CRACKING OF N-HEXANE AND N-BUTANE OVER SAPO5, MGAPO5 AND COAPO5

被引：37

作者：

MEUSINGER, J

VINEK, H

LERCHER, JA

机构：

[1] VIENNA TECH UNIV,INST PHYS CHEM,GETREIDEMARKT 9,A-1060 VIENNA,AUSTRIA

[2] VIENNA TECH UNIV,CHRISTIAN DOPPLER LAB HETEROGENE KATALYSE,A-1060 VIENNA,AUSTRIA

来源：

JOURNAL OF MOLECULAR CATALYSIS | 1994年 / 87卷 / 2-3期

关键词：

ALKANE CRACKING; N-BUTANE; COAPO5; N-HEXANE; MGAPO5; SAPO5;

D O I：

10.1016/0304-5102(93)E0206-V

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 acid site distribution and the catalytic activity of SAPO5, MgAPO5 and CoAPO5 samples for cracking of light alkanes was studied. The acid strength of all samples was found to be similar to that of faujasites, that of CoAPO5 being somewhat weaker than that of the other samples. The catalytic activity for cracking of n-hexane and n-butane was nearly identical for most of the SAPO5 samples investigated. For n-hexane cracking, one of the SAPO5 samples also showed a significantly higher activity than the other SAPO5 samples. The catalytic activity was three times higher for CoAPO5 and MgAPO5. Their higher activity is not due to a higher strength of the acid sites, but was concluded to be caused by a higher contribution of the bimolecular cracking mechanism.

引用

页码：263 / 274

页数：12

共 21 条

[1] PROBING THE REACTIVITY OF DIFFERENT SITES WITHIN A MOLECULE OR SOLID BY DIRECT COMPUTATION OF MOLECULAR SENSITIVITIES VIA AN EXTENSION OF THE ELECTRONEGATIVITY EQUALIZATION METHOD [J].