CALORIMETRIC AND CATALYTIC INVESTIGATION OF ALKANES REACTIVITY OVER A VARIETY OF MFI STRUCTURES

被引：16

作者：

AUROUX, A ^{[1
]}

TUEL, A ^{[1
]}

BANDIERA, J ^{[1
]}

BENTAARIT, Y ^{[1
]}

GUIL, JM ^{[1
]}

机构：

[1] CSIC,INST QUIM FIS ROCASOLANO,E-28006 MADRID,SPAIN

来源：

APPLIED CATALYSIS A-GENERAL | 1993年 / 93卷 / 02期

关键词：

ALKANE ADSORPTION; CRACKING; MICROCALORIMETRY; SUBSTITUTED MFI; ZEOLITES;

D O I：

10.1016/0926-860X(93)85192-R

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：

Various substituted MFI zeolites have been investigated using adsorption microcalorimetry of different alkanes. The acid strength of the zeolite protons decreased following the sequence H-Al-MFI > H-Ga-MFI > H-Fe-MFI. The heats of adsorption decreased with the basicity of the alkane in the order n-butane > isobutane > propane. The variation of cracking selectivity in the conversion of alkanes was correlated with the basicity of the C-C bond. The selectivity towards dehydrogenation was related to the increased basicity of the C-H bond or to the attenuation of the acid strength of the zeolite.

引用

页码：181 / 190

页数：10

共 14 条

[1] CALORIMETRIC INVESTIGATION OF THE EFFECT OF DEALUMINATION ON THE ACIDITY OF ZEOLITES [J].