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:
Jun. 11, 2013
Filed:
Mar. 27, 2008
Takuya Niitsuma, Yokohama, JP;
Shunsuke Maekawa, Yokohama, JP;
Yoshihiro Kobori, Yokohama, JP;
Nippon Oil Corporation, Tokyo, JP;
Abstract
When the production of hydrogen and the recovery of carbon dioxide are simultaneously performed by using as a raw material a carbon-containing fuel, the increase of the system cost is suppressed and the efficiency is improved. Disclosed is a method for producing hydrogen and recovering carbon dioxide which method produces hydrogen from a carbon-containing fuel and recovers carbon dioxide, including: a hydrogen-containing gas producing step of obtaining a hydrogen-containing gas that contains hydrogen and carbon dioxide by reforming a carbon-containing fuel; a PSA step of separating, by using a pressure swing adsorption apparatus, the hydrogen-containing gas into a first hydrogen-enriched gas that is a gas enriched in hydrogen and a PSA offgas that is a gas enriched in the components other than hydrogen; and a step of obtaining, by treating the PSA offgas with a hydrogen separation membrane and a carbon dioxide separation membrane, a second hydrogen-enriched gas that is a gas enriched in hydrogen and a carbon dioxide-enriched gas that is a gas enriched in carbon dioxide. Also disclosed is an apparatus for embodying the method.