In situ hydrocarbon conversion catalyst regeneration without sul

Details In situ hydrocarbon conversion catalyst regeneration without sul In situ hydrocarbon conversion catalyst regeneration without sul

1975-12-22

1977-07-05

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208140, 252411S, 252419, B01J 2120, B01J 2396, C10G 3508

Patent

active

040338983

ABSTRACT:
An improved process for removing sulfur from a bed of deactivated and sulfur-contaminated platinum-alumina catalyst in a reactor in a hydrocarbon conversion system having a vessel associated with the reactor, including the steps of: treating the catalyst with an oxygen-containing gas to burn off deactivating substances and oxidize sulfur in the catalyst bed; passing a hydrogen-containing gas through the catalyst bed to remove sulfur from the bed and form gaseous sulfur compounds; and removing the resulting sulfur-containing gas from the reactor and the conversion system by a path that excludes the sulfur-containing gas from contact with the associated vessel.

REFERENCES:
patent: 3349022 (1967-10-01), Mitchell et al.
patent: 3692693 (1972-09-01), Gunning et al.
patent: 3785996 (1974-01-01), Hayes

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