The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2010
Filed:
Jul. 24, 2004
Michael Blumenfeld, Dortmund, DE;
Vincent Liu, Bochum, DE;
Bernd Mielke, Bochum, DE;
Marcus Michel, Unna, DE;
Michael Blumenfeld, Dortmund, DE;
Vincent Liu, Bochum, DE;
Bernd Mielke, Bochum, DE;
Marcus Michel, Unna, DE;
Uhde GmbH, Dortmund, DE;
Abstract
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.