CN110649650A - Renewable energy hydrogen production and biomass gasification coupled power generation system and working method - Google Patents

Renewable energy hydrogen production and biomass gasification coupled power generation system and working method Download PDF

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Publication number
CN110649650A
CN110649650A CN201910840551.1A CN201910840551A CN110649650A CN 110649650 A CN110649650 A CN 110649650A CN 201910840551 A CN201910840551 A CN 201910840551A CN 110649650 A CN110649650 A CN 110649650A
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power generation
hydrogen
hydrogen production
renewable energy
biomass gasification
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王先鹏
翟燕萍
李佩佩
陈锋
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Huadian Electric Power Research Institute Co Ltd
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Huadian Electric Power Research Institute Co Ltd
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    • 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
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
    • C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • 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
    • 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
    • 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
    • C10J2300/0916—Biomass
    • 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
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects
    • 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
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • 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
    • Y02P20/133—Renewable energy sources, e.g. sunlight
    • 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
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy

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Abstract

The invention discloses a renewable energy hydrogen production and biomass gasification coupled power generation system and a working method, and the system comprises a renewable energy power generation device, an electric power allocation device, an electrolyzed water hydrogen production device, a hydrogen storage tank, an oxygen storage tank, a biomass gasification device, a hydrogen and gas mixing device and a gas boiler power generation device, wherein the renewable energy power generation device, the electric power allocation device and the electrolyzed water hydrogen production device are sequentially connected; the electric power allocating device and the gas boiler generating set are both connected with the power grid. The invention utilizes the abandoned electricity to electrolyze water to produce hydrogen, not only can realize large-scale storage and consumption of renewable energy sources and reduce the cost of producing hydrogen by electrolyzing water, but also mixes the produced hydrogen with biomass gasification gas to generate power and quickens the industrial layout of biomass power generation.

