Laminated double-sided multi-serpentine microchannel reforming hydrogen production reactor

Abstract

The invention discloses a laminated double-sided multi-serpentine microchannel reforming hydrogen production reactor which comprises an upper cover board, a lower cover board, an evaporation plate, a plurality of upper reforming plates and lower reforming plates, wherein the plurality of upper reforming plates are arranged between the evaporation plate and the lower reforming plates; a flexible graphite pad is arranged between any two adjacent upper reforming plates; an evaporation cavity is formed in the upper surface of the evaporation plate; an inlet drainage cavity and an outlet drainage cavity, which are communicated with each other, are symmetrically connected with two sides of the evaporation cavity respectively; reaction cavities are formed in the centers of the upper reforming plates and the lower reforming plates; the inlet drainage cavity and the outlet drainage cavity, which are communicated with each other, are symmetrically connected with two sides of each reaction cavity respectively; reaction carrier sheets are arranged in the reaction cavities of the upper reforming plates and the lower reforming plates; and groove structures with a plurality of serpentine microchannels are symmetrically formed in the upper surfaces and the lower surfaces of the reaction carrier sheets respectively up and down. According to the laminated double-sided multi-serpentine microchannel reforming hydrogen production reactor, the specific surface area of the reaction carrier sheets can be significantly increased; adhesion of a catalyst is improved; and the reaction pressure drop can be effectively reduced, so that the alcohol conversion rate and the hydrogen production speed are improved.

Description

technical field [0001] The invention relates to a micro-reactor for hydrogen production of alcohols, in particular to a stacked double-sided multi-serpentine micro-channel reforming hydrogen production reactor. Background technique [0002] In today's era, environmental pollution and clean energy are one of many hot issues. As a renewable energy source, hydrogen energy is widely used in various occasions due to its advantages of high efficiency and zero pollution. Among the many hydrogen production methods, hydrogen production by steam reforming has the advantages of high hydrogen production and good long-term stability, and has attracted worldwide attention. In the hydrogen production process of steam reforming, methanol has a high hydrogen-to-carbon ratio, but the reaction temperature and product CO concentration are low, so it is widely used. [0003] Chinese invention patent (application number 200610104598.4) discloses a metal foam catalytic reforming reactor. The re...

AI Technical Summary

Problems solved by technology

This reactor contains three layers of plate-shaped reaction carriers, all of which have a micro-boss array structure, forming two upper and lower channels. Among them, the upper channel is a hydrogen production channel by catalytic reforming, and the lower channel is a combustion channel. The reactor can operate by self-heating Hydrogen production, but the surface of the reaction carrier is relatively smooth, which is not conducive to the coating of the catalyst

[0005] Although researchers from various countries have conducted a lot of in-depth research on micro-reformers for hydrogen production by reforming alcohols, the current micro-reactors still need to be improved in terms of alcohol conversion rate, reactor specific surface area, pressure drop, and heat transfer. , it is necessary to design a microreactor with advantages such as higher heat and mass transfer efficiency, larger specific surface area, and lower pressure drop

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