CN114658537B - Based on CO 2 Co-electrolysis and biocatalysis power generation and substance combination supply system and method - Google Patents

Based on CO 2 Co-electrolysis and biocatalysis power generation and substance combination supply system and method Download PDF

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CN114658537B
CN114658537B CN202210439945.8A CN202210439945A CN114658537B CN 114658537 B CN114658537 B CN 114658537B CN 202210439945 A CN202210439945 A CN 202210439945A CN 114658537 B CN114658537 B CN 114658537B
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power generation
electrolysis
oxygen
water
formic acid
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CN114658537A (en
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王静贻
秦江
张德明
冯宇
王紫璇
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Harbin Institute Of Technology shenzhen Shenzhen Institute Of Science And Technology Innovation Harbin Institute Of Technology
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Harbin Institute Of Technology shenzhen Shenzhen Institute Of Science And Technology Innovation Harbin Institute Of Technology
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen
    • C01B13/0229—Purification or separation processes
    • C01B13/0248—Physical processing only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • 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
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/01—Products
    • C25B3/07—Oxygen containing compounds

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  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The invention provides a method based on CO 2 Co-electrolysis and biocatalysis power generation and substance combination supply system and method, wherein the system comprises a wind power or photovoltaic power generation system, a water electrolysis cell, an air separation device, an ammonia synthesis module, an oxygen-enriched combustion power generation module and CO 2 And H 2 Co-electrolytic cell for preparing methanol from O and CO 2 And H 2 O-formic acid CO-electrolytic cell, biocatalyst and CO 2 And (5) a recovery module. The system uses green low-carbon electric energy generated by wind energy or solar energy as driving force, organically combines oxygen-enriched combustion to generate electricity and CO 2 And H 2 O CO-electrolysis, methanol and formic acid are biologically catalyzed to generate degradable plastic and the like, thereby realizing thermal power generation and CO 2 Compatible synergy of carbon emission reduction, CO 2 Is effectively utilized and converted into biodegradable plastic, and can obviously complement the carbon emission reduction cost. Simultaneously, the combined production of substances such as ammonia, methanol, formic acid, biodegradable plastics and the like and electric energy is completed, and the system is a novel substance energy system which meets the development goal of a low-carbon society.

Description

Based on CO 2 Co-electrolysis and biocatalysis power generation and substance combination supply system and method
Technical Field
The invention belongs to the technical field of comprehensive application of energy, and particularly relates to a method based on CO 2 Co-electrolysis and biocatalysis power generation and material co-supply systems and methods.
Background
In order to slow down the greenhouse effect, the energy system is undergoing green low-carbon transformation and transformation, and the reduction of carbon dioxide emission of the energy system has become the consensus of human society. The carbon dioxide capturing, utilizing and sealing technology (CCUS) plays an important role in green low-carbon reform of an energy system, and particularly for energy intensive industries such as thermal power generation, cement, steel and the like, the CCUS technology can be well combined with the existing equipment, and large-scale reconstruction of infrastructure is avoided.
However, the CCUS technology requires new investments while operating at high costs. For example, the current technology of reducing carbon emission in thermal power generation mainly comprises the steps of absorbing and separating carbon dioxide in the combusted flue gas by a chemical absorption or physical absorption method, but because the volume fraction of carbon dioxide in the flue gas is low, the trapping system is huge, and the separation and analysis energy consumption is high (the power supply efficiency is reduced by 10-15%). Therefore, the high carbon emission reduction cost brings great difficulty to the low-carbon clean reform in the fields of thermal power generation and the like.
The CCUS technology can be realized by CO 2 Is converted into high-added-value raw materials, so that the wide market of modern chemical high-added-value raw materials is fully utilized to reduce the carbon emission reduction cost. For example, formic acid, methanol and the like are important chemical raw materials and have higher market value, but at present, the sources are fossil fuels, the sources are extracted from petroleum, the raw materials belong to a high-carbon chemical process, and if a novel low-carbon production method of the formic acid and the methanol can be explored, the carbon emission reduction of the chemical industry can be achieved.
