ACTIVITY AND STABILITY OF RuO2/γ-Al2O3 CATALYST IN WET AIR OXIDATION

YANG Shaoxia; FENG Yujie; CAI Weimin; WAN Jiafeng

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ACTIVITY AND STABILITY OF RuO₂/γ-Al₂O₃ CATALYST IN WET AIR OXIDATION

更新时间：2025-12-10

- ACTIVITY AND STABILITY OF RuO₂/γ-Al₂O₃ CATALYST IN WET AIR OXIDATION
- CIESC Journal Issue 9, Pages: 1240-1245(2003)
- 作者机构：
  
  1. 哈尔滨工业大学市政环境学院,黑龙江,哈尔滨,150001
  2. 上海交通大学环境科学与工程学院,上海,200030
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 September 2003，
  
  Published：25 September 2003
- 稿件说明：
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YANG Shaoxia, FENG Yujie, CAI Weimin, et al. ACTIVITY AND STABILITY OF RuO₂/γ-Al₂O₃ CATALYST IN WET AIR OXIDATION[J]. CIESC Journal, 2003, (9): 1240-1245.
DOI：

YANG Shaoxia, FENG Yujie, CAI Weimin, et al. ACTIVITY AND STABILITY OF RuO₂/γ-Al₂O₃ CATALYST IN WET AIR OXIDATION[J]. CIESC Journal, 2003, (9): 1240-1245. DOI：

摘要

采用浸渍法制备了RuO2/γ-Al2O3催化剂，以苯酚为目标有机物重点研究了进水pH值和温度对RuO2/γ-Al2O3催化剂组分溶出和活性的影响.结果表明，催化剂在降解苯酚过程中存在着组分溶出现象，随着进水溶液pH值降低催化剂组分溶出量增加，且在进水为酸性时苯酚去除率高于碱性时的去除率.反应温度升高，催化剂组分溶出量降低，苯酚去除率增加.采用在负载型RuO2/γ-Al2O3催化剂中掺杂Ce和Zr的方法对抑制催化剂组分溶出进行了初步研究，发现掺杂Ce和Zr后有效地降低了RuO2/γ-Al2O3催化剂组分的溶出，且提高了催化剂的活性.

Abstract

A kind of CWAO catalyst

RuO2/γ-Al2O3

was prepared by dipping Al2O3 into aqueous solution composed of RuCl3. Taking phenol as organic substrate

the influences of the initial pH of the feed solution and degradation temperatures on the stability and the activity of RuO2/γ-Al2O3 catalyst were investigated. Results showed that leaching of Ru and Al existed in the process of CWAO of phenol and the amount of leached Ru and Al increased with decreasing initial pH of the feed solution

but phenol removal was higher in the acidic feed solution than that in the alkaline feed solution. The amount of leached Ru and Al decreased and phenol removal was higher with increasing degradation temperature. The influences of Ce and Zr added to RuO2/γ-Al2O3 catalyst on the stability and the activity of the catalyst were also studied. The result showed that doping of Ce and Zr into RuO2/γ-Al2O3 catalyst can promote the stability and activity of the catalyst prepared.

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