期刊文献+

MFI分子筛前驱体对Y型沸石分子筛表面的修饰及其催化性质

Modification of Zeolite Y Impregnated by Preformed MFI Alumino- silicate Precursors and Catalytic Properties in Benzene Alkylation with Isopropanol
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摘要 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. 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.
出处 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2005年第1期152-154,共3页 Chemical Journal of Chinese Universities
基金 国家自然科学基金 (批准号 :2 0 173 0 2 2 )资助
关键词 烷基化 分子筛 沸石分子筛前驱体 Alkylation Zeolite Preformed aluminosilicate precursors
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参考文献10

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