CN113565681A - Coupling system using electric heating gasification furnace and multi-energy conversion method thereof - Google Patents
Coupling system using electric heating gasification furnace and multi-energy conversion method thereof Download PDFInfo
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- CN113565681A CN113565681A CN202110907641.5A CN202110907641A CN113565681A CN 113565681 A CN113565681 A CN 113565681A CN 202110907641 A CN202110907641 A CN 202110907641A CN 113565681 A CN113565681 A CN 113565681A
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- gas
- gasification furnace
- electric heating
- power generation
- hydrogen
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- 238000002309 gasification Methods 0.000 title claims abstract description 81
- 238000005485 electric heating Methods 0.000 title claims abstract description 69
- 238000010168 coupling process Methods 0.000 title claims abstract description 26
- 230000008878 coupling Effects 0.000 title claims abstract description 25
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 93
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 76
- 239000001257 hydrogen Substances 0.000 claims abstract description 76
- 238000010248 power generation Methods 0.000 claims abstract description 68
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000002918 waste heat Substances 0.000 claims abstract description 40
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003345 natural gas Substances 0.000 claims abstract description 13
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical group [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 11
- 239000002737 fuel gas Substances 0.000 claims abstract description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 88
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 46
- 230000003647 oxidation Effects 0.000 claims description 31
- 238000007254 oxidation reaction Methods 0.000 claims description 31
- 239000000571 coke Substances 0.000 claims description 29
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 24
- 239000001569 carbon dioxide Substances 0.000 claims description 23
- 230000009467 reduction Effects 0.000 claims description 23
- 238000001035 drying Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000002028 Biomass Substances 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 11
- 238000011049 filling Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000003786 synthesis reaction Methods 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000005336 cracking Methods 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 238000000197 pyrolysis Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 230000002194 synthesizing effect Effects 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims 1
- 150000002431 hydrogen Chemical class 0.000 abstract description 10
- 229910052799 carbon Inorganic materials 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 230000005611 electricity Effects 0.000 description 6
- 238000004134 energy conservation Methods 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005261 decarburization Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
- C01B3/12—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
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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
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
- F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/008—Systems for storing electric energy using hydrogen as energy vector
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/06—Integration with other chemical processes
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/085—Methods of heating the process for making hydrogen or synthesis gas by electric heating
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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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
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- Y02E10/76—Power conversion electric or electronic aspects
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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
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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
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- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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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
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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
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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
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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
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Abstract
The invention relates to a coupling system using an electric heating gasification furnace and a multi-energy conversion method thereof, belonging to the field of comprehensive utilization of hydrogen energy, aiming at the problem that the prior art can not reasonably integrate and utilize clean energy such as hydrogen energy, wind energy, solar energy and the like for domestic use, the technical scheme is as follows: a coupling system using an electrically heated gasification furnace, comprising: the system comprises a power grid, an electric heating gasification furnace, a high-temperature steam heat pump, a gas power generation system, a waste heat collector, a heat exchanger, a lithium bromide unit and a natural gas pipe network, wherein the electric heating gasification furnace generates hydrogen-rich synthetic gas through the power grid, the gas power generation system generates power by using the hydrogen-rich synthetic gas, the waste heat collector collects waste heat of the gas power generation system, and the lithium bromide unit and the heat exchanger are respectively connected with the waste heat collector to supply cold and heat to users. The electric heating gasification furnace in the system utilizes surplus electric energy provided by wind power generation and/or light energy power generation to prepare hydrogen, and the fuel gas power generation system can utilize the hydrogen in various forms to generate power, so that the problems in the prior art are effectively solved.
Description
Technical Field
The invention belongs to the field of comprehensive utilization of hydrogen energy, and particularly relates to a coupling system using an electric heating gasification furnace and a multi-energy conversion method thereof.
Background
The hydrogen energy is a high-energy-density pollution-free energy carrier, can effectively couple the traditional fossil energy and the renewable energy, promotes energy complementation and collaborative optimization, and has important significance for constructing a clean, low-carbon, safe and efficient energy system. Hydrogen can be prepared in a plurality of ways, two ways are commonly used, one is prepared by electrolytic reaction, and the other is prepared by high-temperature reaction. The electrolysis reaction has large power consumption, and can not reasonably utilize waste materials and greenhouse gases as production raw materials, so the production cost is higher.
