Reactivities of H-mordenite for the adsorption and oxidation of ammonia and pyridine

被引：28
|
作者：
Aboul-Gheit, AK [1 ]
机构：
[1] Egyptian Petr Res Inst, Cairo 11787, Egypt
来源：
SOLID STATE IONICS | 1997年 / 101卷
关键词：
adsorption; desorption; oxidation; ammonia; pyridine; H-mordenite; differential scanning calorimetry;
D O I：
10.1016/S0167-2738(97)00218-X
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：
Desorption and oxidation of presorbed ammonia and pyridine on H-mordenite were carried out in a differential scanning calorimetry (DSC) cell in nitrogen and oxygen atmospheres. Adsorption of ammonia on the strong acid sites of the zeolite were found to be less strong than the adsorption of pyridine on these sites. In a current of nitrogen, no decomposition of the investigated bases took place up to 600 degrees C. Oxidation of pyridine on H-mordenite occurred at higher temperatures than the oxidation of ammonia. DSC thermograms could be completed by decreasing the heating rate.
引用
收藏
页码：893 / 897
页数：5
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