Abstract
Spherical AlPO4 supported WO3 catalysts were synthesized and characterized by XRD, N2 sorption isotherm, SEM, TEM and NH3-TPD, and used as a catalyst for the production of Euro 95 standard gasoline fuel additives from biomass-derived furfural via reductive etherification. Compared with the AlPO4 catalyst, the surface acidity increased after the impregnation of tungsten oxide. The activity and stability of the catalysts also improved with the impregnation of tungsten oxide on AlPO4. However, the existing catalytic system cannot provide high conversion to furfural and selectivity to ether due to the formation of side reactions. To optimize the reaction conditions, the effect of temperature, catalyst amount, furfural/isopropanol molar ratio, and choice of hydrogen donor were studied. Under these optimized conditions, a high conversion of furfural (92%) and a yield of isopropyl furfuryl ether (IPFE) (83%) were obtained with the byproducts of furfuryl alcohol and acetal. The WO3/AlPO4 catalyst also achieved a high yield of ether with various aldehydes and alcohols via reductive etherification.
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Acknowledgements
One of the authors, S. Manimaran gratefully acknowledges the Anna Centenary Research Fellowship (ACRF) funded by Anna University, Chennai for the financial support to carry out this work. The authors are thankful to the DST-FIST sponsored Department of Chemistry, Anna University for providing the laboratory and instrumentation facilities. The authors are thankful to the Crystal Growth Centre, Anna University for providing the instrumentation facilities. The authors are thankful to the Material Analysis and Research Centre, Bengaluru, for providing the instrumentation facilities.
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SM: Investigation, Methodology, Validation, Formal analysis, Software, Writing—original draft. AP: Conceptualization, Supervision, Resources, Methodology.
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Manimaran, S., Pandurangan, A. A spherical AlPO4 supported WO3 catalyst for reductive etherification of furfural to Euro 95 standard gasoline fuel additives. J Porous Mater (2024). https://doi.org/10.1007/s10934-024-01599-4
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DOI: https://doi.org/10.1007/s10934-024-01599-4