Small methanol reforming hydrogen production device system based on tail gas waste heat utilization

Abstract

The invention discloses a small methanol reforming hydrogen production device system based on tail gas waste heat utilization, and the system comprises a raw material storage tank, a raw material pump, a first regulating valve, a preheater, a reformer, a third regulating valve and a tail gas fan, wherein a thermometer is arranged on the reformer, a heat exchange interlayer is arranged on the outerside of the reformer, and the preheater adopts a heat exchanger structure; hot tail gas sequentially passes through a heat exchange interlayer on the outer side of a reformer and a hot channel of a preheater to be heated under traction of a tail gas fan, a methanol aqueous solution is preheated through a cold channel of the preheater under the conveying effect of a raw material pump and then enters a reforming catalyst bed layer of the reformer to react, and the reformer discharges a hydrogen product generated by the reaction. The small methanol reforming hydrogen production device system canbe used as an important component of portable fuel cell power supply system design and applied to a vehicle-mounted hydrogen fuel cell, hydrogen is produced through airborne reforming of methanol tobe used for an oxidation-reduction reaction, and the problems that hydrogen is difficult to transport and store can be solved.

Description

technical field [0001] This application relates to a small-scale methanol reforming hydrogen production plant system based on tail gas waste heat utilization. Background technique [0002] As a kind of clean energy, hydrogen energy has attracted the attention of scholars at home and abroad for its broad application and development prospects. The global research on hydrogen energy is becoming more and more popular, and the characteristics of hydrogen that are not easy to store and transport are the key factors hindering its continued development. Therefore, many on-site hydrogen production technologies have emerged. In addition to hydrogen production by electrolysis of water, hydrogen production by reforming low-carbon organic matter is also one of the research hotspots in recent years. Catalytic hydrogen production from methanol is widely used because of its low-cost raw materials, low toxicity, and easy transportation and handling. Among the four ways of methanol catalyt...

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Problems solved by technology

The small-scale methanol reforming hydrogen production device system of this application can be used as an important part of the design of a portable fuel cell power supply system. Difficult transportation and difficult storage

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