ADSORPTION AND REACTIVE DESORPTION OF C-6 HYDROCARBONS ON PT/SIO2

被引：11

作者：

FOGER, K ^{[1
]}

GRUBER, HL ^{[1
]}

机构：

[1] UNIV INNSBRUCK,INST PHYS CHEM,A-6020 INNSBRUCK,AUSTRIA

来源：

JOURNAL OF CATALYSIS | 1990年 / 122卷 / 02期

关键词：

D O I：

10.1016/0021-9517(90)90284-Q

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：

C6 hydrocarbons (n-hexane, 3-methylpentane, methylcyclopentane) were adsorbed on a well-dispersed Pt/SiO2 catalyst (dpt = 2.4 nm) at 298 and 420 K and subsequently desorbed with a stream of hydrogen in the temperature range 298 to 620 K. Seventy-two to eighty percent of desorption occurred at 298 K and the remainder during heating to 470 K. After adsorption at 298 K, >93% of hydrocarbons desorbed unchanged, but after adsorption at 420 K, only methylcyclopentane desorbed largely unchanged, while n-hexane and 3-methylpentane desorbed predominantly as methylcyclopentane. Implications for the mechanism of nonselective ring opening of methylcyclopentane and cyclic isomerization of C6 hydrocarbons are discussed. © 1990.

引用

页码：307 / 311

页数：5