Potential reaction paths in NOx reduction over Cu/ZSM-5

被引：67

作者：

Beutel, T ^{[1
]}

Adelman, B ^{[1
]}

Sachtler, WMH ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,DEPT CHEM,CTR CATALYSIS & SURFACE SCI,VN IPATIEFF LAB,EVANSTON,IL 60208

来源：

CATALYSIS LETTERS | 1996年 / 37卷 / 3-4期

关键词：

NOx reduction; Cu/ZSM-5; catalyst; adsorbed acetone oxime; IR spectra of; reaction with (NO)-N-15; formation of (NN)-N-14-N-15; formation of (NNO)-N-14-N-15;

D O I：

10.1007/BF00807742

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 reaction of NO with adsorbed acetone oxime has been studied over Cu/ZSM-5 employing FTIR and MS. It is found that (NOgas)-N-15 reacts with N-14 labelled acetone oxime and/or its hydrolysis product, hydroxylamine, to form (NNO)-N-14-N-15 and (NN)-N-14-N-15 at 40 degrees C. As acetone oxime is easily formed from alkyl radicals and NO via alkylnitroso compounds, the results indicate possible reaction paths for the SCR of NOx by hydrocarbons over zeolite based catalysts. The isotopic data suggest predominant formation of N-N bonds occurs via interaction of gaseous NO with a nitrogen containing adsorbed complex.

引用

页码：125 / 130

页数：6

共 23 条

[1]

ADELMAN BJ, IN PRESS J CATAL

[2] IN-SITU HIGH-TEMPERATURE FTIR STUDIES OF NOX REDUCTION WITH PROPYLENE OVER CU/ZSM-5 CATALYSTS [J].

BELL, VA ;

FEELEY, JS ;

DEEBA, M ;

FARRAUTO, RJ .

CATALYSIS LETTERS, 1994, 29 (1-2) :15-26

[3] POTENTIAL REACTION INTERMEDIATES OF NOX REDUCTION WITH PROPANE OVER CU/ZSM-5 [J].

BEUTEL, T ;

ADELMAN, BJ ;

LEI, GD ;

SACHTLER, WMH .

CATALYSIS LETTERS, 1995, 32 (1-2) :83-92

[4]

Califan S., 1955, Z. Phys. Chem., V5, P240

[5]

CORNU A, 1966, COMPILATION MASS SPE

[6] THE RATE-DETERMINING STEP IN THE SELECTIVE REDUCTION OF NITRIC-OXIDE BY METHANE OVER A CO ZSM5 CATALYST IN THE PRESENCE OF OXYGEN [J].

COWAN, AD ;

DUMPELMANN, R ;

CANT, NW .

JOURNAL OF CATALYSIS, 1995, 151 (02) :356-363

[7] INFRARED SPECTRUM, MOLECULAR STRUCTURE, AND THERMODYNAMIC FUNCTIONS OF HYDROXYLAMINE [J].

GIGUERE, PA ;

LIU, ID .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1952, 30 (12) :948-962

[8]

IWAMOTO M, 1994, STUD SURF SCI CATAL, V84, P1395

[9] REMOVAL OF NITROGEN MONOXIDE THROUGH A NOVEL CATALYTIC PROCESS .1. DECOMPOSITION ON EXCESSIVELY COPPER-ION EXCHANGED ZSM-5 ZEOLITES [J].

IWAMOTO, M ;

YAHIRO, H ;

TANDA, K ;

MIZUNO, N ;

MINE, Y ;

KAGAWA, S .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (09) :3727-3730

[10] IR-SPECTROSCOPY OF HYDROCYANIC ACID ADSORPTION, ACETAMIDE ADSORPTION AND ACETONITRILE ADSORPTION ON ALUMINUM-OXIDE [J].

KRIETENBRINK, H ;

KNOZINGER, H .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-FRANKFURT, 1976, 102 (1-4) :43-56

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