화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.36, 271-278, April, 2016
DOI10.1016/j.jiec.2016.02.013  Export Citation
Supported metal sulfates on Ce-TiOx as catalysts for NH3?SCR of NO: High resistances to SO2 and potassium
Xuesen Du1, 2, †, Xiangmin Wang2, Yanrong Chen1, 2, Xiang Gao3, and Li Zhang1, 2
  • 1Key Laboratory of Low-grade Energy Utilization Technologies & Systems of Ministry of Education of China, College of Power Engineering, Chongqing University, Chongqing 400044, China
  • 2Institute of Energy and Environment of Chongqing University, Chongqing 400044, China
  • 3State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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Cu and Fe sulfates were loaded on a Ce-Ti mixed oxide and tested for the reduction of NO with NH3. The loading of metal sulfate greatly enhances the resistance to SO2 of the Ce-Ti oxide. The prepared catalysts also show better performances after doping with K2O if compared to the V-W-TiOx catalyst. Surface characterizations reveal that better resistance to potassium oxide can be attributed to better acidity and reducibility. The catalyst with iron sulfate supported on Ce-TiOx was found to be a promising catalyst for NO removal in the flue gas with high alkali metal content.
Keywords:Selective catalytic reduction;Nitric oxide;Ceria-titania mixed oxide;NH3;Potassium
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