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
AUROUX, A
BENTAARIT, Y
[J]. THERMOCHIMICA ACTA, 1987, 122 (01) : 63 - 70
[2] AUROUX A, 1985, THERMOCHIM ACTA, V93, P55
[3] CATALYTIC INVESTIGATION OF THE DEHYDROGENATION PROPERTIES OF PENTASIL TYPE ZEOLITES AS COMPARED WITH THEIR CRACKING PROPERTIES
BANDIERA, J
BENTAARIT, Y
[J]. APPLIED CATALYSIS, 1990, 62 (02): : 309 - 316
[4] ON THE ENHANCED DEHYDROGENATION VERSUS CRACKING ABILITY OF AN ACIDIC GALLIUM MFI - A TENTATIVE ACID-BASE INTERACTION-MODEL
BANDIERA, J
TAARIT, YB
[J]. APPLIED CATALYSIS, 1991, 76 (02): : 199 - 208
[5] BANIERA J, 1984, 6TH P ZEOL INT C REN, P337
[6] DESSAU RM, 1984, 8TH P INT C CAT BERL, V2, P305
[7] KAZANSKY VB, 1988, 9TH P INT C CAT CALG, P1426
[8] MONOMOLECULAR AND BIOMOLECULAR MECHANISMS OF PARAFFIN CRACKING - N-BUTANE CRACKING CATALYZED BY HZSM-5
KRANNILA, H
HAAG, WO
GATES, BC
[J]. JOURNAL OF CATALYSIS, 1992, 135 (01) : 115 - 124
[9] THE MECHANISM OF ISOBUTANE CRACKING OVER AMORPHOUS AND CRYSTALLINE ALUMINOSILICATES
LOMBARDO, EA
HALL, WK
[J]. JOURNAL OF CATALYSIS, 1988, 112 (02) : 565 - 578
[10] NACCACHE C, 1986, CHEM EXPRESS CHEM SO, V1, P691

← 1 2 →