HYDROGEN-CYANIDE FORMATION IN SELECTIVE CATALYTIC REDUCTION OF NITROGEN-OXIDES OVER CU/ZSM-5

被引：53

作者：

RADTKE, F ^{[1
]}

KOEPPEL, RA ^{[1
]}

BAIKER, A ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,DEPT CHEM ENGN & IND CHEM,CH-8092 ZURICH,SWITZERLAND

来源：

APPLIED CATALYSIS A-GENERAL | 1994年 / 107卷 / 02期

关键词：

CU/ZSM-5; ETHENE; HYDROGEN CYANIDE; NITROUS OXIDE; NOX; PROPENE; SELECTIVE REDUCTION; ZEOLITE;

D O I：

10.1016/0926-860X(94)85150-6

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：

Hydrogen cyanide is formed over Cu/ZSM-5 during the selective catalytic reduction of NO(x) by either propene or ethene in the temperature range 450-600 K. Under the reaction conditions used (reactant feed: 973 ppm NO, 907 ppm propene or 1448 ppm ethene, 2% oxygen, W/F= 0.1 g s cm-3), the concentration of hydrogen cyanide reaches 20, respectively, 30 ppm, depending on whether ethene or propene are used as hydrocarbons. In addition, significant N2O formation is observed at temperatures lower than 700 K, independent of the hydrocarbon used.

引用

页码：L125 / L132

页数：8

共 27 条

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