INVESTIGATION OF THE DIFFERENT STATES OF GALLIUM IN CRYSTALLINE GALLOSILICATES WITH PENTASIL STRUCTURE AND THEIR ROLE IN PROPANE AROMATIZATION

被引：78

作者：

KHODAKOV, AY ^{[1
]}

KUSTOV, LM ^{[1
]}

BONDARENKO, TN ^{[1
]}

DERGACHEV, AA ^{[1
]}

KAZANSKY, VB ^{[1
]}

MINACHEV, KM ^{[1
]}

BORBELY, G ^{[1
]}

BEYER, HK ^{[1
]}

机构：

[1] HUNGARIAN ACAD SCI,CENT RES INST,H-1361 BUDAPEST 5,HUNGARY

来源：

ZEOLITES | 1990年 / 10卷 / 06期

关键词：

extraframework species; Gallosilicate; propane aromatization;

D O I：

10.1016/S0144-2449(05)80320-3

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：

Results obtained by i.r. and e.p.r. spectroscopy show that at least two gallium-containing extraframework species differing in location, chemical nature, and acidic behavior are present in gallosilicate isostructural with ZSM-5 zeolite. Both species are formed in larger amounts by gallium release from the framework during catalyst regeneration processes. One of them, partly located on the outer crystallite surface, is found to be involved as a catalytically active site in propane aromatization. The catalytic activity is attributed to Lewis acidity. © 1990 Butterworth-Heinemann.

引用

页码：603 / 607

页数：5

共 15 条

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