Removal of sulfur from process streams

Details Removal of sulfur from process streams Removal of sulfur from process streams

1982-07-02

1984-01-10

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423244, 55 73, 502 34, B01D 5334

Patent

active

044253125

ABSTRACT:
A process wherein water is added to a non-reactive gas stream, preferably a hydrogen or hydrogen-containing gas stream, sufficient to raise the water level thereof to from about 0.2 percent to about 50 percent, based on the total volume of the process gas stream, and the said moist gas stream is contacted, at elevated temperature, with a particulate mass of a sulfur-bearing metal alumina spinel characterized by the formula MAl.sub.2 O.sub.4, wherein M is chromium, iron, cobalt, nickel, copper, cadmium, mercury, or zinc to desorb sulfur thereon. In the sulfur sorption cycle, due to the simultaneous adsorption of water and sulfur, the useful life of the metal alumina spinel for sulfur adsorption can be extended, and the sorbent made more easily regenerable after contact with a sulfur-bearing gas stream, notably sulfur-bearing wet hydrogen or wet hydrogen-rich gas streams.

REFERENCES:
patent: 2551905 (1951-05-01), Robinson
patent: 3974256 (1976-08-01), Wheelock et al.
patent: 4263020 (1981-04-01), Eberly

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