Wind power generation and solar power generation are also examples of reasonably utilizing clean energy, but need to be integrated and utilized in a reasonable mode. How to reasonably utilize and integrate clean energy to meet the use of users is an urgent problem to be solved, and therefore, a coupling system and a multi-energy conversion method are needed to be provided, and the clean energy can be reasonably integrated and utilized to provide living resources such as air, heat, electricity and the like for the users.
Disclosure of Invention
Aiming at the problem that clean energy such as hydrogen energy, wind energy, solar energy and the like cannot be reasonably integrated and utilized for domestic use in the prior art, the invention provides a coupling system using an electric heating gasification furnace and a multi-energy conversion method thereof, wherein the electric heating gasification furnace is adopted to prepare waste into hydrogen-rich synthesis gas; the fluctuation and the intermittence of the new energy are stabilized, the utilization rate of the new energy is improved, and the peak clipping and valley filling of a power grid are assisted; and the requirements of users on various energy sources such as electricity, heat, cold, gas and the like are met in a multi-energy combined supply mode.
The technical scheme adopted by the invention is as follows: a coupling system using an electrically heated gasification furnace, comprising:
the power grid provides surplus electric energy through a photovoltaic power generation power supply and/or a wind power generation power supply;
the electric heating gasification furnace is powered by the power grid to generate hydrogen-rich mixed gas;
the high-temperature steam heat pump is powered by the power grid, is connected with the electric heating gasification furnace and provides steam for the electric heating gasification furnace;
the fuel gas power generation system is connected with the electric heating gasification furnace and the power grid, generates power by using the hydrogen-rich mixed gas and transmits the generated electric energy to the power grid;
the waste heat collector is connected with the gas power generation system and is used for collecting waste heat of the gas power generation system;
the heat exchanger is connected with the waste heat collector and used for supplying heat to a user;
the lithium bromide unit is connected with the waste heat collector and is used for supplying cold to a user;
the natural gas pipe network is connected with the electric heating gasification furnace so as to supply gas to users;
the electric heating gasification furnace is provided with a shell with a filling opening at the top, the shell is provided with resistance wires so as to control temperature in a segmented manner, and the filling material is preferably selected from biomass or garbage so as to realize waste recycling; the shell is internally provided with the following components in sequence from top to bottom:
the drying layer is heated through the resistance wire radiation to control the temperature, so that the filler entering from the filler opening is dried to form a drying material;
the pyrolysis layer is heated and controlled in temperature through the radiation of the resistance wire, so that dry materials sinking under the action of gravity are subjected to pyrolysis reaction to form coke;
the first oxidation layer is communicated with a first air inlet, and the first air inlet is communicated with a hot air source so that hot air enters the first oxidation layer;
the second air inlet and the air outlet are communicated with the reduction layer, and the second air inlet is communicated with the high-temperature steam heat pump to enable high-temperature steam to enter the reduction layer;
a second oxide layer;
the third air inlet is communicated with a hot air source, so that hot air enters the ash layer and the second oxidation layer;
the coke falls under the action of gravity and fills the first oxidation layer, the reduction layer and the second oxidation layer, a reducing agent is arranged in the reduction layer, the hot air reacts with the coke at the first oxidation layer and the second oxidation layer to form carbon dioxide, and the carbon dioxide, the high-temperature steam, the coke and the catalyst form hydrogen-rich synthetic gas at the reduction layer; the reduction layer is communicated with a gas outlet, the hydrogen-rich synthetic gas is discharged from the gas outlet, and the gas outlet is communicated with the gas power generation system to provide hydrogen-rich mixed gas for the gas power generation system.
The electric heating gasification furnace in the system utilizes surplus electric energy provided by wind power generation and/or light energy power generation to prepare hydrogen, the fuel gas power generation system can utilize the hydrogen in multiple forms to generate power, surplus electric power such as wind power and/or solar power can be absorbed, the fluctuation of new energy is stabilized, the utilization rate of the new energy is intermittently improved, the peak load shifting of a power grid is assisted, the demand response capability of the power grid is improved, and the demand of a user on multiple energy sources such as electricity, hydrogen, heat and gas is met in a multi-energy combined supply mode.
