MECHANISM OF HEXANE CRACKING IN ZSM-5

被引：15

作者：

SANTILLI, DS

机构：

[1] Chevron Research Company, Richmond, CA 94802-0627

来源：

APPLIED CATALYSIS | 1990年 / 60卷 / 01期

关键词：

hexene cracking; reaction mechanism; selectivity (shape-); zeolites;

D O I：

10.1016/S0166-9834(00)82177-6

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 selectivity of ZSM-5 for cracking n-hexane versus 3-methylpentane is shown to be a function of conversion. As conversion increases from ca. 1% to ca. 40% by adjusting the space velocity, (rate n-hexane conversion)/(rate 3-methylpentane conversion) increases. By adding small amounts of propene to n-hexane and to 3-methylpentane feeds, it is shown that the increased concentration of alkenes at higher conversions is the cause of the increase in selectivity for n-hexane conversion. How this fits in with postulated mechanisms in the literature for this reaction is discussed. © 1990.

引用

页码：137 / 141

页数：5

共 10 条

[1]

Argauer R.J., 1972, U.S. Patent, Patent No. [3,702,886, 3702886]

[2] CATALYSIS BY CRYSTALLINE ALUMINOSILICATES - CHARACTERIZATION OF INTERMEDIATE PORE-SIZE ZEOLITES BY THE CONSTRAINT INDEX [J].