Natural gas treatment process

Details Natural gas treatment process Natural gas treatment process

B - Operations, Transporting

01

D

B01D 53/52 (2006.01) C10L 3/10 (2006.01)

Patent

CA 2232962

Hydrogen sulfide is removed from gas streams by reaction with sulfur dioxide in an autogenously-formed aqueous acid medium according to the equation: SO2 + 2H2S 2H2O + 3S the sulfur being removed from the aqueous phase. Carbonyl sulfide and/or carbon disulfide is removed from gas streams by hydrolysis to hydrogen sulfide in the presence of a weak organic base catalyst, such as quinoline, with the hydrogen sulfide reacting with sulfur dioxide to form sulfur.

On extrait l'hydrogène sulfuré de flux gazeux par réaction avec du dioxyde de soufre dans un milieu acide aqueux se formant spontanément selon l'équation SO¿2? + 2 H¿2?S ? 2 H¿2?O + 3 S, ce qui extrait le soufre de la phase aqueuse. On extrait le sulfure de carbonyle et/ou le disulfure de carbone de flux gazeux par hydrolyse, ce qui donne de l'hydrogène sulfuré, en présence d'un catalyseur contenant une base organique faible telle que la quinoléine, l'hydrogène sulfuré réagissant avec le dioxyde de soufre pour former du soufre.

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