Shim et al.
Bio-Diesel Production from Deoxygenation Reaction Over Ce0ꢂ6Zr0ꢂ4O2 Supported Transition Metal
synergistic effects of nickel and Ce0ꢂ6Zr0ꢂ4O2, presence of
Catalyst : Ni-CZO
89.7
free Ni species, and the highest BET surface area. There-
fore, the Ni–CZO catalyst can be considered a promis-
100.0
100
80
60
40
20
0
95.7
ing DO catalyst for the bio-diesel upgrading process. An
optimum reaction time was found to be 3 h for Ni–CZO
catalyst to maximize diesel yield in the DO reaction.
Acknowledgments: This work was conducted under
the framework of Research and Development Program of
the Korea Institute of Energy Research (KIER) (B5-2451).
This work is financially supported by Korea Ministry of
Environment (MOE) as “Knowledge-based environmental
service (Waste to energy recycling) Human resource devel-
opment Project.”
3 h
6 h
12 h
References and Notes
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Figure 6. Conversion of oleic acid over Ni–CZO as a function of reac-
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Delivered by Ingenta to: Nanyang Technological University
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4. CONCLUSIONS
The purpose of this study was to screen CZO supported
catalysts for bio-diesel production from oleic acid via
catalytic DO reaction with 4 transition metals (Ni, Cu,
Co, and Mo). The Ni–CZO catalyst exhibits the highest
oleic acid conversion (89.7%), selectivity for C9∼C17 com-
pounds (27.3%), and oxygen removal efficiency (48.3%)
ꢀ
at a reaction temperature of 300 C. This is due to the
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