CN114738062B - Aluminum fuel energy storage system coupling SOFC and gas turbine and working method - Google Patents
Aluminum fuel energy storage system coupling SOFC and gas turbine and working method Download PDFInfo
- Publication number
- CN114738062B CN114738062B CN202210545713.0A CN202210545713A CN114738062B CN 114738062 B CN114738062 B CN 114738062B CN 202210545713 A CN202210545713 A CN 202210545713A CN 114738062 B CN114738062 B CN 114738062B
- Authority
- CN
- China
- Prior art keywords
- aluminum
- communicated
- outlet
- inlet
- gas turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 81
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 46
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000004146 energy storage Methods 0.000 title claims abstract description 38
- 230000008878 coupling Effects 0.000 title claims abstract description 19
- 238000010168 coupling process Methods 0.000 title claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 28
- 239000007787 solid Substances 0.000 claims abstract description 28
- 239000012265 solid product Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000002485 combustion reaction Methods 0.000 claims description 63
- 239000007789 gas Substances 0.000 claims description 59
- 238000010248 power generation Methods 0.000 claims description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 23
- 229910052739 hydrogen Inorganic materials 0.000 claims description 22
- 239000001257 hydrogen Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 10
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 238000003487 electrochemical reaction Methods 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 230000001502 supplementing effect Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002028 Biomass Substances 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 2
- 238000004891 communication Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- XFBXDGLHUSUNMG-UHFFFAOYSA-N alumane;hydrate Chemical compound O.[AlH3] XFBXDGLHUSUNMG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0656—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
- H01M8/1246—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses an aluminum fuel energy storage system for coupling an SOFC and a gas turbine and a working method thereof, comprising an energy release subsystem and an energy storage subsystem; the energy storage subsystem comprises an alumina electrolysis device and a renewable energy source power supply system, wherein a solid product alumina outlet of the energy release subsystem is communicated with a material inlet of the alumina electrolysis device, a power interface of the alumina electrolysis device is connected with the renewable energy source power supply system, a solid alumina fuel outlet of the alumina electrolysis device is communicated with a fuel inlet of the energy release subsystem, and an output end of the energy release subsystem is connected with an external power grid.
Description
Technical Field
The invention belongs to the technical field of green low-carbon power generation and advanced energy storage, and relates to an aluminum fuel energy storage system for coupling an SOFC and a gas turbine and a working method thereof.
Background
With the increasing severity of global atmospheric pollution and climate warming, conventional fossil-energy based power generation systems will face unprecedented pressures and challenges. Worldwide, various countries are striving to increase the proportion of renewable energy power generation in their own power structures. In the future, the trend in the world energy field is necessarily to gradually replace fossil energy with renewable energy. However, renewable energy sources seriously obstruct the development of renewable energy power generation due to the characteristics of self intermittence, instability, uncertainty and the like. In the future, to realize renewable energy sources to replace fossil energy sources, development and support of large-scale and long-period energy storage technologies must be relied on.
At present, the research in the technical field of energy storage is very active, and various energy storage technologies are rapidly developed, such as pumped storage, compressed air storage, lithium battery storage, super capacitor storage, flywheel storage, hydrogen storage and the like. However, the existing energy storage technology is difficult to meet the requirements of high energy storage density, mobility, low consumption loss and energy trade at the same time. Therefore, there is a need to develop a new energy storage technology, so that renewable energy power generation is developed in a deeper and wider direction worldwide.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an aluminum fuel energy storage system for coupling an SOFC and a gas turbine and a working method thereof.
In order to achieve the above purpose, the aluminum fuel energy storage system for coupling the SOFC and the gas turbine comprises an energy release subsystem and an energy storage subsystem;
the energy storage subsystem comprises an alumina electrolysis device and a renewable energy source power supply system, wherein a solid product alumina outlet of the energy release subsystem is communicated with a material inlet of the alumina electrolysis device, a power interface of the alumina electrolysis device is connected with the renewable energy source power supply system, a solid alumina fuel outlet of the alumina electrolysis device is communicated with a fuel inlet of the energy release subsystem, and an output end of the energy release subsystem is connected with an external power grid.
