A comprehensive review on selective catalytic reduction catalysts for NOx emission abatement from municipal solid waste incinerators
A comprehensive review on selective catalytic reduction catalysts for NOx emission abatement from municipal solid waste incinerators
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城市固体垃圾焚烧炉氮氧化物减排选择性催化还原催化剂的综合综述
DOI：
10.1002/ep.12328
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发表时间：
2016-07
影响因子：
2.8
通讯作者：
Wang Qiang
中科院分区：
文献类型：
--
作者：
Zhang Yili;Umar Ahmad;Huang Zhanggen;Wang Qiang
垃圾焚烧是城市生活垃圾的一种有效处理方法，因其具有良好的减量化效果而受到越来越多的关注。然而，焚烧过程的一个大问题是释放出许多有害污染物。氮氧化物（NOx）是各种燃烧过程排放的主要污染物之一，对环境和人体健康都有很大的危害。选择性催化还原（SCR）技术具有效率高、选择性好、成本低等优点，是降低城市生活垃圾焚烧炉烟气中NOx排放的有效方法。由于城市生活垃圾焚烧炉的气体成分比燃煤电厂的气体成分更复杂，因此人们对制造更耐用的SCR催化剂给予了大量关注。本文对近年来用于城市生活垃圾焚烧炉烟气脱硝的SCR催化剂的研究进展进行了综述。讨论了HCl、SO2、碱金属、磷、砷、铅等对NOx转化为N2的影响。此外，还对城市生活垃圾焚烧炉烟气脱硝的机理和动力学进行了探讨。我们希望这方面的贡献可以阐明新的催化剂和/或技术的发展，从城市生活垃圾焚烧炉烟气。© 2016美国化学工程师学会环境规划，35：1061-1069，2016
Incineration is considered to be an effective disposal method for municipal solid wastes (MSW), which is attracting increasing attention due to its great performance in waste reduction. However, one big problem for incineration process is the release of a number of harmful pollutants. Nitrogen oxide (NOx) is one of the major pollutants in the exhaust of various combustion processes because it is harmful to both environment and human health. For reducing NOx emission from MSW incinerators flue gases, selective catalytic reduction (SCR) technology has been widely investigated because of its high efficiency, good selectivity, and low cost. Since the gas composition from MSW incinerators is more complex than that from coal‐fired power plants, lots of attention has been paid to making more robust SCR catalysts. The aim of this article is to provide a critical and timely review on the recent progresses of SCR catalysts used for MSW incinerator flue gases. We also discussed the influence of HCl, SO2, alkali metal, phosphorus, arsenic, lead, and so forth on the conversion of NOx to N2. Moreover, the mechanism and kinetics involved in the SCR of NOx for MSW incinerator flue gases were also discussed. We hope this contribution could shed light on the development of novel catalysts and/or technologies from MSW incinerators flue gases. © 2016 American Institute of Chemical Engineers Environ Prog, 35: 1061–1069, 2016
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