The electric heating gasifier in this application is multistage formula gasifier, and the hot-air reacts in getting into the casing from first air inlet and third air inlet respectively and generates carbon dioxide, reduces in reduction layer department with vapor and obtains rich hydrogen synthetic gas, and the reaction that wherein takes place includes: the carbon dioxide reacts with carbon to generate carbon monoxide, the carbon reacts with water to generate carbon dioxide and hydrogen, and the carbon monoxide reacts with the water to generate the carbon dioxide and the hydrogen; the electric heating gasification furnace is high in efficiency and convenient to achieve the effects of energy conservation and low carbon.
Furthermore, the first air inlet and the third air inlet are arranged on the same side of the second air inlet, and the air outlet is arranged opposite to the second air inlet. The arrangement is convenient for the hot air to fully contact and fully react with the coke, the high-temperature steam can fully react with the coke, and the hydrogen ratio in the hydrogen-rich synthetic gas obtained at the gas outlet is higher.
Further, the coupling system further comprises a methanol synthesizer, the methanol synthesizer is connected with the electric heating gasification furnace and used for synthesizing methanol, and the waste heat collector is connected with the methanol synthesizer so as to collect waste heat of the methanol synthesizer. The methanol synthesizer can further convert hydrogen energy and carbon dioxide into zero-carbon fuels such as methanol and the like, thereby realizing the high-efficiency conversion of the hydrogen energy based on carbon capture and promoting the decarburization in the fields of industry, traffic and the like.
Further, the photovoltaic power generation power supply and/or the wind power generation power supply are connected with the power grid through a transformer so as to be used.
Further, the power generation system is connected with the electric heating gasification furnace through a PSA purifier and a hydrogen storage tank so as to purify and store hydrogen.
Further, the power generation system includes a fuel cell, a gas turbine, and an internal combustion engine, which all generate power by consuming hydrogen generated by the electrically heated gasification furnace.
Furthermore, the heat exchanger is a two-stage heat exchanger, the first stage of the heat exchanger exchanges heat with cold water through the tail gas of the hybrid condenser, the second stage of the heat exchanger exchanges heat with hot water produced by the first stage through the plate heat exchanger, and finally the hot water coming out of the plate heat exchanger is used for meeting the heat demand of a user, so that the purposes of high efficiency and energy conservation are achieved.
The multi-energy conversion method for hydrogen-electricity-heat gas coupling by the coupling system comprises the following steps:
step 1, connecting a photovoltaic power generation power supply and/or a wind power generation power supply to a power grid to provide surplus electric energy for the power grid;
step 2, connecting the high-temperature steam heat pump and the electric heating gasification furnace with a power grid, and simultaneously connecting the high-temperature steam heat pump and the electric heating gasification furnace, so that the high-temperature steam heat pump generates steam with at least 100 ℃ and the steam is introduced into the electric heating gasification furnace to promote the electric heating gasification furnace to generate hydrogen-rich synthesis gas:
step 2.1, adding biomass/garbage from a filling opening of the electric heating gasification furnace;
step 2.2, drying the biomass/garbage at a drying layer in sequence, cracking the biomass/garbage at a cracking layer to form coke, and allowing the coke to fall under the action of gravity and fill a first oxidation layer, a reduction layer and a second oxidation layer;
step 2.3, introducing hot air into the first oxidation layer and the ash layer of the electric heating gasification furnace to enable coke to react to generate carbon dioxide;
step 2.4, introducing high-temperature steam into the electric heating gasification furnace to enable the high-temperature steam, carbon dioxide, coke and a reducing agent to react to generate hydrogen-rich synthesis gas;
step 3, connecting a gas power generation system with the electric heating gasification furnace and the power grid, so that the gas power generation system generates power by using the hydrogen-rich synthetic gas and transmits the generated electric energy to the power grid;
step 4, collecting the waste heat of the gas power generation system by using a waste heat collector;
step 5, connecting the heat exchanger and the lithium bromide unit with the waste heat collector so that the heat exchanger and the lithium bromide unit can utilize waste heat in the waste heat collector to supply heat and cold for users;
and 6, connecting the electric heating gasification furnace with a natural gas pipe network, so that the hydrogen-rich synthetic gas enters the natural gas pipe network and supplies gas to the natural gas pipe network.
The method is simple to operate, is beneficial to realizing energy conservation, low carbon and multi-energy continuous supply, and realizes the multi-element efficient clean utilization of energy.
