Abstract: Optimized utilization of combinations of fluid catalyst magnetic separator, classifier, and/or attriter can be used to achieve lower catalyst cost, and better catalyst activity and selectivity through control of metal-on-catalyst, particle size and particle size distribution. This process is especially useful when processing high metal-containing feedstocks. This provides a catalyst recovery unit (RCU.TM.) ancillary to an FCC or similar unit.
Type:
Grant
Filed:
July 27, 1995
Date of Patent:
May 5, 1998
Assignee:
Ashland Inc.
Inventors:
William P. Hettinger, Jr., Howard F. Moore, Terry L. Goolsby, A. V. Peppard