Hydrogen and sulfur recovery from hydrogen sulfide wastes

Details Hydrogen and sulfur recovery from hydrogen sulfide wastes Hydrogen and sulfur recovery from hydrogen sulfide wastes

1991-08-01

1993-05-18

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

4235731, 423644, 423DIG10, 20415743, 20415744, 20415749, 20415752, C01B 1716

Patent

active

052119238

ABSTRACT:
A process for generating hydrogen and elemental sulfur from hydrogen sulfide waste in which the hydrogen sulfide is associated under plasma conditions and a portion of the hydrogen output is used in a catalytic reduction unit to convert sulfur-containing impurities to hydrogen sulfide for recycle, the process also including the addition of an ionizing gas such as argon to initiate the plasma reaction at lower energy, a preheater for the input to the reactor and an internal adjustable choke in the reactor for enhanced coupling with the microwave energy input.

REFERENCES:
patent: 4076607 (1978-02-01), Zavitsanos et al.
patent: 4302434 (1981-11-01), Hellmer et al.
patent: 4332781 (1982-06-01), Lieder et al.
patent: 4439412 (1984-03-01), Behie et al.
patent: 4695446 (1987-09-01), Bogdanovic
patent: 4999178 (1991-03-01), Bowman
Recovery of Hydrogen and Sulfur From Hydrogen Sulfide Wastes Presented Aug. 1, 1990 at the Industry Working Group Meeting Bldg 362 Argonne National Laboratory, Argonne, Illinois.
Hydrogen Sulfide Waste Treatment by Microwave Plasma Dissociation by John B. L. Harkness, Anthony J. Gorski and Edward J. Daniels presented at 25th Intersociety Energy Coversion Engineering Conf. Aug. 12-17 1990.
Dissociation of Hydrogen Sulfide in a Plasma by A. V. Balebanov et al., Doklady Physical Chemistry pp. 709-712.
Effect of Spatial Nonequilibrium in the Dissociation of Hydrogen Sulfide in a Nonuniform Plasma pp. 592-594 Jul. 1985.

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