STUDIES ON CATALYSIS OF FERROSILICATES FOR OXIDATION-DEHYDROGENATION OF ETHYLBENZENE - EFFECT OF EXCHANGED CATIONS AND HYDROTHERMAL TREATMENT ON ACTIVITY

被引：0
|
作者：
ZHANG, CL
WU, ZY
KAN, QB
机构：
来源：
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 1995年 / 16卷 / 03期
关键词：
FEZSM-5; ALKALI CATION; OXIDATION DEHYDROGENATIONS OF ETHYLBENZENE; HYDROTHERMAL TREATMENT; ACTIVE CENTERS;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The catalytic activity and selectivity of FeZSM-5 catalysts for oxidation-dehydrogenation of ethylbenzene(EB) were examined at 823 K and EB : O-2 = 1.0. The influence of exchanged cations, hydrothermal treatment and dispersity of Fe2O3 on oxidation-dehydrogenation activity of EB over FeZSM-5 was also studied. XPS, ESR and TPR techniques were used for the determination of states and properties of iron in FeZSM-5. The results indicate that framework iron and highly dispersed nonframework iron used as Lewis acidic sites and basic sites with suitable strength construct the active centers of EB oxidation-dehydrogenation.
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页码：449 / 453
页数：5
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