Plasma-catalytic Selective Reduction of NO with C_(2)H_(4)in the Presence of Excess Oxygen  

作　　者：QiSUN AiMinZHU XueFengYANG JinHaiNIU YongXU ZhiMinSONG JingLIU 

机构地区：[1]LaboratoryofPlasmaPhysicalChemistry,DalianUniversityofTechnology,Dalian116024 [2]LaboratoryofPlasmaPhysicalChemistry,DalianUniversityofTechnology,Dalian116024／／StateKeyLaboratoryofMaterialModificationbyIon,ElectronandLaserBeams,DalianUniversityofTechnology,Dalian116024

出　　处：《Chinese Chemical Letters》2005年第6期839-842,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.20077005);the National High Technology Research and Development Program("863 Programm”)of China(Grant No.2002AA649140);the Provincial Grants of Science and Technology of Liaoning,China(No.20022112).

摘　　要：This paper reports observations of significant synergistic effects between dielectric barrier discharge (DBD) plasmas and Cu-ZSM-5 catalysts for C2H4 selective reduction of NOx at 250 °C in the presence of excess oxygen by using a one-stage plasma-over-catalyst (POC) reactor. With the reactant gas mixture of 530 ppm NO, 650 ppm C2H4, 5.8% O2 in N2 and GHSV = 12000 h-1, the pure catalytic, pure plasma-induced (discharges over fused silica pellets) and plasma- catalytic (in the POC reactor) NOx conversion are 39%, 1.5% and 79%, respectively. The in-situ optical emission spectra of the reactive systems imply some short-lived active species formed from plasma-induced and plasma-catalytic processes may be responsible to the observed synergistic effects in this one-stage POC system.

关 键 词：NOx removal selective catalytic reduction non-thermal plasma CuZSM-5 ETHENE optical emission spectroscopy. 

分 类 号：O623.121[理学—有机化学]