HYDROGEN PRETREATMENT EFFECTS ON THE HYDROGENOLYSIS OF METHYLCYCLOPENTANE ON PT/SIO2 AND PT/AL2O3 CATALYSTS
被引:50
作者:
KRAMER, R
论文数: 0引用数: 0
h-index: 0
机构:Univ Innsbruck, Austria
KRAMER, R
FISCHBACHER, M
论文数: 0引用数: 0
h-index: 0
机构:Univ Innsbruck, Austria
FISCHBACHER, M
机构:
[1] Univ Innsbruck, Austria
来源:
JOURNAL OF MOLECULAR CATALYSIS
|
1989年
/
51卷
/
03期
关键词:
Alumina;
-;
Hydrocarbons--Processing;
D O I:
10.1016/0304-5102(89)80004-5
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The effect of different hydrogen pretreatments on the catalytic performance of supported platinum was investigated in the hydrogenolysis of methylcyclopentane on catalysts of different dispersions. These catalysts were prepared either by sintering of conventional supported catalysts or by HV-deposition of platinum onto amorphous films of silica or alumina (model catalysts). A hydrogen pretreatment at 400°C resulted in a lower activity and in a selectivity shift to less n-hexane formation compared to results with hydrogen pretreatment at 275°C. The effect of high temperature pretreatment was most pronounced with evaporated model catalysts.