CN106401749B - A kind of near-zero release coal generating system and method based on IGCC - Google Patents
A kind of near-zero release coal generating system and method based on IGCC Download PDFInfo
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- 239000003245 coal Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000002309 gasification Methods 0.000 claims abstract description 28
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 238000010248 power generation Methods 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 122
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 66
- 238000000926 separation method Methods 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 32
- 239000002918 waste heat Substances 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 30
- 230000015572 biosynthetic process Effects 0.000 claims description 27
- 238000003786 synthesis reaction Methods 0.000 claims description 27
- 238000002485 combustion reaction Methods 0.000 claims description 26
- 239000000567 combustion gas Substances 0.000 claims description 25
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 23
- 239000001257 hydrogen Substances 0.000 claims description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims description 22
- 238000006477 desulfuration reaction Methods 0.000 claims description 18
- 230000023556 desulfurization Effects 0.000 claims description 18
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 17
- 238000005261 decarburization Methods 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000446 fuel Substances 0.000 claims description 13
- 229910052717 sulfur Inorganic materials 0.000 claims description 10
- 239000011593 sulfur Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 239000005864 Sulphur Substances 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 230000032258 transport Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 6
- 239000003129 oil well Substances 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 239000013618 particulate matter Substances 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 3
- PVXVWWANJIWJOO-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-N-ethylpropan-2-amine Chemical compound CCNC(C)CC1=CC=C2OCOC2=C1 PVXVWWANJIWJOO-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- QMMZSJPSPRTHGB-UHFFFAOYSA-N MDEA Natural products CC(C)CCCCC=CCC=CC(O)=O QMMZSJPSPRTHGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005262 decarbonization Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000012716 precipitator Substances 0.000 claims description 2
- 238000010025 steaming Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000005532 trapping Effects 0.000 abstract description 3
- 238000010926 purge Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 239000005431 greenhouse gas Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229940062049 nitrogen 70 % Drugs 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G5/00—Storing fluids in natural or artificial cavities or chambers in the earth
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/164—Injecting CO2 or carbonated water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
-
- 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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
-
- 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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
-
- 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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/30—Adding water, steam or other fluids for influencing combustion, e.g. to obtain cleaner exhaust gases
-
- 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
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1643—Conversion of synthesis gas to energy
- C10J2300/165—Conversion of synthesis gas to energy integrated with a gas turbine or gas motor
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
- C10J2300/1675—Integration of gasification processes with another plant or parts within the plant with the production of electricity making use of a steam turbine
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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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
-
- 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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/70—Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
A kind of near-zero release coal generating system and method based on IGCC, the system can realize CO2 trappings before burning, and by the CO after trapping2It for the displacement of reservoir oil, purging and buries, takes full advantage of the heat of gasification furnace generation, the overall efficiency of system can be greatly improved, and realize the near-zero release of coal fired power generation；The present invention enables to the CO of system2Capture rate be more than 90%, generating efficiency be more than 40%, substantially increase the environmental protection characteristic of integrated gasification combined cycle for power generation system, while realizing CO2Seal up for safekeeping and recycling.
Description
Technical field
The invention belongs to technical field of power generation more particularly to a kind of near-zero release coal generating systems and side based on IGCC
Method.
Background technology
Using climate change as the Global Environmental Problems getting worse of core, have become the master for threatening human kind sustainable development
One of factor is wanted, cutting down greenhouse gas emission becomes the hot spot of current international community concern with mitigation of climate change.With the whole world
Greenhouse gas emission is increasingly paid close attention to,《The Kyoto Protocol》,《Bali's route map》Hold, further specify the whole world
CO2Emission reduction targets and timetable have pushed the development of global low-carbon economy.
Integral gasification combined circulation technology (Integrated Gasification Combined Cycle,
IGCC) it is the generation technology for being combined clean Coal Gasification Technology with efficient Gas-steam Combined Cycle, generating efficiency height
And room for promotion is big, it can be achieved that pollutant near-zero release, is one of the important development direction of high-efficiency cleaning coal-fired power generator set.
