以V/REY分子筛型催化剂为研究对象,通过掺杂不同的金属助剂X(X=Fe、Ce、Cu、Co、V和Cr等),制备了XV/REY催化剂,比较X-V/REY催化剂的脱硝效率,发现Cu-V/REY催化剂有较好的低温活性,并通过SEM、H2-TPR、NH3-TPD对催化剂的性能进行表征,系统的考察Cu-V/REY催化剂的性能,证明Cu掺杂量能较好的提高催化剂的表面酸性和还原性,最后考察了SO2和H2O对催化剂的影响,证明170℃时,Cu-V/REY催化剂有较好的抗水抗硫性能。 Taking V / REY zeolite catalyst as the research object, XV / REY catalyst was prepared by doping different metal promoters X (X = Fe, Ce, Cu, Co, V and Cr, etc.) The results show that the Cu-V / REY catalyst has good low-temperature activity. The performance of the catalyst was characterized by SEM, H2-TPR and NH3-TPD. The Cu-V / The effects of SO2 and H2O on the catalysts were investigated. The results show that Cu-V / REY catalyst has good water and sulfur resistance at 170 ℃.