Process for purifying geothermal steam

Details Process for purifying geothermal steam Process for purifying geothermal steam

1979-01-24

1980-04-01

Thomas, Earl C.

Chemistry of inorganic compounds

Sulfur or compound thereof

Elemental sulfur

423224, 423230, C01B 1704, B01D 5334

Patent

active

041961838

ABSTRACT:
Steam containing hydrogen sulfide is purified and sulfur recovered by passing the steam through a reactor packed with activated carbon in the presence of a stoichiometric amount of oxygen which oxidizes the hydrogen sulfide to elemental sulfur which is adsorbed on the bed. The carbon can be recycled after the sulfur has been recovered by vacuum distillation, inert gas entrainment or solvent extraction. The process is suitable for the purification of steam from geothermal sources which may also contain other noncondensable gases.

REFERENCES:
patent: 3598521 (1971-08-01), Alley
patent: 3634028 (1972-01-01), Hohne
patent: 4088743 (1978-05-01), Hass et al.
Kohl et al., "Gas Purification", McGraw-Hill Book Co., Inc., 1975, pp. 260-263.
Hassler, "Activated Carbon", Chemical Publishing Company, Inc., 1963, pp. 270-273.
Ferguson, "Hydrogen Sulfide Removal from Gases, Air & Liquids" Pollution Technology Review 22, Noyes Data Corp. 1975, pp. 246-249.

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