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:
Aug. 27, 1996
Filed:
Dec. 08, 1994
Applicant:
Inventor:
Randy J Zinke, Carol Stream, IL (US);
Assignee:
UOP, Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208150 ; 208151 ; 502 55 ; 585834 ;
Abstract
An FCC stripper uses a grid arrangement that provides increased contacting of stripping fluid and catalyst through multiple levels of stripping grids while using a configuration that permits access through the stripper vessel for maintenance and inspection. The invention is particularly suited for large diameter stripping vessels where the typical frusto-conical configuration of baffles greatly increases the length of the stripper. The stripper grids also have orifice openings to redistribute stripping fluid at each level of stripping grid and increase contact between catalyst and stripping fluid.