Integrated gasification combined cycle plants technology (IGCC) is the same as CO before burning2The use in conjunction of trapping can realize power generation system
The CO of system2Near-zero release, it is considered to be one of the important path of greenhouse gases depth emission reduction.Relative to other carbon trapping technique roads
Line, CO before burning2Gas pressure height, the CO handled needed for trapping2Concentration is high, impurity is few, is conducive to absorption process or other separation sides
Method is to CO2Removing, also can accordingly be reduced in the increment of investment, operating cost and energy consumption.CO before burning2Trapping technique is fully sharp
With CO in producing synthesis gas from coal2High concentration and high pressure so that CO2Trapping energy consumption significantly decline, in addition IGCC and phase
The hydrogen gas generation technology answered improves generating efficiency, and CO is realized under the premise of keeping the overall efficiency of power plant not reduce2Catch
Collect and seal up for safekeeping, is the important development direction of the following green low-carbon generation technology.
Invention content
The purpose of the present invention is to provide a kind of near-zero release coal generating system and method based on IGCC, based on whole
Body gasification combined-cycle system realizes CO before burning2Trapping, and take full advantage of the high―temperature nuclei generated in gasification furnace
The heat of gas is realized the cascade utilization of system thermal by waste heat boiler, enables to the CO of system2Capture rate be more than
90%, generating efficiency is more than 40%, substantially increases the environmental protection characteristic of integrated gasification combined cycle for power generation system, realizes simultaneously
CO2Seal up for safekeeping and recycling.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of near-zero release coal generating system based on IGCC, including air separation unit 1, the entrance of air separation unit 1 are passed through
Air, the oxygen outlet of air separation unit 1 connect the oxygen intake of gasification furnace 2, and the nitrogen outlet of air separation unit 1 connects nitrogen separation device 3；
Coal is added in the coal entrance of gasification furnace 2, and the steam inlet of gasification furnace 2 connects the steam (vapor) outlet of waste heat boiler 4, the synthesis gas of gasification furnace 2
The high-temperature gas entrance of outlet connection high-temperature heat-exchanging 5；The one outlet of nitrogen separation device 3 connects the low temperature gas of high-temperature heat-exchanging 5
Body entrance, another outlet connect nitrogen gas recovering apparatus 6；The high-temperature gas outlet of high-temperature heat-exchanging 5 connects the entrance of dust-extraction unit 7,
The cryogenic gas outlet of high-temperature heat-exchanging 5 connects combustion chamber 13；The entrance of the outlet water receiving vapour converting means 8 of dust-extraction unit 7；Steam
The steam inlet of converting means 8 connects the steam (vapor) outlet of waste heat boiler 4, and the gas vent of water-gas shift device 8 connects desulfurization and decarburization dress
Set 9 gas access；The H of desulfurization and decarburization device 92The outlets S meet sulfur recovery unit 11, the CO of desulfurization and decarburization device 92Gas vent
Compresses and liquefies separation device 10 is connect, the hydrogen-rich gas outlet of desulfurization and decarburization device 9 connects burning humidifier 12；The outlet of sulfur recovery unit 11
Output sulphur；The steam inlet of fuel humidifier 12 connects the steam (vapor) outlet of waste heat boiler 4, the hydrogen-rich gas outlet of fuel humidifier 12
Connect combustion chamber 13；The air intake of combustion chamber 13 connects the pressure-air outlet of compressor 14, and the gas outlet of combustion chamber 13 connects combustion
The fuel gas inlet of gas turbine 15；The entrance of compressor 14 is passed through air；The outlet of combustion gas turbine 15 connects the High Temperature Gas of waste heat boiler 4
Body entrance, combustion gas turbine 15 are connected with the first generator 16, and the first generator 16 exports electric energy；The steam of waste heat boiler 4 goes out
The steam inlet of mouth connection steam turbine 17, the feedwater outlet of the feed-water intake connection steam turbine 17 of waste heat boiler 4, waste heat pot
It is passed through water in the water inlet of stove 4；Steam turbine 17 is connected with the second generator 18,18 output electric energy of the second generator；Compression
The liquid CO of liquefying plant 102Outlet connection liquid CO219 liquid CO of transport device2Entrance, the liquid that compresses and liquefies separation device 10 generates
State CO2It is input to liquid CO2In transport device 19, it can be used for the displacement of reservoir oil and geological storage；Liquid CO2The outlet of transport device 19 connects
Meet CO2Displacement petroleum installation 20, CO2Gas displacing coal-bed device 21 and CO2Geological storage device 22；CO2Displacement petroleum installation 20
Output oil, CO221 output coal bed gas of gas displacing coal-bed device.
