| MnOx/TiO2催化剂催化燃烧去除废气中的正己烷 |
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| 引用本文： | 徐步金,黎维彬. MnOx/TiO2催化剂催化燃烧去除废气中的正己烷[J]. 化工环保, 2012, 32(4): 372-376 |
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| 作者姓名： | 徐步金 黎维彬 |
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| 作者单位： | 1. 清华大学深圳研究生院清洁生产重点实验室,广东深圳518055;清华大学环境学院,北京100084
2. 清华大学深圳研究生院清洁生产重点实验室,广东深圳518055;清华大学化学系,北京100084 |
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| 基金项目： | 深圳市2011年科技研发资金基础研究重点资助项目(JC201105201126A) |
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| 摘 要： | 采用溶胶-凝胶法制备了MnOx/TiO2催化剂,考察了n(Mn):n(Ti)、催化剂载体、气体流量对催化燃烧去除废气中正己烷效果的影响.实验结果表明:随着n(Mn):n(Ti)的增加,正己烷去除率先增加后减小,气体流量减小正己烷去除率增大;当n (Mn):n(Ti)为7.85％、气体流量为100 mL/min时,在240℃时正己烷的去除率为90％,MnOx/TiO2催化活性最大;MnOx/TiO2的催化活性优于MnOx/SiO2;SEM和XRD表征结果表明,所制备的MnOx/TiO2是一种活性物种MnOx高度分散的纳米结构催化剂.
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| 关 键 词： | 正己烷 催化燃烧 氧化锰 催化剂 废气处理 |
Removal of n-hexane from Waste Gas by Catalytic Combustion on MnOx/TiO2 |
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| Xu Bujin , Li Weibin. Removal of n-hexane from Waste Gas by Catalytic Combustion on MnOx/TiO2[J]. Environmental Protection of Chemical Industry, 2012, 32(4): 372-376 |
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| Authors: | Xu Bujin Li Weibin |
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| Affiliation: | 1,2 (1.Key Labaratory of Clean Production,Graduate School at Shenzhen,Tsinghua University,Shenzhen Guangdong 518055,China;2.Department of Chemistry,Tsinghua University,Beijing 100084,China;3.School of Environment,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The catalyst MnOx/TiO2 was prepared by sol-gel method and the factors affecting removal of n-hexane from waste gas by catalytic combustion were studies,such as:n(Mn)∶n(Ti),catalyst carrier and gas flow.The experimental results show that:With the increase of n(Mn)∶n(Ti),the n-hexane removal rate is first increased and then decreased,while with the decrease of gas flow,the n-hexane removal rate is increased;When n(Mn)∶n(Ti) is 7.85%,the gas flow is 100 mL/min,the reaction temperature is 240 ℃,the n-hexane removal rate is 90% and the catalytic activity of MnOx/TiO2 is the highest;The catalytic activity of MnOx/TiO2 is higher than that of MnOx/SiO2;The characterization results of SEM and XRD show that the prepared MnOx/TiO2 is a nanostructure catalyst with highly-dispersed active MnOx. |
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| Keywords: | n-hexane catalytic combustion manganese oxide catalyst waste gas treatment |
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