Sulfide catalysts for reducing so2 to elemental sulfur

Details Sulfide catalysts for reducing so2 to elemental sulfur Sulfide catalysts for reducing so2 to elemental sulfur

B - Operations, Transporting

01

J

23/336, 252/56,

B01J 27/051 (2006.01) B01D 53/86 (2006.01) B01J 27/02 (2006.01) B01J 27/043 (2006.01) B01J 27/047 (2006.01) B01J 27/049 (2006.01) B01J 27/055 (2006.01) B01J 38/72 (2006.01) C01B 17/04 (2006.01)

Patent

CA 2319181

A highly efficient sulfide catalyst for reducing sulfur dioxide to elemental sulfur, which maximizes the selectively of elemental sulfur over byproducts and has a high conversion efficiency. Various feed stream contaminants, such as water vapor are well tolerated. Additionally, hydrogen, carbon monoxide, or hydrogen sulfides can be employed as the reducing gases while maintaining high conversion efficiency. This allows a much wider range of uses and higher level of feed stream contaminants than prior art catalysts.

L'invention concerne un catalyseur sulfuré très efficace qui permet de réduire le dioxyde de soufre en soufre, avec sélectivité optimale du soufre par rapport aux sous-produits et avec une grande efficacité de conversion. La tolérance aux différents contaminants de flux d'alimentation (par exemple, vapeur d'eau) est bonne. Par ailleurs, on peut utiliser l'hydrogène, le monoxyde carbone ou les sulfures d'hydrogène comme gaz réducteurs, tout en maintenant une grand efficacité de conversion. Cela donne un éventail d'utilisations bien plus large et une tolérance supérieure aux contaminants de flux d'alimentation, par rapport aux catalyseurs existants.

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