In situ transesterification of highly wet microalgae using hydrochloric acid.

Abstract:

:This study addresses in situ transesterification of highly wet microalgae with hydrochloric acid (HCl) as a catalyst. In situ transesterification was performed by heating the mixture of wet algal cells, HCl, methanol, and solvent in one pot, resulting in the fatty acid methyl ester (FAME) yield over 90% at 95°C. The effects of reaction variables of temperature, amounts of catalyst, reactant, and solvent, and type of solvents on the yield were investigated. Compared with the catalytic effect of H2SO4, in situ transesterification using HCl has benefits of being less affected by moisture levels that are as high as or above 80%, and requiring less amounts of catalyst and solvent. For an equimolar amount of catalyst, HCl showed 15wt.% higher FAME yield than H2SO4. This in situ transesterification using HCl as a catalyst would help to realize a feasible way to produce biodiesel from wet microalgae.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Kim B,Im H,Lee JW

doi

10.1016/j.biortech.2015.02.092

subject

Has Abstract

pub_date

2015-06-01 00:00:00

pages

421-5

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(15)00278-3

journal_volume

185

pub_type

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