现代化工

现代化工 ›› 2021, Vol. 41 ›› Issue (11) : 58-62. DOI: 10.16606/j.cnki.issn 0253-4320.2021.11.013

技术进展

NH₃-SCR脱硝催化剂的中毒及其抗毒策略

杜凯敏, 秦刚华, 祁志福, 刘春红, 蒋楠, 胡达清

作者信息 +

Poisoning of NH₃-SCR denitrification catalyst and resistance strategy

DU Kai-min, QIN Gang-hua, QI Zhi-fu, LIU Chun-hong, JIANG Nan, HU Da-qing

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摘要

着重介绍了脱硝催化剂常见的中毒机理及特点（SO₂中毒、H₂O中毒、碱金属中毒、HCl中毒、HC/P中毒）、对应抗毒策略及催化剂设计，并做出评价，同时指出存在的问题及未来发展趋势。

Abstract

The mechanism and characteristics of common poisoning modes for denitrification catalyst are emphatically introduced, including SO₂ poisoning, H₂O poisoning, alkali metal poisoning, HCl poisoning and HC/P poisoning.Corresponding poisoning-resistance strategies, and the design and evaluation of catalysts are expounded.The existing problems in NH₃-SCR denitrification catalyst and the prospect are proposed.