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Zeolites-catalyzed Alkylation of Isobutane with 2-butene: Influence of Acidic Properties

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The influence of acidity properties of zeolites on the alkylation of isobutane with 2-butene was studied using ultrastable Y (USY) zeolites. Most zeolites possessed almost comparable hydrogen transfer activity except for USY-30, which has the lowest acid site density. On the other hand, the strength of acid sites increased with degrees of dealumination. During the alkylation, a maximum in catalytic activity for certain Si/Al ratios were observed. This behavior is believed to be a result of a balanced level of acidic properties between the concentration and strength of Brønsted acid sites. It can prohibit the formation of heavy carbonaceous materials that deactivate the zeolites.

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Authors and Affiliations

  1. Environment and Process Technology Division, Korea Institute of Science and Technology, Seoul, 130–791, South Korea

    Kye Sang Yoo

  2. Department of Chemical & Materials Engineering, University of Cincinnati, Cincinnati, 45221, OH, USA

    Panagiotis G. Smirniotis

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  1. Kye Sang Yoo
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  2. Panagiotis G. Smirniotis
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Correspondence to Kye Sang Yoo.

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Yoo, K.S., Smirniotis, P.G. Zeolites-catalyzed Alkylation of Isobutane with 2-butene: Influence of Acidic Properties. Catal Lett 103, 249–255 (2005). https://doi.org/10.1007/s10562-005-7161-7

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