Heat coupling methanol reforming hydrogen production fuel cell system

A fuel cell system, reforming hydrogen production technology, applied in fuel cells, fuel cell additives, fuel cell control, etc., can solve problems such as stack heat dissipation, reduce maintenance time, reduce replacement costs, and improve system efficiency. Effect

Inactive Publication Date: 2021-06-18
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem of stack heat dissipation in the prior art, the present invention provides a heat-coupled methanol reforming hydrogen production fuel cell system

Method used

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  • Heat coupling methanol reforming hydrogen production fuel cell system
  • Heat coupling methanol reforming hydrogen production fuel cell system

Examples

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Embodiment 1

[0018] Taking a 1kW fuel cell system as an example, a normal system needs to be equipped with a radiator, and the heat dissipation is about 400-700W. In this scheme, the system does not need to be equipped with a radiator, and the discharge heat of the stack can be fully utilized, and only part of the hot exhaust gas is discharged from the channel 7, which greatly improves the system efficiency.

[0019] A heat-coupled methanol reforming hydrogen production fuel cell system consists of the following parts:

[0020] Reforming chamber: methanol reforming hydrogen production reaction occurs, reforming methanol raw material into H 2 and CO 2 . Its working temperature is about 200 ~ 300 ℃.

[0021] Combustion chamber: Oxidation reaction occurs to release heat, methanol, anode tail gas or other raw materials are mixed with oxidant (air, oxygen, etc.), and catalytic combustion is carried out on the surface of the combustion catalyst to provide heat for the reforming chamber and ga...

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Abstract

The invention belongs to the field of fuel cells, and particularly relates to a heat coupling methanol reforming hydrogen production fuel cell system and an operation method. The system comprises reforming chambers, combustion chambers, vaporizing chambers and a galvanic pile, wherein the vaporizing chambers, the combustion chambers and the reforming chambers are symmetrically and sequentially distributed on two sides of the galvanic pile. According to the fuel cell system, an additional heat dissipation structure is not needed, and only heat needs to be transferred to the vaporizing chambers on the two sides, so that the system efficiency is improved. If the power level needs to be improved, only the arrangement mode of the structure needs to be repeated, so that the machining cost and the mold opening cost are greatly reduced; and meanwhile when parts are damaged, the structure can also reduce the maintenance time and the replacement cost.

Description

technical field [0001] The invention belongs to the field of fuel cells, and in particular relates to a heat-coupled methanol reforming hydrogen production fuel cell system structure and operation method. Background technique [0002] Fuel cells are developing rapidly at present, and their application fields are extremely extensive. The important factors limiting the development of hydrogen fuel cells are practical problems such as hydrogenation, hydrogen storage, and hydrogen transportation. Methanol reforming hydrogen production fuel cell can apply methanol fuel in the field of fuel cells, which solves a series of problems of hydrogen as fuel. The fuel cell for hydrogen production by methanol reforming also has its disadvantages. The operating temperature of the stack is about 160°C, and a large amount of heat needs to be dissipated; while the hydrogen production by methanol reforming needs to maintain the working temperature at about 200-300°C, which needs to absorb a la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04007H01M8/04089H01M8/04298H01M8/0612H01M8/2465
CPCH01M8/04007H01M8/04074H01M8/0618H01M8/0625H01M8/2465H01M8/04298H01M8/04089Y02E60/50
Inventor 杨林林高越孙公权
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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