SCR脱除NO_x催化剂的研究进展

NO_x排放对人体和环境造成较大危害。SCR脱硝技术已成为减少NO_x排放的主流技术,在SCR脱硝技术中催化剂占有重要作用,开发出具有高活性、高稳定性和高寿命的催化剂至关重要。阐述了金属氧化物载体、分子筛载体以及碳载体催化剂的选择性催化还原法脱除NO_x的研究进展,对SCR脱硝催化剂研究领域存在的问题进行探讨,并展望了今后研究方向。

Research advance in SCR denitration catalyst

The emission of nitrogen oxides is harmful to human body and environment.At present,the selective catalytic reduction denitration technology has become a mainstream technology to reduce NOx emission.Catalyst in selective catalytic reduction denitration technology plays an important role.Therefore,the development of the catalyst with high active and stability,and long life is essential.The research status in the catalysts for selective catalytic reduction of NOx,including metal oxide supports,zeolite supports and carbon supports was described.Furthermore,some problems existing in the field of the SCR catalysts were discussed.The research prospects in future were outlined.