Description

Renewable energy hydrogen production and biomass gasification coupled power generation system and working method
Technical Field
The invention relates to a power generation system, in particular to a power generation system with coupling of renewable energy hydrogen production and biomass gasification.
Background
Since the industrial revolution of the 18 th century, traditional fossil energy (coal, oil, natural gas) is the most dominant primary energy in human development, however, with the massive exploitation and use of traditional fossil energy, energy exhaustion, climate change and ecological environmental problems are increasingly prominent. Therefore, the vigorous development and utilization of renewable energy sources have become a world consensus. However, due to the fact that renewable energy power grid-connected transmission is caused by non-uniformity and intermittence of water energy, wind energy and solar energy, impact is caused to a power grid, fluctuation and unsafety of the power grid are caused, a large amount of renewable energy power cannot be used in a grid-connected mode, and a large amount of water, wind and light are abandoned. In the long run, with the rapid increase of the proportion of renewable energy resources in China, the large-scale storage and consumption of the renewable energy resources are particularly important.
Hydrogen energy has the advantages of high calorific value, no pollution, rich sources and the like, and is regarded as one of energy solutions of the post-petroleum era. The hydrogen energy has various utilization forms, and can be converted into electric energy through power generation of a fuel cell or heat energy through conversion of a hydrogen internal combustion engine. Hydrogen production in industry is carried out in many ways, and hydrogen production by water electrolysis, hydrogen production by coal gasification, hydrogen production by catalytic conversion of heavy oil and natural gas water vapor and the like are common, for example, chinese patent publication No. CN207774799U, published as 2018, 8 and 28 days, wherein hydrogen production by water electrolysis has the most development potential, and can be regenerated by wind energy, water energy, solar energy and the likeEnergy combination, and hydrogen production by water electrolysis can realize CO2And (4) zero emission. However, due to the high hydrogen production cost, the current water electrolysis hydrogen production technology occupies a small part, only 4%, in the domestic hydrogen production market.
Biomass is the most widely occurring material on earth, and typically includes wood and forest waste, agricultural waste, aquatic plants, oil plants, municipal and industrial organic waste, and the like. The biomass energy can be regenerated through photosynthesis of plants, the net emission of carbon dioxide is approximately zero, the biomass energy belongs to renewable energy sources such as wind energy and solar energy, and is a unique renewable carbon source, the resource is rich, and the sustainable utilization of the energy sources can be ensured. The biomass power generation technology is one of the most common and effective methods in the current biomass energy application modes, and biomass power generation is divided into agriculture and forestry waste direct combustion power generation, agriculture and forestry waste gasification power generation, waste incineration power generation, garbage landfill gas power generation and methane power generation, but is influenced by adverse factors such as high dispersion of cultivated land, high cost of resource collection, storage and transportation, and the like, so that the biomass power generation industry develops slowly in China.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for large-scale storage and consumption of renewable energy sources, which can realize efficient and sufficient utilization of the renewable energy sources and reduce the cost of hydrogen production by electrolyzing water by abandoning electricity, can generate electricity by mixing the generated hydrogen and biomass gasification fuel gas, can relieve the problems of high cost of collection, storage and transportation of the current biomass resources, and the like, and can accelerate the layout of the biomass power generation industry.
The technical scheme adopted by the invention for solving the problems is as follows: a power generation system with coupling of renewable energy hydrogen production and biomass gasification is characterized by comprising a renewable energy power generation device, an electric power allocation device, an electrolyzed water hydrogen production device, a hydrogen storage tank, an oxygen storage tank, a biomass gasification device, a hydrogen and gas mixing device and a gas boiler power generation device, wherein the renewable energy power generation device is connected with the electric power allocation device, the electric power allocation device is connected with the electrolyzed water hydrogen production device, the electrolyzed water hydrogen production device is respectively connected with the hydrogen storage tank and the oxygen storage tank, the oxygen storage tank is connected with the biomass gasification device, the hydrogen storage tank and the biomass gasification device are both connected with the hydrogen and gas mixing device, and the hydrogen and gas mixing device is connected with the gas boiler power generation device; the electric power allocation device and the gas boiler power generation device are both connected with a power grid, the gas boiler power generation device is further connected with local distributed users, the hydrogen storage tank is further connected with local hydrogen users, and the oxygen storage tank is further connected with oxygen users.
Furthermore, the power distribution cabinet is connected with the rectifier, the rectifier is connected with the control equipment, the control equipment is respectively connected with the electrolyzed water hydrogen production device and the storage battery, and the storage battery is connected with the electrolyzed water hydrogen production device.
Furthermore, the renewable energy power generation device comprises a water power generation device, a wind power generation device or a solar power generation device, the biomass gasification device comprises an agriculture and forestry waste gasification device, a garbage landfill gas device or a microorganism fermentation biogas device, and the water electrolysis hydrogen production device comprises an alkaline water electrolysis device, a solid polymer water electrolysis device or a high-temperature solid oxide water electrolysis device.
Furthermore, the cathode and the anode of the hydrogen production device by electrolyzing water are made of metal alloy and metal oxide respectively, including but not limited to porous Raney nickel, Ni-Cu alloy, Ni-Mo alloy, Ni-Ir alloy and NiCo2O4。
Furthermore, the water electrolysis hydrogen production device consists of a plurality of monomer electrolysis chambers.
