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:
Dec. 08, 1987
Filed:
Nov. 25, 1986
Applicant:
Inventors:
Robert R Cartmell, Crown Point, IN (US);
Carl J Horecky, Elmhurst, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
422140 ; 422142 ; 422144 ; 422145 ; 422214 ;
Abstract
The present invention relates to a plug valve which effects the immediate and intimate mixing of fluidizable cracking catalyst with a fluid hydrocarbon in a riser reactor. Further, a stationary guide tube is located around a portion of the plug valve stem so as to define an upper and a lower annular compartment which are separated by a bushing. Bushings also define the upper end of the upper compartment and the lower end of the lower compartment. Each of the annular compartments has a bleed medium conduit connected thereto.