期刊
ENERGY
卷 58, 期 -, 页码 357-363出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2013.05.035
关键词
Cu-Cr Catalyst; Hydrogenation; Furfural; Levulinic acid; Biofuel
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Ontario Postdoctoral Fellowship
- Centre for Research and Innovation in the Bio-Economy (CRIBE)
Biomass-derived platform intermediate furfural and levulinic acid were efficiently hydrogenated to the value-added furfuryl alcohol and promising biofuel gamma-valerolactone, respectively, using a noble-metal-free Cu-Cr catalyst, which was facilely and successfully synthesized by a modified co-precipitation method using the cheap metal nitrates. In the first hydrogenation of furfural, 95% yield of furfuryl alcohol was highly selectively produced at 99% conversion of furfural under the mild conditions. For the hydrogenation of levulinic acid, 90% yield of gamma-valerolactone was highly selectively produced at 97.8% conversion. Besides, the physical properties of the resulting Cu-Cr catalysts were studied by XRD (X-ray diffraction), EDX (Energy-dispersive X-ray), TEM (Transmission electron microscopy) and XPS (X-ray photoelectron spectroscopy) to reveal their influence on the catalytic performance. Subsequently, different reaction parameters were studied and it was found that Cu2+/Cr3+ ratios (0.5, 1 and 2), reaction temperature (120-220 degrees C) and hydrogen pressure (35-70 bar) presented important influence on the catalytic activities. In the end, the stability of the Cu-Cr catalysts was also studied. (C) 2013 Elsevier Ltd. All rights reserved.
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