Laminating type micro-convex-table array type micro-reactor for steam reforming of methanol

Abstract

The invention discloses a laminating type micro-convex-table array type micro-reactor for steam reforming of methanol. The micro-reactor is composed of an upper cover plate, an evaporation unit, a first heating plate, three to five reforming-reaction hydrogen-production units, a second heating plate and a lower cover plate in laminated mode. Each reforming-reaction hydrogen-production unit comprises a base plate, a middle auxiliary flat plate, a flow guiding plate and a reaction carrier. Catalyzer is arranged on each reaction carrier and is used for reaction of steam reforming of methanol. Energy needed for reforming of the micro-reactor is provided by the heating plates which are provided with heating rods. When hydrogen is produced, reforming fuels (such as methanol and water) enter an evaporation cavity through flow channel holes in the upper cover plate, the reforming fuels absorb heat and become overheated gas after the temperature of the reforming fuels rises, then the overheated gas flows into the reforming-reaction hydrogen-production units, the reaction of steam reforming of methanol is carried out, and the hydrogen is produced. The specific surface area of the micro-reactor is large, the catalyzer can be filled and replaced conveniently, the whole structure is easy to assemble, the scale is simple to expand, manufacturing cost is low, efficiency is high, and the micro-reactor can be used in occasions that the hydrogen is produced through reforming of alcohols with medium or small flow.

Description

technical field [0001] The invention relates to a microreactor for hydrogen production by reforming alcohols, in particular to a microreactor for hydrogen production by reforming with stacked micro-protrusion platform arrays. technical background [0002] With the rapid development of social economy and the continuous improvement of people's living standards, cars have gradually integrated into people's lives. However, while the increasing number of automobiles improves people's lives, it also consumes a large amount of fossil fuels such as oil, causing serious environmental pollution. According to the statistics of the World Energy Organization: According to the current growth rate of demand, all the proven oil reserves in the world will be exhausted around 2054. At that time, what power to drive the car will be a major problem faced by mankind. Therefore, in order to ensure the sustainable development of the automobile industry and the human ecological environment, the de...

AI Technical Summary

Problems solved by technology

However, the reactor is only designed as a two-layer microchannel reactor, and the cascading design of the reactor has not yet been carried out.

[0009] To sum up, the existing traditional hydrogen production reactors are relatively bulky, and a large amount of energy is stored in the fuel equipment, which is very dangerous

Moreover, the reforming hydrogen production reaction is limited by heat and mass transfer efficiency, which cannot achieve optimal reactor performance

Although the micro stacked hydrogen production reactor has the advantages of large specific surface area and high heat and mass transfer efficiency, there are still problems in the preparation and design of microchannel reaction carriers.

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