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Direct hydrodeoxygenation of algal lipids extracted from Chlorella alga

Lookup NU author(s): Dr Hoang NguyenORCiD

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Abstract

BACKGROUNDHydrodeoxygenation (HDO) of Chlorella algal oil extracted with supercritical hexane and stearic acid as a model compound was investigated over several supported Ni and Mo₂N–MoO₂ catalysts in a semibatch reactor at 300 °C under 30 bar in the presence of hydrogen.RESULTSThe results showed that all catalysts were very active in HDO of stearic acid. With crude algal oil, a maximum conversion of lipids of 35% was found with an acidic Ni‐HY‐80 zeolite catalyst after 360 min. The main products in algal oil HDO were fatty acids; whereas maximally only 7% hydrocarbons were formed with Ni‐HY‐80. The main hydrocarbon products were formed via decarbonylation, as the hydrogenation/dehydration route was suppressed.CONCLUSIONSHydrodeoxygenation of crude Chlorella algal oil was demonstrated over nickel supported on beta zeolite and with a molybdenum oxide–nitride catalyst. Strong catalyst deactivation occurred for the former catalyst, whereas the latter retained its activity. © 2016 Society of Chemical Industry

Publication metadata

Author(s): Nguyen HSH, Maki-Arvela P, Akhmetzyanova U, Tisler Z, Hachemi I, Rudnas A, Smeds A, Eranen K, Aho A, Kumar N, Hemming J, Peurla M, Murzin DY

Publication type: Article

Publication status: Published

Journal: Journal of Chemical Technology and Biotechnology

Year: 2017

Volume: 92

Issue: 4

Pages: 741-748

Print publication date: 08/03/2017

Online publication date: 25/11/2016

Acceptance date: 22/11/2016

ISSN (print): 0268-2575

ISSN (electronic): 1097-4660

Publisher: John Wiley and Sons Ltd

URL: https://doi.org/10.1002/jctb.5158

DOI: 10.1002/jctb.5158

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