The energy release subsystem comprises a supplementing water input pipeline, an aluminum fuel supply pipeline, an aluminum-steam combustion chamber, a heat regenerator, a gas-liquid cooling separator, a steam turbine, a first generator, a condenser, a hydrogen preheater, a solid oxide fuel cell, a gas turbine combustion chamber, a gas turbine, a second generator, an air preheater and an air compressor;
The steam outlet of the steam turbine is divided into two paths, wherein one path is communicated with a combustion steam inlet of an aluminum-steam combustion chamber, the other path is communicated with a hot side inlet of a condenser, a hot side outlet of the condenser is communicated with a cold side inlet of a heat regenerator after being connected with an outlet of a supplementing water input pipeline in parallel through a pipeline, the cold side outlet of the heat regenerator is communicated with a circulating working medium inlet of the aluminum-steam combustion chamber, the circulating working medium outlet of the aluminum-steam combustion chamber is communicated with an inlet of the steam turbine, an output shaft of the steam turbine is connected with a driving shaft of a first generator, a fuel inlet of the aluminum-steam combustion chamber is communicated with an aluminum fuel supply pipeline, a gas product outlet of the aluminum-steam combustion chamber is communicated with the hot side inlet of the heat regenerator, and the hot side outlet of the heat regenerator is communicated with an inlet of a gas-liquid condensation separator;
The hydrogen outlet of the gas-liquid condensation separator is communicated with the cold side inlet of the hydrogen preheater, the cold side outlet of the hydrogen preheater is communicated with the anode inlet of the solid oxide fuel cell, the inlet of the air compressor is communicated with the air in the external environment, the outlet of the air compressor is communicated with the cold side inlet of the air preheater, the cold side outlet of the air preheater is communicated with the cathode inlet of the solid oxide fuel cell, the anode outlet of the solid oxide fuel cell is communicated with the fuel inlet of the combustion chamber of the gas turbine, the cathode outlet of the solid oxide fuel cell is communicated with the oxidant inlet of the combustion chamber of the gas turbine, the outlet of the combustion chamber of the gas turbine is communicated with the inlet of the gas turbine, the output shaft of the gas turbine is connected with the driving shaft of the second generator, the high-temperature exhaust outlet of the gas turbine is communicated with the hot side inlet of the air preheater, the hot side outlet of the air preheater 1 is communicated with the hot side inlet of the hydrogen preheater, and the output ends of the solid oxide fuel cell, the first generator and the second generator are connected with the external power grid.
The hot side outlet of the condenser is communicated with the cold side inlet of the heat regenerator through a water feeding pump after being connected with the outlet of the supplementing water input pipeline through a pipeline.
In the aluminum-steam combustion chamber, aluminum fuel and steam are subjected to combustion exothermic reaction, the reaction equation is 2Al+3H 2O＝Al2O3+3H2, solid product alumina generated by aluminum-steam combustion is discharged and collected through the bottom of the aluminum-steam combustion chamber, and high-temperature gas mixture generated by aluminum-steam combustion is discharged through a gas product outlet of the aluminum-steam combustion chamber and then enters the hot side of the regenerator.
In solid oxide fuel cells, high temperature hydrogen gas electrochemically reacts with air to produce electrical energy to power the outside.
The power output by the renewable energy power supply system is from photovoltaic power generation, wind power generation, photo-thermal power generation, hydroelectric power generation and/or biomass energy power generation.
The aluminum fuel energy storage method for coupling the SOFC and the gas turbine comprises the following steps of:
When the renewable energy source in the power grid system generates excessive or surplus electricity, the molten aluminum oxide is electrolyzed by an aluminum oxide electrolysis device, and the renewable energy source electricity is converted into chemical energy of aluminum fuel through electrochemical reaction for storage; when renewable energy sources in the power grid system are insufficient in power generation or power supply is needed in other geographic positions, the stored aluminum fuel is sent to the energy release subsystem, chemical energy is converted into electric energy, the electric energy is supplied to the outside, and meanwhile, solid product alumina output by the energy release subsystem is returned to the alumina electrolysis device.
