化工进展2018，Vol.37Issue(1)：105-111,7.DOI:10.16085/j.issn.1000-6613.2017-0759
锰钛系低温选择性催化还原催化剂的抗SO2和抗H2O性能研究进展
Research progress on the SO2and H2O resistance of Mn-Ti catalysts for low-temperature SCR
摘要
Abstract
Low temperature SCR denitration technology has the advantages of low cost,low energy consumption and convenient layout. The reaction temperature of the catalysts is low,which is suitable for small and medium-sized boilers,therefore it has attracted more and more researchers' attentions. Manganese-titanium based catalysts have become a hotspot in the research of low-temperature SCR catalysts due to their excellent catalytic activity. However,the poor sulfur and water resistance of the catalysts limits their practical application. This study mainly introduces the symptoms and mechanism of SO2and H2O poisoning of manganese-titanium catalysts for low temperature SCR. The research progress of doping transition metal elements and modification of the carrier in the aspect of sulfur resistance is mainly discussed. The effects of doping Ce,Co,Fe and Ho,as well as the acid modification of catalysts and compound carrier are introduced in detail. In addition,the recent situation of other modification methods of manganese-titanium catalysts are briefly introduced. Finally,the limitations of the present methods of the sulfur and water resistance for SCR catalysts are summarized,and we point out that the future focus of this kind of catalysts is to further improve their anti-poisoning ability.关键词
催化剂/选择性催化还原/脱硝/低温/抗SO2和抗H2O性能Key words
catalysts/selective catalytic reduction(SCR)/denitration/low temperature/resistance to SO2and H2O分类
资源环境引用本文复制引用
景有志,杨丽,朱淑维,舒新前..锰钛系低温选择性催化还原催化剂的抗SO2和抗H2O性能研究进展[J].化工进展,2018,37(1):105-111,7.基金项目
陕西省科技攻关计划项目(2016GY-147). （2016GY-147）
