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:
Oct. 14, 2008
Filed:
Jan. 29, 2004
Applicants:
Kwang-deog Jung, Seoul, KR;
Oh-shim Joo, Seoul, KR;
Jun-woo OH, Seoul, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for producing DME, which comprises separating a COrich stream from a crude product stream containing DME and COobtained by a DME synthesis from a feed syn gas; introducing the COrich stream to a reverse water gas shift (RWGS) reactor wherein it is reacted with hydrogen in the presence of an oxide catalyst of either ZnO or NiO to provide a CO rich stream, and recycling the CO rich stream to the step of the methanol synthesis step.