The invention has the following beneficial effects:
When the aluminum fuel energy storage system for coupling the SOFC and the gas turbine and the working method of the aluminum fuel energy storage system are specifically operated, (1) the energy density of aluminum as a metal fuel is high; (2) The aluminum fuel does not contain carbon, and the whole working process of the system does not produce pollutants, so that the aluminum fuel is a green low-carbon power generation technology; (3) The renewable energy source electric power is converted into the chemical energy of the metal fuel aluminum through electrochemical reaction for storage, and the metal fuel aluminum has the advantages of long energy storage period and capability of realizing permanent storage; (4) After the aluminum-steam combustion reaction in the whole process, the combustion solid product can be regenerated by electrolysis to obtain metal fuel aluminum again, and the fuel aluminum is recycled and regenerated in the whole process without consumption; (5) The hydrogen generated by aluminum-water combustion is coupled with a gas turbine through an SOFC to generate electricity, so that the electricity generation efficiency is high; (6) The metal fuel aluminum is used for storing energy, so that the global energy trade can be conveniently developed.
Drawings
FIG. 1 is a schematic diagram of an energy release subsystem according to the present invention;
fig. 2 is a schematic diagram of an energy storage subsystem according to the present invention.
The aluminum-steam combustion device comprises an aluminum-steam combustion chamber 1, a regenerator 2, a gas-liquid cooling separator 3, a steam turbine 4, a first generator 5, a condenser 6, a water supply pump 7, a hydrogen preheater 8, a solid oxide fuel cell 9, a gas turbine combustion chamber 10, a gas turbine 11, a second generator 12, an air preheater 13, an air compressor 14, an aluminum oxide electrolysis device 15 and a renewable energy power supply system 16.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, but not intended to limit the scope of the present disclosure. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
In the accompanying drawings, there is shown a schematic structural diagram in accordance with a disclosed embodiment of the invention. The figures are not drawn to scale, wherein certain details are exaggerated for clarity of presentation and may have been omitted. The shapes of the various regions, layers and their relative sizes, positional relationships shown in the drawings are merely exemplary, may in practice deviate due to manufacturing tolerances or technical limitations, and one skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions as actually required.
The aluminum fuel energy storage system for coupling the SOFC and the gas turbine comprises an energy release subsystem and an energy storage subsystem;
As shown in fig. 1, the energy release subsystem comprises a supplementing water input pipeline, an aluminum fuel supply pipeline, an aluminum-steam combustion chamber 1, a heat regenerator 2, a gas-liquid cooling separator 3, a steam turbine 4, a first generator 5, a condenser 6, a water feed pump 7, a hydrogen preheater 8, a Solid Oxide Fuel Cell (SOFC) 9, a gas turbine combustion chamber 10, a gas turbine 11, a second generator 12, an air preheater 13 and an air compressor 14;
The steam outlet of the steam turbine 4 is divided into two paths, wherein one path is communicated with a combustion steam inlet of the aluminum-steam combustion chamber 1, the other path is communicated with a hot side inlet of the condenser 6, a hot side outlet of the condenser 6 is communicated with an inlet of the water feeding pump 7 after being connected with an outlet of the water feeding pipeline in parallel through a pipeline, an outlet of the water feeding pump 7 is communicated with a cold side inlet of the regenerator 2, a cold side outlet of the regenerator 2 is communicated with a circulating working medium inlet of the aluminum-steam combustion chamber 1, a circulating working medium outlet of the aluminum-steam combustion chamber 