CN115498225A - Combined power generation system and method of hot ammonia turbine and fuel cell - Google Patents
Combined power generation system and method of hot ammonia turbine and fuel cell Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims abstract description 116
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 52
- 238000010248 power generation Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 239000001257 hydrogen Substances 0.000 claims abstract description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 12
- 238000005336 cracking Methods 0.000 claims description 11
- 238000000354 decomposition reaction Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000000197 pyrolysis Methods 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- -1 calcium imide Chemical class 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000003487 electrochemical reaction Methods 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 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
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
-
- 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
- Y02E60/50—Fuel cells
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention provides a thermal ammonia turbine and fuel cell combined power generation system and method, and belongs to the field of power generation systems. The problems of difficult hydrogen storage and transportation and high-temperature tail gas utilization are solved. The device comprises a heat exchanger, a blower, a reactor heating zone, a fuel cell anode, a fuel cell cathode, a gas compressor, a combustion chamber, a turbine and a generator; the method comprises the following steps of introducing ammonia gas into an inlet of a blower, communicating an outlet of the blower with an inlet of a reactor, communicating an outlet of the reactor with an anode inlet of a fuel cell, communicating an outlet of the compressor with a cold fluid inlet of a heat exchanger, communicating a cold fluid outlet of the heat exchanger with a cathode inlet of the fuel cell, communicating a cathode outlet of the fuel cell with an anode outlet of the fuel cell with an inlet of a heating zone of the reactor, communicating an outlet of the heating zone of the reactor with an inlet of a combustion chamber, communicating an outlet of the combustion chamber with an inlet of a turbine, communicating an outlet of the turbine with a hot fluid inlet of the heat exchanger, coaxially communicating the turbine with the compressor, and connecting the turbine with a generator. The invention is suitable for clean power generation.
Description
Technical Field
The invention belongs to the field of power generation systems, and particularly relates to a thermal ammonia turbine and fuel cell combined power generation system and method.
Background
With the gradual depletion of non-renewable energy and the increasing severity of environmental problems, increasing energy utilization rate or developing and utilizing novel clean energy is an important way to achieve carbon emission reduction, and hydrogen energy has attracted extensive attention as a clean energy. The fuel cell is the most favorable way for utilizing hydrogen energy at present, has the advantages of cleanness, no pollution, high efficiency, low noise and the like, and is considered to be one of the most promising power generation modes at present. However, hydrogen storage and transportation are difficult, which also becomes a major problem limiting hydrogen applications.
The fuel cell turbine hybrid power system combines the fuel cell with the power mechanical turbine, can fully utilize the tail gas of the fuel cell, has high working temperature of the solid oxide fuel cell, wide fuel adaptability and high tail gas temperature, has incompletely reacted fuel, can improve the power generation efficiency of the solid oxide fuel cell-turbine hybrid power system to 65 percent, and has good engineering application prospect. However, the fuel cell has a low utilization rate of the tail gas, and wastes the energy of the high-temperature tail gas, so that a power generation system which makes full use of the heat energy of the high-temperature tail gas and widens the application of hydrogen energy is needed to be designed.
Disclosure of Invention
In view of this, the present invention provides a combined power generation system of a thermal ammonia turbine and a fuel cell to solve the problems of difficult storage and transportation of hydrogen and utilization of high temperature tail gas.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a hot ammonia turbine and fuel cell combined power generation system comprises a heat exchanger, a blower, a reactor heating zone, a fuel cell anode, a fuel cell cathode, a gas compressor, a combustion chamber, a turbine and a power generator;
the method comprises the following steps of introducing ammonia gas into an inlet of an air blower, wherein an outlet of the air blower is communicated with an inlet of a reactor, an outlet of the reactor is communicated with an anode inlet of a fuel cell, air is introduced into an inlet of the air blower, an outlet of the air blower is communicated with a cold fluid inlet of a heat exchanger, a cold fluid outlet of the heat exchanger is communicated with a cathode inlet of the fuel cell, a cathode outlet of the fuel cell is communicated with an anode outlet of the fuel cell and an inlet of a heating area of the reactor, an outlet of the heating area of the reactor is communicated with an inlet of a combustion chamber, an outlet of the combustion chamber is communicated with an inlet of a turbine, an outlet of the turbine is communicated with a hot fluid inlet of the heat exchanger, a hot fluid outlet of the heat exchanger is communicated with the atmosphere, the turbine is coaxial with the air blower, and the turbine is connected with a generator.
Furthermore, the tail gas from the fuel cell cathode and the fuel cell anode provides heat for the ammonia decomposition reaction.