The invention has the following beneficial effects:
1. the electric heating gasification furnace is a multi-section gasification furnace, so that the efficiency of hydrogen production is high, and the energy-saving and low-carbon effects are conveniently achieved;
2. the electric heating gasification furnace in the coupling system utilizes surplus electric energy provided by wind power generation and/or light energy power generation to prepare hydrogen, the fuel gas power generation system can utilize the hydrogen in various forms to generate power, surplus electric power such as wind power and/or solar power can be absorbed, the fluctuation of new energy is stabilized, the utilization rate of the new energy is intermittently improved, the peak load shifting of a power grid is assisted, the demand response capability of the power grid is improved, and the demand of a user on various energy sources such as electricity, hydrogen, heat and gas is met in a multi-energy combined supply mode;
3. the coupling method is simple to operate and is beneficial to realizing energy conservation, low carbon and multi-energy continuous supply.
Drawings
FIG. 1 is a schematic configuration diagram of a coupling system using an electrically heated gasification furnace;
fig. 2 is a schematic structural view of an electrically heated gasification furnace.
In the figure: 1-a photovoltaic power generation power supply; 2-a wind power generation power supply; 3-high temperature steam heat pump; 4-electrically heating the gasification furnace; 41-a filling opening; 42-drying layer; 43-a cleavage layer; 44-a first oxide layer; 45-reduction layer; 46-a second oxide layer; 47-ash layer; 48-first air inlet; 49-a second air inlet; 410-a third air inlet; 411-air outlet; 5-PSA purifier; 6-a hydrogen storage tank; 7-a fuel cell; 8-a gas turbine; 9-internal combustion engine; a 10-methanol synthesizer; 11-a waste heat collector; 12-a heat exchanger; 13-lithium bromide unit.
Detailed Description
The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Example 1
The coupling system using the electrically heated gasification furnace of the present embodiment, as shown in fig. 1, includes:
the power grid provides surplus electric energy through the photovoltaic power generation power supply 1 and the wind power generation power supply 2;
the electric heating gasification furnace 4 is powered by the power grid to generate hydrogen-rich mixed gas;
the high-temperature steam heat pump 3 is powered by the power grid, is connected with the electric heating gasification furnace 4 and provides steam for the electric heating gasification furnace 4;
the gas power generation system is connected with the electric heating gasification furnace 4 and the power grid, generates power by using the hydrogen-rich mixed gas, and transmits the generated electric energy to the power grid;
the waste heat collector 11 is connected with the gas power generation system and is used for collecting waste heat of the gas power generation system;
the heat exchanger 12 is connected with the waste heat collector 11 and used for supplying heat to a user;
the lithium bromide unit 13 is connected with the waste heat collector 11 and used for supplying cold to a user;
the natural gas pipe network is connected with the electric heating gasification furnace 4 so as to supply gas to users;
as shown in fig. 2, the electric heating gasification furnace 4 has a housing with a filling opening 41 at the top, and resistance wires are arranged on the housing for segmented temperature control, and the filling material in the invention is preferably biomass or garbage, so as to realize waste recycling; the shell is internally provided with the following components in sequence from top to bottom:
the drying layer 42 is heated by the resistance wire radiation to control the temperature, so that the filler entering from the filler opening 41 is dried to form a drying material;
the cracking layer 43 is heated and controlled in temperature through the radiation of the resistance wires, so that dry materials sinking under the action of gravity are subjected to pyrolysis reaction to form coke;
a first oxidation layer 44, a first air inlet 48 in communication with the first oxidation layer 44, the first air inlet 48 in communication with a source of hot air such that the hot air enters the first oxidation layer 44;
the reduction layer 45 is communicated with the air outlet 411 and a second air inlet 49, and the second air inlet 49 is communicated with the high-temperature steam heat pump 3 to enable high-temperature steam to enter the reduction layer 45; the reducing agent used in this example was Ni/ZrO2A catalyst;
a second oxide layer 46;
the ash layer 47 is communicated with the third air inlet 410, and the third air inlet 410 is communicated with a hot air source, so that hot air enters the ash layer 47 and the second oxidation layer 46;
the coke falls under the action of gravity and fills the first oxidation layer 44, the reduction layer 45 and the second oxidation layer 46, a reducing agent is arranged in the reduction layer 45, the hot air reacts with the coke at the first oxidation layer 44 and the second oxidation layer 46 to form carbon dioxide, and the carbon dioxide, the high-temperature steam, the coke and the catalyst form hydrogen-rich synthesis gas at the reduction layer 45; the reduction layer 45 is communicated with an air outlet 411, the hydrogen-rich synthetic gas is discharged from the air outlet 411, and the air outlet 411 is communicated with the gas power generation system to provide hydrogen-rich mixed gas for the gas power generation system.
