Production and Characterization of Biodiesel from Avocado Peel Oil (APO)
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Date
2018-07
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
AAU
Abstract
Biodiesel is as alternative energy source and a promising potential that grows rapidly, due to its
great contribution to the environment, renewable, non-toxicity, biodegradability, essentially sulfur
free
and
its
role
as
a
strategically
source
of
renewable
energy
in
substitution
to
diesel
oil
and
contributes
a minimal
amount
of
net
greenhouse
gases.
In
this
study, biodiesel production from waste avocado peel oil was investigated in laboratory
approach. Experimental results evaluate the major optimum process parameters for basecatalyzed
transesterification
on
biodiesel
yield
as
well
as
its
properties.
The
most
important
variables
affecting methyl ester yield during the transesterification reaction are the molar ratio of
alcohol to oil and the reaction temperature.
From this thesis, the optimum operating conditions for the extraction of oil from avocado peel
oil. For this, particle size of 2.6 mm, solvent type N-hexane and extraction time of 3-5 hr were
considered. A general factorial design was applied to investigate the effect of process variables
on oil yield and biodiesel. Maximum oil yield of 40.6% was obtained for particle size of 2.6 mm
at extraction time of 5 hr. A 95.2% FAME conversion was also obtained using a methanol/oil
ratio of 6:1, 1.21g NaOH, reaction time 67.5min and 60
0
C reaction temperature.
The important properties (characterization) of the experimental biodiesel sample of the biodiesel
(pH, specific gravity, API specific gravity, density, kinematic viscosity, cloud point, cetane number,
iodine
value,
and
high
heating
value)
well-matched
the
relevant
international
standards
for
biodiesel
quality,
were
compared
to
those
of
ASTM
and
EN
standards
for
biodiesel.
The
comparison
shows
that
the
avocado
peel
oil
used
as
a
raw
material
for
biodiesel
production
as
an
alternative
fuel.
Description
Keywords
Biodiesel, Avocado Peel Oil (APO), Production