The air separation unit 1 by Deep Cooling Method by air oxygen and nitrogen detach, oxygen is transported to gasification
In stove 2, nitrogen is fed in nitrogen separation device 3.
Reaction generates synthesis gas in the gasification furnace 2, and it is H that synthesis gas, which mainly becomes,2、H2O、CO、CO2、CH4、H2S、COS
Deng.
The nitrogen separation device 3 can value detaches according to set proportion by the nitrogen being passed through, and nitrogen is passed through all the way
Into combustion chamber 13, in addition nitrogen is passed into nitrogen gas recovering apparatus 6 all the way.
The waste heat boiler 4 can recycle the heat of the high-temperature tail gas of combustion gas turbine 15, produce the steaming of high temperature and pressure
Vapour.
The high-temperature heat-exchanging 5, the cryogenic nitrogen that the high-temperature synthesis gas that gasification furnace 2 generates can be generated with air separation unit 1
Gas carries out heat exchange, improves the temperature of nitrogen, recycles the heat of synthesis gas.
The nitrogen gas recovering apparatus 6, is made of air accumulator, can store the nitrogen of the generation of air separation unit 1.
The dust-extraction unit 7 removes the particle in synthesis gas using sack cleaner or electric precipitator or ceramic filter
Object so that mine dust content is less than 100mg/Nm3。
The water-gas shift device 8 passes through water gas shift reation CO+H using resistant to sulfur water-gas shift technique2O=H2+CO2
CO in synthesis gas is transformed to H2So that CO ratios are less than 0.5% in exit gas, and wherein steam comes from waste heat boiler 4.
The desulfurization and decarburization device 9 washes method or MDEA methods using low-temp methanol, obtained hydrogen-rich gas, H in hydrogen-rich gas2S、
COS contents are less than 1ppm.
The compresses and liquefies separation device 10, can be by gaseous CO2It is converted into the CO of liquid2, CO2Concentration be higher than 99%.
The sulfur recovery unit 11, can be by H2S is decomposed into sulphur, recycles sulphur component therein.
The fuel humidifier 12, using steam mixing method, by some vapor caused by hydrogen-rich gas and waste heat boiler 4
It is mixed, improves H2Fuel wherein H2The content of O so that H2The molar content of O>5%.
The combustion chamber 13, hydrogen-rich gas, high temperature nitrogen and pressure-air burn wherein, generate high temperature combustion
Gas.
The compressor 14, combustion gas turbine 15 and the first generator 16, are installed on same axis, combustion gas turbine 15 exists
Rotation drives compressor 14 and the rotation of the first generator 16, compressor 14 to make the pressure of air under the impact of high pressure-temperature combustion gas
4Mpa or more is increased to by normal pressure, the first generator 16 then generates AC energy.
The steam turbine 17 and the second generator 18, are installed on same axis, the high temperature and pressure that waste heat boiler 4 generates
Steam impringement steam turbine 17 rotates, and steam turbine 17 drives the rotation of the second generator 18 to produce electricl energy.
The liquid CO2Transport device 19, to load liquid CO2The transport vehicle or cargo ship of storage tank.
The CO2Displacement petroleum installation 20, can be by CO2It is injected into oil field and improves oil recovery.
The CO2Gas displacing coal-bed device 21, can be by CO2It is injected into coal bed gas field, improves coal bed gas recovery ratio.
The CO2Geological storage device 22, by CO2It is injected into the oil field of exhaust gas, by CO2Permanently sealed up for safekeeping.
