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Effect of P Content on the Catalytic Performance of P-modified HZSM-5 Catalysts in Dehydration of Ethanol to Ethylene

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Abstract

A series of phosphorus (P) modified HZSM-5 catalysts were prepared and characterized with various techniques. These catalysts were used in dehydration of ethanol to ethylene at different temperatures. It was found that not all the P-modified catalysts favor this reaction at high temperatures. Over the catalyst with 3.4 wt% P, the main product is ethylene at 573–713 K, due to the presence of weak acid sites after P modification. When the P loading is below 3.4 wt%, ethylene and higher hydrocarbons are observed at high temperatures. As P content is above 3.4 wt%, higher reaction temperature is necessary for ethanol dehydration to ethylene.

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Authors and Affiliations

  1. School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People’s Republic of China

    Dongsheng Zhang, Rijie Wang & Xiaoxia Yang

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  1. Dongsheng Zhang
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  2. Rijie Wang
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  3. Xiaoxia Yang
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Correspondence to Xiaoxia Yang.

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Zhang, D., Wang, R. & Yang, X. Effect of P Content on the Catalytic Performance of P-modified HZSM-5 Catalysts in Dehydration of Ethanol to Ethylene. Catal Lett 124, 384–391 (2008). https://doi.org/10.1007/s10562-008-9481-x

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  • DOI: https://doi.org/10.1007/s10562-008-9481-x

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