Preparation and catalytic performance of rare earth composite molecular sieve catalyst

科研成果: 期刊稿件文章同行评审

9 引用 (Scopus)

摘要

Using impregnation method, the catalysts, Re-Cu-K/Y and Re-Cu-K/γ-Al2O3, used for the oxidation of HCl were prepared by loading the rare earth elements, Ce, Pr and Nd, on the Y-type molecular sieve and γ-Al2O3, respectively. The catalysts prepared were characterized by XRD, ESEM and BET, and their catalytic activities for oxidation of HCL were measured too. The XRD pattern of catalyst Re-Cu-K/γ-Al2O3 shows that there are characteristic diffraction peaks of rare earth oxide and potassium chloride in it, and the detected rare earth diffraction signals mainly are the signals of the CeO2 crystal phase. While in the XRD pattern of catalyst Re-Cu-K/Y, except the diffraction peaks of the Y-type molecular sieve supporter, no any other diffraction signal of relative crystal phase is detected. The ESEM images show that the structure of Y-type molecular sieve supporter doesn't be destroyed by loading the Cu, K and rare earth elements on it. It was found that the catalyst Re-Cu-K/Y exhibits good catalytic activity for oxidation of HCl, and using it with the V (HCl)/V (O2) of 1.5 and at 648 K, the convertion of HCl can reach 85%.

源语言英语
页(从-至)118-121
页数4
期刊Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities
22
1
出版状态已出版 - 2月 2008

指纹

探究 'Preparation and catalytic performance of rare earth composite molecular sieve catalyst' 的科研主题。它们共同构成独一无二的指纹。

引用此