CATALYTIC REDUCTION OF NITROGEN MONOXIDE BY PROPENE IN THE PRESENCE OF OXYGEN OVER CERIUM ION-EXCHANGED ZEOLITES .1. GENERAL-CHARACTERISTICS OF THE REACTION AND EFFECTS OF ALKALINE-EARTH METAL ADDITION

被引：40
作者：
YOKOYAMA, C [1 ]
MISONO, M [1 ]
机构：
[1] UNIV TOKYO, FAC ENGN, DEPT SYNTHET CHEM, BUNKYO KU, TOKYO 113, JAPAN
来源：
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1994年 / 67卷 / 02期
关键词：
D O I：
10.1246/bcsj.67.557
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Catalytic reduction of dilute nitrogen monoxide by propene in the presence of excess oxygen was studied over various metal ion-exchanged zeolites. The presence of propene and oxygen was essential for the reaction. Ce-zeolites, particularly Ce-ZMS-5, showed a very high catalytic activity for the reduction of nitrogen monoxide. The high activity of Ce-ZSM-5 was attributed to its high selectivity (high efficiency of the use of propene for the reduction). The addition of alkaline ear-th metals to Ce-ZSM-5 enhanced the activity considerably and the Ce-ZSM-5 containing alkaline earth metals showed good performance even at a very high space velocity (CHSV=10(5) h-1).
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页码：557 / 562
页数：6
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