A Micro-Reformer for Hydrogen Production with Catalyst Support of Fractal Structure

Abstract

The invention discloses a hydrogen production micro-reformer with a fractal-structure catalyst carrier. The micro-reformer comprises an upper cover plate, a lower cover plate, an evaporation plate, aplurality of upper reforming plates and a plurality of lower reforming plates, wherein an inlet pipe is arranged on the top surface of the upper cover plate, an outlet pipe is arranged on the bottom surface of the lower cover plate, and the evaporation plate, the upper reforming plates and the lower reforming plates are sealed between the upper cover plate and the lower cover plate sequentially from top to bottom; inlet drainage chambers and outlet drainage chambers are symmetrically formed on both sides of the evaporation plate and the chambers of the reforming plates, drainage columns are distributed in the drainage chambers, and rectangular reaction carrier plates are mounted in reaction chambers of the upper reforming plates and the lower reforming plates; and a fluid passage of a fractal structure is arranged on the upper surface of each reaction carrier plate, the initial shape of the fractal structure is rectangular, and conforms to the Selpinsky fractal law, and a flexible graphite pad is mounted on the mounting surface between every two adjacent plates. Through the micro-reformer, the specific surface area of the reaction carrier plates can be increased, the catalyst loading capacity can be improved, the efficiency of heat transfer and mass transfer of the reformer can be enhanced, and therefore the hydrogen production performance of the hydrogen production micro-reformer is improved.

Description

technical field [0001] The invention relates to a micro-reactor for hydrogen production of alcohols, in particular to a micro-reformer for hydrogen production with a fractal structure catalyst carrier. Background technique [0002] All aspects of human society’s food, clothing, housing and transportation are closely related to energy. However, the depletion of fossil fuels such as oil and coal, coupled with the increasingly serious problems of environmental pollution and greenhouse effect caused by the combustion of fossil energy, force humans to find a high-efficiency , clean renewable resources. As an ideal clean and renewable resource, hydrogen energy has the advantages of high combustion calorific value, clean and pollution-free, and is expected to become an ideal alternative energy source for fossil fuels, and is widely used in various occasions. Among the many hydrogen production methods, hydrogen production by on-site reforming of alcohols through hydrogen production...

AI Technical Summary

Problems solved by technology

However, the surface of the micro-protrusion platform distributed on the reaction carrier plate is relatively smooth and flat, the catalyst loading capacity is weak, the catalyst is easy to fall off, and the specific surface area is small, which is not conducive to the hydrogen production reaction.

In addition, the flow pulsation of the inlet gas of the reforming hydrogen production unit of the hydrogen production microreactor is relatively large, which is not conducive to the uniform flow velocity distribution in the reaction chamber

[0005] From the above analysis, it can be concluded that although the current design of microreactor structure and carrier has been improved, the current microreactor has a great impact on catalyst carrier loading capacity, reforming reaction time, carrier surface parameters, flow and heat transfer characteristics, etc. still to be studied

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