Durable zinc oxide-containing sorbents for coal gas desulfurizat

Details Durable zinc oxide-containing sorbents for coal gas desulfurizat Durable zinc oxide-containing sorbents for coal gas desulfurizat

1994-03-23

1996-02-27

Straub, Gary P.

Catalyst, solid sorbent, or support therefor: product or process

Solid sorbent

502405, 502407, 502411, 502428, 502517, B01J 2002, B01J 2030

Patent

active

054948800

ABSTRACT:
Durable zinc-oxide containing sorbent pellets for removing hydrogen sulfide from a gas stream at an elevated temperature are made up to contain titania as a diluent, high-surface-area silica gel, and a binder. These materials are mixed, moistened, and formed into pellets, which are then dried and calcined. The resulting pellets undergo repeated cycles of sulfidation and regeneration without loss of reactivity and without mechanical degradation. Regeneration of the pellets is carried out by contacting the bed with an oxidizing gas mixture.

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