基于耐高温非织造过滤材料的烟气污染物催化脱附技术研究进展

Research progress on catalytic removal of flue gas pollutants based on high-temperature-resistant non-woven filter materials

  • 摘要: 耐高温非织造材料具有卓越的力学性能和化学稳定性,其与催化脱附技术结合制备出的催化滤料在处理工业高温烟尘中的污染物上发挥着关键作用。本文对耐高温非织造过滤材料在烟气污染物催化脱附研究进展进行了综述,介绍了催化滤料的在不同基材选择和制备方法上的优势与不足,阐明了以氮氧化物(NOx)、二噁英和汞作为典型污染物的脱附机制,简述了金属组分和催化剂结构对催化滤料性能的影响,最后对催化滤料的发展方向进行了展望。

     

    Abstract: Due to the excellent mechanical properties and chemical stability, high temperature resistant nonwoven materials are combined with catalytic desorption technology to prepare catalytic filter media, and play a crucial role in treating pollutants in industrial high-temperature smoke and dust. The research progress of high temperature resistant nonwoven filtration materials in removing flue gas pollutants is systematically reviewed in this work. The advantages and disadvantages of catalytic filter materials are introduced concerning different substrate selections and preparation methods. The desorption mechanisms are clarified for typical pollutants including nitrogen oxides (NOx), dioxins, and mercury. The impact of metal components and catalyst structures on the performance of catalytic filters is briefly outlined. Finally, the potential development directions for catalytic filter materials are prospected.

     

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