Furthermore, the temperature of the ammonia cracking gas is matched with the inlet temperature of the anode of the fuel cell, and the temperature of the air heated by the heat exchanger is matched with the inlet temperature of the cathode of the fuel cell.
Furthermore, the design and the arrangement of the heating zone of the reactor are satisfied with the good heat exchange with the reactor.
Further, the inner surface of the reactor is coated with a catalyst for decomposing ammonia.
Still further, the catalyst is a calcium imide and nickel combination.
Further, the fuel cell is a solid oxide fuel cell.
Furthermore, the cracking gas generated after the ammonia gas enters the reactor is a mixed gas of hydrogen and nitrogen.
Further, the inlet of the blower is in communication with a nitrogen source.
Another object of the present invention is to provide a power generation method of a combined power generation system of a thermal ammonia turbine and a fuel cell, which specifically comprises:
ammonia enters a blower to be pressurized, then enters the reactor to carry out cracking reaction, hydrogen and nitrogen are generated by decomposition, and cracked gas is directly introduced into the anode of the fuel cell;
air is pressurized by the air compressor and then is introduced into the heat exchanger for heat exchange so as to meet the requirement of the inlet temperature of the cathode of the fuel cell, and oxygen in the air introduced into the cathode of the fuel cell and hydrogen in pyrolysis gas introduced into the anode of the fuel cell are subjected to electrochemical reaction in the fuel cell to generate electric energy; the high-temperature tail gas of the fuel cell enters a reactor heating zone to provide heat for ammonia cracking reaction in the reactor, the tail gas flowing out of the reactor heating zone enters a combustion chamber to be combusted, then the gas flowing out of the combustion chamber is introduced into a turbine to impact an impeller to generate power, the gas at the outlet of the turbine is used as a heat source to enter a heat exchanger to heat the air at the inlet of the cathode of the fuel cell, the turbine drives an air compressor to work, and a generator converts the mechanical energy in the turbine into electric energy.
Compared with the prior art, the combined power generation system of the thermal ammonia turbine and the fuel cell has the following advantages:
(1) According to the thermal ammonia fuel cell turbine power generation system, ammonia is used as a hydrogen carrier, the advantages of economy, environmental protection and the like are achieved, the system temperature is well matched, high-temperature tail gas of the fuel cell and the turbine is efficiently utilized, and the problems that hydrogen is difficult to store and transport and the high-temperature tail gas is difficult to utilize are solved.
(2) According to the combined power generation system of the hot ammonia turbine and the fuel cell, the turbine tail gas is used for heating the air at the cathode inlet of the solid oxide fuel cell, an effective heat source is provided, and the efficient utilization of energy is realized;
(3) According to the combined power generation system of the hot ammonia turbine and the fuel cell, the tail gas of the fuel cell is combusted and then enters the turbine to expand to do work, so that the blades are driven to rotate to do work, and the fuel utilization rate is improved;
(4) The invention creates the combined power generation system of the hot ammonia turbine and the fuel cell, uses the high-temperature tail gas of the fuel cell as a heating heat source for ammonia decomposition reaction, thereby realizing comprehensive utilization of energy;
(5) The invention creates a combined power generation system of a thermal ammonia turbine and a fuel cell, and the efficiency of the combined power generation system of the solid oxide fuel cell and the turbine is higher than that of a single fuel cell or the turbine.
(6) The ammonia is a good hydrogen carrier, has obvious advantages in the aspects of economy, safety, environmental protection and the like compared with other fuels, has great development potential, and has the advantages of compact structure, high hydrogen production purity and the like when the ammonia is decomposed at high temperature to generate hydrogen, the ammonia is decomposed to prepare the hydrogen, the ammonia pyrolysis gas can be directly introduced into the anode of the solid oxide fuel cell to generate power, and the temperature of the ammonia pyrolysis gas is well matched with the inlet temperature of the anode of the solid oxide fuel cell.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
fig. 1 is a schematic diagram of a thermal ammonia turbine and fuel cell combined power generation system according to an embodiment of the present invention.
