Efficient vapor‐phase selective hydrogenolysis of bio‐levulinic acid to γ‐valerolactone using cu supported on hydrotalcite catalysts
Mitta, Harisekhar; Seelam, Prem Kumar; Chary, K. V. Raghava; Mutyala, Suresh; Boddula, Rajender; Inamuddin; Asiri, Abdullah M. (2018-07-11)
Mitta, H., Seelam, P. K., Chary, K. V. R., Mutyala, S., Boddula, R., Inamuddin, & Asiri, A. M. (2018). Efficient Vapor-Phase Selective Hydrogenolysis of Bio-Levulinic Acid to γ-Valerolactone Using Cu Supported on Hydrotalcite Catalysts. Global Challenges, 2(12), 1800028. https://doi.org/10.1002/gch2.201800028
© 2018 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
https://creativecommons.org/licenses/by/4.0/
https://urn.fi/URN:NBN:fi-fe2019070322658
Tiivistelmä
Abstract
In this work, Cu nanoparticles (Cu NPs, 2‐20 nm) supported on Hydrotalcite catalysts exhibit enhanced selectivity for γ‐valerolactone (GVL) during hydrogenolysis of levulinic acid (LA). At 260 °C, over 3 wt% Cu achieved 87.5% of LA conversion with a maximum GVL selectivity (95%). In contrast, LA hydrogenolysis over 3Cu/Hydrotalcite catalyst is highly active and stable toward the production of GVL due to balanced acido‐basicity and higher Cu dispersion with ultrasmall particle sizes, which are investigated through the temperature programmed desorption (TPD) of ammonia, N₂O titration, and transmission electron microscopy (TEM) analysis. Hydrotalcite in combination with inexpensive Cu catalyst is found to be an efficient and environmentally benign for LA hydrogenolysis.
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