催化学报 ›› 2010, Vol. 31 ›› Issue (8): 938-942.DOI: 10.1016/S1872-2067(09)60093-0

• 研究快讯 • 上一篇    下一篇

用于 NH3 选择催化还原 NO 反应的新型 Ce-P-O 催化剂

李飞 1,2, 肖德海 1,3, 张一波 1,2, 王德强 1,2, 潘喜强 1,2, 杨向光 1,3   

  1. 1中国科学院长春应用化学研究所稀土资源利用国家重点实验室, 吉林长春 130022 2中国科学院研究生院, 北京 100049 3中国科学院长春应用化学研究所绿色化学与过程实验室, 吉林长春 130022
  • 收稿日期:2010-03-15 出版日期:2010-08-30 发布日期:2013-12-26
  • 通讯作者: 杨向光

A Novel Ce-P-O Catalyst for Selective Catalytic Reduction of NO with NH3

LI Fei1,2, XIAO Dehai1,3, ZHANG Yibo1,2, WANG Deqiang1,2, PAN Xiqiang1,2, YANG Xiangguang1,3,*   

  1. 1State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3Laboratory of Green Chemistry and Process, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
  • Received:2010-03-15 Online:2010-08-30 Published:2013-12-26

摘要: 报道了一种新型的可用于氨选择催化还原氮氧化物的 Ce-P-O 催化剂. 在空速为 20 000 h?1, 较宽的温度范围内经 500 oC 焙烧的 Ce-P-O 催化剂上表现出了较高的 NO 转化率 (可达到 90% 以上). 与 V-W-Ti 催化剂相比, 该催化剂具有一定的耐水蒸气和 SO2 能力以及较好的抗碱中毒性能.

关键词: 氮氧化物, 选择催化还原, 氨, 铈, 磷酸盐

Abstract: A novel Ce-P-O catalyst for the selective catalytic reduction of NO with NH3 was synthesized. The Ce-P-O catalyst was calcined at 500 °C and showed higher deNOx activity (NO conversion > 90%) within the temperature range of 300–500 °C and at GHSV = 20 000 h?1. The NO conversion was not significantly affected by the presence of H2O and SO2. By comparison with the commercial V-W-Ti catalyst, the Ce-P-O catalyst exhibited better resistance to deactivation due to K2O poisoning.

Key words: nitrogen oxide, selective catalytic reduction, ammonia, cerium, phosphate