|
|||||
|
|
Transformation of n-hexane on Al2O3and SiO2supported Pt, Pt+Ga and Ir+Pt+Ga catalysts prepared by anchoring methods |
|
| Authors: | Sándor G&#;b?l?s József L Margitfalvi József L Margitfalvi Mihály Heged&#;s Yurii A Ryndin and Yurii A Ryndin |
| Institution: | (1) Chemical Research Center, Institute of Surface Chemistry and Catalysis, Hungarian Academy of Sciences, 1525 Budapest, POB 17, Hungary;(2) Chemical Research Center, Institute of Surface Chemistry and Catalysis, Hungarian Academy of Sciences, 1525 Budapest, POB 17, Hungary;(3) Chemical Research Center, Institute of Surface Chemistry and Catalysis, Hungarian Academy of Sciences, 1525 Budapest, POB 17, Hungary;(4) Chemical Research Center, Institute of Surface Chemistry and Catalysis, Hungarian Academy of Sciences, 1525 Budapest, POB 17, Hungary;(5) Boreskov Institute of Catalysis, Russian Academy of Sciences, Novosibirsk 630090, Russia;(6) Boreskov Institute of Catalysis, Russian Academy of Sciences, Novosibirsk 630090, Russia |
| Abstract: | Summary Transformation of n-hexane over Al2O3and SiO2supported Pt, Pt+Ga and Ir+Pt+Ga catalysts was studied in a continuous-flow reactor operated under slug-pulse mode at 520°C. Bimetallic catalysts were prepared by introducing first Ga(OEt)3and then diallylplatinum as precursor compounds. Iridium was then introduced viadecomposition of Ir4(CO)12adsorbed onto Pt+Ga catalysts. The addition of Ga to Pt/SiO2catalyst decreased hydrogenation, aromatization and hydrogenolysis selectivity. Over Pt/Al2O3catalyst Ga increased hydrogenolysis selectivity and decreased isomerization and C5-cyclization. The main effect of Ir was to increase hydrogenolysis selectivity and the stability of catalysts.</o:p> |
| Keywords: | hydrogenolysis catalyst aromatization n-Hexane Pt+Ga/SiO2 Pt+Ga/Al2O3 Ir+Pt+Ga/SiO2 Ir+Pt+Ga/Al2O3 |
| 本文献已被 SpringerLink 等数据库收录！ | |