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首页> 外文期刊>RSC Advances >Recent advances in supported molecular sieve catalysts with wide temperature range for selective catalytic reduction of NOX with C3H6
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Recent advances in supported molecular sieve catalysts with wide temperature range for selective catalytic reduction of NOX with C3H6

机译：具有宽温度范围的支持分子筛催化剂的最新进展，用于用C3H6选择催化还原NOx

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摘要

NOX is a major atmospheric pollutant that is emanated by motor vehicles, thermal power plants, and industrial boilers. Therefore, the removal of NOX is a research hotspot in the exhaust gas treatment field. Numerous methods have been used to eliminate NOX: the selective catalytic reduction of NOX using C3H6 as the reducing agent (C3H6-SCR) is an effective method to remove NOX. The key issue in NOX removal in C3H6-SCR is to obtain catalysts with low-temperature activity and wide operating temperatures. Till date, different supported wide-temperature-active molecular sieve catalysts have been prepared and used in C3H6-SCR reactions. Studies have shown that the catalytic performance of supported catalysts is related not only to the active component but also to the structural and textural parameters of the molecular sieve supports. This review summarizes the structural and textural characteristics, catalytic properties, and catalytic mechanism of molecular sieve catalysts with different pore structures for C3H6-SCR reactions. The design strategies of supported molecular sieve catalysts are suggested. The goal of this review is to highlight (1) the structural and textural characteristics and low-temperature catalytic performance of different supported molecular sieve catalysts; (2) the relationship between wide-temperature window and loaded active components, as well as carriers of the supported molecular sieve catalysts; and (3) design strategies and development prospects of supported molecular sieve catalysts with low-temperature activity and wide-temperature operating range for C3H6-SCR reactions.
机译：NOx是一种主要的大气污染物，由机动车，火电厂和工业锅炉发出。因此，去除NOx是废气处理领域的研究热点。已经使用许多方法来消除NOx：使用C3H6作为还原剂（C3H6-SCR）的NOx选择性催化还原是除去NOx的有效方法。 C3H6-SCR中NOx去除的关键问题是获得具有低温活性和宽工作温度的催化剂。迄今为止，已经制备了不同的支持的宽温度活性分子筛催化剂并用于C3H6-SCR反应。研究表明，负载型催化剂的催化性能不仅与活性成分有关，而且还与分子筛载体的结构和纹理参数有关。本综述总结了具有不同孔隙结构的分子筛催化剂的结构和纹理特征，催化性能和催化机理，用于C3H6-SCR反应。提出了支持的分子筛催化剂的设计策略。本综述的目的是突出（1）不同负载的分子筛催化剂的结构和纹理特征和低温催化性能; （2）宽温度窗口与负载活性组分之间的关​​系，以及负载的分子筛催化剂的载体; （3）具有低温活性的支持分子筛催化剂的设计策略和开发前景，C3H6-SCR反应的宽温度工作范围。

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  • 来源
    《RSC Advances》 |2019年第2期|共15页
  • 作者

    Xu Junqiang; Wang Honglin; Guo Fang; Zhang Chuan; Xie Jiaqing;

  • 作者单位

    Chongqing Univ Technol Sch Chem &

    Chem Engn Chongqing 400054 Peoples R China;

    Chongqing Univ Technol Sch Chem &

    Chem Engn Chongqing 400054 Peoples R China;

    Chongqing Univ Technol Sch Chem &

    Chem Engn Chongqing 400054 Peoples R China;

    Chongqing Univ Technol Sch Chem &

    Chem Engn Chongqing 400054 Peoples R China;

    Sichuan Coll Technol Sch Chem &

    Environm Engn Zigong 643000 Peoples R China;

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  • 正文语种 eng
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