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:
Nov. 17, 2015
Filed:
Jan. 11, 2011
Applicants:
Per Juul Dahl, Vedbæk, DK;
Henrik Otto Stahl, Hørsholm, DK;
Inventors:
Per Juul Dahl, Vedbæk, DK;
Henrik Otto Stahl, Hørsholm, DK;
Assignee:
Haldor Topsoe A/S, Lyngby, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/09 (2006.01); C07C 43/04 (2006.01);
U.S. Cl.
CPC ...
C07C 41/09 (2013.01); C07C 41/09 (2013.01); C07C 43/04 (2013.01);
Abstract
Process for the preparation of dimethyl ether comprising the steps of: a) providing a methanol containing feed stock; b) introducing the feed stock into a reaction zone within a gas cooled dimethyl ether reactor and passing the feed stock through the reaction zone; c) introducing a cooling gas stream into a cooling space within the gas cooled dimethyl ether reactor; d) reacting the feed stock in the reaction zone in presence of a catalyst being active in the dehydration of methanol to dimethyl ether to obtain a reactor effluent comprising dimethyl ether.