EFFECT OF SILICON-TO-ALUMINUM RATIO AND TEMPLATE ON THE CRACKING OF C6-C8 ALKENES OVER ZSM-5 ZEOLITE

被引：8

作者：

NAYAK, VS

MOFFAT, JB

机构：

[1] UNIV WATERLOO, DEPT CHEM, WATERLOO N2L 3G1, ONTARIO, CANADA

[2] UNIV WATERLOO, GUELPH WATERLOO CTR GRAD WORK CHEM, WATERLOO N2L 3G1, ONTARIO, CANADA

来源：

APPLIED CATALYSIS | 1990年 / 60卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

alkene cracking; selectivity (C[!sub]3[!/sub]C[!sub]5[!/sub] alkenes); silicon-to-aluminum ratio; zeolites;

D O I：

10.1016/S0166-9834(00)82174-0

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 cracking of 1-hexene, 1-heptene and 1-octene has been studied on ZSM-5 zeolites of various silicon-to-aluminium (Si/Al) ratios prepared with tetrapropyl ammonium bromide (TPAB) as templating agent and one sample (Si/Al=36) prepared by use of ammonia in place of TPAB. The activities and selectivities are found to be similar for the catalysts prepared with the two templating agents. In addition, the cracking activity is shown to decrease with increasing Si/Al while the activity per aluminum atom increases with decrease in the aluminum content of the zeolite up to a Si/Al ratio of approximately 1000. The ease with which the alkenes undergo cracking is found to be in the order octenes> heptenes> hexenes. The cracking of alkenes results mainly in the production of C3, C4 and C5 alkenes. © 1990.

引用

页码：87 / 99

页数：13

共 11 条

[1] THE MECHANISM OF CATALYTIC CRACKING OF NORMAL-ALKENES ON ZSM-5 ZEOLITE [J].