Description of reference numerals:
1. a heat exchanger; 2. a blower; 3. a reactor; 4. a reactor heating zone; 5. a fuel cell cathode; 6. a fuel cell anode; 7. a compressor; 8. a combustion chamber; 9. a turbine; 10. an electric generator.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood in specific cases by those of ordinary skill in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, a thermal ammonia turbine and fuel cell combined power generation system comprises a heat exchanger 1, a blower 2, a reactor 3, a reactor heating zone 4, a fuel cell anode 5, a fuel cell cathode 6, a compressor 7, a combustion chamber 8, a turbine 9 and a generator 10;
the method comprises the steps of introducing ammonia gas into an inlet of an air blower 2, communicating an outlet of the air blower 2 with an inlet of a reactor 3, communicating an outlet of the reactor 3 with an inlet of a fuel cell anode 6, introducing air into an inlet of an air compressor 7, communicating an outlet of the air compressor 7 with a cold fluid inlet of a heat exchanger 1, communicating a cold fluid outlet of the heat exchanger 1 with a cathode inlet 5 of the fuel cell, communicating an outlet of the cathode 5 of the fuel cell with an outlet of the anode 6 of the fuel cell with an inlet of a heating zone 4 of the reactor, communicating an outlet of the heating zone 4 of the reactor with an inlet of a combustion chamber 8, communicating an outlet of the combustion chamber 8 with an inlet of a turbine 9, communicating an outlet of the turbine 9 with a hot fluid inlet of the heat exchanger 1, communicating a hot fluid outlet of the heat exchanger 1 with the atmosphere, coaxially arranging the turbine 9 with the air compressor 7, and coaxially arranging the turbine 9 with a generator 10.
The off-gas from the fuel cell cathode 5 and the fuel cell anode 6 provides heat for the ammonia decomposition reaction.
The temperature of the ammonia cracking gas is matched with the inlet temperature of the anode 6 of the fuel cell, and the air is heated by the heat exchanger 1 and then is matched with the inlet temperature of the cathode 5 of the fuel cell.
The reactor heating zone 4 is designed and arranged to exchange heat well with the reactor 3.
The inner surface of the reactor 3 is coated with a catalyst for ammonia decomposition, and the catalyst is a combination of calcium imide (CaNH) and nickel (Ni).
The fuel cell is a solid oxide fuel cell. The cracking gas generated after the ammonia gas enters the reactor 3 is a mixed gas of hydrogen and nitrogen. The inlet of the blower 2 is in communication with a nitrogen source.
The invention fully utilizes the heat of the high-temperature tail gas of the solid oxide fuel cell and the high-temperature tail gas of the turbine, saves a gas heating device at the inlet of the cathode and the anode of the fuel cell, solves the heat source requirement of air preheating, saves an additional heater required by ammonia decomposition, and realizes the combined power generation of the hot ammonia turbine and the fuel cell.
Another objective of the present invention is to provide a power generation method of a thermal ammonia turbine and fuel cell combined power generation system, which specifically includes:
ammonia enters a blower 2 for pressurization, then enters a reactor 3 for pyrolysis reaction at high temperature (400 ℃), hydrogen and nitrogen are generated by decomposition, and the pyrolysis gas is directly introduced into a fuel cell anode 6;
air is pressurized by the air compressor 7 and then is introduced into the heat exchanger 1 for heat exchange so as to meet the requirement of the inlet temperature of the cathode 5 of the fuel cell, and oxygen in the air introduced into the cathode 5 of the fuel cell and hydrogen in pyrolysis gas introduced into the anode 6 of the fuel cell are subjected to electrochemical reaction in the fuel cell to generate electric energy; the tail gas of the fuel cell enters a reactor heating zone 4 to provide heat for ammonia cracking reaction in a reactor 3, the tail gas flowing out of the reactor heating zone 4 enters a combustion chamber 8 to be combusted, then the gas flowing out of the combustion chamber 8 is introduced into a turbine 9 to impact an impeller to generate power, the gas at the outlet of the turbine 9 is used as a heat source to enter a heat exchanger 1 to heat the air at the inlet of a cathode 5 of the fuel cell, the turbine 9 is coaxially connected with a compressor 7, the compressor 7 is driven by the turbine 9 to work, and a generator 10 converts mechanical energy in the turbine 9 into electric energy.
The hot ammonia turbine and fuel cell combined power generation system provided by the invention omits an air heating heat source at the cathode inlet of the solid oxide fuel cell and a heat source required by ammonia decomposition, combines the ammonia cracking and the high-temperature working condition of the solid oxide fuel cell, fully utilizes the tail gas of the fuel cell and the turbine, meets the requirements of the turbine and fuel cell combined power generation system on multiple aspects such as high power density and the like, realizes the comprehensive utilization of energy, and realizes the comprehensive utilization of energy.
The embodiments of the invention disclosed above are intended only to help illustrate the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and with the various embodiments.
