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. 22, 1990
Filed:
Jan. 03, 1989
James H Haddad, Princeton Junction, NJ (US);
Hartley Owen, Belle Mead, NJ (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
A method and apparatus for improving the stripping of hydrocarbons from catalyst particles in a fluidized catalytic cracking (FCC) unit. A stripper vessel is located directly adjacent the exhaust barrel of a separator and immediately begins stripping hydrocarbon from catalyst particles. The stripper is sealed at the catalyst exit by a catalyst seal pot, with the drain sized so as to permit only a portion of catalyst flow to pass therethrough, with the remainder catalyst overflowing the seal pot. The location of the stripper adjacent the separator exhaust and the provision of a catalyst seal pot, in other embodiments, can be combined either separately or together with a short contact time (SCT) stripper and/or a catalyst particle deflector in order to reduce the 'residence' time of hydrocarbons with catalyst particles.