多级孔纳米结构上Ce/Zr基催化剂联合低温等离子体脱除VOCs的基础研究

项目名称： 多级孔纳米结构上Ce/Zr基催化剂联合低温等离子体脱除VOCs的基础研究

项目编号： No.21307088

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 环境科学、安全科学

项目作者： 豆宝娟

作者单位： 天津科技大学

项目金额： 26万元

中文摘要： 挥发性有机物(VOCs)引发的环境污染问题日益严峻，低温等离子体联合催化是控制VOCs的有效手段之一。项目针对多级孔纳米结构上Ce/Zr基催化剂联合低温等离子体强化脱除VOCs展开系统的研究工作，旨在揭示催化剂组成、载体结构与表面性质、放电参量等条件对催化活性、CO2选择性和副产物生成的影响规律，得到载体、催化剂对提高联合催化反应效果和抗积碳性能的改善途径；提出等离子体活性基团参与下VOCs催化的微观反应机理；建立低温等离子体-催化反应的热力学、动力学模型；获得兼顾低能耗和高净化效果的联合催化系统的运行条件和等离子体反应器结构的优化策略。以上研究工作将为等离子体联合催化技术在VOCs控制领域的发展提供必要的理论基础和研究经验。

中文关键词： 低温等离子体；催化；VOCs；多级孔；Ce/Zr

英文摘要： The problems of environmental pollution caused by volatile organic compounds (VOCs) are increasingly serious. And the technology of low temperature plasma combined with catalyst has been proved to be the most effective method to control VOCs. Systematic investigations on the strengthening removal of VOCs by using Ce/Zr based catalysts on hierarchical supports combined with low temperature plasma will be carried out in this subject. The influence rules of operation conditions including catalyst composition, structure and composition of the support discharge characters on the removal efficiency, CO2 selectivity and byproducts generation will be revealed. Furthermore, the improvement approach of the support and catalyst to enhance the efficiency of the plasma-catalytic reactionand anti-carbon deposit performance will be obtained. The reaction mechanism of catalytic cycle in the presence of plasma active groups will be put forward. Thermodynamic and kinetic models of the low temperature plasma-catalytic reaction will be established. Finally, the optimized strategies of operating conditions and the structure of plasma reactor which give consideration to low energy consumption and high removal efficiency will be obtained. Above research works can provide necessary theoretical foundation and research experience for the

英文关键词： Low temperature plasma；Catalysis；VOCs；Hierarchical pore；Ce/Zr