An FTIR study an the mechanism of the reaction between nitrogen dioxide and propene over acidic mordenites

被引：62

作者：

Gerlach, T ^{[1
]}

Schütze, FW ^{[1
]}

Baerns, M ^{[1
]}

机构：

[1] Inst Appl Chem Berlin Adlershof ACA, D-12484 Berlin, Germany

来源：

JOURNAL OF CATALYSIS | 1999年 / 185卷 / 01期

关键词：

D O I：

10.1006/jcat.1999.2483

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：

Nitrosonium ions, NO+, are formed upon reaction between NO, NO2, and the Bronsted acid sites of H-MOR. It is shown that the NO+ ions are highly reactive towards propene, forming propenal oxime at 120 degrees C. At temperatures above 170 degrees C, propenal oxime is dehydrated to acrylonitrile. A mechanism is proposed to explain the acrylonitrile formation. The nitrile can be hydrolysed to yield adsorbed ammonium ions, which are known to be efficient in reducing nitrogen oxides to nitrogen. The dehydration of propenal oxime appears to be the rate determining step in nitrile formation. (C) 1999 Academic Press.

引用

页码：131 / 137

页数：7

共 22 条

[1]

[Anonymous], 1984, INFRARED SPECTROSCOP

[2]

Avram M., 1972, Infrared Spectroscopy Applications to Organic Chemistry

[3] NO adsorption, desorption, and reduction by CH4 over Mn-ZSM-5 [J].

Aylor, AW ;

Lobree, LJ ;

Reimer, JA ;

Bell, AT .

JOURNAL OF CATALYSIS, 1997, 170 (02) :390-401

[4] 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

[5] Propene oligomerization on H-mordenite: Hydrogen-bonding interaction, chain initiation, propagation and hydrogen transfer studied by temperature-programmed FTIR and UV-VIS spectroscopies [J].

Geobaldo, F ;

Spoto, G ;

Bordiga, S ;

Lamberti, C ;

Zecchina, A .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (06) :1243-1249

[6]

GERLACH T, IN PRESS CHEM ENG SC

[7]

GERLACH T, IN PRESS J APPL CA B

[8] FT-IR study of NO+O2 co-adsorption on H-ZSM-5:: re-assignment of the 2133 cm-1 band to NO+ species [J].

Hadjiivanov, K ;

Saussey, J ;

Freysz, JL ;

Lavalley, JC .

CATALYSIS LETTERS, 1998, 52 (1-2) :103-108

[9] Infrared spectroscopy studies of the mechanism of the selective reduction of NOx over Cu-ZSM-5 catalysts [J].

Hayes, NW ;

Joyner, RW ;

Shpiro, ES .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1996, 8 (03) :343-363

[10]

Hesse M., 1991, SPEKTROSKOPISCHE MET

← 1 2 3 →