Advancements in biodiesel production from castor oil: A comprehensive review
Energy Conversion and Management,
Journal Year:
2025,
Volume and Issue:
330, P. 119622 - 119622
Published: Feb. 22, 2025
Language: Английский
Biodiesel production from waste cooking oil through transesterification catalyzed by the strontium-zinc bifunctional oxides
Chemical Engineering and Processing - Process Intensification,
Journal Year:
2024,
Volume and Issue:
200, P. 109777 - 109777
Published: April 4, 2024
Language: Английский
Kinetics, thermodynamics, and optimization studies using response surface methodology in quinoxalines synthesis with efficient heterogeneous catalysts: environmental sustainability metrics assessment
Research on Chemical Intermediates,
Journal Year:
2024,
Volume and Issue:
50(12), P. 5799 - 5821
Published: Oct. 7, 2024
Language: Английский
Reaction Mechanism of Rapid CO Electroreduction to Propylene and Cyclopropane (C3+) over Triple Atom Catalysts
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(38), P. 50567 - 50575
Published: June 26, 2024
The
carbon
monoxide
reduction
reaction
(CORR)
toward
C2+
and
C3+
products
such
as
propylene
cyclopropane
can
not
only
reduce
anthropogenic
emissions
of
CO
CO2
but
also
produce
value-added
organic
chemicals
for
polymer
pharmaceutical
industries.
Here,
we
introduce
the
concept
triple
atom
catalysts
(TACs)
that
have
three
intrinsically
strained
active
metal
centers
reducing
to
products.
We
applied
grand
canonical
potential
kinetics
(GCP-K)
screen
12
transition
metals
(M)
supported
by
nitrogen-doped
graphene
denoted
M3N7,
where
M
stands
Mn,
Fe,
Co,
Ni,
Cu,
Ru,
Rh,
Pd,
Ag,
Ir,
Pt,
Au.
sought
with
favorable
binding,
hydrogen
C–C
dimerization
energetics,
identifying
Fe3N7
Ir3N7
best
candidates.
then
studied
entire
mechanism
from
C3H6
C2H4
a
function
via,
respectively,
12-electron
8-electron
transfer
pathways
on
Ir3N7.
Density
functional
theory
(DFT)
predicts
an
overpotential
0.17
VRHE
0.42
at
298.15
K
pH
=
7.
Also,
DFT
0.15
ethylene.
This
work
provides
fundamental
insights
into
design
advanced
synthesis
room
temperature.
Language: Английский
Experimental and Computational Investigations of Biodiesel Production from Castor Oil Using Li-Doped Salmon Fish Bone-Supported Lanthanum oxide Catalyst in a Micro-Reactor
Renewable Energy,
Journal Year:
2024,
Volume and Issue:
unknown, P. 121455 - 121455
Published: Sept. 1, 2024
Language: Английский
Characterization and optimization of biodiesel production from corn oil using heterogeneous MoO3/MCM-41 catalysts
Jéssica Caroline Freitas Cavalcante,
No information about this author
André Miranda da Silva,
No information about this author
Paula Mikaelly Batista Caldas
No information about this author
et al.
Catalysis Today,
Journal Year:
2024,
Volume and Issue:
unknown, P. 115119 - 115119
Published: Oct. 1, 2024
Language: Английский
Experimental and Computational Investigations of Biodiesel Production from Castor Oil: Intensifying Transesterification with a Lithium-Doped Salmon Fish Bone-Supported Lanthanum Oxide Composite Catalyst in a Micro-Reactor
Published: Jan. 1, 2024
Ensuring
efficient
and
sustainable
biodiesel
production
is
essential
for
addressing
environmental
concerns
meeting
global
energy
demands.
This
study
aims
to
optimize
the
transesterification
of
castor
oil
through
development
a
distinctive
Li-doped
salmon
fish
bone-supported
La2O3
composite
catalyst
within
micro-reactor
setup.
The
optimal
(3%Li/SFB-La)
was
thoroughly
evaluated
its
physicochemical
features
employing
range
characterization
techniques,
including
XRD,
XPS,
BET,
FESEM,
TEM,
TGA/DSC,
FT-IR.
According
DFT
calculations,
function
Li
dopants,
which
have
lower
electronegativity
(0.98)
compared
La
(1.1),
enhance
charge
transfer
capability
sites,
thereby
increasing
their
reactivity
with
triglycerides.
In
interim,
we
determined
optimized
reaction
conditions:
6:1
methanol/oil
molar
ratio
5
wt.
%
loading
at
338
K.
Under
these
parameters,
an
impressive
99.38%
conversion
achieved
1.5
hours.
Furthermore,
3%Li/SFB-La
exhibited
remarkable
stability,
retaining
high
activity
throughout
7
cycles
without
any
significant
loss
efficacy.
Moreover,
kinetics
were
investigated,
revealing
rate
constant
1.17
h−1
activation
14.46
kJ
mol−1.
Language: Английский
Characterization and Optimization of Biodiesel Production from Corn Oil Using Heterogeneous X_Moo3/Mcm-41 Catalysts
Jéssica Caroline Freitas Cavalcante,
No information about this author
André M. N. Silva,
No information about this author
PAULA MIKAELLY BATISTA CALDAS
No information about this author
et al.
Published: Jan. 1, 2024
Different
types
of
heterogeneous
catalysts
have
been
developed
globally
and
tested
for
biodiesel
production
via
transesterification
reaction.
In
this
study,
varying
contents
MoO3
were
incorporated
into
the
mesoporous
molecular
sieve
MCM-41
using
pore
saturation
method
to
form
(x_
MoO3/MCM-41).
Characterization
results
confirmed
formation
structure
phase
filling
by
molybdenum,
along
with
different
surface
areas,
volume,
diameters.
The
silanol
groups
impart
acidity
sieve,
a
molybdenum
content
above
optimum
reduced
availability
acidic
sites
on
catalyst
surface,
micro
channels,
resulting
in
lower
acidity.
Catalytic
performance
was
evaluated
22
factorial
design
three
center
points
optimize
reaction
parameters
including
x_MoO3
temperature.
maximum
yield
87.87%,
achieved
3%
load
containing
15
wt.%
MoO3,
at
an
oil-to-alcohol
molar
ratio
1:20
150°C
3
hours.
Temperature
had
most
significant
influence
yield.
Language: Английский