超低温氨气选择性脱硝催化剂的研究进展  

A review of ammonia selective denitrification catalysts at ultra-low temperature

作　　者：宋坤莉 肖雷 马丹丹 肖朋 杨莎莎 石建稳 SONG Kunli;XIAO Lei;MA Dandan;XIAO Peng;YANG Shasha;SHI Jianwen(School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,Shaanxi,China;Qiyuan(Xi’an)Dae Young Environmental Protection Technology Co.,Ltd.,Xi’an 710018,Shaanxi,China)

机构地区：[1]西安交通大学电气工程学院,陕西西安710049 [2]启源(西安)大荣环保科技有限公司,陕西西安710018

出　　处：《化工进展》2025年第4期2028-2035,共8页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(21972110)。

摘　　要：综述了选择性催化脱硝的发展现状,详细介绍了超低温选择性催化脱硝在节约能耗、降低成本、削弱烟尘和二氧化硫毒害方面的独特优势,并进一步总结了超低温脱硝催化剂的类型、催化剂结构特点及其在超低温脱硝应用中面临的主要问题,包括超低温脱硝活性低、抗水性差和稳定性不足等。此外,还概述了超低温脱硝催化剂在抗水中毒和抗硫中毒方面的研究进展。最后,提出了超低温脱硝催化剂的未来发展方向,强调需要在提高催化剂活性、改善抗水性和抗硫性、增加催化剂产量以及反应机理等方面进行深入研究。总之,超低温氨气选择性脱硝催化剂具有显著的环境和经济效益,在大气污染控制领域具有广阔的应用前景。This review examines the current development in selective catalytic reduction(SCR)for denitrification(de-NOx),and introduces the unique advantages of ultra-low temperature SCR in terms of energy savings,cost reduction,mitigation of dust and anti SO_(2) poisoning.It further summarizes the types of ultra-low temperature SCR catalysts,their structural characteristics,and the main challenges in applications,such as low de-NOx activity,poor H2O tolerance,and insufficient stability.Additionally,this review outlines the research progress in H2O and SO_(2) poisoning resistance of ultra-low temperature SCR catalysts.Finally,it proposes future development directions for ultra-low temperature SCR catalysts,emphasizing the need for in-depth research to enhance catalyst activity,improve H2O and SO_(2) tolerance,increase catalyst production,and understand the reaction mechanisms.In conclusion,ultra-low temperature ammonia SCR catalysts offer significant environmental and economic benefits,with broad application prospects in the field of air pollution control.

关 键 词：超低温 环境 催化剂 脱硝 氧化 

分 类 号：O643.36[理学—物理化学] X701[理学—化学]