1 is communicated with an inlet of the steam turbine 4, a fuel inlet of the aluminum-steam combustion chamber 1 is communicated with an aluminum fuel supply pipeline, aluminum fuel and steam are subjected to combustion exothermic reaction in the aluminum-steam combustion chamber 1, a reaction equation is 2Al+3H 2O＝Al2O3+3H2, solid product alumina generated by aluminum-steam combustion is discharged and collected through bottom gas of the aluminum-steam combustion chamber 1, high-gas mixture generated by aluminum-steam combustion enters a gas product outlet of the regenerator 2, the aluminum-steam combustion chamber is communicated with a gas product outlet of the side of the regenerator 2, the aluminum-steam combustion chamber is communicated with a condensate water inlet of the regenerator 3, and the condensate water outlet of the condenser 3 is communicated with the condensate water separator 3, and the condensate water outlet of the condensate is arranged in the condensate water separator is communicated with the hot side of the condensate separator 3;
The hydrogen outlet of the gas-liquid condensation separator 3 is communicated with the cold side inlet of the hydrogen preheater 8, the cold side outlet of the hydrogen preheater 8 is communicated with the anode inlet of the solid oxide fuel cell 9, the inlet of the air compressor 14 is communicated with the air in the external environment, the outlet of the air compressor 14 is communicated with the cold side inlet of the air preheater 13, the cold side outlet of the air preheater 13 is communicated with the cathode inlet of the solid oxide fuel cell 9, high-temperature hydrogen and air are subjected to electrochemical reaction to generate electric energy to externally supply power in the solid oxide fuel cell 9, the anode outlet of the solid oxide fuel cell 9 is communicated with the fuel inlet of the gas turbine combustion chamber 10, the cathode outlet of the solid oxide fuel cell 9 is communicated with the oxidant inlet of the gas turbine combustion chamber 10, the hydrogen which is not completely reacted in the solid oxide fuel cell 9 is combusted in the gas turbine combustion chamber 10 to generate a high-temperature high-pressure gas mixture, the outlet of the gas turbine 11 is communicated with the inlet of the gas turbine 11, the high-temperature high-pressure gas mixture is expanded in the gas turbine 11 to drive the second power generator 12 in the gas turbine combustion chamber 11, and the preheated by the hydrogen in the air combustion chamber 8 is exhausted from the hot side of the air preheater 8, and the hot side of the hydrogen preheater 8 is preheated by the hot side of the hydrogen inlet of the gas turbine combustion chamber 8.
As shown in fig. 2, the energy storage subsystem comprises an alumina electrolysis device 15 and a renewable energy power supply system 16; the energy storage subsystem is located in the electrolytic aluminum factory, the solid product alumina outlet at the bottom of the aluminum-steam combustion chamber 1 is communicated with the material inlet of the alumina electrolysis device 15, in addition, in practical application, solid product alumina discharged from the solid product alumina outlet at the bottom of the aluminum-steam combustion chamber 1 can be collected and then supplied to the alumina electrolysis device 15, the power interface of the alumina electrolysis device 15 is connected with the renewable energy power supply system 16, electrochemical reaction occurs in the alumina electrolysis device 15, aluminum liquid is generated on the cathode of the alumina electrolysis device 15, solid aluminum fuel is obtained after condensation and collection, and the solid aluminum fuel outlet of the alumina electrolysis device 15 is communicated with the fuel inlet of the aluminum-steam combustion chamber 1.
As a preferred embodiment of the present invention, the power output from the renewable energy power supply system 16 is derived from photovoltaic power generation, wind power generation, photo-thermal power generation, hydro power generation, and/or biomass power generation.
