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:
May. 31, 2011
Filed:
Jun. 25, 2008
Applicants:
Douglas G. Stewart, Wheeling, IL (US);
Mark G. Riley, Hinsdale, IL (US);
Peter M. Bernard, Chicago, IL (US);
Inventors:
Douglas G. Stewart, Wheeling, IL (US);
Mark G. Riley, Hinsdale, IL (US);
Peter M. Bernard, Chicago, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 8/08 (2006.01); F27B 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A moving bed of catalyst loses activity as it moves through the reactor. Creating multiple passes for the process fluid moving across a catalyst bed, increases the utilization of the catalyst and creates a pseudo-counter current flow of catalyst and process fluid. The flow improves the temperature profile of the bed and allows higher temperature fluid contacting the less active catalyst.