Overall, the existing carbon dioxide capturing, utilizing and sealing technology has high cost, and brings difficulty to carbon emission reduction of thermal power generation. Meanwhile, the modern chemical raw material (such as plastic) production process has strong dependence on fossil fuel.
Disclosure of Invention
The invention aims to provide a method based on CO 2 The co-electrolysis and biocatalysis power generation and substance combined supply system and method aim to solve the problems that the cost of the carbon dioxide capturing, utilizing and sealing technology in the prior art is high, difficulty is brought to carbon emission reduction of thermal power generation, and the dependence of the modern chemical raw material production process on fossil fuel is strong.
The invention is realized in such a way that a method based on CO 2 Co-electrolysis and biocatalysis power generation and materialsThe combined supply system comprises a wind power or photovoltaic power generation system, a water electrolysis cell, an air separation device, an ammonia synthesis module, an oxygen-enriched combustion power generation module and CO 2 And H 2 Co-electrolytic cell for preparing methanol from O and CO 2 And H 2 O-formic acid CO-electrolytic cell, biocatalyst and CO 2 A recovery module;
the electric energy output by the electric energy output port of the wind power or photovoltaic power generation system is divided into 4 strands, and the 4 strands are respectively connected to the electric energy input port of the water electrolysis cell, the electric energy input port of the air separation device and CO 2 And H 2 Electric energy input port and CO of O-system methanol CO-electrolysis cell 2 And H 2 An electric energy input port of the O-formic acid co-electrolysis cell;
the water electrolysis cell is used for carrying out water electrolysis reaction on water to obtain hydrogen and oxygen, a water input port of the water electrolysis cell is connected with an external water source, a hydrogen output port of the water electrolysis cell is connected with a hydrogen input port of the ammonia synthesis module, and an oxygen output port of the water electrolysis cell is connected with an oxygen input port of the oxygen-enriched combustion power generation module;
the air separation device sucks external ambient air and separates the air into oxygen and nitrogen; the nitrogen output port of the oxygen-enriched combustion power generation module is connected with the nitrogen input port of the ammonia synthesis module, and the oxygen output port of the oxygen-enriched combustion power generation module is connected with the oxygen input port of the oxygen-enriched combustion power generation module; the ammonia in the output port of the product of the ammonia synthesis module is divided into two streams, one stream is output outwards as one of the system products, and the other stream is connected to the ammonia input port of the biocatalyst;
the fuel input port of the oxygen-enriched combustion power generation module is a fossil fuel adding port, the generated power can be output outwards as a second system product, and the high-temperature CO of the tail gas output port of the oxygen-enriched combustion power generation module 2 And H 2 O gas and CO from the CO 2 Recovery of CO from modules 2 After the gas is converged, the gas is divided into two streams, one stream flows into the CO 2 And H 2 Raw material input port of O-made methanol CO-electrolysis cell, the other flow into the CO 2 And H 2 Raw material input port of O formic acid co-electrolytic cell;
the CO 2 And H 2 Co-production of methanol from OThe water inlet of the electrolytic cell is connected with an external water source, CO 2 And H is 2 O generates co-electrolysis to generate methanol, the methanol at the output port of the product is divided into two streams, one stream is taken as the third of the system products to be output outwards, and the other stream is connected with the methanol input port of the biocatalyst;
the CO 2 And H 2 The water inlet of the O-formic acid CO-electrolysis cell is connected with an external water source, CO 2 And H is 2 O generates co-electrolysis to generate formic acid, the formic acid of a product output port is divided into two strands, one strand is taken as a system product and is output from the four directions, and the other strand is connected with a formic acid input port of the biocatalyst;
the biodegradable plastic produced in the biocatalyst is output from its product port as the fifth output of the system product, and the tail gas produced in the catalytic reaction process is led into the CO 2 The recovery module is used for recovering the waste water; the CO 2 CO obtained by purifying tail gas in recovery module 2 And mixing and converging the mixed gas with the tail gas output by the oxygen-enriched combustion power generation module.
