Process for eliminating hydrogen sulfide from gas mixtures

Details Process for eliminating hydrogen sulfide from gas mixtures Process for eliminating hydrogen sulfide from gas mixtures

B - Operations, Transporting

01

D

23/344

B01D 53/02 (2006.01)

Patent

CA 1117276

ABSTRACT OF THE DISCLOSURE In a process for eliminating impurities and undesirable components from gas mixtures by passing the mixture through an activated carbon-containing adsorber. Sulfur compounds including hydrogen sulfide are eliminated by increasing the oxygen contents of the gas mixture which contains at least oxygen and/or sulfur dioxide in addition to the hydrogen sulfide to an extent that an oxygen hydrogen sulfide molar ratio is obtained in the gas mix- ture which is between about 1 : 0.45 and 1 : 0.65. The process may also be carried-out with two groups of absorbers where in the first adsorber the elemental sulfur is eliminated in liquid form and where the remaining minor portion of sulfur in vaporous or mist-like form is then removed in the second group of adsorber or adsorbers by adsorption on the ac- tivated coal. The purified gas is then recovered from the adsorber or with two groups of adsorbers from the second group of adsorber or adsorbers and the activated carbon is subjected to periodic regeneration cycles. - 1 -

298604

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