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
1998-10-13
2000-04-04
Griffin, Steven P.
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,...
502 33, B01J 2034
Patent
active
060461241
ABSTRACT:
A process for regenerating solid treating particles contained in at least two vessels of a swing bed regeneration operation where the effluent of the regeneration operation is maintained regeneration fluid-free and at a substantially constant flowrate has been developed. The swing bed regeneration operation involves an on-line vessel treating process fluid and an off-line vessel for regeneration. At least a portion of the process fluid effluent from the vessel on-line is conducted to a displacement surge drum. The flowrate of the process fluid effluent from the displacement surge drum is controlled so that downstream units receive a substantially constant flowrate. A portion of the process fluid effluent from the displacement surge drum is periodically used to displace regeneration fluid from the vessel off-line, and during the displacement, the flowrate of effluent from the displacement surge drum is increased to provide additional flow to the vessel off-line without having to reduce the flow to downstream units.
REFERENCES:
patent: 5300715 (1994-04-01), Vora
patent: 5851944 (1998-12-01), Luebke et al.
Leet William A.
Luebke Charles P.
Marker Terry L.
Vangelisti Ronald J.
Zimmermann Joseph E.
Griffin Steven P.
Ildebrando Christina
Maas Maryann
Molinaro Frank S.
Tolomei John G.
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