The working method of the power generation system with the coupling of the hydrogen production from the renewable energy source and the biomass gasification comprises the following steps: after the generated electric energy is distributed by the electric power allocation device, most of the electric energy is transmitted to the power grid, and meanwhile, the electric energy which cannot be connected to the power grid is transmitted to the water electrolysis hydrogen production device; oxygen in the oxygen storage tank is sent to a biomass gasification device for oxygen-enriched gasification or local oxygen users to consume the oxygen; the gasified fuel gas in the biomass gasification device is mixed with the hydrogen in the hydrogen storage tank in the hydrogen and fuel gas mixing device according to a certain proportion, then the mixed hydrogen or the HCNG mixed gas is sent to the fuel gas boiler power generation device for cogeneration, a part of generated electric energy is transmitted to the power grid, the rest electric energy and heat energy are supplied to local distributed users for use, and the surplus hydrogen in the hydrogen storage tank is transmitted to the local hydrogen users.
Compared with the prior art, the invention has the following advantages and effects:
(1) the high-efficiency full utilization of renewable energy sources is realized by abandoning electricity to electrolyze water to produce hydrogen, and the cost of producing hydrogen by electrolyzing water is reduced.
(2) Adapt to wide power fluctuation and reduce the influence of electricity abandonment on the quality of hydrogen products.
(3) The generated cheap hydrogen and the biomass gasification gas are mixed to generate power, so that the problems of high cost and the like of collecting, storing and transporting the current biomass resources can be solved, and the industrial layout of biomass power generation is accelerated.
(4) The oxygen which is the byproduct of hydrogen production by water electrolysis is utilized to carry out biomass oxygen-enriched gasification, thereby improving the calorific value and the conversion rate of the gasified fuel gas.
(5) The characteristic of rich biomass resources and wide geographical distribution is combined, and the problem of unbalanced development of a hydrogen energy industry area caused by slow infrastructure construction and shortage of natural gas in the fuel cell industry is solved.
(6) The whole process has zero pollution emission, low cost and good economic and environmental benefits.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
In the figure: the system comprises a renewable energy power generation device 1, an electric power allocation device 2, an electrolytic water hydrogen production device 3, a hydrogen storage tank 4, an oxygen storage tank 5, a biomass gasification device 6, a hydrogen and gas mixing device 7, a gas boiler power generation device 8, a power grid 9, distributed users 10, hydrogen users 11 and oxygen users 12.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Referring to fig. 1, the power generation system with coupling of renewable energy hydrogen production and biomass gasification in this embodiment includes a renewable energy power generation device 1, an electric power allocation device 2, an electrolyzed water hydrogen production device 3, a hydrogen storage tank 4, an oxygen storage tank 5, a biomass gasification device 6, a hydrogen gas and fuel gas mixing device 7, and a fuel gas boiler power generation device 8.
The electric energy output end of the renewable energy power generation device 1 is connected with the electric energy input end of the electric power allocation device 2, the electric energy output end of the electric power allocation device 2 is connected with the electric energy input end of the electrolyzed water hydrogen production device 3, the hydrogen outlet end of the electrolyzed water hydrogen production device 3 is connected with the hydrogen inlet end of the hydrogen storage tank 4, the oxygen outlet end of the electrolyzed water hydrogen production device 3 is connected with the oxygen inlet end of the oxygen storage tank 5, the oxygen outlet end of the oxygen storage tank 5 is connected with the oxygen inlet end of the biomass gasification device 6, the hydrogen outlet end of the hydrogen storage tank 4 is connected with the hydrogen inlet end of the hydrogen-gas mixing device 7, the gas outlet end of the biomass gasification device 6 is connected with the gas inlet end of the hydrogen-gas mixing device 7, and the hydrogen-mixed; the electric energy output ends of the electric power allocation device 2 and the gas boiler power generation device 8 are connected with the electric energy input end of the power grid 9, the electric energy and heat energy output end of the gas boiler power generation device 8 is connected with the electric energy and heat energy input end of a local distributed user 10, and the hydrogen outlet end of the hydrogen storage tank 4 and the oxygen outlet end of the oxygen storage tank 5 are respectively connected with the hydrogen input end of a local hydrogen user 11 and the oxygen input end of an oxygen user 12.
In this embodiment, the power distribution device 2 includes a power distribution cabinet, a rectifier, a control device and a storage battery, the power distribution cabinet is connected with the rectifier, the rectifier is connected with the control device, the control device is respectively connected with the electrolyzed water hydrogen production device 3 and the storage battery, and the storage battery is connected with the electrolyzed water hydrogen production device 3.
In this embodiment, the renewable energy power generation device 1 includes a water energy power generation device, a wind energy power generation device, or a solar power generation device, the biomass gasification device 6 includes an agriculture and forestry waste gasification device, a landfill gas device, or a microorganism fermentation biogas device, and the electrolyzed water hydrogen production device 3 includes an alkaline electrolyzed water device, a solid polymer electrolyzed water device, or a high-temperature solid oxide electrolyzed water device.
In this embodiment, the cathode and the anode of the hydrogen production device 3 by electrolyzing water are made of metal alloy and metal oxide, respectively.
In this embodiment, the water electrolysis hydrogen production apparatus 3 is composed of a plurality of single electrolysis chambers.
The working method of the power generation system with coupling of renewable energy hydrogen production and biomass gasification in the embodiment is as follows: the renewable energy power generation device 1 distributes the generated electric energy through the electric power allocation device 2, most of the electric energy is transmitted to the power grid 9, meanwhile, the electric energy which can not be connected to the grid is transmitted to the water electrolysis hydrogen production device 3, the water electrolysis hydrogen production device 3 utilizes the abandoned electricity to produce hydrogen and oxygen, the hydrogen and the oxygen are respectively stored in the hydrogen storage tank 4 and the oxygen storage tank 5, oxygen in the oxygen storage tank 5 is sent to a biomass gasification device 6 for oxygen-enriched gasification or local oxygen users 12 for local consumption, gasified fuel gas and hydrogen in the hydrogen storage tank 4 are mixed in a hydrogen-gas mixing device 7 according to a certain proportion, then the mixed hydrogen gas or HCNG mixed gas is sent to a gas boiler power generation device 8 for cogeneration, a part of generated electric energy is sent to a power grid 9, the rest electric energy and heat energy are supplied to local distributed users 10, and the surplus hydrogen in the hydrogen storage tank 4 is delivered to the hydrogen users 11.
Although the present invention has been described with reference to the above embodiments, it should be understood that the scope of the present invention is not limited thereto, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims (6)

