元素掺杂提高低温选择性催化还原法催化剂抗水抗硫性研究  

Study on Water-and Sulfur-Resistance of Low-Temperature SCR Catalysts Improved by Element Doping

作　　者：官贞珍 周世锋 陈干 郭煜 Guan Zhenzhen;Zhou Shifeng;Chen Gan;Guo Yu(College of Energy and Mechanical Engineering,Shanghai University of Electric Power,Shanghai,200090)

机构地区：[1]上海电力大学能源与机械工程学院,上海200090

出　　处：《化学通报》2024年第6期680-684,共5页Chemistry

摘　　要：H_(2)O和SO_(2)是烟气中的固有成分,而低温选择性催化还原法(LT-SCR)催化剂易受烟气中H_(2)O和SO_(2)中毒。元素掺杂改性是最有效的提高SCR催化剂抗水、抗硫性的方法之一。本文介绍了元素掺杂改性提高Mn基、V基、Ce基、Fe基等低温SCR催化剂抗水、抗硫性的方法以及理论计算在抗水、抗硫低温脱硝催化剂设计中的应用,以期为提高低温SCR催化剂抗水、抗硫性优化设计及构建提供理论基础。H_(2)O and SO_(2)are intrinsic components in flue gases.Low-temperature selective catalytic reduction(LT-SCR)catalysts are susceptible to H_(2)O and SO_(2)poisoning.Elemental doping is one of the most effective methods to improve the water-and sulfur-resistance of SCR catalysts.The method of improving the water-and sulfur-resistance of Mn-,V-,Ce-and Fe-based low-temperature SCR catalysts by element doping was introduced,and the application of theoretical computation in the design of water-and sulfur-resistance of low-temperature DeNOx catalysts was presented.The aim is to provide a theoretical basis for the optimal design and construction of improved water-and sulfur-resistance of LT-SCR catalysts.

关 键 词：低温SCR脱硝催化剂 元素掺杂 抗水 抗硫 理论计算 

分 类 号：TQ426[化学工程]