Claims (10)
1. A thermal ammonia turbine and fuel cell cogeneration system, characterized by: the device comprises a heat exchanger (1), a blower (2), a reactor (3), a reactor heating zone (4), a fuel cell anode (5), a fuel cell cathode (6), a compressor (7), a combustion chamber (8), a turbine (9) and a generator (10);
introducing ammonia gas into an inlet of a blower (2), wherein an outlet of the blower (2) is communicated with an inlet of a reactor (3), an outlet of the reactor (3) is communicated with an inlet of a fuel cell anode (6), air is introduced into an inlet of a compressor (7), an outlet of the compressor (7) is communicated with a cold fluid inlet of a heat exchanger (1), a cold fluid outlet of the heat exchanger (1) is communicated with a cathode inlet (5) of the fuel cell, an outlet of a cathode (5) of the fuel cell is communicated with an outlet of the anode (6) of the fuel cell and an inlet of a heating zone (4) of the reactor, an outlet of the heating zone (4) of the reactor is communicated with an inlet of a combustion chamber (8), an outlet of the combustion chamber (8) is communicated with an inlet of a turbine (9), an outlet of the turbine (9) is communicated with a hot fluid inlet of the heat exchanger (1), a hot fluid outlet of the heat exchanger (1) is communicated with the atmosphere, the turbine (9) and the compressor (7) are coaxial, and the turbine (9) is connected with a generator (10).
2. The system of claim 1, wherein the thermal ammonia turbine and fuel cell cogeneration system comprises: the tail gases of the cathode (5) and the anode (6) of the fuel cell provide heat for the ammonia decomposition reaction.
3. The system of claim 1, wherein the thermal ammonia turbine and fuel cell cogeneration system comprises: the temperature of the ammonia pyrolysis gas is matched with the inlet temperature of the anode (6) of the fuel cell, and the air is heated by the heat exchanger (1) and then is matched with the inlet temperature of the cathode (5) of the fuel cell.
4. The system of claim 1, wherein the thermal ammonia turbine and fuel cell cogeneration system comprises: the design and the arrangement of the heating zone (4) of the reactor meet the requirement of good heat exchange with the reactor (3).
5. The system of claim 1, wherein the thermal ammonia turbine and fuel cell cogeneration system comprises: the inner surface of the reactor (3) is coated with a catalyst for decomposing ammonia.
6. The system of claim 5, wherein the thermal ammonia turbine and fuel cell cogeneration system comprises: the catalyst is a combination of calcium imide and nickel.
7. The system of claim 1, wherein the system comprises: the fuel cell is a solid oxide fuel cell.
8. The system of claim 1, wherein the thermal ammonia turbine and fuel cell cogeneration system comprises: and the cracked gas generated after the ammonia gas enters the reactor (3) is a mixed gas of hydrogen and nitrogen.
9. The system of claim 1, wherein the thermal ammonia turbine and fuel cell cogeneration system comprises: the inlet of the blower is in communication with a nitrogen source.
10. A method of generating power for a thermal ammonia turbine and fuel cell combined power generation system according to any one of claims 1 to 9, wherein: the method specifically comprises the following steps:
ammonia enters a blower (2) for pressurization, then enters a reactor (3) for cracking reaction, hydrogen and nitrogen are generated by decomposition, and the cracking gas is directly introduced into a fuel cell anode (6);
air is pressurized by the air compressor (7) and then is introduced into the heat exchanger (1) for heat exchange so as to meet the requirement of the inlet temperature of the cathode (5) of the fuel cell, and oxygen in the air introduced into the cathode (5) of the fuel cell and hydrogen in pyrolysis gas introduced into the anode (6) of the fuel cell are subjected to electrochemical reaction in the fuel cell to generate electric energy; tail gas of the fuel cell enters a reactor heating area (4) to provide heat for ammonia cracking reaction in a reactor (3), the tail gas flowing out of the reactor heating area (4) enters a combustion chamber (8) to be combusted, then gas flowing out of the combustion chamber (8) is introduced into a turbine (9) to impact an impeller to generate power, gas at the outlet of the turbine (9) serves as a heat source to enter a heat exchanger (1) to heat air at the inlet of a cathode (5) of the fuel cell, the turbine (9) drives a gas compressor (7) to work, and a generator (10) converts mechanical energy in the turbine (9) into electric energy.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116207309A (en) * | 2023-04-06 | 2023-06-02 | 上海交通大学 | SOFC power generation device with efficient ammonia decomposition function for ammonia fuel ship |
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| KIYA OGASAWARA 等: "Ammonia Decomposition over CaNH-Supported Ni Catalysts via an-NH2-Vacancy-Mediated Mars-van Krevelen Mechanism", 《AMERICAN CHEMICAL SOCIETY CATALYSIS》, vol. 11, 19 August 2021 (2021-08-19), pages 11005 - 11015, XP093054995, DOI: 10.1021/acscatal.1c01934 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116207309A (en) * | 2023-04-06 | 2023-06-02 | 上海交通大学 | SOFC power generation device with efficient ammonia decomposition function for ammonia fuel ship |
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