Electrolytic reduction of sulfidic spent alkali metal wastes

Details Electrolytic reduction of sulfidic spent alkali metal wastes Electrolytic reduction of sulfidic spent alkali metal wastes

1979-12-21

1981-01-20

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204131, 204149, C25B 120

Patent

active

042460794

ABSTRACT:
A process for reducing the sulfur concentration in a fluid, such as a hydrocarbon gas stream is disclosed. The process comprises contacting the fluid with an aqueous alkali metal hydroxide solution and subsequently contacting the resulting liquid effluent with carbon dioxide to form an aqueous alkali metal carbonate salt solution and a volatile sulfur compound. The aqueous alkali metal carbonate salt solution is passed into an electrolytic cell wherein the alkali metal salt is converted to alkali metal hydroxide.

REFERENCES:
patent: 2654706 (1953-10-01), Gaylor
patent: 2794768 (1957-06-01), Brooks
patent: 2794769 (1957-06-01), Jezl
patent: 2809930 (1957-10-01), Miller
patent: 4041129 (1977-08-01), Fester et al.
patent: 4189362 (1980-02-01), Dotson
patent: 4191620 (1980-03-01), Young et al.
Manual on Disposal of Refining Wastes, Amer. Petroleum Inst., Chapter 15, pp. 15-20, 21.

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