超临界相中的长链烷烃催化脱氢

摘要：

@@ The preparation of olefins from long chain alkanes by catalytic dehydrogenation is an important process in synthetic detergents and surface-active agents[1]. Because of equilibrium limitation, the present process only reaches about 10 % of the conversion with 90 % of the selectivity. In addition, the lifetime of the catalysts ( e. g. Pt-Sn/Al2O3) is around 40 d owing to the severe coke formation even with n(H2 )/n(alkane)= 8. Although the catalysts have been well improved, both conversion and selectivity were hardly enhanced. New technique is therefore required to improve the process.

机标关键词：超临界相、长链烷烃、催化脱氢、catalytic dehydrogenation

所属期刊栏目：20

分类号：O643(物理化学（理论化学）、化学物理学)

资助基金：国家自然科学基金29873063

在线出版日期：2005-08-11（万方平台首次上网日期，不代表论文的发表时间）

页数：共2页

页码：493-494