Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
March 15, 2011
Patent Application Number
11957952
Date Filed
December 17, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
Disclosed is an FCC apparatus and process in which spent catalyst is recycled to the base of the riser to contact fresh feed through a passage disposed within the riser.
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