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. 26, 2007
Filed:
Feb. 27, 2004
Peter Ingraham Chipman, Houston, TX (US);
Ajay Madhav Madgavkar, Katy, TX (US);
Gregg Barton Shipp, Katy, TX (US);
Peter Ingraham Chipman, Houston, TX (US);
Ajay Madhav Madgavkar, Katy, TX (US);
Gregg Barton Shipp, Katy, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
Described is a method of improving the process and operation of an existing system for manufacturing ethylene oxide. The ethylene oxide manufacturing system includes an epoxidation reactor system containing a volume of high activity epoxidation catalyst. The method includes replacing a portion of the volume of high activity epoxidation catalyst with a volume of high selectivity catalyst, and modifying the operation of the process system so as to provide for a feed to the epoxidation reactor system having a reduced carbon dioxide concentration.