Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Patent
1988-05-25
1989-09-05
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Treating with a liquid or treating in a liquid phase,...
208 52CT, 502 31, 502516, B01J 3860, B01J 3856
Patent
active
048638846
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 Following rejuvenation of the catalyst, it is withdrawn from the vessel downwardly through the conical shaped grid and out through a central withdrawal conduit containing a slide valve unit for further processing or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.
REFERENCES:
patent: 2904518 (1959-09-01), Shea
patent: 3541002 (1970-11-01), Rapp
patent: 3627705 (1971-12-01), Kingsbury
patent: 3772211 (1973-11-01), Mounce
patent: 3839191 (1974-10-01), Johnson
patent: 3843330 (1974-10-01), Conner et al.
patent: 4454240 (1984-06-01), Ganguli
Milligan John D.
Tasker Kenneth G.
HRI Inc.
Konopka Paul E.
Wilson Fred A.
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