Method for removing hydrogen sulfide

Details Method for removing hydrogen sulfide Method for removing hydrogen sulfide

1975-06-25

1977-07-26

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423555, 423637, 204 98, 204104, 204128, B01D 5334, C25B 100

Patent

active

040383660

ABSTRACT:
A method for removing hydrogen sulfide from a hydrogen sulfide entrained gas comprises the steps of bringing the hydrogen sulfide entrained gas into contact with an alkaline absorption solution with a pH of 10 to 14 to cause hydrogen sulfide in the gas to be absorbed into an alkaline absorption solution, subjecting the resultant absorption solution to a DC electrolytic treatment whereby an alkaline solution is separated into a cathode chamber and sulfur and sulfuric acid are separated into an anode chamber, and circulating as the alkaline absorption solution the alkaline solution produced within the cathode chamber. This constitutes a closed system, thereby completely eliminating a cause for public nuisance.

REFERENCES:
patent: 3409520 (1968-11-01), Bolmer
patent: 3523755 (1970-08-01), McRae
patent: 3801698 (1974-04-01), Lowrance et al.

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