燃煤电厂SCR脱硝催化剂的失活与再生

Inactivation and Regeneration of SCR Denitration Catalyst in Coal-fired Power Plants

燃煤电厂对后期排放的氮氧化物采用的是选择性催化还原技术(SCR)进行处理,但是中国的SCR脱硝技术发展时间较短,大部分依靠引进国外技术。这就导致实际在应用的时候经济性较差,而且在使用催化剂时会失去活性,为了降低成本,催化剂会再次利用。文章针对燃煤电厂的SCR脱硝催化剂失活和再生的问题进行多角度、深层次研究。

Selective catalytic reduction technology(SCR)is used to treat nitrogen oxides discharged in the later stage,but the development time of SCR denitrif ication technology in China is short,and most of it depends on the introduction of foreign technology.This leads to poor economic performance in practical applications and deactivation of catalysts,which are reused to reduce costs.In this paper,the problems of deactivation and regeneration of SCR denitration catalyst in coal-f ired power plants are studied from multiple angles and in depth.