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Process for producing hydrogen from methanol

A technology for the production of hydrogen and methanol, applied in the field of hydrogen production, can solve the problems that the three possible devices are not very attractive

Active Publication Date: 2012-02-22
K M W E MANAGEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore the three possible devices discussed above are not very attractive

Method used

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Examples

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Embodiment Construction

[0024] Basically the method of the invention can be implemented in two different embodiments. The choice of a particular embodiment will depend, at least in part, on the intended use of the gas produced by methanolysis. For example, diluting the hydrogen with nitrogen and carbon dioxide is acceptable when the gas stream from the methanol conversion plant is once passed through the fuel cell and the remaining gas is combusted to generate heat. Passing a hydrogen-containing gas stream through a fuel cell in one go is attractive for everyday applications where the demand for thermal energy is relatively high. In this case, the following embodiments are applicable. The entire methanol stream is introduced into the first compartment and combusted with air oxygen, thereby generating heat. The resulting gas stream, which contains carbon dioxide and nitrogen from the air, is then introduced into a second step, where methanol is broken down into hydrogen and carbon monoxide, which is...

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PUM

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Abstract

The invention is directed to a process for producing hydrogen from methanol, comprising providing at least one flow of methanol and (1) catalytically converting part of the methanol or a fuel gas with air oxygen to carbon dioxide and water, while generating heat and (2) catalytically converting the methanol or the remaining part of the methanol at elevated temperature to hydrogen and carbon monoxide, followed by conversion of the carbon monoxide with water to hydrogen and carbon dioxide, wherein the heat generated in step (1) is sufficient to produce the elevated temperature required in step (2), wherein both steps (1) and (2) are carried out in a bed of sintered metal particles, the bed of sintered metal in step (2) having a surface that is catalytically active for the conversion of methanol to hydrogen, and wherein the beds of sintered metal particles are in heat exchanging relationship.

Description

technical field [0001] The present invention relates to a method for producing hydrogen from methanol by catalytically decomposing methanol into hydrogen and carbon monoxide, followed by converting carbon monoxide and water vapor into hydrogen and carbon dioxide to produce hydrogen. Background technique [0002] Currently, there is great interest in the development of fuel cells for the efficient generation of electrical energy. Fuel cells that operate at lower temperatures are most attractive. Fuel cells based on hydrogen and oxygen (air) show the best prospects for technological development and large-scale application. The storage of hydrogen poses a problem, which is an obstacle to the large-scale application of hydrogen fuel cells. Especially for mobile applications, the storage of hydrogen and its associated problems have delayed the deployment of many widespread applications. Mobile applications involve small devices such as laptop computers and automobiles. The lo...

Claims

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Application Information

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IPC IPC(8): C01B3/12C01B3/22H01M8/06C01B3/58B01J37/02B01J35/00B01J25/00
CPCB01J8/04B01J8/0492B01J8/0496B01J23/40B01J37/0219B01J37/0225B01J2208/00309C01B3/12C01B3/22C01B3/583C01B2203/0277C01B2203/0283C01B2203/044C01B2203/047C01B2203/066C01B2203/0811C01B2203/0827C01B2203/1064C01B2203/107C01B2203/1082C01B2203/1223C01B2203/82H01M8/0612Y02E60/50
Inventor 约翰·威廉·戈伊斯M·F·J·埃弗斯
Owner K M W E MANAGEMENT