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:
Jun. 09, 2015
Filed:
Feb. 10, 2012
Zhenhua Zhou, Houston, TX (US);
Heiko Weiner, Pasadena, TX (US);
Dheeraj Kumar, Pearland, TX (US);
Xiaoyan Tu, Houston, TX (US);
Victor J. Johnston, Houston, TX (US);
Radmila Jevtic, Pasadena, TX (US);
Zhenhua Zhou, Houston, TX (US);
Heiko Weiner, Pasadena, TX (US);
Dheeraj Kumar, Pearland, TX (US);
Xiaoyan Tu, Houston, TX (US);
Victor J. Johnston, Houston, TX (US);
Radmila Jevtic, Pasadena, TX (US);
Celanese International Corporation, Irving, TX (US);
Abstract
A hydrogenation catalyst and process using the catalyst for converting a mixture comprising acetic acid and ethyl acetate to ethanol at a first temperature, and the catalyst desorbs ethyl acetate, in the absence of hydrogen, at a second temperature that is greater than the first temperature. The catalyst has a suitable chemisorption of ethyl acetate at the first temperature in the absence of hydrogen. In one embodiment, the first temperature ranges from 125° C. to 350° C. and the second temperature ranges from 300° C. to 600° C. The catalyst comprises one or more active metals or oxide thereof on a support that comprises tungsten or an oxide thereof. The one or more active metals are selected from the group consisting of cobalt, copper, gold, iron, nickel, palladium, platinum, iridium, osmium, rhenium, rhodium, ruthenium, tin, zinc, lanthanum, cerium, manganese, chromium, vanadium, and molybdenum.