Catalysis Communications p. 79 - 82 (2017)
Update date:2022-08-11
Topics:
Yoshida, Rei
Sun, Daolai
Yamada, Yasuhiro
Sato, Satoshi
Hutchings, Graham J.
Vapor-phase hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) was performed over SiO2-supported Cu-Ni bimetallic catalysts with different Cu/Ni weight ratios under ambient H2 pressure. Characterization of the catalysts was carried out using powder X-ray diffraction, temperature-programmed reduction and thermogravimetric analysis. In contrast to the monometallic catalysts i.e. Ni/SiO2 and Cu/SiO2, the Cu-Ni/SiO2 bimetallic catalyst with a Cu/Ni weight ratio of 6/14 exhibits an excellent catalytic activity, and gave a GVL yield higher than 99% with a productivity of 1.64kgGVLkgcat.?1h?1 at 250°C and at a high WHSV of 1.65h?1 for 50h.
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