Process for the recovery of sulfur from so2 containing gases

Details Process for the recovery of sulfur from so2 containing gases Process for the recovery of sulfur from so2 containing gases

C - Chemistry, Metallurgy

01

B

C01B 17/04 (2006.01) B01D 53/86 (2006.01)

Patent

CA 2259946

The invention relates to a process for recovering sulfur from an SO2 containing gas stream through catalytic conversion thereof to elemental sulfur, comprising converting SO2 and H2S in the presence of liquid sulfur and a catalyst system based on a heterogeneous catalyst which catalyzes the Claus reaction, while as promoter for the Claus reaction a basic nitrogen compound is present in the liquid sulfur.

L'invention concerne un procédé de récupération de soufre à partir d'un courant de gaz contenant SO¿2?, au moyen d'une conversion catalytique de SO¿2? en soufre élémentaire, le procédé consistant à convertir SO¿2? et H¿2?S, en présence de soufre liquide et d'un système de catalyseur à base d'un catalyseur hétérogène, lequel catalyse la réaction de Claus, tandis qu'en tant que promoteur de la réaction de Claus, un composé d'azote basique est présent dans le soufre liquide.

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