期刊
BIORESOURCE TECHNOLOGY
卷 193, 期 -, 页码 386-392出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.06.122
关键词
Biodiesel; Wet in situ transesterification; Microalgae; Cell hydrolysis; Chemicals
资金
- Ministry of Science, ICT and Future Planning, South Korea [ABC-2011-0031354]
This work addresses an unprecedented way of co-producing biodiesel (FAEE) and valuable chemicals of ethyl levulinate (EL), ethyl formate (EF) and diethyl ether (DEE) from wet in situ transesterification of microalgae. EL, EF, and DEE were significantly produced up to 23.1%, 10.3%, and 52.1% of the maximum FAEE mass with the FAEE yield higher than 90% at 125 degrees C. Experiments to elucidate a detailed route of EL and EF synthesis were fulfilled and it was found that its main route to the production of EL and EF was the acid hydrolysis of algal cells and esterification with ethanol. To investigate the effect of reaction variables on the products yields, comprehensive experiments were carried out with varying temperatures, solvent and alcohol volumes, moisture contents and catalyst amounts. Coproduction of DEE, EL, EF and FAEE can contribute to elevating the economic feasibility of microalgae-based biodiesel supply chain. (C) 2015 Elsevier Ltd. All rights reserved.
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