The invention also provides a device based on CO for achieving the above purpose 2 The co-electrolysis and biocatalysis power generation and substance combination supply method comprises the following steps:
electric energy generated by a wind power or photovoltaic power generation system is respectively connected into a water electrolytic cell and an air separation device, water generates electrochemical reaction in the water electrolytic cell to generate hydrogen and oxygen, and air is separated in the air separation device to generate nitrogen and oxygen; the generated oxygen is converged and enters the oxygen-enriched combustion power generation module to be used as a combustion improver;
introducing hydrogen and nitrogen into an ammonia synthesis module to synthesize ammonia, and outputting the ammonia as one of products;
oxygen in the oxygen-enriched combustion power generation module and fossil fuel are subjected to oxygen-enriched combustion, chemical energy is converted into mechanical energy and then is converted into electric energy to be output, and the electric energy is output as a second product; simultaneously generating high-temperature flue gas, wherein the main components of the high-temperature flue gas comprise carbon dioxide and water vapor;
high temperature flue gas and CO 2 Recovery module reflux CO 2 After converging, the mixture is divided into two strands, one strand is introduced intoCO 2 And H 2 CO-electrolysis is carried out in an O-methanol CO-electrolysis cell, and the other strand enters CO 2 And H 2 The O-formic acid co-electrolysis cell carries out co-electrolysis, and the electric energy of the co-electrolysis is from a wind power or photovoltaic power generation system; at the CO 2 And H 2 Co-electrolysis cell for preparing methanol from O and CO 2 And H 2 In the O formic acid preparing co-electrolytic cell, the carbon dioxide and the water vapor are respectively converted into methanol and formic acid, and the methanol and the formic acid are taken as products III and IV to be output outwards; in CO 2 And H 2 Co-electrolytic cell for preparing methanol from O and CO 2 And H 2 The O-formic acid co-electrolytic cell is externally connected with a water source and can regulate H 2 O and CO 2 Controlling the hydrocarbon generation process proportionally;
the generated methanol and formic acid enter a biocatalyst according to a certain proportion, and biodegradable plastic is generated under the action of microbial catalysis and is output as a fifth output of the product;
tail gas produced in biocatalyst enters CO 2 CO in recovery module 2 Purifying the CO obtained by purification 2 And the mixed gas is converged with the tail gas generated by the oxygen-enriched combustion power generation module and then is subjected to co-electrolysis again.
Further, the air separation device adopts a low-temperature air separation technology.
Furthermore, the water electrolysis cell adopts alkaline electrolysis water, proton exchange membrane electrolysis water or high-temperature solid oxide electrolysis water technology.
Further, the CO 2 The recovery module adopts PSA pressure swing adsorption technology.
Further, by regulating CO 2 And H 2 Co-electrolysis tank for preparing methanol from O and CO 2 And H 2 H in O-formic acid co-electrolytic cell 2 O to regulate and control CO in CO-electrolysis reaction 2 And H is 2 The ratio of O is further controlled to produce the product.
Compared with the prior art, the invention has the beneficial effects that:
the power generation and substance combined supply system and method of the invention use the green low-carbon electric energy generated by wind energy or solar energy as driving force, and organically combine oxygen-enriched combustion power generation and CO 2 And H 2 O CO-electrolysis, methanol and formic acid are biologically catalyzed to generate degradable plastic and the like, thereby realizing thermal power generation and CO 2 Compatible synergy of carbon emission reduction, CO 2 Is effectively recycled and converted into biodegradable plastic with higher market value, and can obviously complement carbon emission reduction cost. Meanwhile, the production of substances such as ammonia, methanol, formic acid, biodegradable plastics and the like and electric energy are completed, the dependence on fossil fuel is reduced, and the novel substance energy system meets the development target of a low-carbon society.
