Simultaneous removal of 1,2-dichlorobenzene and furan over Mn-Ce-Fe oxide catalyst:Catalytic activity and product analysis  

作　　者：Juan Qiu Minghui Tang Yaqi Peng Xuanhao Guo Shengyong Lu Jianhua Yan 

机构地区：[1]Taizhou Institute of Zhejiang University,Taizhou 318000,China [2]State Key Laboratory for Clean Energy Utilization,Institute for Thermal Power Engineering,Zhejiang University,Hangzhou 310027,China

出　　处：《Journal of Rare Earths》2024年第5期972-979,I0006,共9页稀土学报（英文版）

基　　金：Project supported by the Zhejiang Provincial Natural Science Foundation of China(LQ23E060002);the National Natural Science Foundation of China(51976192)。

摘　　要：The Mn-Ce-Fe mixed oxide(MCFe)was prepared by co-precipitation and the catalytic performance was tested by using 1,2-dichlorobenzene(1,2-DCB)and furan as model molecules of PCDD/F.The effect of O_(2)concentration,SO_(2) and NO on the catalytic activity was studied.At 270℃,the MCFe oxide catalyst presents significant simultaneous removal efficiency of 75.25%and 100%for 1,2-DCB and furan,respectively.Brunauer-Emmett-Teller(BET)method(BET),X-ray diffraction(XRD),scanning electron microscopy(SEM),X-ray photoelectron spectroscopy(XPS),Fourier transform infrared spectroscopy(FTIR),H_2-temperature programmed reduction(H_(2)-TPR),NH_(3)-temperature programmed desorption(NH_3-TPD)and O_(2)-TPD were used to characterize the catalysts before and after the reaction.Competition tests suggest that the oxidation behavior of furan occurred prior to that of 1,2-DCB.According to the intermediate products detected by gas chromatography-mass spectrometry(GC-MS),the by-products include chlorinated hydrocarbons,long-chain hydrocarbons,ketone,etc.Possible catalytic oxidation reaction paths are proposed.

关 键 词：1 2-dichlorobenzene FURAN Catalytic oxidation Product analysis Rare earths 

分 类 号：O64[理学—物理化学]