Catalytic wet oxidation of aniline over Ru catalysts supported on a modified TiO2

被引：21
|
作者：
Song, Mingguang
Wang, Yunsong [1 ]
Guo, Yun [1 ]
Wang, Li
Zhan, Wangcheng
Guo, Yanglong
Lu, Guanzhong
机构：
[1] East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2017年 / 38卷 / 07期
基金：
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词：
Catalystic wet air oxidation; Physico-chemical; Aniline removal; Carbon deposites; AIR OXIDATION; BIODEGRADABILITY ENHANCEMENT; SUBSTITUTED PHENOLS; RUTHENIUM CATALYSTS; AROMATIC-COMPOUNDS; AQUEOUS-SOLUTIONS; P-NITROPHENOL; WASTE-WATER; ACETIC-ACID; TEMPERATURE;
D O I：
10.1016/S1872-2067(17)62848-1
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The catalytic wet air oxidation of aniline over Ru catalysts supported on modified TiO2 (TiO2, Tio(0.9)Ce(0.1)O(2), Tio(0.9)Zr(0.1)O(2)) is investigated. A series of characterization techniques are conducted to determine the relationship between the physico-chemical properties and the catalytic performance. As a result of the good metal dispersion and large number of surface oxygen species, the Ru/Tio(0.9)Zr(0.1)O(2) catalyst presents the best catalytic activity among the tested samples. The effects of the operating conditions on the reaction are investigated and the optimal reaction conditions are determined. Based on the relationship between the by-products concentration and the reaction time, the reaction path for the catalytic oxidation of aniline is established. Carbonaceous deposits on the surface of the support are known to be the main reason for catalyst deactivation. The catalysts maintain a constant activity even after three consecutive cycles. (C) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：1155 / 1165
页数：11
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