利用重金属有机混合污泥制备炭基复合过渡金属催化剂应用于NOX低温催化还原的基础研究

项目名称： 利用重金属有机混合污泥制备炭基复合过渡金属催化剂应用于NOX低温催化还原的基础研究

项目编号： No.21477071

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 化学工业

项目作者： 钱光人

作者单位： 上海大学

项目金额： 90万元

中文摘要： 本课题以典型工业重金属、有机混合污泥制备低温高效NOxSCR催化剂资源化利用为目标，按照调控混合污泥热解形成富表面含氧官能团、多孔炭基负载多元金属催化材料应用于低温高效NOx SCR选择催化还原的构想，以混合污泥体系热解制备过程的污泥组分匹配、金属组分匹配、形成历程、物理化学预处理等技术集成为手段，通过污泥热解衍生催化剂的组分结构特征、催化剂应用过程的NOx SCR低温转化效率和反应产物的系统研究，重点探究催化剂炭基孔结构特征、表面官能团、多元金属负载的优化匹配及微结构耦合对于NO分解化学吸附、金属-NO氧化、金属氧化物还原等NO-C主反应的促进机制和O2-C副反应的有效抑制机制，初步形成电镀污泥为主导的混合污泥制备富有表面官能团的多孔炭基负载多元重金属NO-SCR低温高效催化剂的理论体系，期待研究成果应用于电镀污泥及工业污泥的资源化利用，并延伸应用于其它工业污染物的吸附、催化或降解过程。

中文关键词： 重金属污泥；有机污泥；炭基复合过渡金属；氮氧化物；催化应用

英文摘要： This project is aimed to prepare efficient low-temperature NOxSCR catalysts via recycling typical industrial heavy metal sludge and organic sludge. Generally, the efficient low-temperature NO-SCR catalyst is predicated to be formed by regulating and controlling the sludge mixture and pyrolysis processes, and is characterized by its rich surface acid oxygen functional groups and porous carbon base loaded with multiple metal oxides. Its synthesis tactic is integrated with the technologies of sludge component matching, metal component matching, forming process and physical chemistry pretreatment during sludge mixture and pyrolysis. Specifically, through the component and structure characteristics of sludge catalyst, removal efficiency of catalysis application in low-temperature NOxSCR and characteristics of reacted product system, this project is focused on exploring characteristics of pore structure of catalyst carbon base, surface functional groups, optimization matching of multiple metal oxides loading and microstructure coupling. Their effects will be discussed on promoting NO-C main reaction mechanisms including NO decomposition chemical adsorption, metal-NO oxidation and metal oxide reduction. At the same time, their effects will also be studied on effective inhibition of O2-C side effects. After all, a theoretical system will be formed on the synthesis of efficient low-temperature NO-SCR catalyst with rich surface functional groups and porous carbon base loaded with multiple heavy metal oxides from a sludge mixture with electroplating sludge as the leading component. The achievements of this project are potential to be applied in electroplating and industrial sludge recycling, and other industrial pollutant adsorption or catalytic degradation.

英文关键词： electro-plating sludge;organic sludge;carbon-supported composite transition metals;NO;catalystic application