Reaction device for reforming and producing hydrogen from methanol vapor

Abstract

The invention discloses a reaction device for reforming and producing hydrogen from methanol vapor. The reaction device comprises a reactor body, wherein the reactor body is internally provided with a reaction chamber; the cross section of the reaction chamber is circular and is divided into an evaporation part and a reforming part from left to right; a methanol solution feeding hole is formed in the left end of the evaporation part; a first evaporation plate, a second evaporation plate and a third evaporation plate are sequentially arranged from left to right inside the evaporation part; the three evaporation plates are partitioned through annular gaskets; stripy through grooves parallel to one another are formed in the first evaporation plate; circular through holes which are distributed in an annular array are formed in the second evaporation plate and the third evaporation plate; a hydrogen discharge hole is formed in the right end of the reforming part; and at least two metal carrier reaction plates are sequentially arranged from left to right inside the reforming part, that is, the metal carrier reaction plates are arranged in an overlapped manner. By adopting the reaction device, the reaction pressure drop is greatly reduced, and the fluid can be distributed uniformly. In addition, the phenomenon of cold point in the reaction is effectively avoided, and the hydrogen production efficiency and the methanol conversion rate are improved.

Description

technical field [0001] The invention specifically relates to a hydrogen production reaction device for steam reforming of methanol. Background technique [0002] The energy crisis and environmental pollution problems faced by human beings are becoming more and more serious. Hydrogen energy has attracted widespread attention due to its high combustion calorific value, cleanness and environmental protection. In recent years, the proton exchange membrane fuel cell (PEMFC) technology using pure hydrogen as fuel has basically matured, but the current pure fuel cell driven cars are only in the prototype stage, the main reason is that fuel cell vehicles generally use pure hydrogen as fuel. Acquisition and construction of hydrogen refueling stations are currently a major problem in the promotion of fuel cell vehicles: hydrogen has a low boiling point, is flammable and explosive, and is not easy to compress and liquefy. Storage takes up a lot of space, and transportation and filling...

AI Technical Summary

Problems solved by technology

[0004] Although the methanol steam reforming microreactor for hydrogen production has many advantages, it is still in its infancy and the technologies are not yet mature. In the currently developed microreactor for methanol steam reforming for hydrogen production, the methanol conversion rate Low hydrogen production, uneven fluid distribution, and cold spot effects in the reaction process still hinder the progress and development of methanol steam reforming hydrogen production microreactors

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