High-temperature sorbent method for removal of sulfur containing

Details High-temperature sorbent method for removal of sulfur containing High-temperature sorbent method for removal of sulfur containing

1982-07-07

1984-06-19

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423244, 252190, 55 73, 55 74, C01B 1716, C01B 3120, C01B 1700

Patent

active

044552866

ABSTRACT:
A copper oxide-zinc oxide mixture is used as a sorbent for removing hydrogen sulfide and other sulfur containing gases at high temperatures from a gaseous fuel mixture. This high-temperature sorbent is especially useful for preparing fuel gases for high temperature fuel cells. The copper oxide is initially reduced in a preconditioning step to elemental copper and is present in a highly dispersed state throughout the zinc oxide which serves as a support as well as adding to the sulfur sorption capacity. The spent sorbent is regenerated by high-temperature treatment with an air fuel, air steam mixture followed by hydrogen reduction to remove and recover the sulfur.

REFERENCES:
patent: 2580068 (1951-12-01), Beckley et al.
patent: 3778501 (1973-12-01), Lang et al.
patent: 3974256 (1976-08-01), Wheelock et al.
patent: 4002720 (1977-01-01), Wheelock et al.
U.S. DOE Solicitation No. DE-RP21-82MC19077, p. 6, 1982.

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