Energies,
Год журнала:
2024,
Номер
17(24), С. 6407 - 6407
Опубликована: Дек. 19, 2024
This
study
is
related
to
producing
a
set
of
fatty
acid
esters
from
different
vegetable
oils
and
C1–C12
alcohols.
A
total
66
products
were
synthesized.
The
obtained
characterized
by
composition,
density,
viscosity,
saponification
value,
iodine
low-temperature
properties,
oxidative
stability.
It
was
established
that
the
as
well
alcohol,
used
has
significant
impact
on
properties.
Comparing
physicochemical
properties
with
existing
standards
specifications,
it
proposed
use
for
industrial
applications.
In
particular,
rapeseed
oil
methyl
are
an
ideal
candidate
application
biodiesel,
while
transesterification
soybean
oil,
sunflower
coconut
higher
alcohols
led
promising
bio-lubricants.
Castor
alkyl
could
potentially
be
utilized
base
due
their
excellent
viscosity
Energy Science & Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 26, 2025
ABSTRACT
The
oxidation
stability
of
biodiesel
is
a
critical
factor
affecting
its
storage
and
performance,
necessitating
the
use
antioxidants
to
enhance
shelf
life
reliability.
Both
natural
synthetic
have
proven
effective
in
improving
biodiesel,
with
numerous
studies
demonstrating
their
ability
extend
induction
period
delay
oxidative
degradation.
However,
while
technical
efficacy
these
well‐documented,
techno‐economic
analysis
that
evaluates
cost‐effectiveness
using
versus
remains
unexplored.
This
creates
uncertainty
selecting
most
sustainable
economically
viable
antioxidant
option.
study
aimed
conduct
comparing
stabilizing
biodiesel.
evaluated
antioxidants,
specifically
hydrogenated
methoxy
eugenol,
derived
from
methanolic
extract
wild
loquat
plants,
along
comparison
commonly
used
antioxidants.
Comprehensive
simulations
modeling
were
conducted
Aspen
Plus®
V10
commercial
simulation
software
block‐wise
manner.
performance
was
assessed
by
considering
quantities
qualities
glycerol,
processes
resulted
negative
net
present
values
longer
payback
periods
11.7
17.8
years,
showed
shorter
ranging
3.8
12
years.
Natural
particularly
those
extracted
clove
wastes
plant
parts,
demonstrated
superior
lowest
operating
raw
materials
costs,
shortest
period,
highest
internal
rate
return
(IRR),
best
profitability.
Therefore,
are
option
for
stabilization,
outperforming
terms
IRR,
Energies,
Год журнала:
2025,
Номер
18(10), С. 2533 - 2533
Опубликована: Май 14, 2025
As
fossil
fuel
depletion
and
environmental
pollution
become
increasingly
severe,
biodiesel
has
emerged
as
a
promising
renewable
alternative
to
conventional
diesel
due
its
biodegradability,
low
sulfur
emissions,
high
combustion
efficiency.
This
paper
provides
comprehensive
review
of
the
evolution
feedstocks,
major
production
technologies,
key
factors
influencing
efficiency
quality.
It
traces
development
feedstocks
from
first-generation
edible
oils,
second-generation
non-edible
oils
waste
fats,
third-generation
microalgal
fourth-generation
biofuels
based
on
synthetic
biology,
with
comparative
analysis
their
respective
advantages
limitations.
Various
technologies
such
transesterification,
direct
esterification,
supercritical
alcohol
methods,
enzyme-catalyzed
transesterification
are
examined
in
terms
reaction
mechanisms,
process
conditions,
applicability.
The
effects
critical
parameters
including
alcohol-to-oil
molar
ratio,
time,
temperature
yield
quality
discussed
detail.
Particular
attention
is
given
role
catalysts,
both
homogeneous
heterogeneous
types,
enhancing
conversion
In
addition,
life
cycle
assessment
(LCA)
briefly
considered
evaluate
impact
sustainability
production.
serves
valuable
reference
for
improving
advancing
sustainable
feedstock
development,
promoting
commercial
application
biodiesel.