When the aluminum fuel energy storage system for coupling the SOFC and the gas turbine is specifically operated, aluminum oxide is used as a raw material, and when renewable energy sources in a power grid system generate excessive or surplus, molten aluminum oxide is electrolyzed by an aluminum oxide electrolysis device 15, and the renewable energy source power is converted into chemical energy of aluminum fuel through electrochemical reaction for storage. When renewable energy sources in the power grid system are insufficient in power generation or power supply is needed in other geographical positions, chemical energy of aluminum fuel is converted into electric energy through aluminum-steam combustion chamber 1, steam Rankine cycle power generation, solid oxide fuel cell 9 and gas turbine coupling power generation, and power supply is realized. The solid product alumina of the aluminum-steam combustion can reenter the whole energy storage subsystem, and the alumina fuel is obtained again through the electrolysis of the alumina electrolysis device 15, so that the recycling is realized, and the alumina is not consumed in the whole process.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (7)
1. An aluminum fuel energy storage system for coupling an SOFC and a gas turbine, which is characterized by comprising an energy release subsystem and an energy storage subsystem;
The energy storage subsystem comprises an alumina electrolysis device (15) and a renewable energy source power supply system (16), wherein a solid product alumina outlet of the energy release subsystem is communicated with a material inlet of the alumina electrolysis device (15), a power interface of the alumina electrolysis device (15) is connected with the renewable energy source power supply system (16), a solid alumina fuel outlet of the alumina electrolysis device (15) is communicated with a fuel inlet of the energy release subsystem, and an output end of the energy release subsystem is connected with an external power grid;
The energy release subsystem comprises a supplementing water input pipeline, an aluminum fuel supply pipeline, an aluminum-steam combustion chamber (1), a regenerator (2), a gas-liquid cold separator (3), a steam turbine (4), a first generator (5), a condenser (6), a hydrogen preheater (8), a solid oxide fuel cell (9), a gas turbine combustion chamber (10), a gas turbine (11), a second generator (12), an air preheater (13) and an air compressor (14);
The steam turbine (4) comprises two paths of steam outlets, wherein one path is communicated with a combustion steam inlet of an aluminum-steam combustion chamber (1), the other path is communicated with a hot side inlet of a condenser (6), a hot side outlet of the condenser (6) is communicated with a cold side inlet of a heat regenerator (2) after being connected with an outlet of a supplementing water input pipeline through a pipeline, a cold side outlet of the heat regenerator (2) is communicated with a circulating working medium inlet of the aluminum-steam combustion chamber (1), a circulating working medium outlet of the aluminum-steam combustion chamber (1) is communicated with an inlet of the steam turbine (4), an output shaft of the steam turbine (4) is connected with a driving shaft of a first generator (5), a fuel inlet of the aluminum-steam combustion chamber (1) is communicated with an aluminum fuel supply pipeline, a gas product outlet of the aluminum-steam combustion chamber (1) is communicated with a hot side inlet of the heat regenerator (2), and a hot side outlet of the heat regenerator (2) is communicated with an inlet of a gas-liquid condensation separator (3);
The hydrogen outlet of the gas-liquid condensation separator (3) is communicated with the cold side inlet of the hydrogen preheater (8), the cold side outlet of the hydrogen preheater (8) is communicated with the anode inlet of the solid oxide fuel cell (9), the inlet of the air compressor (14) is communicated with the air in the external environment, the outlet of the air compressor (14) is communicated with the cold side inlet of the air preheater (13), the cold side outlet of the air preheater (13) is communicated with the cathode inlet of the solid oxide fuel cell (9), the anode outlet of the solid oxide fuel cell (9) is communicated with the fuel inlet of the gas turbine combustion chamber (10), the cathode outlet of the solid oxide fuel cell (9) is communicated with the oxidant inlet of the gas turbine combustion chamber (10), the outlet of the gas turbine combustion chamber (10) is communicated with the inlet of the gas turbine (11), the output shaft of the gas turbine (11) is connected with the driving shaft of the second generator (12), the high-temperature exhaust outlet of the gas turbine (11) is communicated with the hot side inlet of the air preheater (13), the anode outlet of the solid oxide fuel cell (9) is communicated with the hot side inlet of the gas turbine (12) and the first generator (12) is connected with the hot side of the power grid (5).
2. Aluminium fuel energy storage system coupling SOFC and gas turbine according to claim 1, characterized in that the hot side outlet of the condenser (6) is in communication with the cold side inlet of the regenerator (2) via a feed pump (7) after the outlet of the make-up water input conduit is piped in parallel.