Drawings
FIG. 1 is a schematic illustration of a CO-based system according to an embodiment of the present invention 2 And a structural block diagram of a co-electrolysis and biocatalysis power generation and substance combination system.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to FIG. 1, a CO-based system according to the present embodiment is shown 2 The CO-electrolysis and biocatalysis power generation and substance combination supply system comprises a wind power or photovoltaic power generation system 1, a water electrolysis cell 2, an air separation device 3, an ammonia synthesis module 4, an oxygen-enriched combustion power generation module 5 and CO 2 And H 2 Co-electrolytic cell 6 for preparing methanol from O and CO 2 And H 2 O-formic acid CO-electrolytic cell 7, biocatalyst 8 and CO 2 And a recovery module 9.
The electric energy output by the electric energy output port of the wind power or photovoltaic power generation system 1 is divided into 4 strands, and the 4 strands are respectively connected to the electric energy input port of the water electrolytic cell 2, the electric energy input port of the air separation device 3 and CO 2 And H 2 Electric energy input port and CO of O-system methanol CO-electrolytic cell 6 2 And H 2 And an electric energy input port of the O-formic acid co-electrolysis cell 7.
The water electrolysis cell 2 is used for hydrolyzing water to obtain hydrogen and oxygen, the water input port of the water electrolysis cell is connected with an external water source, the hydrogen output port of the water electrolysis cell is connected with the hydrogen input port of the ammonia synthesis module, and the oxygen output port of the water electrolysis cell is connected with the oxygen input port of the oxygen-enriched combustion power generation module 5.
The air separation device 3 is used for sucking external air and separating the air into oxygen and nitrogen; the nitrogen output port of the oxygen-enriched combustion power generation module is connected to the nitrogen input port of the ammonia synthesis module 4, and the oxygen output port of the oxygen-enriched combustion power generation module is connected to the oxygen input port of the oxygen-enriched combustion power generation module 5; the nitrogen and hydrogen in the ammonia synthesis module 4 synthesize ammonia, and the ammonia at the output port of the product is split into two streams, one stream is output outwards as one of the system products, and the other stream is connected to the ammonia input port of the biocatalyst 8.
The fuel input port of the oxygen-enriched combustion power generation module 5 is used as a fossil fuel adding port, the generated power can be used as a second system product to be output outwards, and the high-temperature CO of the tail gas output port of the oxygen-enriched combustion power generation module 2 And H 2 O gas and CO 2 Recovery of CO from module 9 2 After the gas is converged, the gas is divided into two streams, one stream flows into CO 2 And H 2 Raw material input port of O-made methanol CO-electrolytic cell 6, and the other flow into CO 2 And H 2 O-formic acid preparing co-catalystA raw material input port of the electrolytic cell 7.
CO 2 And H 2 The water inlet of the O-made methanol CO-electrolysis cell 6 is connected with an external water source, CO 2 And H is 2 O generates methanol through co-electrolysis, the methanol at the output port of the product is divided into two streams, one stream is output outwards as the third of the system products, and the other stream is connected with the methanol input port of the biocatalyst 8.
CO 2 And H 2 The water inlet of the O-formic acid CO-electrolysis cell 7 is connected with an external water source, CO 2 And H is 2 O generates formic acid through co-electrolysis, the formic acid at the output port of the product is divided into two parts, one part is output from the four parts as the system product, and the other part is connected with the formic acid input port of the biocatalyst 8. The biodegradable plastic produced in the biocatalyst 8 is output from its product port as the fifth output of the system product, and the tail gas produced during the catalytic reaction process is introduced into CO 2 A recovery module 9; CO 2 CO obtained by purifying tail gas in recovery module 9 2 And mixing and converging the mixed gas with the tail gas output by the oxygen-enriched combustion power generation module 5.
The embodiment also provides a method based on CO 2 The co-electrolysis and biocatalysis power generation and substance combination supply method comprises the following steps:
s1, respectively inputting electric energy generated by a wind power or photovoltaic power generation system 1 into a water electrolytic cell 2 and an air separation device 3, generating hydrogen and oxygen by electrochemical reaction of water in the water electrolytic cell 2, and generating nitrogen and oxygen by air in the air separation device 3; the generated oxygen is converged into the oxygen-enriched combustion power generation module 5 to be used as a combustion improver.