The electric heating gasification furnace 4 in the system utilizes surplus electric energy provided by wind power generation and light energy power generation to prepare hydrogen, the fuel gas power generation system can utilize the hydrogen in multiple forms to generate power, surplus electric power such as wind energy and/or solar energy can be absorbed, the fluctuation of new energy is stabilized, the utilization rate of the new energy is intermittently improved, the peak load shifting of a power grid is facilitated, the demand response capability of the power grid is improved, and the demand of a user on multiple energy sources such as electricity, hydrogen, heat and gas is met in a multi-energy combined supply mode.
The electric heating gasification furnace 4 in the application is a multi-section gasification furnace, hot air enters the shell from the first air inlet 48 and the third air inlet 410 respectively to react to generate carbon dioxide, and the carbon dioxide and steam are reduced together at the reduction layer 45 to obtain hydrogen-rich synthetic gas, wherein the generated reaction comprises: the carbon dioxide reacts with carbon to generate carbon monoxide, the carbon reacts with water to generate carbon dioxide and hydrogen, and the carbon monoxide reacts with the water to generate the carbon dioxide and the hydrogen; the electric heating gasification furnace 4 has high efficiency and is convenient to achieve the effects of energy conservation and low carbon.
The first air inlet 48 and the third air inlet 410 are arranged on the same side of the second air inlet 49, and the air outlet 411 is arranged opposite to the second air inlet 49. The arrangement is such that the hot air is fully contacted with the coke and fully reacts with the coke, the high-temperature steam can fully react with the coke, and the hydrogen ratio of the hydrogen-rich synthetic gas obtained at the gas outlet 411 is higher.
The coupling system further comprises a methanol synthesizer 10, the methanol synthesizer 10 is connected with the electric heating gasification furnace 4 and used for synthesizing methanol, and the waste heat collector 11 is connected with the methanol synthesizer 10 so as to collect waste heat of the methanol synthesizer 10. The methanol synthesizer 10 can further convert hydrogen energy and carbon dioxide into zero-carbon fuels such as methanol and the like, thereby realizing high-efficiency conversion of the hydrogen energy based on carbon capture and promoting decarburization in the fields of industry, traffic and the like.
In this embodiment, the methanol synthesizer 10 uses Cu/ZnO/Al2O3Copper-based catalyst and the like, the methanol is prepared under the parameters of 288 ℃ and 76bar, and the methanol synthesizer 10 directionally regulates and controls CO2The reaction path with the hydrogen source improves the conversion efficiency, realizes the preparation of the zero-carbon fuel methanol, and can be directly used for deep decarburization in the fields of the prior energy system, the power-assisted industry, the traffic and the like.
The photovoltaic power generation source 1 and/or the wind power generation source 2 are connected with the power grid through transformers for use.
The power generation system is connected with the electric heating gasification furnace 4 through a PSA purifier 5 and a hydrogen storage tank 6 so as to purify and store hydrogen.
The power generation system includes a fuel cell 7, a gas turbine 8, and an internal combustion engine 9, and the fuel cell 7, the gas turbine 8, and the internal combustion engine 9 each generate power by consuming hydrogen generated by the electrically heated gasification furnace 4.
The heat exchanger 12 is a two-stage heat exchanger 12, the first stage of the heat exchanger exchanges heat between tail gas and cold water through a hybrid condenser, the second stage of the heat exchanger exchanges heat with hot water produced by the first stage through the plate heat exchanger 12, and finally the hot water coming out of the plate heat exchanger 12 is used for meeting the heat demand of a user, so that the purposes of high efficiency and energy saving are achieved.
