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Comparison between direct transesterification of microalgae and hydrochar

Yoshikawa Laboratory, Department of Environmental Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8502, Japan

Topical Section: Bioenergy and Biofuel

Hydrothermal carbonization (HTC) of microalgae is one of processes that can effectively remove moisture from microalgae. In addition, the hydrochar retains most of fatty acids from microalgae feedstock, and the content of fatty acids in hydrochar is doubled. This research concentrates on the comparison between direct transesterification of microalgae and hydrochar. The result shows that the biodiesel yields of hydrochar were higher than those of microalgae at the same reaction conditions due to the higher extraction rate of fatty acids from hydrochar. Finally, the amount of methanol and catalyst which is required for a given amount of microalgae can be reduced to a half through the direct transesterification of hydrochar.
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Keywords microalgae; hydrochar; hydrothermal carbonization; direct transesterification; biodiesel

Citation: Vo Thanh Phuoc, Kunio Yoshikawa. Comparison between direct transesterification of microalgae and hydrochar. AIMS Energy, 2017, 5(4): 652-666. doi: 10.3934/energy.2017.4.652


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Copyright Info: 2017, Vo Thanh Phuoc, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

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