Kenneth George Tasker

age ~83

from Yardley, PA

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Catalyst Rejuvenation Vessel Assembly
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US Patent:

47692197, Sep 6, 1988
Filed:

Apr 9, 1987
Appl. No.:

7/036767
Inventors:

Kenneth G. Tasker - Yardley PA
John D. Milligan - Little Silver NJ
Assignee:

HRI, Inc. - Gibbsboro NJ
International Classification:

F27B 1508
B01J 3800
US Classification:

422144
Abstract:

A catalyst rejuvenation vessel assembly for treating particulate used oil-coated catalysts to provide a rejuvenated catalyst material is disclosed. A pressurizable vertically-oriented vessel assembly has inlet and outlet openings for the catalyst and washing fluids, and has a removable lower sub-assembly head portion which contains a conical shaped grid unit located therein. The vessel assembly is arranged to permit solvent washing, vacuum drying and acid treatment and gas drying of the used catalyst in a bed supported above the conical grid, by upward flow and recycle of the washing liquids and fluidization of the catalyst. Following rejuvenation of the catalyst, it is withdrawn form the vessel downwardly through the conical shaped grid and out through a central withdrawal conduit containing a slide valve unit for further processing or use as desired.

Method For Rejuvenating Used Catalysts
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US Patent:

48638846, Sep 5, 1989
Filed:

May 25, 1988
Appl. No.:

7/199872
Inventors:

Kenneth G. Tasker - Yardley PA
John D. Milligan - Little Silver NJ
Assignee:

HRI, Inc. - Lawrenceville NJ
International Classification:

B01J 3860
B01J 3856
US Classification:

502 27
Abstract:

Method for treating particulate used oil-coated catalysts to provide a rejuvenated catalyst material in a rejuvention vessel assembly. The pressurizable vertically-oriented vessel assembly has inlet and outlet openings for the catalyst and washing fluids, and has a removable lower sub-assembly head portion which contains a conical shaped grid unit located therein. The vessel assembly is arranged to permit solvent washing, vacuum drying and acid treatment and gas drying of the used catalyst in a bed supported above the conical grid, by upward flow and recycle of the washing liquids and fluidization of the catalyst. Following rejuvenation of the catalyst, it is withdrawn from the vessel downwardly through the conical shaped grid and out through a central withdrawal conduit containing a slide valve unit for further processing or use as desired.