Or with CaO/Ca (OH)2/CaCO3Natural minerals or useless for main component Gurry.In carbonation reactor, reaction temperature is 650～700 DEG C, and reaction pressure is by the combustion gas entered in carbonation reactor Pressure determines, gaseous-pressure can be otherwise varied with gas turbine or internal combustion engine model difference, but usually above normal pressure.
Calcining the temperature required for calcium-base absorbing agent in step 3 is 900～950 DEG C, and reaction pressure is normal pressure.Air divides There is provided in calcination reactor the pure oxygen required for combustion of natural gas from device, the N of high concentration can be obtained simultaneously2.Step 3, step In four, calcium-base absorbing agent circulation in carbonation reactor and calcination reactor can be realized by two-stage lock gas system respectively.
For the CO of heat exchanger C outlet in step 52It is not limited to three stage compression, can be according to required CO2Pressure Take suitable number of compression stages.
In step 7 can by controlling one-way control valve A and the aperture of one-way control valve B, thus control cooling load and Heat load.
Beneficial effect:
1. can obtain simultaneously heat supply, freeze, generate electricity, CO2And N2Five kinds of incomes, adequately achieve the cascade utilization of the energy；
2. whole system achieves CO2Zero-emission, be conducive to alleviating greenhouse effect；
After the most circulations, the calcium-base absorbing agent of inactivation as the raw material of cement manufacturing facility, and then can improve whole system Economy.
Accompanying drawing explanation
Fig. 1 is embodiment schematic diagram.
Fig. 2 is a kind of CO towards Gas Generator Set heating-cooling-power cogeneration system2The schematic diagram of method for catching.
Figure has: compressor 1, gas turbine or internal combustion engine 2, electromotor 3, carbonation reactor 4, decompressor 5, waste heat pot Stove 6, heat exchanger A7, one-way control valve A8, heat exchanger B9, one-way control valve B10, absorption refrigeration unit 11, unidirectional control Valve C12 processed, calcination reactor 13, one-way control valve D14, air separator 15, heat exchanger C16, compressor A17, heat exchange Device D18, compressor B19, heat exchanger E20, compressor C21.
Detailed description of the invention
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention done and further explain.Following embodiment limits the most in any form The present invention processed, the technical scheme that the mode of all employing equivalents or equivalent transformation is obtained, it is in the protection model of the present invention Among enclosing.
A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system2Method for catching, as it is shown in figure 1, comprise the steps:
Step one. introduce air in compressor, be passed through after being compressed to specified pressure gas turbine neutralize spray into natural Gas mixed combustion, produces the combustion gas of High Temperature High Pressure.In the present embodiment burner select gas turbine, the fuel gas temperature of generation and Pressure is respectively 852 DEG C and 0.98MPa.Combustion gas expansion work in the gas turbine, drives electrical power generators.For ensureing carbonating In stove, calcium-base absorbing agent is in removing CO2Optimum temperature, in the present invention, combustion turbine exhaustion temperature is chosen to be 650 DEG C.Through meter Calculating, now combustion turbine exhaustion pressure corresponds to 0.44MPa.
Step 2. gas turbine is discharged 650 DEG C, the combustion gas of 0.44MPa is passed through in carbonating stove, equipped with calcining in stove After calcium-base absorbing agent.CO in combustion gas2With the calcium-base absorbing agent generation carbonation reaction after calcining, reactional equation is CaO+CO2 →CaCO3, thus the CO being stripped of in combustion gas2.Meanwhile, combustion gas self with the adding of pressure beneficially carbonation reaction Speed is carried out.
Step 3. the calcium-base absorbing agent after carbonating is sent in calcining furnace and is carried out calcination reaction, and reactional equation is CaCO3→ CaO+CO2,.Calcium-base absorbing agent after calcined is sent back to again and is continued in carbonating stove to absorb the CO in combustion gas2, and then realize Recycling of calcium-base absorbing agent.In calcining furnace, reaction temperature is usually 850～950 DEG C, is set to 950 DEG C in the present embodiment. Calcining furnace is calcined CaCO3Origin of heat in natural gas and the mixed combustion of pure oxygen, wherein pure oxygen is produced by air separator. Air separator can obtain N while producing pure oxygen2, to N2I.e. compressible storage after simple process.Repeatedly lose after circulation The calcium-base absorbing agent lived is discharged from the slag-drip opening of calcining furnace, adds the calcium-base absorbing agent of proper amount of fresh simultaneously, thus ensures carbonic acid Change CO higher in stove2Removal efficiency.
Step 4. in calcining furnace, the CO of calcining calcium-base absorbing agent release2The CO generated with combustion of natural gas2Send into heat to hand over After parallel operation discharges heat, store after sending into the compression of multi-stage compression unit.The present embodiment is selected the compression of three stage compression unit CO2, and to the CO after single stage compress2Air-flow is by heat exchanger condensation dehydration and reduces temperature.
Step 5. in carbonation reactor, remove CO2After combustion gas continue to be fed into expansion work in decompressor, drive step Multi-stage compression unit compression CO mentioned in rapid four2Air-flow.In decompressor, finish the feeding waste heat boiler of the combustion gas after merit enter Row waste heat recovery, adds hot steam.Combustion gas after waste heat boiler is sent in heat exchanger, condensed except water after, heat exchanger Outlet can obtain the N of high concentration2。
Step 6. the steam part that waste heat boiler produces is made after heat exchanger regulation temperature by one-way control valve Heat for thermal source.Remaining steam sends into absorption refrigeration unit by one-way control valve, provides heat for working medium regeneration Amount.

