Sulfuration of Pt/Al2O3, Pt?Re/Al2O3 and Pt?Ir/Al2O3 catalysts期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Sulfuration of Pt/Al₂O₃, Pt?Re/Al₂O₃ and Pt?Ir/Al₂O₃ catalysts

Authors:	C Apesteguia and J Barbier

Institution:	(1) Groupe de Recherche sur la Catalyse, Faculté des Sciences, Université de Poitiers, 40, Avenue du Recteur Pineau, 86022 Potiers, France;(2) Instituto de Investigaciones en Catalisis y Petroquimica (INCAPE), Santiago del Estera, 3000 Santa Fe, Argentina

Abstract:	Three reforming catalysts Pt/Al₂O₃, Pt–Ir/Al₂O₃ and Pt–Re/Al₂O₃ have been sulfurated by H₂S and tested by their activities in benzene hydrogenation. By treatment at 500°C under hydrogen flow only a part of the initial activity of the non-sulfurated catalyst is retained. So only a part of the adsorbed sulfur is easily removed in these conditions. The remaining sulfur for each of the catalysts (Pt/Al₂O₃, Pt–Ir/Al₂O₃ and Pt–Re/Al₂O₃) gives the same atomic ratio of 0.5 sulfur atom per accessible metallic atom. Pt/Al₂O₃, Pt–Ir/Al₂O₃ Pt–Pe/Al₂O₃ . 500°C H₂ . . ., . (Pt/Al₂O₃, Pt–Ir/Al₂O₃ Pt–Pe/Al₂O₃) 0,5.

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