Characterization of waste bio-oil as an alternate source of renewable fuel for marine engines

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Bruun N., Khazraie Shoulaifar T., Hemming J., Willför S., Hupa L.
Publisher: Taylor and Francis Ltd.
Publication year: 2019
Journal: Biofuels
ISSN: 17597277 17597269


Several physical and chemical properties of waste fish oils (FOs) and
used cooking oils (UCOs) were of acceptable levels for utilization as
renewable fuels in marine engines. However, the relatively high acid
number of FOs and its increase with ageing might lead to increased risk
of corrosion. The physical properties density and kinematic viscosity,
as well as the water content, were measured using different standard
methods. Similarly, the acid number, the content of unsaturated fatty
acids and the ash content were measured with standard methods. The
chemical composition of fatty acids and monoglycerides was measured with
a gas chromatograph-flame ionization detector and by Fourier transform
infrared spectroscopy. The sulfur and phosphorus contents were measured
using inductively coupled plasma-optical emission spectroscopy. Finally,
the thermal properties were measured by thermogravimetric analysis
while the heat content was measured with an adiabatic oxygen-bomb
calorimeter. The results suggest that these locally produced waste
stream-based bio-oils have potential as carbon dioxide-neutral fuels.
Several properties could be correlated with the fatty acid content of
the oils. The results suggested that for waste-derived bio-oils, their
earlier history (storage, thermal treatments before waste
classification, ageing) affects their suitability as fuels for marine


bio-oil, fish oil, marine engines, renewable fuel, used cooking oil

Last updated on 2020-01-06 at 03:41