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Mini Methanol Steam Reforming Chamber

A technology of steam reforming and methanol, which is applied in the field of reforming chambers, can solve the problems that the coating technology is not well resolved, the purity requirements of the reaction materials are particularly strict, and the energy consumption of the system is increased, so as to improve the catalyst adhesion surface area and occupy space The effect of small, short response times

Active Publication Date: 2016-07-27
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small channel of the microchannel reactor, the purity requirements of the reaction materials are particularly strict; the large bed resistance drop will also increase the energy consumption of the system; the current coating technology of the catalyst in the microchannel has not been well solved.

Method used

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  • Mini Methanol Steam Reforming Chamber
  • Mini Methanol Steam Reforming Chamber

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specific Embodiment approach 1

[0018] Embodiment 1: The structure of the methanol steam reforming chamber described in this embodiment is an aluminum alloy body, and a micro-flow field structure 3 is designed on its surface. For the overall structure diagram, please refer to figure 1 and 2 , using the combination of the package end plate 2 and the aluminum alloy main body 1 to form the reaction chamber of the reforming chamber, as the reforming chamber of methanol water vapor, and one side of the reforming chamber has a micro-flow field structure.

[0019] The surface micro-flow field structure described in this embodiment means that gas flow channels with a width of 0.1-0.5 mm are respectively processed on the surface of the aluminum alloy main body, and the processed flow channels are used as the reforming chamber of the methanol steam reforming hydrogen production reactor. gas transmission channel.

[0020] like figure 1 As shown, in this embodiment, the micro-flow field structure 3 of the reforming ch...

specific Embodiment approach 2

[0022] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the mixed solution contains 10 g / L of sodium silicate and 1 g / L of sodium hypophosphite.

specific Embodiment approach 3

[0023] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the mixed solution contains 15 g / L sodium aluminate and 2.5 g / L sodium hypophosphite.

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Abstract

The invention discloses a miniature methanol and steam reforming chamber which is made from an aluminum alloy material. The miniature methanol and steam reforming chamber comprises an aluminum alloy main body, an aluminum alloy packaging end plate and a miniature flow field structure, wherein the miniature flow field structure is used as a gas circulating channel in the reforming chamber, and located between the aluminum alloy main body and the aluminum alloy packaging end plate and on the surface of the aluminum alloy main body. One layer of porous ceramic thin film grows on the surface of a runner of the miniature flow field structure inside the reforming chamber through a micro-arc oxidation method, and a reforming reaction catalysis layer is formed on the ceramic thin film through a full-filling method. According to the miniature methanol and steam reforming chamber, one layer of porous oxide ceramic film is prepared inside the reforming chamber by applying a micro-arc oxidation technology, so that the adhesive capacity of the reforming catalyst in the miniature runner of the reforming chamber is improved, the contact area between a reactant and the catalyst is increased, and the efficiency of reaction between methanol and steam and the conversion rate of the methanol are increased.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and relates to a reforming chamber used in a miniature methanol steam reforming reactor for hydrogen production. Background technique [0002] Fuel cell is a new type of high-efficiency battery that directly converts chemical energy into electrical energy. It has twice the working efficiency of traditional internal combustion engines, and its reaction products are clean and pollution-free. Proton Exchange Membrane Fuel Cell (PEMFC) is one of the most widely studied fuel cells. PEMFC is an electrochemical device that does not 2 and O 2 Direct combustion produces energy, but directly releases electricity through the fuel's self-reaction under catalyst catalysis, which is completely non-polluting to the environment. [0003] Compared with other types of fuel cells, PEMFC using hydrogen as fuel has a high mass specific power, which makes its application prospects good, but directly using pure H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/0612
CPCH01M8/0618Y02E60/50
Inventor 张宇峰张雪林刘晓为郭超
Owner HARBIN INST OF TECH
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