Method for improving the long-term stability of H.sub.2 S absorp

Details Method for improving the long-term stability of H.sub.2 S absorp Method for improving the long-term stability of H.sub.2 S absorp

1988-09-14

1992-04-07

Langel, Wayne A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423226, 423232, 4235764, 4235765, 4235766, 4235767, C01B 1705, C01B 1716

Patent

active

051026350

ABSTRACT:
The long term stability of process solutions used in H.sub.2 S-to-sulfur absorption/oxidation process, wherein the incoming hydrogen sulfide-containing gas stream is contaminated with hydrocarbons and/or organic oxygenated compounds and the process is generating an excessive amount of thiosulfate in the process solution, is improved by a method comprising contacting the gas stream and/or the process solution with charcoal to remove both the contamination and at least a portion of the thiosulfate therefrom.

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patent: 4624839 (1986-11-01), Wolcott et al.
patent: 4741888 (1988-05-01), Fung et al.
Gas Purification, Third Edition, Kohl et al., Houston, Gulf Publishing Company, 1980, p. 650.

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