High yield bio-oil production from fast pyrolysis by metabolic controlling of Chlorella protothecoides
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- 作者：Miao ; Xiaoling ; Wu ; Qingyu
- 关键词：Heterotrophic ; Chlorella protothecoides ; Lipid ; Fast pyrolysis ; Bio-oil
- 刊名：Journal of Biotechnology
- 出版年：2004
- 出版时间：May 13, 2004
- 年：2004
- 卷：110
- 期：1
- 页码：85-93
- 全文大小：141 K
文摘
The use of renewable energy sources is becoming increasingly necessary to mitigate global warming. Recently much research has been focused on identifying suitable biomass species, which can provide high-energy outputs, to replace conventional fossil fuels. This paper reports an approach for increasing the yield of bio-oil production from fast pyrolysis after manipulating the metabolic pathway in microalgae through heterotrophic growth. The yield of bio-oil (57.9 % ) produced from heterotrophic Chlorella protothecoides cells was 3.4 times higher than from autotrophic cells by fast pyrolysis. The bio-oil was characterized by a much lower oxygen content, with a higher heating value (41MJkg−1), a lower density (0.92kgl−1), and lower viscosity (0.02Pas) compared to those of bio-oil from autotrophic cells and wood. These properties are comparable to fossil oil. The research could contribute to the creation of a system to produce energy from microalgae, and also could have great commercial potential for liquid fuel production.