Modification of Zeolite Y Impregnated by Preformed MFI Alumino-silicate Precursors and Catalytic Properties in Benzene Alkylation with Isopropanol

Abstract

Abstract: A novel method for increasing the conversion and optimizing the product distribution over the catalyst of zeolite Y modified by MFI aluminosilicate precursors in the reaction of benzene alkylation with isopropanol is reported. The catalyst(PASP MFI/Y) is prepared from the impregnation of zeolite Y with preformed MFI aluminosilicate nanoclusters. The characterization of temperature-programmed desorption of ammonia shows that the PASP MFI/Y exhibits a stronger acidity than Y zeolite does. The catalytic results show that the PASP MFI/Y exhibits a more excellent activity(conversion for isopropanol and toluene) and shape selectivity(p-and m-cymene) in the reaction than zeolite Y.

Key words: Alkylation, Zeolite, Preformed aluminosilicate precursors

CLC Number:

O643.3

TrendMD:

LIN Sen, YIN Cheng-Yang, WANG Li-Feng, JIANG Da-Zhen, XIAO Feng-Shou . Modification of Zeolite Y Impregnated by Preformed MFI Alumino-silicate Precursors and Catalytic Properties in Benzene Alkylation with Isopropanol[J]. Chem. J. Chinese Universities, 2005, 26(1): 152.

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Modification of Zeolite Y Impregnated by Preformed MFI Alumino-silicate Precursors and Catalytic Properties in Benzene Alkylation with Isopropanol

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