A self-heating circular methanol reforming reactor for hydrogen production

Abstract

The invention discloses a self-heating type annular methanol reforming hydrogen production reactor. The reactor is divided into evaporation chamber, combustion chamber and reforming reaction chamber from inside to outside; the innermost evaporation chamber includes evaporation chamber tube; the middle layer combustion chamber consists of evaporation chamber tube, combustion chamber tube, combustion chamber top Composed of the combustion chamber cover and the bottom cover of the combustion chamber, it is an annular space, in which honeycomb silicon carbide is embedded; There is honeycomb silicon carbide; the reactants enter each cavity at the same time to react, to achieve the balance of heat absorption and heat release, and realize continuous hydrogen production. According to the circular circumference of the same area, the present invention achieves good sealing performance, and can adjust the size of each ring before manufacturing according to actual reaction requirements to achieve higher power density; meanwhile, it has good thermal conductivity and low density and mass Lightweight, it can homogenize the flow rate distribution of reactants, increase the conversion rate of reactants, and improve the flow directionality.

Description

technical field [0001] The invention belongs to a methanol reforming hydrogen production reactor, in particular to a self-heating ring methanol reforming hydrogen production reactor. [0002] technical background [0003] Since the 21st century, with the gradual depletion of fossil energy, people have been looking for and developing clean and renewable energy. Among the current new energy sources, hydrogen energy has the advantages of high combustion calorific value, low pollution, and renewable energy, and is an ideal alternative energy source for fossil fuels. [0004] Hydrogen fuel cells are one of the main ways to utilize hydrogen energy. It is a high-efficiency power generation device, not limited by the Carnot cycle, and has the advantages of high energy conversion efficiency and clean reaction products. [0005] At present, the main bottleneck of the development of hydrogen energy economy lies in the difficulty of hydrogen storage. The existing mobile hydrogen stora...

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Problems solved by technology

[0009] In order to solve the problems of different reaction rates of methanol aqueous vaporization reaction, methanol catalytic combustion reaction and methanol steam reforming reaction in the self-heating methanol steam reforming reactor in the background technology, and the problem of difficult sealing, the present invention provides a self-heating annular methanol Reform the hydrogen production reactor to optimize the reactor structure, improve the compactness and power density of the reactor, and improve the tightness of the reactor

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