物理化学学报 >> 2001, Vol. 17 >> Issue (06): 481-483.doi: 10.3866/PKU.WHXB20010601

通讯    下一篇

高效一体化脱硫脱硝催化剂

张昭良;马骏;杨锡尧   

  1. 北京大学化学与分子工程学院 北京 100871
  • 收稿日期:2001-03-07 修回日期:2001-04-11 发布日期:2001-06-15
  • 通讯作者: 杨锡尧 E-mail:yangxy@pku.edu.cn

High Effective deSOx-deNOx Integrated Catalysts

Zhang Zhao-Liang;Ma Jun;Yang Xi-Yao   

  1. College of Chemistry and Molecular Engineering,Peking University,Beijing 100871
  • Received:2001-03-07 Revised:2001-04-11 Published:2001-06-15
  • Contact: Yang Xi-Yao E-mail:yangxy@pku.edu.cn

关键词: 脱硫, 脱硝, TiO2-CoS催化剂, TiO2-SnO2催化剂, 金红石

Abstract: TiO2,CoS and SnO2 respectively by itself is inactive for the reduction of SO2 or/and NO by CO;however,we discovered that both TiO2-CoS (1:1 mass ratio) and TiO2SnO2 (1:1 mass ratio) composite compounds are very active for such reactions,at 300-350 ℃,the conversion of SO2 to S,NO to N2 are over 90%,and the selectivity towards S or N2 are over 95%.These mean that there are synergism effects between TiO2 and CoS,TiO2 and SnO2.It was confirmed by XRD characteriza tion that TiO2 and CoO,TiO2 and SnO2 transform to rutile after calcinations at 500 ℃,however,individual TiO2(anatase) can only transform to rutile up to 900℃.Therefore ,it is suggested that the synergism effects must be related to these composites comcound which exist as rutile structure.The study of the reaction me chanism and model of active phase are underway.

Key words: deSOx, deNOx, TiO2-CoS catalysts, TiO2-SnO2 catalysts, Rutile