Example 2
The multi-energy conversion method for coupling hydrogen, electricity and hot gas by using the coupling system of the electric heating gasification furnace comprises the following steps:
step 1, connecting a photovoltaic power generation power supply 1 and/or a wind power generation power supply 2 to a power grid to provide surplus electric energy for the power grid;
step 2, connecting the high-temperature steam heat pump 3 and the electric heating gasification furnace 4 with a power grid, and simultaneously connecting the high-temperature steam heat pump 3 and the electric heating gasification furnace 4, so that the high-temperature steam heat pump 3 generates at least 100 ℃ steam and leads the steam into the electric heating gasification furnace 4 to promote the electric heating gasification furnace 4 to generate hydrogen-rich synthesis gas:
step 2.1, adding biomass/garbage from a filling opening 41 of the electric heating gasification furnace 4;
step 2.2, drying the biomass/garbage at a drying layer 42 in sequence, cracking the biomass/garbage at a cracking layer 43 to form coke, and allowing the coke to fall under the action of gravity and fill a first oxidation layer 44, a reduction layer 45 and a second oxidation layer 46;
step 2.3, introducing hot air into the first oxidation layer 44 and the ash layer 47 of the electric heating gasification furnace 4 to enable coke to react to generate carbon dioxide;
step 2.4, introducing high-temperature steam into the electric heating gasification furnace 4, so that the high-temperature steam, carbon dioxide, coke and a reducing agent react to generate hydrogen-rich synthesis gas;
step 3, connecting a gas power generation system with the electric heating gasification furnace 4 and the power grid, so that the gas power generation system generates power by using the hydrogen-rich synthetic gas and transmits the generated electric energy to the power grid, wherein the power generation system comprises a fuel cell 7, a gas turbine 8 and an internal combustion engine 9, and the fuel cell 7, the gas turbine 8 and the internal combustion engine 9 all generate power by consuming the hydrogen generated by the electric heating gasification furnace 4; meanwhile, a methanol synthesizer 10 is connected with the electric heating gasification furnace 4 and is used for synthesizing methanol;
step 4, collecting the waste heat of the fuel gas power generation system and the methanol synthesizer 10 by using a waste heat collector 11; the waste heat collector 11 is respectively connected with the fuel cell 7, the gas turbine 8, the internal combustion engine 9 and the methanol synthesizer 10 so as to collect the waste heat of the methanol synthesizer 10;
in this embodiment, the methanol synthesizer 10 uses Cu/ZnO/Al2O3Copper-based catalyst, etc., and preparing methanol at 288 ℃ and 76 bar;
step 5, connecting the heat exchanger 12 and the lithium bromide unit 13 with the waste heat collector 11, so that the heat exchanger 12 and the lithium bromide unit 13 can utilize waste heat in the waste heat collector 11 to supply heat and cold for users;
and 6, connecting the electric heating gasification furnace 4 with a natural gas pipe network, so that the hydrogen-rich synthetic gas enters the natural gas pipe network and supplies gas to the natural gas pipe network.
The method is simple to operate, is beneficial to realizing energy conservation, low carbon and multi-energy continuous supply, and realizes the multi-element efficient clean utilization of energy.
While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art will appreciate that the invention includes, but is not limited to, the accompanying drawings and the description of the embodiments above. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (8)
1. A coupling system using an electrically heated gasifier, comprising:
the power grid provides surplus electric energy through a photovoltaic power generation power supply and/or a wind power generation power supply;
the electric heating gasification furnace is powered by the power grid to generate hydrogen-rich mixed gas;
the high-temperature steam heat pump is powered by the power grid, is connected with the electric heating gasification furnace and provides steam for the electric heating gasification furnace;
the fuel gas power generation system is connected with the electric heating gasification furnace and the power grid, generates power by using the hydrogen-rich mixed gas and transmits the generated electric energy to the power grid;
the waste heat collector is connected with the gas power generation system and is used for collecting waste heat of the gas power generation system;
the heat exchanger is connected with the waste heat collector and used for supplying heat to a user;
the lithium bromide unit is connected with the waste heat collector and is used for supplying cold to a user;
the natural gas pipe network is connected with the electric heating gasification furnace so as to supply gas to users;
the electric heating gasification furnace is provided with a shell with a filling opening at the top, and resistance wires are arranged on the shell so as to facilitate segmented temperature control; the shell is internally provided with the following components in sequence from top to bottom:
the drying layer is heated through the resistance wire radiation to control the temperature, so that the filler entering from the filler opening is dried to form a drying material;
the pyrolysis layer is heated and controlled in temperature through the radiation of the resistance wire, so that dry materials sinking under the action of gravity are subjected to pyrolysis reaction to form coke;
the first oxidation layer is communicated with a first air inlet, and the first air inlet is communicated with a hot air source so that hot air enters the first oxidation layer;
the second air inlet and the air outlet are communicated with the reduction layer, and the second air inlet is communicated with the high-temperature steam heat pump to enable high-temperature steam to enter the reduction layer;
a second oxide layer;
the third air inlet is communicated with a hot air source, so that hot air enters the ash layer and the second oxidation layer;
the coke falls under the action of gravity and fills the first oxidation layer, the reduction layer and the second oxidation layer, a reducing agent is arranged in the reduction layer, the hot air reacts with the coke at the first oxidation layer and the second oxidation layer to form carbon dioxide, and the carbon dioxide, the high-temperature steam, the coke and the catalyst form hydrogen-rich synthetic gas at the reduction layer; the reduction layer is communicated with a gas outlet, the hydrogen-rich synthetic gas is discharged from the gas outlet, and the gas outlet is communicated with the gas power generation system to provide hydrogen-rich mixed gas for the gas power generation system.