A kind of working method of near-zero release coal generating system based on IGCC described above, coal, steam and oxygen are logical
Enter gasification furnace 2 and generate synthesis gas, the temperature of synthesis gas is 1000 DEG C, and group is divided into CO ≈ 60%, H2≈ 30%, CO2≈ 7%, remaining
Group is divided into N2、H2S、COS、CH4Impurity gas；Synthesis gas first pass around high-temperature heat-exchanging 5 heat exchange, temperature be reduced to 200 DEG C hereinafter,
Then pass to dust-extraction unit 7 so that particulate matter component is less than 50mg/Nm3；It is passed into again in water-gas shift device 8 so that synthesis
CO in gas<0.5%, H2>60%；Then it is passed into desulfurization and decarburization device 9 so that H2S and COS concentration is less than 1ppm, capture
H2S recycles sulphur therein by sulfur recovery unit 11；The CO in synthesis gas is removed in desulfurization and decarburization device 9 simultaneously2So that CO2
Purity be more than 90%, then pass in compresses and liquefies separation device 10, pass through compress and liquefy obtain liquid CO2, can be used for
It the displacement of reservoir oil and seals up for safekeeping；H in the hydrogen-rich gas that desulfurization and decarburization device 9 generates2Content is more than 90%, and hydrogen-rich gas passes through fuel humidifier
12 so that H in gas2O molar contents>5%, it then passes into combustion chamber 13；The nitrogen that air separation unit 1 generates passes through nitrogen
70% nitrogen is passed into nitrogen gas recovering apparatus 6 by separator 3, remaining 30% is passed into high-temperature heat-exchanging 5 and is warming up to
It 500 DEG C, is then passed into combustion chamber 13；Compressor 14 rotates under the drive of combustion gas turbine 15, and the air of normal pressure is boosted
To 5MPa, then pass into combustion chamber 13；In combustion chamber 13, hydrogen-rich gas is mixed with high temperature nitrogen and then and pressure-air
It burns, generates high-temperature fuel gas, be then passed into combustion gas turbine 15, combustion gas turbine 15 is pushed to rotate, and drive the first hair
The rotation of motor 16 produces electricl energy；The tail gas that combustion gas turbine 15 is discharged 700 DEG C is passed into waste heat boiler 4, recycles heat therein,
And the temperature of tail gas is made to be less than 200 DEG C；The vapor (steam) temperature that waste heat boiler 4 generates high temperature and pressure is 600 DEG C, and pressure is
1.0MPa, in gasification furnace 2, water-gas shift device 8, fuel humidifier 12 and steam turbine 17；In steam turbine 17,
High temperature and high pressure steam pushes steam turbine 17 to rotate, and the rotation of the second generator 18 is driven to produce electricl energy；By steam turbine 17
Condensed water is fed in waste heat boiler 4 again afterwards；The liquid CO that compresses and liquefies separation device 10 generates2It is input to liquid CO2Transport device 19
In；Liquid CO2Transport device 19 is by liquid CO2It transports at oil field, coal bed gas field and exhaust gas oil well；Pass through CO2Displacement oil
Device 20 is by CO2It is injected into oil field so that oil recovery improves 10%；Pass through CO2Gas displacing coal-bed device 21 is by CO2Note
Enter into coal bed gas field so that coal bed gas recovery ratio improves 10%；Pass through CO2Geological storage device 22 is by CO2It is injected into discarded
In oil well, by CO2Permanently sealed up for safekeeping.
Compared to the prior art compared with the present invention has following advantage：
(1) part nitrogen that air separation unit 1 generates has recycled the heat of high-temperature synthesis gas by high-temperature heat-exchanging 5, can
The comprehensive electric generating efficiency of raising system.
(2) it is passed into after high temperature nitrogen is mixed with hydrogen-rich gas in combustion chamber 13, hydrogen can be improved in combustion chamber 13
Combustion stability.
(3) the liquid CO that system generates2, can be directly used for burying, displacement of reservoir oil purging.
Present invention CO before realizing burning based on Integrated Gasification Combined Cycle System2Trapping, and take full advantage of
The heat of the high-temperature synthesis gas generated in gasification furnace, by waste heat boiler realize system thermal cascade utilization, enable to be
The CO of system2Capture rate be more than 90%, generating efficiency be more than 40%, substantially increase integrated gasification combined cycle for power generation system
Environmental protection characteristic, while realizing CO2Seal up for safekeeping and recycling.
Description of the drawings
Fig. 1 is a kind of schematic diagram of the near-zero release coal generating system based on IGCC of the present invention.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings.
