Method and apparatus for converting carbon monoxide and water into carbon dioxide and hydrogen, with removal of one or more products

US8623240B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Manfred Baldauf · Erlangen, DE
• Carsten Graeber · Erlangen, DE
• Marc Hanebuth · Hamburg, DE
• Gerhard Zimmermann · Höchstadt an der Aisch, DE

Key dates

• Filing date: Jun 25, 2010
• Grant date: Jan 7, 2014
• Expiry date: Jun 25, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B3/22
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for converting carbon monoxide and water into carbon dioxide and hydrogen, with simultaneous removal of one or more products, is described. The method includes the following steps: in a first reactor, carbon monoxide from the gas phase is bound in a first solvent and converted into formate, in a third reactor, formate is decomposed and resultant hydrogen H2 is removed, and in a second reactor a solid which is a hydrogen-carbonate salt or a carbonate salt is removed. The thermal decomposition of the solid and the expulsion of the carbon dioxide are carried out in an additional fourth reactor, optionally in a second solvent. Further presented is an apparatus for converting carbon monoxide and water into carbon dioxide and hydrogen, including a fourth reactor which thermally decomposes solids formed in the course of the reaction, and gives off carbon dioxide.