Conversion of hydrogen sulfide to sulfur and hydrogen

Details Conversion of hydrogen sulfide to sulfur and hydrogen Conversion of hydrogen sulfide to sulfur and hydrogen

1991-11-19

1993-01-19

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

4235731, 4236481, 423224, C01B 1705, C01B 322

Patent

active

051805723

ABSTRACT:
The invention relates to a process for converting hydrogen sulfide to sulfur and hydrogen. The hydrogen sulfide gas is contacted with a quinone in an aqueous solvent containing a sulfur complexing agent to yield sulfur and the corresponding hydroquinone. The hydroquinone is converted back to quinone and hydrogen. The quinone is recycled and the hydrogen gas and sulfur is collected. The invention also discloses a range of ratios of complexing agent to quinone which produces an unexpected yield for the disclosed reaction.

REFERENCES:
patent: 3035889 (1962-05-01), Nicklin et al.
patent: 3087793 (1963-04-01), Hay
patent: 3725537 (1973-04-01), Schulze et al.
patent: 3914399 (1975-10-01), Beazley
patent: 3923966 (1975-12-01), Vaughan
patent: 3937795 (1976-02-01), Hasebe
patent: 4581128 (1986-04-01), Plummer et al.
patent: 4592905 (1986-06-01), Plummer et al.
Plummer, M. A. "Sulfur and Hydrogen from H.sub.2 S", Hydrocarbon Processing, Int. Ed., vol. 66, #4 (Apr. 1987), pp. 38-40.

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