| 碳化硅协同分子筛负载型催化剂微波辅助催化氧化甲苯性能 |
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| 引用本文： | 王晓晖,卜龙利,刘海楠,张浩,孙剑宇,杨力,蔡力栋.碳化硅协同分子筛负载型催化剂微波辅助催化氧化甲苯性能[J].环境科学,2013,34(6):2107-2115. |
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| 作者姓名： | 王晓晖 卜龙利 刘海楠 张浩 孙剑宇 杨力 蔡力栋 |
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| 作者单位： | 西安建筑科技大学环境与市政工程学院,西安,710055 |
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| 基金项目： | 陕西省自然科学基础研究基金项目(2009JM7004); 陕西省教育厅省级重点实验室重点科研计划项目(2010JS027); 西安市产业技术创新计划-技术转移促进工程项目(CX12176-4) |
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| 摘 要： | 实验采用浸渍法制备分子筛负载型催化剂,微波场中利用吸波材料碳化硅和催化剂催化氧化甲苯废气.考察了碳化硅与分子筛负载铜-钒催化剂混合比及混合方式等条件变化对甲苯降解的影响,并通过电镜扫描、比表面积测试和X射线衍射分析等手段对催化剂进行了表征.研究表明,在固定床反应器底部装填质量比20%的碳化硅时,反应器兼有蓄热性能和低温催化氧化的优点,可有效提高微波能的利用和甲苯的催化氧化效率;微波功率75 W和47 W作用下,分子筛负载铜-钒催化剂和负载铜-钒-铈催化剂对甲苯的完全燃烧温度分别为325℃和160℃.表征发现,稀土元素铈的掺杂提高了活性组分在催化剂表面的分散度,催化剂的微孔结构保证了其对甲苯的高吸附性能,而非晶相型铜、钒氧化物的存在则提高了催化剂的催化活性.
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| 关 键 词： | 微波 碳化硅 分子筛负载型催化剂 催化氧化 甲苯 |
| 收稿时间： | 9/8/2012 12:00:00 AM |
| 修稿时间： | 2012/11/5 0:00:00 |
Synergetic Effects of Silicon Carbide and Molecular Sieve Loaded Catalyst on Microwave Assisted Catalytic Oxidation of Toluene |
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| WANG Xiao-hui,BO Long-li,LIU Hai-nan,ZHANG Hao,SUN Jian-yu,YANG Li and CAI Li-dong.Synergetic Effects of Silicon Carbide and Molecular Sieve Loaded Catalyst on Microwave Assisted Catalytic Oxidation of Toluene[J].Chinese Journal of Environmental Science,2013,34(6):2107-2115. |
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| Authors: | WANG Xiao-hui BO Long-li LIU Hai-nan ZHANG Hao SUN Jian-yu YANG Li and CAI Li-dong |
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| Institution: | School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China |
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| Abstract: | |
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| Keywords: | microwave silicon carbide molecular sieve loaded catalyst catalytic oxidation toluene |
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