Sulfur process

Details Sulfur process Sulfur process

1981-05-26

1982-10-26

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423573R, 423573G, B01D 5334

Patent

active

043561551

ABSTRACT:
A cyclic process for the removal of hydrogen sulfide from a variety of gas streams is disclosed. The gas stream containing the sour gases is contacted with a solution of the Fe(III) chelate of nitrilotriacetic acid and a modifier having the formula C.sub.n H.sub.2n-1 OH, wherein n is a whole number from 4 through 22. The hydrogen sulfide is converted to sulfur, and the Fe(III) chelate is converted to the Fe(II) chelate. The process includes sulfur removal and regeneration of the Fe(III) chelate.

REFERENCES:
patent: 3068065 (1972-12-01), Hartley et al.
patent: 3099536 (1963-07-01), Urban et al.
patent: 3622273 (1971-11-01), Roberts et al.
patent: 3933993 (1976-01-01), Salemme
patent: 4009251 (1977-02-01), Meuly
patent: 4091073 (1978-05-01), Winkler

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