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:
Mar. 25, 2014
Filed:
Aug. 03, 2011
Victor J. Johnston, Houston, TX (US);
Tianshu Pan, Houston, TX (US);
Lincoln Sarager, Houston, TX (US);
R. Jay Warner, Houston, TX (US);
Heiko Weiner, Pasadena, TX (US);
Josefina Chapman, Houston, TX (US);
Robert Cunningham, Plainfield, IN (US);
Gerald Grusendorf, Rosharon, TX (US);
Trinity Horton, Houston, TX (US);
Radmila Jevtic, Pasadena, TX (US);
Victor J. Johnston, Houston, TX (US);
Tianshu Pan, Houston, TX (US);
Lincoln Sarager, Houston, TX (US);
R. Jay Warner, Houston, TX (US);
Heiko Weiner, Pasadena, TX (US);
Josefina Chapman, Houston, TX (US);
Robert Cunningham, Plainfield, IN (US);
Gerald Grusendorf, Rosharon, TX (US);
Trinity Horton, Houston, TX (US);
Radmila Jevtic, Pasadena, TX (US);
Celanese International Corporation, Dallas, TX (US);
Abstract
In one embodiment, the invention is to a process for producing ethanol. The process comprises the step of hydrogenating an acetic acid feed stream in a first reactor to form a crude ethanol product. The crude ethanol product may comprise, among other components, ethanol, acetaldehyde, and residual acetic acid. The process further comprises the step of recovering acetaldehyde from the crude ethanol product. The process further comprises the steps of feeding a first portion of the recovered acetaldehyde to the first reactor and reacting the first portion of the recovered acetaldehyde in the first reactor to form additional ethanol. In addition, the inventive process may comprise the steps of feeding a second portion of the recovered acetaldehyde to a second reactor and reacting the second portion of the recovered acetaldehyde in the second reactor to form an additional product.