S2, introducing hydrogen and nitrogen into the ammonia synthesis module 4 to synthesize ammonia, and outputting the ammonia as one of the polygenerations of the system.
S3, oxygen in the oxygen-enriched combustion power generation module 5 and fossil fuel are subjected to oxygen-enriched combustion, chemical energy is converted into mechanical energy and then is converted into electric energy to be output, and the electric energy is output as second poly-generation product of the system; simultaneously generating high-temperature flue gas; the components of the high temperature flue gas include carbon dioxide and water vapor.
S4, mixing the high-temperature flue gas with CO 2 Recovery module 9Reflux CO 2 After converging, the mixture is divided into two streams, and one stream is introduced into CO 2 And H 2 CO-electrolysis is carried out in the CO-electrolysis tank 6 for preparing methanol by O, and CO is introduced into the other strand 2 And H 2 The O formic acid co-electrolysis cell 7 carries out co-electrolysis, and the electric energy of the co-electrolysis is from the wind power or photovoltaic power generation system 1; in CO 2 And H 2 Co-electrolytic cell 6 for preparing methanol from O and CO 2 And H 2 In the O-formic acid co-electrolytic cell 7, carbon dioxide and water vapor are respectively converted into methanol and formic acid, and the methanol and the formic acid are output as three and four of poly-co-products of the system. In CO 2 And H 2 Co-electrolytic cell for preparing methanol from O and CO 2 And H 2 The O-formic acid co-electrolytic cell is externally connected with a water source and can regulate H 2 O and CO 2 The ratio controls the hydrocarbon generation process.
S5, introducing the generated methanol and formic acid into a biocatalyst 8 according to a certain proportion, and generating biodegradable plastic under the action of microbial catalysis, and outputting the biodegradable plastic as a fifth output of the system poly-product.
S6, introducing the tail gas generated in the biocatalyst 8 into CO 2 CO is carried out in the recovery module 9 2 Purifying the CO obtained by purification 2 And flows back, is converged with the tail gas generated by the oxygen-enriched combustion power generation module 5, and then participates in co-electrolysis again.
In this embodiment, the air separation apparatus 3 may employ a low-temperature air separation technique; the water electrolytic cell 2 can adopt alkaline electrolytic water, proton exchange membrane electrolytic water or high-temperature solid oxide electrolytic water technology. CO 2 Recovery module 8 may employ PSA pressure swing adsorption technology.
Also can be introduced into CO by adjusting 2 And H 2 Co-electrolytic tank 6 for preparing methanol from O and CO 2 And H 2 H in O formic acid co-electrolytic cell 7 2 O to regulate and control CO in CO-electrolysis reaction 2 And H is 2 The ratio of O is further controlled to produce the product.
