Miniature methanol and steam reforming chamber

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 hydrogen production reactor. Background technique [0002] A 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 a traditional internal combustion engine, 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, it does not pass the fuel H 2 and O 2 The energy is generated by direct combustion, but the fuel directly releases electric energy through the self-reaction of the catalyst under the catalysis of the catalyst, 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 ...

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.

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