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.

Date of Patent:
Nov. 17, 2009

Filed:

Apr. 07, 2004
Applicants:

Jean Billy, Le Plessis Trevise, FR;

Natacha Haik-beraud, Nogent sur Marne, FR;

Jean Gallarda, Joinville le Pont, FR;

Franck Wegrzyn, Saint Maur des Fosses, FR;

Inventors:

Jean Billy, Le Plessis Trevise, FR;

Natacha Haik-Beraud, Nogent sur Marne, FR;

Jean Gallarda, Joinville le Pont, FR;

Franck Wegrzyn, Saint Maur des Fosses, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a process for producing a mixture containing at least 10% carbon monoxide () by cryogenic separation of a feed gas containing at least carbon monoxide, hydrogen and methane, the feed gas () is separated to produce a first gas enriched in hydrogen (), the feed gas is scrubbed in a methane wash column (), a carbon monoxide enriched stream () from the bottom of the methane wash column is separated () to produce a stream further enriched in carbon monoxide (), the stream further enriched in carbon monoxide is separated to form a carbon monoxide rich stream () and a liquid methane stream (), at least part () of the carbon monoxide rich stream is mixed with the first gas enriched in hydrogen to form the mixture containing at least 10% carbon monoxide as a product stream.


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