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Issue 8, 2010
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Bio-oil production from sub- and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties

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Abstract

Microalgae Dunaliella tertiolecta were studied for production of bio-oil through a sub- and supercritical water liquefaction process. The effects of liquefaction temperature, holding time, and feedstock ratio on the yields of the products were investigated. The maximum bio-oil yield is about 36.9%, obtained at a reaction temperature of 360 °C and a holding time of 30 min, with a feedstock ratio of materials to water of 1 : 10. The various physical and chemical characteristics of bio-oil obtained under the most suitable conditions were determined, and detailed chemical compositional analysis of bio-oil was performed using an elemental analyzer, Fourier transform infrared spectroscopy, and gas chromatographymass spectrometry. The empirical formula of bio-oil with a heating value of 26.62 MJ kg−1 was established as CH1.38O0.43N0.07, and bio-oil was composed of hexadecanoic acid, palmitamide, and fatty acid methyl ester. Overall, the bio-oil obtained from microalgae Dunaliella tertiolecta were presented as a potentially valuable and environmentally friendly feedstock candidate for biofuels and chemicals.

Graphical abstract: Bio-oil production from sub- and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties

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Publication details

The article was received on 05 Feb 2010, accepted on 20 Apr 2010 and first published on 25 Jun 2010


Article type: Paper
DOI: 10.1039/C002550J
Energy Environ. Sci., 2010,3, 1073-1078

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    Bio-oil production from sub- and supercritical water liquefaction of microalgae Dunaliella tertiolecta and related properties

    S. Zou, Y. Wu, M. Yang, C. Li and J. Tong, Energy Environ. Sci., 2010, 3, 1073
    DOI: 10.1039/C002550J

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