A review on zeolite catalyst for deNOx performance in ammonia-selective catalytic reduction

被引：25

作者：

Kumar, M. Sunil ^{[1
]}

Alphin, M. S. ^{[1
]}

Kumar, P. Senthil ^{[2
,3
]}

Raja, S. ^{[4
]}

机构：

[1] Sri Sivasubramaniya Nadar Coll Engn, Dept Mech Engn, Kalavakkam 603110, Tamil Nadu, India

[2] Sri Sivasubramaniya Nadar Coll Engn, Dept Chem Engn, Kalavakkam 603110, Tamil Nadu, India

[3] Sri Sivasubramaniya Nadar Coll Engn, Ctr Excellence Water Res CEWAR, Kalavakkam 603110, Tamil Nadu, India

[4] Indian Inst Technol, Dept Mech Engn, Madras 600036, India

来源：

FUEL | 2023年 / 334卷

关键词：

Selective catalytic reduction; NOx emission; Zeolite catalyst; Metal substitute; Deactivation mechanism; TEMPERATURE HYDROTHERMAL STABILITY; CU-ZEOLITE; CU-SAPO-34; CATALYST; NOX REDUCTION; EMISSION CHARACTERISTICS; CU/SAPO-34; CATALYSTS; NH3-SCR CATALYSTS; SI/AL RATIO; SCR; CU-SSZ-13;

D O I：

10.1016/j.fuel.2022.126828

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Internal combustion (IC) engines rely heavily on NOx emissions. Various studies are being conducted to lower NOx emission in order to achieve the BS-VI norms. This review examines a zeolite catalyst using metal sub-stitutes, primarily copper Cu, and iron Fe, and compares it to a commercial vanadium catalyst in terms of deNOx efficiency and deactivation process. Based on the size of pores of zeolite, it has been classified into large size, medium size and small size zeolites. At low temperature, small pore zeolite with Cu substituted has better deNOx efficiency with higher thermal stability with high-temperature reaction conditions. Whereas, Cu-SSZ-13 & Cu-SAPO-34 exhibits wider temperature window and also exhibits good thermal stability even below 350 degrees C. Si/ Al ratio (SAR) plays a vital role in deNOx efficiency.

引用

页数：9

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