Uhde Gmbh

Bernd Mielke

Vincent Liu

Michael Blumenfeld

Marcus Michel

The invention relates to a method for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer () by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtained carbon monoxide with steam occurs in a downstream conversion step in order to form carbon monoxide and water. Carbon dioxide is removed from the converted gas flow () by gas washing (), and the washed hydrogen-rich gas flow () is subsequently divided in a pressure-swing adsorption system () into a product gas flow () made of hydrogen and a waste gas flow (). The waste gas flow () is introduced with hydrogen (), which is separated from the gas flow () after gas washing, into a reformer () which is essentially a carbon-free combustible gas, and is combusted there. The invention also relates to a system for carrying out the method.

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Bochum, Germany

Bernd Mielke