Case study on implementation
As shown in Figure 1, coal, steam and oxygen, which are passed through gasification furnace 2, generates synthesis gas, the temperature of synthesis gas is 1000 DEG C, group
It is divided into CO ≈ 60%, H2≈ 30%, CO2≈ 7%, remaining group are divided into N2、H2S、COS、CH4Equal impurity gas.Synthesis gas first passes around
High-temperature heat-exchanging 5 exchange heat, temperature be reduced to 200 DEG C hereinafter, then passing to dust-extraction unit 7 so that particulate matter component be less than 50mg/
Nm3；It is passed into again in water-gas shift device 8 so that CO in synthesis gas<0.1%, H2>60%；Then it is passed into desulfurization and decarburization dress
Set 9 so that H2S and COS concentration is less than 1ppm, the H of capture2S recycles sulphur therein by sulfur recovery unit 11.Simultaneously in desulfurization
The CO in synthesis gas is removed in decarbonization device 92So that CO2Purity be more than 90%, then pass in compresses and liquefies separation device 10,
The CO of liquid is obtained by compressing and liquefying2, can be used for the displacement of reservoir oil and seal up for safekeeping.H in the hydrogen-rich gas that desulfurization and decarburization device 9 generates2Contain
Amount is more than 90%, and hydrogen-rich gas passes through fuel humidifier 12 so that H in gas2O molar contents>5%, then pass to burning
In room 13.The nitrogen that air separation unit 1 generates passes through separator 3, and 70% nitrogen is passed into nitrogen gas recovering apparatus 6, remaining
30% is passed into high-temperature heat-exchanging 5 and is warming up to 500 DEG C, is then passed into combustion chamber 13.Compressor 14 is in combustion gas turbine 15
Drive under rotate, the air of normal pressure is boosted into 5MPa, is then passed into combustion chamber 13.In combustion chamber 13, hydrogen rich gas
Body is mixed with high temperature nitrogen and then is burnt with pressure-air, is generated high-temperature fuel gas, is then passed into combustion gas turbine 15, pushes away
Dynamic combustion gas turbine 15 rotates, and the rotation of the first generator 16 is driven to produce electricl energy.The tail gas that combustion gas turbine 15 is discharged 700 DEG C is passed through
Into waste heat boiler 4, heat therein is recycled, and the temperature of tail gas is made to be less than 200 DEG C.Waste heat boiler 4 generates high temperature and pressure
Vapor (steam) temperature be 600 DEG C, pressure 1.0MPa, can be used for gasification furnace 2, water-gas shift device 8, fuel humidifier 12 and steam
In steam turbine 17.In steam turbine 17, high temperature and high pressure steam pushes steam turbine 17 to rotate, and drives 18 turns of the second generator
It is dynamic to produce electricl energy.Condensed water is fed in waste heat boiler 4 again after steam turbine 17.The liquid that compresses and liquefies separation device 10 generates
CO2It is input to liquid CO2In transport device 19.Liquid CO2Transport device 19 is by liquid CO2Transport to oil field, coal bed gas field and
At exhaust gas oil well.Pass through CO2Displacement petroleum installation 20 is by CO2It is injected into oil field so that oil recovery improves 10%.Pass through
CO2Gas displacing coal-bed device 21 is by CO2It is injected into coal bed gas field so that coal bed gas recovery ratio improves 10%.Pass through CO2Geology
Mothballed plant 22 is by CO2It is injected into discarded oil well, by CO2Permanently sealed up for safekeeping.
