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Direct carbon solid oxide fuel cell stack and power generating apparatus thereof

A technology of fuel cell stacks and solid oxides, applied in fuel cells, fuel cell additives, electrochemical generators, etc., can solve the problems of slow Boudouard reaction, increase the reaction rate, increase the contact area, and avoid a large amount of stacked effect

Active Publication Date: 2019-04-09
创电(上海)新能源科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] Purpose of the invention: the purpose of the present invention is to provide a direct carbon solid oxide fuel cell stack and its power generation device to solve the problem of too slow Boudouard reaction due to the accumulation of a large amount of carbon fuel

Method used

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  • Direct carbon solid oxide fuel cell stack and power generating apparatus thereof
  • Direct carbon solid oxide fuel cell stack and power generating apparatus thereof
  • Direct carbon solid oxide fuel cell stack and power generating apparatus thereof

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the direct carbon solid oxide fuel cell stack and its power generation device of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] Such as figure 1 As shown, the direct carbon solid oxide fuel cell stack power generation device in this embodiment includes a SOFC stack 1, an air inlet pipe 2, an air outlet hole 3, a fixed end cover 4, and a CO 2 Outlet pipe 5, CO 2 Combiner box 6, transportation pipeline 7, filter 8, CO 2 Recovery pipeline 9, compressor 10, first control valve 11, intake valve 12, CO 2 Gas cylinder 13, CO 2 Gas outlet pipeline 14, gas outlet valve 15, carbon recovery pipeline 16, second control valve 17, carbon feeder 18, carbon delivery pipe 19, third control valve 20, gas-carbon mixing pipe 21, combiner box 22, mixing inlet pipe 23 and Stack support 24. A number of air inlet pipes 2...

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Abstract

The present invention discloses a direct carbon solid oxide fuel cell stack and a power generating apparatus thereof. The CO2 gas cylinder provides high pressure CO2 to be mixed with carbon powder supplied to a carbon machine. Then a mixture of CO2 and the carbon power enters the stack by using a mixed inlet pipe to make the mixture of CO2 and the carbon powder spirally flow inside the stack. In addition, adjacent upper and lower SOFC cells in the stack are staggered by 90 degrees, the adjacent cells are reversely arranged, and the spirally flowing carbon fuel is disturbed, so that the carbonfuel is uniformly distributed on a surface of an anode of the cell. After reaction, tail gas is filtered and separated, and then is recycled and reused by using a CO2 recycling pipeline and a carbon recycling pipeline to improve efficiency. After air enters a stack reaction, the air is discharged through an air outlet hole at the bottom of an air chamber, and the fuel is reheated by using a heat preservation effect of an air layer and high temperature residual heat of the discharged air, and heat compensation is provided for a Boudouard reaction, to ensure that the Boudouard reaction is quickly and steadily performed.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a direct carbon solid oxide fuel cell stack and a power generating device thereof. Background technique [0002] Hydrogen is the most ideal fuel for solid oxide fuel cells (SOFC), but as a secondary energy source, hydrogen cannot be directly obtained and the storage and transportation technology is not yet mature, so the cost is relatively high. Among the many SOFC fuels, carbon fuel has the most extensive sources, and its high energy density has basically no storage and transportation problems. Therefore, SOFC directly using carbon fuel (DC-SOFC) has received more and more attention. The total reaction of DC-SOFC is: C+O 2 =CO 2 , the entropy change of this reaction is very small, and the carbon fuel is not in contact with the air, which is beneficial to CO 2 reuse and recycling. When starting the DC-SOFC, a certain amount of CO 2 make it react with carbon fuel at high temperature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/241H01M8/2455H01M8/2484H01M8/04082
CPCH01M8/04201H01M8/04216H01M8/241H01M8/2455H01M8/2484Y02E60/50
Inventor 孔为韩振黄红艳张梦彤
Owner 创电(上海)新能源科技有限公司
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