3. The aluminum fuel energy storage system coupling an SOFC and a gas turbine of claim 1 wherein in the aluminum-steam combustor (1) aluminum fuel reacts exothermically with steam by combustion in the equation 2al+3h 2O＝Al2O3+3H2, and solid product alumina from the aluminum-steam combustion is vented through the bottom of the aluminum-steam combustor (1) and collected.
4. An aluminium fuel energy storage system for coupling an SOFC and a gas turbine according to claim 3, characterised by that the high temperature gas mixture produced by aluminium-steam combustion is discharged through the gas product outlet of the aluminium-steam combustion chamber (1) and into the hot side of the regenerator (2).
5. The aluminum fuel energy storage system coupling an SOFC and a gas turbine according to claim 1, wherein in the solid oxide fuel cell (9) the high temperature hydrogen electrochemically reacts with air to produce electrical energy to power the outside.
6. The aluminum fuel energy storage system coupling an SOFC and a gas turbine of claim 1, wherein the power output by the renewable energy power supply system (16) is from photovoltaic power generation, wind power generation, photo-thermal power generation, hydro-power generation and/or biomass power generation.
7. An aluminum fuel energy storage method of coupling an SOFC and a gas turbine, wherein the aluminum fuel energy storage system of coupling an SOFC and a gas turbine according to claim 1 comprises the steps of:
When the renewable energy source in the power grid system generates excessive or surplus electricity, the molten aluminum oxide is electrolyzed by an aluminum oxide electrolysis device (15), and the renewable energy source electricity is converted into chemical energy of aluminum fuel through electrochemical reaction for storage; when renewable energy sources in the power grid system are insufficient in power generation or power supply is needed in other geographic positions, the stored aluminum fuel is sent to the energy release subsystem, chemical energy is converted into electric energy, the electric energy is supplied to the outside, and at the same time, solid product aluminum oxide output by the energy release subsystem is returned to the aluminum oxide electrolysis device (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210545713.0A CN114738062B (en) | 2022-05-19 | 2022-05-19 | Aluminum fuel energy storage system coupling SOFC and gas turbine and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210545713.0A CN114738062B (en) | 2022-05-19 | 2022-05-19 | Aluminum fuel energy storage system coupling SOFC and gas turbine and working method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114738062A CN114738062A (en) | 2022-07-12 |
| CN114738062B true CN114738062B (en) | 2024-04-26 |
Family
ID=82286912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210545713.0A Active CN114738062B (en) | 2022-05-19 | 2022-05-19 | Aluminum fuel energy storage system coupling SOFC and gas turbine and working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114738062B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105210223A (en) * | 2013-03-15 | 2015-12-30 | 埃克森美孚研究工程公司 | Integrated operation of molten carbonate fuel cells |
| CN111810267A (en) * | 2020-08-10 | 2020-10-23 | 西安热工研究院有限公司 | Comprehensive energy system based on aluminum fuel and working method thereof |
| CN112217230A (en) * | 2020-09-25 | 2021-01-12 | 中国人民解放军海军工程大学 | Fuel cell-gas turbine-wind energy-solar energy integrated power generation system |
| CN113285093A (en) * | 2021-05-14 | 2021-08-20 | 中国人民解放军海军工程大学 | Fuel cell-solar power generation system based on methanol steam reforming |
| CN113279832A (en) * | 2021-06-07 | 2021-08-20 | 大连海事大学 | System and method for waste heat utilization and LNG cold energy recovery of dual-fuel ship host with SOFC |
| CN214464425U (en) * | 2021-02-07 | 2021-10-22 | 西安热工研究院有限公司 | Aluminum-fired power generation system |
| CN113584530A (en) * | 2021-09-02 | 2021-11-02 | 西安热工研究院有限公司 | Back-pressure aluminum-steam combustion poly-generation energy storage system and working method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8778545B2 (en) * | 2011-03-31 | 2014-07-15 | General Electric Company | Recirculation complex for increasing yield from fuel cell with CO2 capture |
