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The Effect of Water on Furan Conversion over ZSM-5

Authors

  • Christopher J. Gilbert,

    1. Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706 (USA)
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  • Juliana S. Espindola,

    1. Department of Chemical Engineering, Federal University of Rio Grande do Sul, Rua Luiz Englert s/n, 90040-040-Porto Alegre (Brazil)
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  • Prof. William C. Conner Jr.,

    1. Department of Chemical Engineering, University of Massachusetts-Amherst, 686 North Pleasant Street, Amherst, MA 01003 (USA)
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  • Prof. Jorge O. Trierweiler,

    1. Department of Chemical Engineering, Federal University of Rio Grande do Sul, Rua Luiz Englert s/n, 90040-040-Porto Alegre (Brazil)
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  • Prof. George W. Huber

    Corresponding author
    1. Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706 (USA)
    • Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706 (USA)

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Abstract

Catalytic fast pyrolysis is a method for converting lignocellulosic biomass into renewable aromatics and olefins. Water is a byproduct of this reaction and is also present in the biomass feed. As the water partial pressure is increased from 0 to 212 Torr (0 to 28 kPa), there is an increase in furan conversion from 43.8 to 84.8 % over ZSM-5. The CO2 and propylene yields also increase from 0.7 to 16.4 % and 2.9 to 44.9 %, respectively, as the water partial pressure increases. Water partial pressures in an industrial catalytic fast pyrolysis reactor should be within the range of water partial pressures used in this study. These results demonstrate that the presence of water promotes hydrolysis reactions in the gas-phase conversion of furanic pyrolysis vapors over zeolite catalysts.

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