Optimization of degummed Linum usitatissimum methyl ester from methanolysis as a potential resource for diesel engines
Optimization of degummed Linum usitatissimum methyl ester from methanolysis as a potential resource for diesel engines
Authors
Authors
Date
2015-01-12
Datos de publicación:
10.7770/ejee-V1N2-art502
Keywords
Metanólisis - Catálisis - Linum usitatissimum - Semillas - Procesos químicos
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Abstract
Studies were carried out on the methanolysis
of crude and degummed Linum usitatissimum
seed oil with methanol for methyl ester synthesis. In
this study, response surface methodology was applied
in order to optimize the reaction factors for methyl
ester synthesis. The present work also studies the experimental
conditions such as catalyst concentration,
molar ratio (methanol:oil) and reaction time on the
conversion of Linum usitatissimum seed oil to methyl
esters. The conversion was above 96.2% under the
condition of 60 ºC, methanol-oil molar ratio of 8:1,
reaction time of 60 minutes and catalyst concentration
(catalyst/oil) of 0.6 wt%. The resulting methyl
esters (biodiesel) and its diesel blends were characterized
for basic fuel properties including density,
viscosity, cloud and pour point, flash and fire point,
calorific value and acid value. The results show that
the enzymatic degummed Linum usitatissimum seed
oil used with a phosphorus (phospholipids) level of
9.8 ppm provides an excellent methyl ester yield of
over 96.2% and basic fuel properties of these blends
are comparable to those of conventional diesel fuel at
20% of methyl esters concentrations.