Construction of novel Cu/ZnO-Al^sub 2^O^sub 3^ composites for furfural hydrogenation: The role of Al components

Novel Cu/ZnO-Al2O3 composites had been constructed and applied in furfural hydrogenation to produce furfuryl alcohol in a fixed-bed reactor. As the result, conversion of FFA over Cu/ZnO catalyst (within 16–24 h TOS) could be improved from 84.9% to 98.0% at 120 °C and 51.4% to 72.1% at 100 °C with a...

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Bibliographic Details
Published in:Applied catalysis. A, General General, 2018-07, Vol.561, p.78
Main Authors: Yang, Xiaohai, Meng, Qingwei, Ding, Guoqiang, Wang, Yueqing, Chen, Huimin, Zhu, Yu lei, Li, Yong Wang
Format: Article
Language:English
Subjects:
Alcohol
Aluminum oxide
Biomass
Boehmite
Catalysis
Catalysts
Composite materials
Copper
Furfural
Furfuryl alcohol
Hydrogenation
Titration
X ray photoelectron spectroscopy
Zinc oxide
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Summary:Novel Cu/ZnO-Al2O3 composites had been constructed and applied in furfural hydrogenation to produce furfuryl alcohol in a fixed-bed reactor. As the result, conversion of FFA over Cu/ZnO catalyst (within 16–24 h TOS) could be improved from 84.9% to 98.0% at 120 °C and 51.4% to 72.1% at 100 °C with a high selectivity of FOL (≈98%) over the novelly constructed Cu/ZnO-Al2O3 catalyst. The role of Al components derived from different precursors like Al(NO3)3, as-prepared Al(OH)3 and pseudo-boehmite had been systemically investigated by various techniques such as XRD, Raman spectroscopy, H2-TPR, N2O titration, XPS, AES experiments and confirmed to be both improving dispersion of copper/zinc species and hindering Cu-ZnO interaction of the aurichalcite derived catalysts. Preparation of the industrial Cu/ZnO-Al2O3 catalysts had been revealed and explained more clearly.
ISSN:0926-860X
1873-3875