Pd-Cu-Ti-PILC上丙烯选择催化还原NO的活性研究  

Pd-Cu-Ti-PILC for selective catalytic reduction of NO by propylene

作　　者：陆光[1] 马国辉[1] 曲振平[2] 李新勇[2] 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001 [2]大连理工大学化工与环境生命学部,辽宁大连116024

出　　处：《应用化工》2015年第11期2085-2087,共3页Applied Chemical Industry

基　　金：工业生态与环境工程教育部重点实验室资助(KLIEEE-13-03)

摘　　要：采用浸渍法制备Cu-Ti-PILC和Pd/Cu-Ti-PILC催化剂,结合X射线衍射谱(XRD)、程序升温还原(TPR)、NO程序升温脱附(NO-TPD)、丙烯选择催化还原NO(C3H6-SCR)研究Pd组分对Cu-Ti-PILC催化剂结构和催化还原NO能力的影响。XRD结果表明,Pd物种破坏了蒙脱土的层间排列但未改变Ti-PILC的层间距;TPR结果表明,Pd改变Cu-Ti-PILC催化剂表面上铜物种的还原性能;NO-TPD结果表明,Pd组分提高催化剂化学吸附NO;C3H6-SCR结果显示Pd物种能够提高Cu-Ti-PILC催化效果。Cu-Ti-PILC and Pd / Cu-Ti-PILC catalysts were prepared using ion exchange strategy and used for selective catalytic reduction（ SCR） of NO by propylene. The influences of Pd species on catalyst structure and catalytic performance were investigated by XRD,TPR,NO-TPD and C3H6-SCR. The results of XRD showed that Pd destroyed interlayer arrangement of clay and did not change the interlayer distance of Ti-PILC. TPR results showed that Pd changed the redox of Cu species. NO-TPD results showed that Pd increased the nitrate amount. The results of C3H6-SCR showed that Pd improved the N2 yield over Cu-TiPILC.

关 键 词：C3H6-SCR NO-TPD Pd/Cu-Ti-PILC 

分 类 号：TQ032.41[化学工程] TQ174.9