2. The coupling system using an electrically heated gasification furnace according to claim 1, wherein the first and third gas inlets are disposed at the same side as the second gas inlet, and the gas outlet is disposed opposite to the second gas inlet.
3. The coupling system using the electrically heated gasifier according to claim 1, further comprising a methanol synthesizer connected to the electrically heated gasifier for synthesizing methanol, wherein the waste heat collector is connected to the methanol synthesizer so as to collect waste heat of the methanol synthesizer.
4. The coupling system using the electrically heated gasification furnace according to claim 1, wherein the photovoltaic power generation source and/or the wind power generation source are connected to the grid through a transformer for use.
5. The coupling system using an electrically heated gasifier according to claim 1, wherein the power generation system is connected to the electrically heated gasifier through a PSA purifier and a hydrogen storage tank for hydrogen purification and storage.
6. The coupling system using an electrically heated gasification furnace according to claim 1, wherein the power generation system comprises a fuel cell, a gas turbine, and an internal combustion engine, each of which generates power by consuming hydrogen generated by the electrically heated hydrogen generation furnace.
7. The coupling system of claim 1, wherein the heat exchanger is a two-stage heat exchanger, a first stage of the two-stage heat exchanger exchanges heat between the tail gas and cold water through a hybrid condenser, and a second stage of the two-stage heat exchanger exchanges heat with hot water produced by the first stage through a plate heat exchanger.
8. A method of multipotent conversion using the coupling system of any of claims 1-7, comprising:
step 1, connecting a photovoltaic power generation power supply and/or a wind power generation power supply to a power grid to provide surplus electric energy for the power grid;
step 2, connecting the high-temperature steam heat pump and the electric heating gasification furnace with a power grid, and simultaneously connecting the high-temperature steam heat pump and the electric heating gasification furnace, so that the high-temperature steam heat pump generates steam with at least 100 ℃ and the steam is introduced into the electric heating gasification furnace to promote the electric heating gasification furnace to generate hydrogen-rich synthesis gas:
step 2.1, adding biomass/garbage from a filling opening of the electric heating gasification furnace;
step 2.2, drying the biomass/garbage at a drying layer in sequence, cracking the biomass/garbage at a cracking layer to form coke, and allowing the coke to fall under the action of gravity and fill a first oxidation layer, a reduction layer and a second oxidation layer;
step 2.3, introducing hot air into the first oxidation layer and the ash layer of the electric heating gasification furnace to enable coke to react to generate carbon dioxide;
step 2.4, introducing high-temperature steam into the electric heating gasification furnace to enable the high-temperature steam, carbon dioxide, coke and a reducing agent to react to generate hydrogen-rich synthesis gas;
step 3, connecting a gas power generation system with the electric heating gasification furnace and the power grid, so that the gas power generation system generates power by using the hydrogen-rich synthetic gas and transmits the generated electric energy to the power grid;
step 4, collecting the waste heat of the gas power generation system by using a waste heat collector;
step 5, connecting the heat exchanger and the lithium bromide unit with the waste heat collector so that the heat exchanger and the lithium bromide unit can utilize waste heat in the waste heat collector to supply heat and cold for users;
and 6, connecting the electric heating gasification furnace with a natural gas pipe network, so that the hydrogen-rich synthetic gas enters the natural gas pipe network and supplies gas to the natural gas pipe network.
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