Stephen Hsia resumes & CV records
Resumes
Stephen Hsia
Location:
United States
Stephen J Hsia, Age 7586 S Charles St, Perth Amboy, NJ 08861
Stephen Hsia Phones & Addresses
86 S Charles St, Perth Amboy, NJ 08861 (732) 750-0855
Hopelawn, NJ
84 Orange St, Woodbridge, NJ 07095 (732) 750-0855 (732) 750-4874
Wayne, PA
Edison, NJ
Long Beach, CA
Mentions for Stephen J Hsia
Publications & IP owners
Us Patents
Slurry Hydrocarbon Synthesis Process With Multistage Catalyst Rejuvenation
US Patent:
5821270, Oct 13, 1998
Filed:
May 2, 1997
Appl. No.:
8/850356
Inventors:
Min Chang - Warren NJ
Constantine A. Coulaloglou - Mendham NJ
Stephen Ju-Ming Hsia - Baton Rouge LA
Charles John Mart - Coppell TX
Constantine A. Coulaloglou - Mendham NJ
Stephen Ju-Ming Hsia - Baton Rouge LA
Charles John Mart - Coppell TX
Assignee:
Exxon Research and Engineering Company - Florham Park NJ
International Classification:
C07C 2700
US Classification:
518700
Abstract:
A reversibly deactivated hydrocarbon synthesis catalyst in a hydrocarbon synthesis slurry is rejuvenated by successively passing the slurry through at least two rejuvenation stages external of the slurry reactor, each of which comprises a rejuvenation zone followed by an offgas removal zone. This is accomplished by using a lift pipe outside the reactor into which slurry from the reactor is passed and contacts a catalyst rejuvenating gas to partially rejuvenate the catalyst particles and form a rejuvenation offgas. The gas and slurry mixture are passed into a vessel in which the gas is removed from the slurry. Rejuvenation gas is bubbled into the slurry in the vessel to further rejuvenate the catalyst. A gas removing downcomer removes gas from the slurry in the vessel before it is passed back into the reactor. The rejuvenation gas also acts as a lift gas in the lift pipe.
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