燃料化学学报2017，Vol.45Issue(2)：220-226,7.
载体对铜基催化剂NH3-SCR低温脱硝性能的影响
Effect of carrier on the performance of copper based catalyst for selective catalytic reduction of NO with NH3 at low temperature
摘要
Abstract
The catalysts of supported copper oxide were prepared by impregnation method, which were characterized by XRD, TG-MS, XPS, NO-TPD, NH3-TPD and H2-TPR and the effect of carrier on the performance of catalysts for the selective catalytic reduction of NO with NH3 at low-temperature in the presence of oxygen was investigated. The results show that the copper species exist in the form of CuO and Cu2 O on carriers. The dispersion and oxidation state of copper species, the acidity and redox ability of the catalysts and the performance of adsorption/desorption are affected by the carriers. The Cu/HZSM-5 catalyst with highly dispersed copper speicies has excellent redox properties, suitable acidity and acid capacity, and good adsorption/desorption performance for reactants, which shows a good catalytic activity in the NH3-SCR denitrification reaction. The reaction temperature is lower, T50 and T90 is 137 and 165℃, respectively, and the active window temperature is wide. The temperature range for the NO conversion of over 90% is 165-358℃.关键词
载体/铜氧化物/NH3-SCR/低温脱硝Key words
carrier/copper oxide/NH3-SCR/low-temperature denitrification分类
化学化工引用本文复制引用
张相俊,刘晓刚,李清雍,李岩,魏波,王虹,李翠清,宋永吉..载体对铜基催化剂NH3-SCR低温脱硝性能的影响[J].燃料化学学报,2017,45(2):220-226,7.基金项目
The project was supported by the National Natural Science Foundation of China (21343009,21673290), the State Key Laboratory of Heavy Oil Processing (SKLHOP201501) and the National College Students Innovation and Entrepreneurship Training Program (2016J00073).国家自然科学基金(21343009,21673290),重质油国家重点实验室开放基金(SKLHOP201501)和国家级大学生创新创业训练计划项目(2016J00073)资助 （21343009,21673290）
