脱硝催化剂的硫中毒机理研究  

Study on sulfur poisoning mechanism of denitration catalyst

作　　者：杨旭 陈红萍 齐雪 

机构地区：[1]华北理工大学化学工程学院河北省环境光电催化材料重点实验室,河北唐山063009 [2]河北省煤化工工程技术研究中心,河北唐山063009

出　　处：《现代化工》2018年第2期20-24,共5页Modern Chemical Industry

基　　金：河北省科学教育厅项目(ZD2015116);河北省自然科学基金钢铁联合研究基金(B2017209111)

摘　　要：从硫中毒机理、载体选择和制备方法对催化剂抗硫性的影响出发,对近年来国内外抗硫脱硝催化剂的研究进行综述,得出硫酸盐和金属硫酸化等是脱硝催化剂硫中毒的主要原因,高抗硫性脱硝催化剂具有较多酸位和合适孔径等特点。最后对抗硫脱硝催化剂的未来发展进行了展望。The research on the anti-sulfur denitration catalysts at home and abroad in recent years is reviewed from the impacts of sulfur poisoning mechanism,selection of carrier and preparation methods on the anti-sulfur performances of denitration catalysts. It is concluded that sulfates and metal sulfation are the main reasons causing denitration catalysts to be poisoned. The desulfurization catalysts with high anti-sulfur performances have typically characteristics such as more acid sites,suitable pore size and so on. Finally,the future development of anti-sulfur denitration catalyst is prospected.

关 键 词：氮氧化物 SO2 硫中毒 SCR脱硝催化剂 

分 类 号：TQ111.2[化学工程—无机化工]