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Zero-carbon-emission solid oxide fuel cell and renewable energy source combined power generation system taking ammonia gas as carrier

A solid oxide, renewable energy technology, used in fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problems of intermittent and geographical restrictions, low energy conversion efficiency, etc., to achieve easy storage and transportation, The effect of high energy conversion efficiency and high density

Active Publication Date: 2022-07-08
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies of the existing technology, this application provides a zero-carbon emission solid oxide fuel cell and renewable energy combined power generation system using ammonia as a carrier, which solves the existing low energy conversion efficiency, intermittent and geographical restrictions and other difficult problems

Method used

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  • Zero-carbon-emission solid oxide fuel cell and renewable energy source combined power generation system taking ammonia gas as carrier

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like figure 1As shown, the zero-carbon emission solid oxide fuel cell and renewable energy combined power generation system using ammonia as a carrier includes ammonia storage device 1, ammonia cracking device 2, separator 3, nitrogen storage device 4, heat exchanger I5, Automatic three-way valve 6, solid oxide fuel cell 7, air compressor 8, heat exchanger II 9, valve 10, oxygen storage device 11, power storage battery 12, user terminal 13, combustion chamber 14, steam generator 15, dehumidifier Water tank 16, electrochemical ammonia synthesis equipment 17 and renewable energy power generation system 18; the output port of the ammonia storage device 1 is connected to the ammonia inlet of the ammonia cracking device 2, and the output port of the ammonia cracking device 2 is connected to the input port of the separator 3 The nitrogen outlet of the separator 3 is connected to the input port of the nitrogen storage device 4, the hydrogen outlet of the separator 3 is connect...

Embodiment 2

[0034] As described in Example 1, the zero-carbon emission solid oxide fuel cell and renewable energy combined power generation system using ammonia as a carrier, when the fuel cell cycle is executed, the ammonia in the ammonia storage device 1 enters the ammonia cracking device 2 for cracking It is a mixed gas containing nitrogen and hydrogen. The mixed gas enters the separator 3 through the output port of the ammonia cracking device 2. The separator 3 is equipped with a hydrogen permeable membrane to separate nitrogen and hydrogen; the nitrogen outlet of the separator 3 is connected to the nitrogen storage device. 4 inlet, store the separated nitrogen in the nitrogen storage device 4; the hydrogen outlet of the separator 3 is connected to the low-temperature side inlet of the heat exchanger I5, and the separated hydrogen is heated at the heat exchanger I5; The low-temperature side outlet of device I5 and the automatic three-way valve 6 enter the fuel electrode channel a of th...

Embodiment 3

[0036] As described in Embodiment 1, the zero-carbon emission solid oxide fuel cell and renewable energy combined power generation system using ammonia as a carrier, when the renewable energy cycle is executed, the renewable energy power generation system 18 is used as a power generation device to provide power storage respectively The battery 12, the user terminal 13, the steam generator 15, and the electrochemical ammonia synthesis equipment 17 supply power; the water is heated by the steam generator 15 into water vapor, and the water vapor enters the solid oxide fuel electrolysis through the water vapor inlet of the fuel electrode channel b The cell 7 is electrolyzed into hydrogen and oxygen, and the mixture of oxygen and water vapor flows out from the fuel channel a of the solid oxide fuel electrolytic cell 7, and is connected to the water remover 16 through the automatic three-way valve 6, and the remaining oxygen is removed after the water vapor is removed. Store in the o...

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Abstract

The invention discloses a zero-carbon-emission solid oxide fuel cell and renewable energy source combined power generation system taking ammonia gas as a carrier. Comprising an ammonia storage device, an ammonia cracking device, a separator, a nitrogen storage device, a heat exchanger I, an automatic three-way valve, a dehydrator, a solid oxide fuel cell, an air compressor, an oxygen storage device, a valve, a heat exchanger II, a power storage battery, a user side, a combustion chamber, a steam generator, electrochemical ammonia synthesis equipment and a renewable energy power generation system. When the solid oxide fuel cell and renewable energy combined power generation system executes fuel cell circulation, ammonia gas in an ammonia storage device serves as fuel, the solid oxide fuel cell serves as a power generation device, and power is supplied to a user side and a power storage cell. When renewable energy source circulation is executed, renewable energy sources, air and water are used for supplying power to the user side and the electricity storage battery and preparing ammonia gas.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a zero-carbon emission solid oxide fuel cell and renewable energy combined power generation system using ammonia as a carrier. Background technique [0002] Renewable energy power generation systems (such as photovoltaics, wind power, etc.) have the advantages of clean and pollution-free environmental protection, but the disadvantages of low energy conversion efficiency, intermittent and geographical restrictions of renewable energy power generation systems limit the development of renewable energy power generation systems . A solid oxide fuel cell (Solid Oxide Fuel Cell, SOFC) is an all-solid-state electrochemical power generation device that can directly convert the chemical energy stored in fuel and oxidant into electrical energy in an efficient and environmentally friendly manner at high temperature. SOFC can also run reversely in electrolysis mode. At this ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04007H01M8/04082H01M8/04089H01M8/0662
CPCH01M8/04089H01M8/04208H01M8/0662H01M8/04037Y02P20/133Y02E60/50
Inventor 钱琳郑克晴陶超薛金凯
Owner CHINA UNIV OF MINING & TECH