DIRECT PARTIAL OXIDATION OF BENZENE TO PHENOL ON ZEOLITE CATALYSTS

被引：37

作者：

BURCH, R

HOWITT, C

机构：

[1] Catalysis Research Group, Chemistry Department, University of Reading, Whiteknights, Reading

来源：

APPLIED CATALYSIS A-GENERAL | 1992年 / 86卷 / 02期

关键词：

ACID SITES (BRONSTED; LEWIS); BENZENE PARTIAL OXIDATION; INFRARED; PHENOL; ZEOLITES; (EU-1; ZSM-5);

D O I：

10.1016/0926-860X(92)85144-Z

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 partial oxidation of benzene to phenol at 330-degrees-C over various silica/alumina zeolite catalysts, using nitrous oxide as the oxidising agent, has been studied. An initial phenol yield of around 28% (based on benzene converted) was obtained over the protic form of ZSM-5 type zeolites, although this decreased to about 16% over a period of 24 h: no phenol at all was detected over Na-ZSM-5. An amorphous silica/alumina, and EU-1 type zeolites were also tested and were found to be much less active than the H-ZSM-5 materials. It is concluded that a zeolite possessing both Bronsted acidity and a particular internal structure is required to produce active and selective catalysts.

引用

页码：139 / 146

页数：8

共 11 条

[1] NATURE OF ACIDIC SITES ON SILICA-ALUMINA . A REVALUATION OF RELATIVE ABSORPTION COEFFICIENTS OF CHEMISORBED PYRIDINE [J].