Catalytic wet oxidation of p-chlorophenol over supported noble metal catalysts

被引：96

作者：

Qin, JY ^{[1
]}

Zhang, QL ^{[1
]}

Chuang, KT ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T2G 2G6, Canada

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2001年 / 29卷 / 02期

关键词：

catalytic wet oxidation; p-chlorophenol; supported noble metal catalyst; activated carbon;

D O I：

10.1016/S0926-3373(00)00200-9

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：

Heterogeneous catalytic wet oxidation of aqueous p-chlorophenol (p-CP) solution was investigated at 453 K and 2.6 MPa in a slurry reactor. The performance of noble metal catalysts was compared with that of traditional manganese catalysts. Activated carbon supported catalysts showed significant higher activities for total organic carbon (TOC) reduction than those supported on alumina or cerium oxide. Pt was found to be the most active metal for p-chlorophenol oxidation. The activities of noble metal catalysts were found to correlate with heat of formation of metal oxides. CO2 is the predominant oxidation product with formation of minor p-benzoquinone and acetic acid as intermediate compounds. Possible reaction pathway was also discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：115 / 123

页数：9

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