1. A power generation system with coupling of renewable energy hydrogen production and biomass gasification is characterized by comprising a renewable energy power generation device (1), an electric power allocation device (2), a water electrolysis hydrogen production device (3), a hydrogen storage tank (4), an oxygen storage tank (5), a biomass gasification device (6), a hydrogen gas and fuel gas mixing device (7) and a fuel gas boiler power generation device (8), the renewable energy power generation device (1) is connected with the power allocation device (2), the electric power allocating device (2) is connected with the water electrolysis hydrogen production device (3), the water electrolysis hydrogen production device (3) is respectively connected with the hydrogen storage tank (4) and the oxygen storage tank (5), the oxygen storage tank (5) is connected with the biomass gasification device (6), the hydrogen storage tank (4) and the biomass gasification device (6) are both connected with the hydrogen gas and fuel gas mixing device (7), the hydrogen gas mixing device (7) is connected with a gas boiler power generation device (8); electric power allotment device (2) and gas boiler power generation facility (8) all are connected with electric wire netting (9), gas boiler power generation facility (8) still are connected with local distributed user (10), hydrogen storage tank (4) still are connected with local hydrogen user (11), oxygen storage tank (5) still are connected with oxygen user (12).
2. The renewable energy hydrogen production and biomass gasification coupled power generation system according to claim 1, wherein the power distribution cabinet, the rectifier, the control device and the storage battery are included in the power distribution cabinet (2), the power distribution cabinet is connected with the rectifier, the rectifier is connected with the control device, the control device is respectively connected with the water electrolysis hydrogen production device (3) and the storage battery, and the storage battery is connected with the water electrolysis hydrogen production device (3).
3. The power generation system with coupling of renewable energy hydrogen production and biomass gasification according to claim 1, wherein the renewable energy power generation device (1) comprises a hydro-energy power generation device, or a wind power generation device, or a solar power generation device, the biomass gasification device (6) comprises an agriculture and forestry waste gasification device, or a landfill gas device, or a microbial fermentation biogas device, and the electrolyzed water hydrogen production device (3) comprises an alkaline electrolyzed water device, or a solid polymer electrolyzed water device, or a high-temperature solid oxide electrolyzed water device.
4. The renewable energy hydrogen production and biomass gasification coupled power generation system according to claim 1, wherein the cathode and the anode of the water electrolysis hydrogen production device (3) are made of metal alloy and metal oxide respectively.
5. The renewable energy hydrogen production and biomass gasification coupled power generation system according to claim 1, wherein the water electrolysis hydrogen production device (3) is composed of a plurality of single electrolysis chambers.
6. A method for operating a renewable energy hydrogen production and biomass gasification coupled power generation system as claimed in any one of claims 1 to 5, characterized in that the process comprises: after the electric energy generated by the renewable energy power generation device (1) is distributed by the electric power allocation device (2), most of the electric energy is transmitted to the power grid (9), and meanwhile, the electric energy which cannot be connected to the grid is transmitted to the electrolytic water hydrogen production device (3); oxygen in the oxygen storage tank (5) is sent to a biomass gasification device (6) for oxygen-enriched gasification or local oxygen users (12) to consume on site; the gasified fuel gas in the biomass gasification device (6) and the hydrogen gas in the hydrogen storage tank (4) are mixed in the hydrogen gas mixing device (7) according to a certain proportion, then the mixed hydrogen gas or the HCNG mixed gas is sent to the gas boiler power generation device (8) for cogeneration, a part of generated electric energy is transmitted to the power grid (9), the rest of electric energy and heat energy are supplied to local distributed users (10) for use, and the surplus hydrogen gas in the hydrogen storage tank (4) is transmitted to the local hydrogen users (11).
CN201910840551.1A 2019-09-06 2019-09-06 Renewable energy hydrogen production and biomass gasification coupled power generation system and working method Pending CN110649650A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
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CN111709654A (en) * 2020-06-20 2020-09-25 陕西省地方电力物资有限公司 Power grid material blending device
CN113151844A (en) * 2021-04-30 2021-07-23 中国华能集团清洁能源技术研究院有限公司 Plateau self-sufficient clean energy system and control method
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CN113151844A (en) * 2021-04-30 2021-07-23 中国华能集团清洁能源技术研究院有限公司 Plateau self-sufficient clean energy system and control method
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CN113422436A (en) * 2021-07-08 2021-09-21 中国长江三峡集团有限公司 System and method for realizing superconducting energy storage and utilization by electrolyzing water to produce hydrogen by using renewable energy source
CN113794227B (en) * 2021-08-13 2024-01-30 南方电网科学研究院有限责任公司 Comprehensive energy system for realizing carbon circulation
CN113794227A (en) * 2021-08-13 2021-12-14 南方电网科学研究院有限责任公司 Comprehensive energy system for realizing carbon circulation
CN114320490A (en) * 2021-11-18 2022-04-12 中国大唐集团新能源科学技术研究院有限公司 Green energy chemical system based on hydrogen production from renewable energy
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