Claims (9)

1. the CO towards Gas Generator Set heating-cooling-power cogeneration system2Method for catching, it is characterised in that the method includes walking as follows Rapid:
Step one. air is sent in compressor (1), send into after being compressed to specified pressure in gas turbine or internal combustion engine (2), pressure Air after contracting in gas turbine or internal combustion engine with the natural gas mixed combustion that sprays into, form the combustion gas of High Temperature High Pressure, combustion gas Expansion work, promotes impeller to rotate, and then drives electromotor (3) generating；
Step 2. when the combustion gas of High Temperature High Pressure in gas turbine or internal combustion engine through burning expansion acting temperature be reduced to 650～ When 700 DEG C, by this part still with in flue gas feeding carbonation reactor (4) of certain pressure, carbonation reactor fills Have the calcium-base absorbing agent after calcining, now in carbonation reactor, main component CaO in calcium-base absorbing agent after calcining with CO in combustion gas2Reaction, generates CaCO3, thus the CO being stripped of in combustion gas2；
Step 3. the calcium-base absorbing agent after carbonating is calcination and regeneration in one-way control valve C (12) sends into calcination reactor (13), The pure oxygen that air separator (15) produces and natural gas mixed combustion in calcination reactor, it is provided that needed for calcining calcium-base absorbing agent Heat；
Step 4. the calcium-base absorbing agent after calcining returns in carbonation reactor again through one-way control valve D (14), it is achieved one Individual complete circulation；Repeatedly after circulation, the calcium-base absorbing agent of inactivation is discharged from the slag-drip opening of calcination reactor, is simultaneously introduced appropriate Fresh calcium-base absorbing agent；
Step 5. the CO of calcining calcium-base absorbing agent release2The CO generated with combustion of natural gas2Discharge through over-heat-exchanger C (16) After heat, sequentially enter compressor A (17), compressor B (19), compressor C (21) store after carrying out multi-stage compression；Wherein, heat Exchanger D (18), heat exchanger E (20) are respectively to the CO after prime compression2Air-flow carries out condensation and except water and reduces temperature；
Step 6. in carbonation reactor, remove CO2After combustion gas continue to be fed into decompressor (5) interior expansion work, drive step Compressor A (17), compressor B (19), compressor C (21) mentioned in five compress CO2Air-flow；After finishing merit in decompressor Combustion gas send into waste heat boiler (6) and carry out waste heat recovery, add hot steam, heat exchanger A is sent in combustion gas after waste heat boiler (7) in, condensed except water after, heat exchanger A outlet can obtain the N of high concentration2；
Step 7. the steam part that waste heat boiler produces enters heat exchanger B (9) by one-way control valve A (8), through heat Heating as thermal source after exchanger B regulation temperature, remaining steam sends into absorption system by one-way control valve B (10) Cold group (11), provides heat for working medium regeneration.
A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system the most according to claim 12Method for catching, its feature Being, gas turbine mentioned in step one or internal combustion engine can replace with other equipment with identical effect, and not only It is confined to gas turbine and internal combustion engine both forms.
A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system the most according to claim 12Method for catching, its feature Being, in step 2, calcium-base absorbing agent is CaCO3Or with CaO/Ca (OH)2/CaCO3Natural minerals or discarded for main component Thing or its mixture.
A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system the most according to claim 12Method for catching, its feature Being, in step 2 in carbonation reactor, reaction temperature is 650～700 DEG C, and reaction pressure is by entering in carbonation reactor The pressure of combustion gas determine, gaseous-pressure can be different and otherwise varied with gas turbine or internal combustion engine model, but usually above often Pressure.
A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system the most according to claim 12Method for catching, its feature Being, calcining the temperature required for calcium-base absorbing agent in step 3 is 900～950 DEG C, and reaction pressure is normal pressure.
A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system the most according to claim 12Method for catching, its feature Being, in step 3, air separator provides the pure oxygen in calcination reactor required for combustion of natural gas, can obtain height simultaneously The N of concentration2。
A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system the most according to claim 12Method for catching, its feature Being, in step 3, step 4, calcium-base absorbing agent circulation in carbonation reactor and calcination reactor can be passed through respectively Two-stage lock gas system realizes.
A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system the most according to claim 12Method for catching, its feature It is, for the CO of heat exchanger C outlet in step 52It is not limited to three stage compression, can be according to required CO2Pressure true Determine the progression of multi-stage compression unit.
A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system the most according to claim 12Method for catching, its feature It is, step 7 by controlling one-way control valve A and the aperture of one-way control valve B, thus can control cooling load and confession Warm load.
CN201610638507.9A 2016-08-05 2016-08-05 A kind of CO towards Gas Generator Set heating-cooling-power cogeneration system2Method for catching Active CN106215682B (en)

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CN107035444A (en) * 2017-04-21 2017-08-11 华电电力科学研究院 One kind coupling thermal power generation and CO2The zero carbon polygenerations systeme and method of conversion
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