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:
Aug. 30, 2022
Filed:
Aug. 24, 2018
Applicants:
Bp P.l.c., London, GB;
Bp (China) Holdings Ltd, Shanghai, CN;
Inventors:
Benjamin James Dennis-Smither, Hull, GB;
John Glenn Sunley, Hull, GB;
Assignee:
BP P.L.C., London, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 41/09 (2006.01); B01J 29/08 (2006.01); B01J 29/18 (2006.01); B01J 29/40 (2006.01); B01J 29/65 (2006.01); B01J 29/70 (2006.01); B01J 31/02 (2006.01); B01J 31/26 (2006.01); C07C 43/04 (2006.01);
U.S. Cl.
CPC ...
C07C 41/09 (2013.01); B01J 29/084 (2013.01); B01J 29/18 (2013.01); B01J 29/40 (2013.01); B01J 29/65 (2013.01); B01J 29/70 (2013.01); B01J 29/7007 (2013.01); B01J 29/7038 (2013.01); B01J 29/7042 (2013.01); B01J 31/0207 (2013.01); B01J 31/26 (2013.01); C07C 43/043 (2013.01); B01J 2231/4288 (2013.01); B01J 2531/007 (2013.01);
Abstract
A process for dehydrating methanol to dimethyl ether product in the presence of a solid Brønsted acid catalyst which is an aluminosilicate zeolite or a heteropolyacid and a promoter which is (i) a ketone of formula RCOR(Formula I) in which Rand Rare identical or different and are each a C-Calkyl group and furthermore Rand Rtogether with the carbonyl carbon atom to which they are bonded may form a cyclic ketone; or (ii) a ketal derivative of a ketone of Formula I; and the molar ratio of promoter to methanol is maintained at 0.5 or less.