Equipment for preparing hydrogen from methanol and water

Abstract

The invention discloses equipment for preparing hydrogen from methanol and water. The equipment comprises a liquid storage container, a raw material conveying device, hydrogen production equipment, a film separation device and a tail gas heat exchange device, wherein the liquid storage container is used for storing liquid methanol and water; the raw material conveying device is used for conveying the raw materials, namely, methanol and water, in the liquid storage container to the hydrogen production equipment so as to produce hydrogen; the produced hydrogen is conveyed to the film separation device to be separated; the tail gas heat exchange device comprises a second heat exchanger; the second heat exchanger takes the raw materials, namely, methanol and water, as cooling mediums to cool down a tail gas; an inlet of a heat exchange tube of the second heat exchanger is connected with the liquid storage container through a pipeline; an outlet of the heat exchange tube of the second heat exchanger is connected with the hydrogen production equipment; the temperature of the raw materials is raised through heat exchange of the heat exchange tube of the second heat exchanger, and meanwhile the temperature of the tail gas is reduced. Due to adoption of the equipment for preparing hydrogen from methanol water, a waste gas treatment device does not need to be arranged, so that the size of the equipment is reduced, and the mobility of the equipment is improved.

Description

technical field [0001] The invention belongs to the technical field of hydrogen preparation, and relates to a device for preparing hydrogen, in particular to a device for preparing hydrogen by using methanol water. Background technique [0002] Among the many new energy sources, hydrogen energy will become the most ideal energy source in the 21st century. This is because, in the case of burning the same weight of coal, gasoline and hydrogen, hydrogen produces the most energy, and the product of its combustion is water, without ash and waste gas, and will not pollute the environment; are carbon dioxide and sulfur dioxide, which can produce the greenhouse effect and acid rain, respectively. The reserves of coal and oil are limited, and hydrogen is mainly stored in water. The only product after combustion is water, which can continuously produce hydrogen and never run out. [0003] Hydrogen is a colorless gas. Burning one gram of hydrogen releases 142 kilojoules of heat, whi...

AI Technical Summary

Problems solved by technology

The pressure swing adsorption method has high energy consumption and large equipment, and is not suitable for small-scale hydrogen production

[0016] In addition, due to the high temperature of the exhaust gas in the existing hydrogen production equipment, it is usually necessary to set the exhaust gas output channel to discharge the exhaust gas

The setting of the exhaust gas output channel not only increases the volume of the equipment, is not easy to carry, but also has the risk of scalding people

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