Removal of water vapor diluent after regeneration of metal oxide

Details Removal of water vapor diluent after regeneration of metal oxide Removal of water vapor diluent after regeneration of metal oxide

1987-12-17

1989-06-27

Doll, John

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

422171, 422172, 423230, C01B 1704, B01D 5304

Patent

active

048428434

ABSTRACT:
In a process in which ZnO is used to absorb H.sub.2 S and/or SO.sub.2 from Claus Plant tail gas, producing ZnS, and in which ZnS is regenerated using O.sub.2 producing regeneration effluent, the volume of regeneration effluent containing sulfur species which must be further processed is reduced or diminished in quantity by diluting the oxygen containing gas with water prior to regeneration of ZnS to ZNO and thereafter removing at least a portion of the added water.

REFERENCES:
patent: 4044114 (1977-08-01), Dezael et al.
patent: 4088736 (1978-05-01), Courty et al.
patent: 4426369 (1984-01-01), Palm
patent: 4442078 (1984-04-01), Jalan et al.
patent: 4526590 (1985-07-01), Palm et al.
patent: 4533529 (1985-08-01), Lee
Beavon et al., "High Recovery, Low Emissions Promised for Claus-Plant Tail Gas", Oil and Gas Journal, 3-12-1979, pp. 76-80.
Goar et al., "Claus Plant Capacity Boasted by Oxygen-Enrichment Process", Oil and Gas Journal, 9-30-1985, pp. 39-41.

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