Hideki Kanda
Energy Engineering Research Laboratory, Central Research Institute of Electric Power Industry, Japan
Peng Li
Energy Engineering Research Laboratory, Central Research Institute of Electric Power Industry, Japan
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http://dx.doi.org/10.3384/ecp11057530Published in: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden
Linköping Electronic Conference Proceedings 57:71, p. 530-536
Published: 2011-11-03
ISBN: 978-91-7393-070-3
ISSN: 1650-3686 (print), 1650-3740 (online)
We proposed a simple; energy-efficient and environmental friendly method to extract green crude oil from microalgae by using dimethyl ether (DME). In this study; this method was tested on several species of natural blue-green microalgae. Consequently; the green crude was successfully directly extracted from highmoisture microalgae (78.2–93.4 % water content) with an extraction rate ranging from 9.9 to 40.1 % of the dry weight of the microalgae. The extraction yield of total green crude on these species by liquefied DME was compared to the widely-used Bligh-Dyer’s method. The DME method almost achieved an extraction capacity approximately equivalent to the Bligh-Dyer’s method. Furthermore; the dewatering properties of the proposed method on several species of wet microalgae; and the extraction efficiency were also investigated.