In summary, the embodiment uses the green low-carbon electric energy generated by wind energy or solar energy as the driving force, and organically combines oxygen-enriched combustion to generate electricity and CO 2 And H 2 O co-electrolysis, the biological catalysis of methanol and formic acid to produce degradable plastic and other processesThermal power generation and CO 2 Compatible synergy of carbon emission reduction, CO 2 Is effectively recycled and converted into biodegradable plastic with higher market value, and can obviously complement carbon emission reduction cost. Meanwhile, the production of substances such as ammonia, methanol, formic acid, biodegradable plastics and the like and electric energy are completed, the dependence on fossil fuel is reduced, and the novel substance energy system meets the development target of a low-carbon society.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (6)

1. Based on CO 2 The CO-electrolysis and biocatalysis power generation and substance combination system is characterized by comprising a wind power or photovoltaic power generation system, a water electrolysis cell, an air separation device, an ammonia synthesis module, an oxygen-enriched combustion power generation module and CO 2 And H 2 Co-electrolytic cell for preparing methanol from O and CO 2 And H 2 O-formic acid CO-electrolytic cell, biocatalyst and CO 2 A recovery module;
the electric energy output by the electric energy output port of the wind power or photovoltaic power generation system is divided into 4 strands, and the 4 strands are respectively connected to the electric energy input port of the water electrolysis cell, the electric energy input port of the air separation device and CO 2 And H 2 Electric energy input port and CO of O-system methanol CO-electrolysis cell 2 And H 2 An electric energy input port of the O-formic acid co-electrolysis cell;
the water electrolysis cell is used for carrying out water electrolysis reaction on water to obtain hydrogen and oxygen, a water input port of the water electrolysis cell is connected with an external water source, a hydrogen output port of the water electrolysis cell is connected with a hydrogen input port of the ammonia synthesis module, and an oxygen output port of the water electrolysis cell is connected with an oxygen input port of the oxygen-enriched combustion power generation module;
the air separation device sucks external ambient air and separates the air into oxygen and nitrogen; the nitrogen output port of the oxygen-enriched combustion power generation module is connected with the nitrogen input port of the ammonia synthesis module, and the oxygen output port of the oxygen-enriched combustion power generation module is connected with the oxygen input port of the oxygen-enriched combustion power generation module; the ammonia in the output port of the product of the ammonia synthesis module is divided into two streams, one stream is output outwards as one of the system products, and the other stream is connected to the ammonia input port of the biocatalyst;
the fuel input port of the oxygen-enriched combustion power generation module is a fossil fuel adding port, the generated power can be output outwards as a second system product, and the high-temperature CO of the tail gas output port of the oxygen-enriched combustion power generation module 2 And H 2 O gas and CO from the CO 2 Recovery of CO from modules 2 After the gas is converged, the gas is divided into two streams, one stream flows into the CO 2 And H 2 Raw material input port of O-made methanol CO-electrolysis cell, the other flow into the CO 2 And H 2 Raw material input port of O formic acid co-electrolytic cell;
the CO 2 And H 2 The water input port of the O-made methanol CO-electrolysis cell is connected with an external water source, and CO 2 And H is 2 O generates co-electrolysis to generate methanol, the methanol at the output port of the product is divided into two streams, one stream is taken as the third of the system products to be output outwards, and the other stream is connected with the methanol input port of the biocatalyst;
the CO 2 And H 2 The water inlet of the O-formic acid CO-electrolysis cell is connected with an external water source, CO 2 And H is 2 O generates co-electrolysis to generate formic acid, the formic acid of a product output port is divided into two strands, one strand is taken as a system product and is output from the four directions, and the other strand is connected with a formic acid input port of the biocatalyst;
the biodegradable plastic produced in the biocatalyst is output from its product port as the fifth output of the system product, and the tail gas produced in the catalytic reaction process is led into the CO 2 The recovery module is used for recovering the waste water; the CO 2 CO obtained by purifying tail gas in recovery module 2 And mixing and converging the mixed gas with the tail gas output by the oxygen-enriched combustion power generation module.