Claims (9)
1. a kind of near-zero release coal generating system based on IGCC, it is characterised in that：Including air separation unit (1), air separation unit
(1) entrance is passed through air, and the oxygen outlet of air separation unit (1) connects the oxygen intake of gasification furnace (2), the nitrogen of air separation unit (1)
Gas outlet connects nitrogen separation device (3)；Coal is added in the coal entrance of gasification furnace (2), and the steam inlet of gasification furnace (2) connects waste heat boiler
(4) steam (vapor) outlet, the high-temperature gas entrance of the syngas outlet connection high-temperature heat-exchanging (5) of gasification furnace (2)；Nitrogen separation device
(3) one outlet connects the cryogenic gas entrance of high-temperature heat-exchanging (5), another outlet connects nitrogen gas recovering apparatus (6)；High temperature changes
The high-temperature gas outlet of hot device (5) connects the entrance of dust-extraction unit (7), and the cryogenic gas outlet of high-temperature heat-exchanging (5) connects combustion chamber
(13)；The entrance of the outlet water receiving vapour converting means (8) of dust-extraction unit (7)；The steam inlet of water-gas shift device (8) connects waste heat
The gas vent of the steam (vapor) outlet of boiler (4), water-gas shift device (8) connects the gas access of desulfurization and decarburization device (9)；Desulfurization is de-
The H of carbon device (9)2The outlets S meet sulfur recovery unit (11), the CO of desulfurization and decarburization device (9)2Gas vent connects compresses and liquefies separation device
(10), the hydrogen-rich gas outlet of desulfurization and decarburization device (9) connects burning humidifier (12)；The outlet output of sulfur recovery unit (11)
Sulphur；The steam inlet of fuel humidifier (12) connects the steam (vapor) outlet of waste heat boiler (4), and the hydrogen-rich gas of fuel humidifier (12) goes out
Mouth connects combustion chamber (13)；The air intake of combustion chamber (13) connects the pressure-air outlet of compressor (14), the combustion of combustion chamber (13)
Gas exports the fuel gas inlet for connecing combustion gas turbine (15)；The entrance of compressor (14) is passed through air；The outlet of combustion gas turbine (15) connects
The high-temperature gas entrance of waste heat boiler (4), combustion gas turbine (15) are connected with the first generator (16), and the first generator (16) is defeated
Go out electric energy；The steam inlet of the steam (vapor) outlet connection steam turbine (17) of waste heat boiler (4), the feed-water intake of waste heat boiler (4)
The feedwater outlet of steam turbine (17) is connected, water is passed through in the water inlet of waste heat boiler (4)；Steam turbine (17) and the second power generation
Machine (18) is connected, the second generator (18) output electric energy；The liquid CO of compresses and liquefies separation device (10)2Outlet connection liquid CO2Fortune
Defeated device (19) liquid CO2Entrance, the liquid CO that compresses and liquefies separation device (10) generates2It is input to liquid CO2Transport device (19)
In, it can be used for the displacement of reservoir oil and geological storage；Liquid CO2The outlet of transport device (19) connects CO2Displacement petroleum installation (20), CO2It drives
For coal seam device of air (21) and CO2Geological storage device (22)；CO2Displacement petroleum installation (20) output oil, CO2Displacement coal
Layer device of air (21) output coal bed gas.
2. a kind of near-zero release coal generating system based on IGCC according to claim 1, it is characterised in that：It is described to remove
Dirt device (7) removes the particulate matter in synthesis gas so that mine dust contains using sack cleaner or electric precipitator or ceramic filter
Amount is less than 100mg/Nm3。
3. a kind of near-zero release coal generating system based on IGCC according to claim 1, it is characterised in that：The water
Vapour converting means (8) passes through water gas shift reation CO+H using resistant to sulfur water-gas shift technique2O=H2+CO2It will be in synthesis gas
CO is transformed to H2So that CO ratios are less than 0.5% in exit gas, and wherein steam comes from waste heat boiler (4).
4. a kind of near-zero release coal generating system based on IGCC according to claim 1, it is characterised in that：It is described de-
Sulphur decarbonization device (9) washes method or MDEA methods using low-temp methanol, obtained hydrogen-rich gas, H in hydrogen-rich gas2S, COS contents are less than
1ppm。
5. a kind of near-zero release coal generating system based on IGCC according to claim 1, it is characterised in that：The pressure
Contracting liquefying plant (10), can be by gaseous CO2It is converted into the CO of liquid2, CO2Concentration be higher than 99%.
6. a kind of near-zero release coal generating system based on IGCC according to claim 1, it is characterised in that：The combustion
Material humidifier (12) is mixed hydrogen-rich gas with some vapor caused by waste heat boiler (4) using steam mixing method,
Improve H2Fuel wherein H2The content of O so that H2The molar content of O>5%.
7. a kind of near-zero release coal generating system based on IGCC according to claim 1, it is characterised in that：The pressure
Mechanism of qi (14), combustion gas turbine (15) and the first generator (16), are installed on same axis, and combustion gas turbine (15) is in high pressure height
Under the impact of warm combustion gas rotation drive compressor (14 and first generator (16) rotation, compressor (14) so that air pressure
4Mpa or more is increased to by normal pressure, the first generator (16) then generates AC energy.
