Biofuels from microalgae: lipid extraction and methane production from the residual biomass in a biorefinery approach | Health & Environmental Research Online (HERO)

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Citation
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HERO ID

6039483

Reference Type

Journal Article

Title

Biofuels from microalgae: lipid extraction and methane production from the residual biomass in a biorefinery approach

Author(s)

Hernández, D; Solana, M; Riaño, B; García-González, MC; Bertucco, A

Year

2014

Is Peer Reviewed?

Yes

Journal

Bioresource Technology
ISSN: 0960-8524
EISSN: 1873-2976

Volume

170

Page Numbers

370-378

Language

English

PMID

25151474

DOI

10.1016/j.biortech.2014.07.109

Web of Science Id

WOS:000341357600047

URL

http://www.sciencedirect.com/science/article/pii/S0960852414010980
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Abstract

Renewable fuels and energy are of major concern worldwide and new raw materials and processes for its generation are being investigated. Among these raw materials, algae are a promising source of lipids and energy. Thus, in this work four different algae have been used for lipid extraction and biogas generation. Lipids were obtained by supercritical CO2 extraction (SCCO2), while anaerobic digestion of the lipid-exhausted algae biomass was used for biogas production. The extracted oil composition was analyzed (saturated, monounsaturated and polyunsaturated fatty acids) and quantified. The highest lipid yields were obtained from Tetraselmis sp. (11%) and Scenedesmus almeriensis (10%), while the highest methane production from the lipid-exhausted algae biomass corresponded to Tetraselmis sp. (236mLCH4/gVSadded).

Keywords

Microalgae; Lipid extraction; Supercritical carbon dioxide; Anaerobic digestion; Biorefinery