Regeneration process for poisoned claus alumina catalyst

Details Regeneration process for poisoned claus alumina catalyst Regeneration process for poisoned claus alumina catalyst

1977-09-14

1980-01-15

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252416, 252420, 423576, B01J 2120, C01B 1704

Patent

active

041838238

ABSTRACT:
Poisoned alunina catalyst is removed from the reactor and washed with hot water to remove soluble sulfates. The carbon on the washed catalyst is then burned off and the product may again be washed to remove further sulfates formed during the oxidative burn-off. The activity of the catalyst thus regenerated is comparable to that of fresh alumina catalyst employed for sulfur recovery by the modified Claus process.

REFERENCES:
patent: 3414524 (1968-12-01), Abson et al.
"Catalysts For Claus Process", by M. J. Pearson, pp. 12-23, Kaiser Aluminum & Chem. Corp., Oct. 1972.

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