Continuous Hydrogenation of Ethyl Levulinate to γ-Valerolactone over Cu-Zn/ZrO2 Catalyst with Alumina Binder
2017
Kong, Xiangjin | Wu, Shuxiang | Jin, Yuzhou | Liu, Liying | Liu, Junhai
Cu-Zn/ZrO₂ catalyst with an alumina binder was built for catalytic hydrogenation of ethyl levulinate to γ-valerolactone. N₂ adsorption–desorption, X-ray powder diffraction, Fourier transform infrared spectroscopy, NH₃ temperature-programmed desorption, H₂ temperature-programmed reduction, and N₂O decomposition were used to characterize the catalysts. The obtained results exhibited that porosity and acidity of the catalysts were strongly influenced by the binder; the most outstanding catalytic performance (96.4% ethyl levulinate conversion and 94.0% selectivity for γ-valerolactone) was observed on the catalyst with 20 wt % alumina binder for 30 h of time on stream. The good activity of this catalyst was due to its relatively good Cu species dispersion and proper acidity.
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