ON THE THERMAL-STABILITY OF ZEOLITE BETA

被引：56

作者：

LIU, SB ^{[1
]}

WU, JF ^{[1
]}

MA, LJ ^{[1
]}

TSAI, TC ^{[1
]}

WANG, I ^{[1
]}

机构：

[1] NATL TSING HUA UNIV,DEPT CHEM ENGN,HSINCHU 30043,TAIWAN

来源：

JOURNAL OF CATALYSIS | 1991年 / 132卷 / 02期

关键词：

D O I：

10.1016/0021-9517(91)90160-6

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 thermal stability of zeolite beta has been studied by 129Xe NMR and adsorption isotherm of adsorbed xenon in correlation with data from X-ray diffraction and 27Al magic-angle-spinning NMR experiments. Samples subject to different calcination and dehydration conditions were examined. Minor destruction of the crystalline framework resulting from dealumination processes has been found for samples treated at a temperature as small as 400°C. At higher temperatures, a severe process of dealumination involving the breaking of 12-membered rings leads to the conclusion that the maximum regeneration temperature of zeofite beta lies near 760°C. © 1991.

引用

页码：432 / 439

页数：8

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