期刊
BIORESOURCE TECHNOLOGY
卷 100, 期 23, 页码 5813-5817出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2009.06.077
关键词
In situ; Reactive extraction; Short-chained dialkyl carbonates; Biodiesel
资金
- National Special Fund for State Key Laboratory of Bioreactor Engineering [2060204]
- Shanghai Postdoctoral Scientific Program [09R21421400]
- Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences [KLREGHo807k4]
Dimethyl/diethyl carbonate was adopted as extraction solvent and transesterification reagent at the same time for in situ lipase-catalyzed reactive extraction of oilseeds for biodiesel production in this work. Fatty acid methyl esters and ethyl esters were respectively obtained with higher yields than those achieved by conventional two-step extraction/transesterification. The augment ranged from 15.7% to 31.7%. The key parameters such as solvent/seed ratio and water content were further investigated to find their effects on the in situ reactive extraction. The highest yields of Pistacia chinensis Bunge methyl ester, P. chinensis Bunge ethyl ester, Jatropha curcas L methyl ester and J. curcas L ethyl ester could attain 89.6%, 90.7%. 95.9% and 94.5%, respectively under the optimized conditions. Published by Elsevier Ltd.
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