Chemical Industry and Engineering Progress ›› 2025, Vol. 44 ›› Issue (4): 2028-2035.DOI: 10.16085/j.issn.1000-6613.2024-0588

• Industrial catalysis • Previous Articles     Next Articles

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

SONG Kunli1(), XIAO Lei2, MA Dandan1, XIAO Peng2, YANG Shasha2, SHI Jianwen1()   

  1. 1.School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
    2.Qiyuan (Xi’an) Dae Young Environmental Protection Technology Co. , Ltd. , Xi’an 710018, Shaanxi, China
  • Received:2024-04-09 Revised:2024-06-24 Online:2025-05-07 Published:2025-04-25
  • Contact: SHI Jianwen

超低温氨气选择性脱硝催化剂的研究进展

宋坤莉1(), 肖雷2, 马丹丹1, 肖朋2, 杨莎莎2, 石建稳1()   

  1. 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
  • 通讯作者: 石建稳
  • 作者简介:宋坤莉(1994—),女,博士研究生,研究方向为燃煤电厂中的催化过程及催化技术。E-mail:13453884488@163.com
  • 基金资助:
    国家自然科学基金(21972110)

Abstract:

This review examines the current development in selective catalytic reduction (SCR) for denitrification (de-NO x ), and introduces the unique advantages of ultra-low temperature SCR in terms of energy savings, cost reduction, mitigation of dust and anti SO2 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-NO x activity, poor H2O tolerance, and insufficient stability. Additionally, this review outlines the research progress in H2O and SO2 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 SO2 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.

Key words: ultra-low temperature, environment, catalysis, denitrification, oxidation

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。

关键词: 超低温, 环境, 催化剂, 脱硝, 氧化

CLC Number: 

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