Journal
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
Volume 39, Issue 8, Pages 1083-1093Publisher
WILEY-BLACKWELL
DOI: 10.1002/er.3309
Keywords
renewable energy; biofuel; deoxygenation; decarboxylation; biomass; catalytic reaction; fed-batch reaction; continuous process
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Funding
- NCKU Research Center for Energy Technology
- Strategy 5Y5M Grand under the Ministry of Education of Taiwan [D103-23017]
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Renewable fuels such as green diesel from renewable biomass have received attentions because of energy and environmental concerns. Deoxygenation, used to upgrade biomass derived oils has been applied intensively nowadays. To successfully improve this process, fed-batch and following continuous processes on real biomass derived fatty acids need to be investigated. In this study, liquid-phase deoxygenation of vegetable oil derived fatty acids was carried out over 5% Pd/C with cofeeding H-2. With sufficient hydrogen, complete hydrogenation of unsaturated fatty acids occurred, leading to successive deoxygenation of the saturated fatty acids with n-alkane yields of 99% and 88% and average CO2 selectivity of 94.9% and 94.6% in the fed-batch and continuous mode, respectively. After hydrogenation is completed, lower than 5% of effective H-2 partial pressure was found to be favorable for the decarboxylation pathway and ideal for deoxygenation of biomass derived fatty acids. Copyright (c) 2015 John Wiley & Sons, Ltd.
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