The use of thermal lens spectroscopy to assess oilabiodiesel blends

Thermal lens (TL) spectroscopy in a dual-beam configuration was applied in a study on biodiesel and oilabiodiesel blends. The goal of this work was to evaluate the behavior of the thermal and mass diffusivities that arose when oil was added to biodiesel and to verify the capability of the method to...

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Bibliographic Details
Published in:Fuel (Guildford) 2013-01, Vol.103, p.506-511
Main Authors: Ventura, M, Simionatto, E, Andrade, LHC, Simionatto, EL, Riva, D, Lima, S M
Format: Article
Language:English
Subjects:
Biodiesel
Blends
Diffusion
Fuels
Lenses
Polymer blends
Soybeans
Spectroscopy
Online Access:Get full text
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Summary:Thermal lens (TL) spectroscopy in a dual-beam configuration was applied in a study on biodiesel and oilabiodiesel blends. The goal of this work was to evaluate the behavior of the thermal and mass diffusivities that arose when oil was added to biodiesel and to verify the capability of the method to identify small concentrations of triacylglycerol in biofuel. When transitioning from pure biodiesel to a blend consisting of 98% biodiesel and 2% soybean oil, the thermal diffusivity decreased 15% and the mass diffusivity increased 59%, which indicated that both parameters can provide significant information about the presence of oil in biodiesel. Therefore, TL spectroscopy can be a useful method for certifying the quality of biodiesel and biodiesel blends.
ISSN:0016-2361
DOI:10.1016/j.fuel.2012.08.027