8. a kind of near-zero release coal generating system based on IGCC according to claim 1, it is characterised in that：The steaming
Steam turbine (17) and the second generator (18), are installed on same axis, the high temperature and high pressure steam impact that waste heat boiler (4) generates
Steam turbine (17) rotates, and steam turbine (17) drives the second generator (18) to rotate and produces electricl energy.
9. a kind of working method of the near-zero release coal generating system based on IGCC described in claim 1, it is characterised in that：
Coal, steam and oxygen are passed through gasification furnace (2) and generate synthesis gas, and the temperature of synthesis gas is 1000 DEG C, and group is divided into CO ≈ 60%, H2≈
30%, CO2≈ 7%, remaining group are divided into N2、H2S、COS、CH4Impurity gas；Synthesis gas first passes around high-temperature heat-exchanging (5) heat exchange,
Temperature be reduced to 200 DEG C hereinafter, then passing to dust-extraction unit (7) so that particulate matter component be less than 50mg/Nm3；It is passed into water again
In vapour converting means (8) so that CO in synthesis gas<0.5%, H2>60%；Then it is passed into desulfurization and decarburization device (9) so that H2S
It is less than 1ppm, the H of capture with COS concentration2S recycles sulphur therein by sulfur recovery unit (11)；Simultaneously in desulfurization and decarburization device
(9) CO in removing synthesis gas2So that CO2Purity be more than 90%, then pass in compresses and liquefies separation device (10), pass through
Compression and liquefaction obtain the CO of liquid2, can be used for the displacement of reservoir oil and seal up for safekeeping；H in the hydrogen-rich gas that desulfurization and decarburization device (9) generates2Content
More than 90%, hydrogen-rich gas passes through fuel humidifier (12) so that H in gas2O molar contents>5%, then pass to burning
In room (13)；The nitrogen that air separation unit (1) generates passes through nitrogen separation device (3), and 70% nitrogen is passed into nitrogen recycling dress
It sets in (6), remaining 30% is passed into high-temperature heat-exchanging (5) and is warming up to 500 DEG C, is then passed into combustion chamber (13)；It calms the anger
Machine (14) rotates under the drive of combustion gas turbine (15), and the air of normal pressure is boosted to 5MPa, then passes to combustion chamber (13)
In；In combustion chamber (13), hydrogen-rich gas is mixed with high temperature nitrogen and then is burnt with pressure-air, generates high-temperature fuel gas,
Then it is passed into combustion gas turbine (15), combustion gas turbine (15) is pushed to rotate, and drive the first generator (16) to rotate and generate electricity
Energy；The tail gas that combustion gas turbine (15) is discharged 700 DEG C is passed into waste heat boiler (4), recycles heat therein, and make tail gas
Temperature is less than 200 DEG C；The vapor (steam) temperature that waste heat boiler (4) generates high temperature and pressure is 600 DEG C, pressure 1.0MPa, for gasifying
In stove (2), water-gas shift device (8), fuel humidifier (12) and steam turbine (17)；In steam turbine (17), high temperature
High steam pushes steam turbine (17) to rotate, and drives the second generator (18) to rotate and produce electricl energy；By steam turbine
(17) condensed water is fed again in waste heat boiler (4) afterwards；The liquid CO that compresses and liquefies separation device (10) generates2It is input to liquid CO2Transport
In device (19)；Liquid CO2Transport device (19) is by liquid CO2It transports at oil field, coal bed gas field and exhaust gas oil well；Pass through
CO2Displacement petroleum installation (20) is by CO2It is injected into oil field so that oil recovery improves 10%；Pass through CO2It is gas displacing coal-bed
Device (21) is by CO2It is injected into coal bed gas field so that coal bed gas recovery ratio improves 10%；Pass through CO2Geological storage device (22)
By CO2It is injected into discarded oil well, by CO2Permanently sealed up for safekeeping.
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| CN109609199B (en) * | 2019-01-15 | 2020-07-21 | 中国石油大学(华东) | Coal gasification combined heat and power technology with zero carbon emission |
| CN111237058A (en) * | 2020-02-27 | 2020-06-05 | 中国华能集团清洁能源技术研究院有限公司 | IGCC power generation system and method for humidifying fuel gas by using low-temperature waste heat of flue gas |
| CN111810259A (en) * | 2020-05-26 | 2020-10-23 | 新奥科技发展有限公司 | Method and system for utilizing carbon dioxide |
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