Modification of Multimetallic Naphtha-Reforming Catalysts by Indium Addition

VIVIANA M. BENITEZ; CARLOS R. VERA; MARÝ´A C. RANGEL; JUAN C. YORI; JAVIER M. GRAU; CARLOS L. PIECK

Industrial Engineering Research

ACS

Año: 2009 vol. 48 p. 671 - 676

Pt-Re-Ge/Al2O3 and Pt-Re-Sn/Al2O3 trimetallic naphtha-reforming catalysts were modified by the addition of indium. This additive negatively modified both the acid and metal functions of the catalysts. It produced a decrease in the activity in acid-catalyzed reactions such as the isomerization of n-pentane. Metal catalytic properties were inhibited, and the capacity for CO chemisorption also decreased. properties were inhibited, and the capacity for CO chemisorption also decreased. properties were inhibited, and the capacity for CO chemisorption also decreased. of indium. This additive negatively modified both the acid and metal functions of the catalysts. It produced a decrease in the activity in acid-catalyzed reactions such as the isomerization of n-pentane. Metal catalytic properties were inhibited, and the capacity for CO chemisorption also decreased. properties were inhibited, and the capacity for CO chemisorption also decreased. properties were inhibited, and the capacity for CO chemisorption also decreased. of indium. This additive negatively modified both the acid and metal functions of the catalysts. It produced a decrease in the activity in acid-catalyzed reactions such as the isomerization of n-pentane. Metal catalytic properties were inhibited, and the capacity for CO chemisorption also decreased. properties were inhibited, and the capacity for CO chemisorption also decreased. properties were inhibited, and the capacity for CO chemisorption also decreased. -Re-Ge/Al2O3 and Pt-Re-Sn/Al2O3 trimetallic naphtha-reforming catalysts were modified by the addition of indium. This additive negatively modified both the acid and metal functions of the catalysts. It produced a decrease in the activity in acid-catalyzed reactions such as the isomerization of n-pentane. Metal catalytic properties were inhibited, and the capacity for CO chemisorption also decreased. properties were inhibited, and the capacity for CO chemisorption also decreased. properties were inhibited, and the capacity for CO chemisorption also decreased. n-pentane. Metal catalytic properties were inhibited, and the capacity for CO chemisorption also decreased.