| US8865356B2 (en) * | 2012-01-11 | 2014-10-21 | Fuelcell Energy, Inc. | Electrical generation system and method for a hybrid fuel cell power plant |
| JP6080034B2 (en) * | 2012-08-22 | 2017-02-15 | 日本エクス・クロン株式会社 | How to use aluminum as a renewable fuel |
-
2022
- 2022-05-19 CN CN202210545713.0A patent/CN114738062B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105210223A (en) * | 2013-03-15 | 2015-12-30 | 埃克森美孚研究工程公司 | Integrated operation of molten carbonate fuel cells |
| CN111810267A (en) * | 2020-08-10 | 2020-10-23 | 西安热工研究院有限公司 | Comprehensive energy system based on aluminum fuel and working method thereof |
| CN112217230A (en) * | 2020-09-25 | 2021-01-12 | 中国人民解放军海军工程大学 | Fuel cell-gas turbine-wind energy-solar energy integrated power generation system |
| CN214464425U (en) * | 2021-02-07 | 2021-10-22 | 西安热工研究院有限公司 | Aluminum-fired power generation system |
| CN113285093A (en) * | 2021-05-14 | 2021-08-20 | 中国人民解放军海军工程大学 | Fuel cell-solar power generation system based on methanol steam reforming |
| CN113279832A (en) * | 2021-06-07 | 2021-08-20 | 大连海事大学 | System and method for waste heat utilization and LNG cold energy recovery of dual-fuel ship host with SOFC |
| CN113584530A (en) * | 2021-09-02 | 2021-11-02 | 西安热工研究院有限公司 | Back-pressure aluminum-steam combustion poly-generation energy storage system and working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114738062A (en) | 2022-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113584530B (en) | Back pressure type aluminum-steam combustion poly-generation energy storage system and working method | |
| CN111810267B (en) | Comprehensive energy system based on aluminum fuel and working method thereof | |
| Guo et al. | Determining the appropriate size of the electrical energy storage system of an energy process based on a solid oxide fuel cell and wind turbine | |
| CN111810269B (en) | Poly-generation power generation system based on metal fuel aluminum energy storage and working method thereof | |
| CN112814746A (en) | Aluminum-fired power generation system and working method thereof | |
| CN113756953B (en) | Gas turbine power generation system and power generation method | |
| Gao et al. | Thermodynamic analysis of solid oxide fuel cell based combined cooling, heating, and power system integrated with solar-assisted electrolytic cell | |
| CN115084580A (en) | Renewable energy in-situ energy storage system and method based on reversible solid oxide battery | |
| CN212454565U (en) | Comprehensive energy system based on aluminum fuel | |
| CN113793964A (en) | Thermal power peak regulation system based on solid oxide fuel cell and working method | |
| CN117647017A (en) | System and method for producing green ammonia by utilizing solar energy | |
| CN116317175B (en) | Solar-driven RSOC distributed poly-generation system and co-generation method thereof | |
| CN216155981U (en) | Back pressure type aluminum-steam combustion poly-generation energy storage system | |
| CN114738062B (en) | Aluminum fuel energy storage system coupling SOFC and gas turbine and working method | |
| CN116544467A (en) | Hydrogen energy type Carnot battery system and working method thereof | |
| CN114583207B (en) | Three-stage circulation power generation system based on solid oxide fuel cell | |
| CN215403079U (en) | Power generation system for coupling aluminum combustion and hydrogen fuel cell | |
| CN206397600U (en) | Mixing energy supplying system based on gas turbine and SOFC | |
| CN214660375U (en) | Energy system based on silicon fuel energy storage | |
| CN212454564U (en) | Poly-generation system for coupling aluminum energy storage and supercritical CO2 cyclic power generation | |
| CN111963269B (en) | Polygeneration system and method for coupling aluminum energy storage and supercritical CO2 cycle power generation | |
| CN113023671A (en) | Power generation system for coupling aluminum combustion and hydrogen fuel cell and working method thereof | |
| CN116591793A (en) | Aluminum supercritical water hydrogen-heat-power poly-generation system and working method | |
| CN217602729U (en) | New energy power generation and hydrogen production combined system | |
| CN113756954B (en) | Gas turbine power generation system and power generation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |