Benzene oxidation with ozone over supported manganese oxide catalysts: Effect of catalyst support and reaction conditions

被引：165

作者：

Einaga, Hisahiro ^{[1
]}

Ogata, Atsushi ^{[2
]}

机构：

[1] Kyushu Univ, Dept Energy & Mat Sci, Fac Engn Sci, Fukuoka 8168580, Japan

[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058569, Japan

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 164卷 / 2-3期

关键词：

Ozone; Benzene removal; Manganese oxide; Catalytic oxidation; Effect of catalyst support; ACETONE OXIDATION; DECOMPOSITION; CYCLOHEXANE; MECHANISM; STATE; CO;

D O I：

10.1016/j.jhazmat.2008.09.032

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Catalytic oxidation of gaseous benzene with ozone was carried out over supported manganese oxides to investigate the factors controlling the catalytic activities. The rate for benzene oxidation linearly increased with the surface area of catalyst, regardless of the kinds of catalyst support, whereas the ratio of ozone decomposition rate to benzene oxidation rate was larger for SiO2-supported catalyst than Al2O3-, TiO2, and ZrO2-supported catalysts. The rate for benzene oxidation and CO. selectivity increased with the reaction temperature (22-100 degrees C) and were improved by the addition of water vapor to reaction gases. Benzene conversion and carbon balance increased with ozone concentration. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1236 / 1241

页数：6

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