2. Based on CO 2 The co-electrolysis and biocatalysis power generation and substance combination supply method is characterized by comprising the following steps of:
electric energy generated by a wind power or photovoltaic power generation system is respectively connected into a water electrolytic cell and an air separation device, water generates electrochemical reaction in the water electrolytic cell to generate hydrogen and oxygen, and air is separated in the air separation device to generate nitrogen and oxygen; the generated oxygen is converged and enters the oxygen-enriched combustion power generation module to be used as a combustion improver;
introducing hydrogen and nitrogen into an ammonia synthesis module to synthesize ammonia, and outputting the ammonia as one of products;
oxygen in the oxygen-enriched combustion power generation module and fossil fuel are subjected to oxygen-enriched combustion, chemical energy is converted into mechanical energy and then is converted into electric energy to be output, and the electric energy is output as a second product; simultaneously generating high-temperature flue gas, wherein the main components of the high-temperature flue gas comprise carbon dioxide and water vapor;
high temperature flue gas and CO 2 Recovery module reflux CO 2 After converging, the mixture is divided into two streams, and one stream is introduced into CO 2 And H 2 CO-electrolysis is carried out in an O-methanol CO-electrolysis cell, and the other strand enters CO 2 And H 2 The O-formic acid co-electrolysis cell carries out co-electrolysis, and the electric energy of the co-electrolysis is from a wind power or photovoltaic power generation system; at the CO 2 And H 2 Co-electrolysis cell for preparing methanol from O and CO 2 And H 2 In the O formic acid preparing co-electrolytic cell, the carbon dioxide and the water vapor are respectively converted into methanol and formic acid, and the methanol and the formic acid are taken as products III and IV to be output outwards; in CO 2 And H 2 Co-electrolytic cell for preparing methanol from O and CO 2 And H 2 The O-formic acid co-electrolytic cell is externally connected with a water source for regulating H 2 O and CO 2 Proportion, control hydrocarbon generation process;
the generated methanol and formic acid enter a biocatalyst according to a certain proportion, and biodegradable plastic is generated under the action of microbial catalysis and is output as a fifth output of the product;
introducing CO into tail gas generated in biocatalyst 2 CO in recovery module 2 Purifying the CO obtained by purification 2 And the mixed gas is converged with the tail gas generated by the oxygen-enriched combustion power generation module and then is subjected to co-electrolysis again.
3. The power and material combination process of claim 2, wherein the air separation unit employs cryogenic air separation technology.
4. The power generation and material combination process of claim 2, wherein the water electrolysis cell employs alkaline electrolysis water, proton exchange membrane electrolysis water or high temperature solid oxide electrolysis water technology.
5. The power generation and substance combination delivery method of claim 2, wherein the CO 2 The recovery module adopts PSA pressure swing adsorption technology.
6. The power generation and material combination delivery method of claim 2, wherein the CO is fed by regulating the feed 2 And H 2 Co-electrolysis tank for preparing methanol from O and CO 2 And H 2 H in O-formic acid co-electrolytic cell 2 O to regulate and control CO in CO-electrolysis reaction 2 And H is 2 The ratio of O is further controlled to produce the product.
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JP2009117323A (en) * 2007-11-07 2009-05-28 Masaya Nagai Fuel-dissolution type fuel cell
EP2838980A1 (en) * 2012-04-19 2015-02-25 Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum - GFZ System and method for ecologically generating and storing electricity
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CN107780987A (en) * 2016-08-31 2018-03-09 贾建立 Turbine suitably a variety of working medium plasma method reheating and magnetic fluid cogeneration and Poly-generation
AU2020101401A4 (en) * 2020-06-19 2020-08-27 zhou, lianhui MR System and Method for Preparing Methanol Therewith
CN113659182A (en) * 2021-09-10 2021-11-16 中国华能集团清洁能源技术研究院有限公司 System and method for peak shaving of renewable energy power generation by using carbon dioxide

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009117323A (en) * 2007-11-07 2009-05-28 Masaya Nagai Fuel-dissolution type fuel cell
EP2838980A1 (en) * 2012-04-19 2015-02-25 Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum - GFZ System and method for ecologically generating and storing electricity
CN105648466A (en) * 2015-10-15 2016-06-08 贾建立 Method for thermochemistry circulation closed type power generating and electrolysis hydrogen production coupling poly-generation of combustion gas turbine system
CN107780987A (en) * 2016-08-31 2018-03-09 贾建立 Turbine suitably a variety of working medium plasma method reheating and magnetic fluid cogeneration and Poly-generation
AU2020101401A4 (en) * 2020-06-19 2020-08-27 zhou, lianhui MR System and Method for Preparing Methanol Therewith
CN113659182A (en) * 2021-09-10 2021-11-16 中国华能集团清洁能源技术研究院有限公司 System and method for peak shaving of renewable energy power generation by using carbon dioxide

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