Phenyl VOCs catalytic combustion on supported CoMn/AC oxide catalyst
发布时间：2024-10-10
点击次数：
- 影响因子：
- 6.064
- DOI码：
- 10.1016/j.jiec.2014.04.035
- 所属单位：
- 重庆工商大学
- 教研室：
- 化学工程系
- 发表刊物：
- journal of industrial and engineering chemistry
- 项目来源：
- 大气环境模拟与污染控制四川省高校重点实验室
- 关键字：
- Supported CoMn oxide catalyst；Phenyl VOCs；Catalytic combustion；Active component
- 摘要：
- Supported CoMn/AC composite oxide catalysts were prepared by a typical impregnation method at different calcination temperatures. The prepared CoMn/AC catalysts were characterized, and the catalytic activity of the prepared supported CoMn/AC oxide catalysts was also investigated by the catalytic combustion of phenyl volatile organic compounds (VOCs) (benzene, toluene, and ethylbenzene). XRD and XPS results indicated that MnCo2O4 and CoMn2O4 were the main crystal phase species in the prepared supported CoMn/AC oxide catalysts. The active components were observed to be highly dispersed and had small crystal sizes. The toluene catalytic combustion results demonstrated that the CAT350 catalyst had higher toluene catalytic combustion activity than the CTA250, CAT300, and CAT400 catalysts. The toluene catalytic combustion conversion of the CAT350 catalyst exceeded 93.5% at 235 °C, with a decreased toluene concentration in air of less than 130 ppm at 250 °C. The order of toluene catalytic activity of the supported CoMn/AC oxide catalysts was as follows: CAT250 < CAT300 ≈ CAT400 < CAT350. The catalytic combustion activity and stability of the CAT350 catalyst also increased with the increase in reaction temperature. The catalytic activity of the CAT350 catalyst was investigated to bring about the complete oxidation of benzene, ethylbenzene, and toluene. The combustibility of phenyl VOCs on the CAT350 catalyst was observed to follow the order benzene < ethylbenzene < toluene. Therefore, the differences in the phenyl VOC catalytic combustion performances of the supported CoMn/AC composite oxide catalysts can be attributed to the different physical chemistry properties of the phenyl VOC molecules and the catalyst.
- 第一作者：
- 周桂林
- 合写作者：
- 何小玲,刘胜,谢红梅,傅敏
- 论文类型：
- 源刊论文
- 通讯作者：
- 周桂林
- 论文编号：
- C68LT9BWJVXS6X6L1E9VWHOG7BSIIWRK
- 学科门类：
- 工学
- 一级学科：
- 化学工程与技术
- 文献类型：
- Journal Article
- 期号：
- 21
- 页面范围：
- 932–941
- 是否译文：
- 否
- 发表时间：
- 2015-02-01