Chemical poison and regeneration of SCR catalysts for NOx removal from stationary sources

被引：117
作者：
Li, Junhua [1 ]
Peng, Yue [1 ,2 ,3 ]
Chang, Huazhen [4 ]
Li, Xiang [1 ]
Crittenden, John C. [2 ,3 ]
Hao, Jiming [1 ]
机构：
[1] Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China
[2] Georgia Inst Technol, Sch Civil & Environm Engn, 800 West Peachtree St,Suite 400 F-H, Atlanta, GA 30332 USA
[3] Georgia Inst Technol, Brook Byers Inst Sustainable Syst, 800 West Peachtree St,Suite 400 F-H, Atlanta, GA 30332 USA
[4] Renmin Univ China, Sch Environm & Nat Resource, Beijing 100872, Peoples R China
来源：
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING | 2016年 / 10卷 / 03期
基金：
中国国家自然科学基金;
关键词：
flue gas; DeNO(x); SCR catalyst; poison and regeneration; LOW-TEMPERATURE SCR; MIXED-OXIDE CATALYST; V2O5/SULFATED TIO2 CATALYST; VANADIA-TITANIA CATALYSTS; NITRIC-OXIDE; REDUCTION SCR; V2O5/TIO2; CATALYST; ALKALI-METALS; FLUE-GAS; DEACTIVATION MECHANISM;
D O I：
10.1007/s11783-016-0832-3
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Selective catalytic reduction (SCR) of NOx with NH3 is an effective technique to remove NOx from stationary sources, such as coal-fired power plant and industrial boilers. Some of elements in the fly ash deactivate the catalyst due to strong chemisorptions on the active sites. The poisons may act by simply blocking active sites or alter the adsorption behaviors of reactants and products by an electronic interaction. This review is mainly focused on the chemical poisoning on V2O5-based catalysts, environmental-benign catalysts and low temperature catalysts. Several common poisons including alkali/alkaline earth metals, SO2 and heavy metals etc. are referred and their poisoning mechanisms on catalysts are discussed. The regeneration methods of poisoned catalysts and the development of poison-resistance catalysts are also compared and analyzed. Finally, future research directions in developing poisoning resistance catalysts and facile efficient regeneration methods for SCR catalysts are proposed.
引用
收藏
页码：413 / 427
页数：15
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