ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(8)
Published: Feb. 1, 2025
Abstract
Catalytic
pyrolysis
is
identified
as
a
superior
method
for
the
disposal
of
waste
plastics
providing
enhanced
efficiency
and
environmental
advantages
compared
to
conventional
techniques.
However,
high
cost
catalytic
process
limits
enhancement
economic
benefits.
This
study
investigates
utilization
cost‐effective
spent
catalysts
specifically
Y
zeolite,
ZSM‐5
silica
powder
within
fixed‐bed/fluidized‐bed
combination
reactor
setup
optimize
conversion
into
valuable
products.
The
results
show
that
remarkable
selectivity
zeolite
gasoline
production
achieving
yield
52%
with
its
pore
characteristics
inclined
towards
generation
moderate
acidity
sites
being
distinctive
features.
By
implementing
thermal
driving
strategy
research
further
increases
C
4
fraction
by
1.5
times
significantly
enhances
olefin
isomerization
representing
crucial
advancements
improve
both
quantity
quality
potential
gasoline.
These
findings
provide
essential
insights
support
effective
reuse
in
underscoring
sustainable
management
resource
recovery.
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
22, P. 102066 - 102066
Published: March 31, 2024
The
accumulation
of
plastic
waste
poses
a
major
environmental
challenge,
while
the
conversion
plastics
into
oil
via
pyrolysis
holds
promise
as
an
alternative
energy
solution.
Despite
numerous
investigations
this
area,
none
have
focused
on
optimizing
process
parameters
for
higher
yield
and
enhancing
overall
performance
through
suitable
fuel
modification.
present
study
aims
to
optimize
parameters,
including
heating
rate
(HR),
temperature
(PT),
reaction
time
(RT),
achieve
(WPO)
enhance
by
blending
optimal
quantities
water.
Fuel
characterization
properties
measurement
were
conducted
using
Fourier
Transform
Infrared
ASTM
methods.
WPO
was
blended
with
conventional
diesel
(CDF)
different
volume
concentrations
water
(5%,
10%,
15%).
metrices
assessed
under
various
engine
conditions.
findings
indicate
that
optimum
condition
is
HR
17.3
°C/min,
PT
403
°C,
RT
96.30
min,
quality
confirms
its
suitability
source.
metrics
revealed
has
5.4%
lower
brake-thermal
efficiency
than
CDF,
inclusion
10%
in
(WPO10W)
enhances
11.5%.
in-cylinder
pressure
net-heat
release
are
1.3%
12.9%
respectively,
WPO10W
emulsion
promotes
efficient
combustion.
reduces
oxides
nitrogen,
hydrocarbon,
carbon
monoxide
emissions
21.2%,
9.8%,
22.2%,
compared
WPO.
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 102520 - 102520
Published: July 6, 2024
In
this
study,
plastic
waste
was
efficiently
converted
into
valuable
energy
resources
using
a
unique
pyrolysis
technique.
A
carbon-metal
oxide
hybrid
nanocomposite
introduced
as
catalyst,
and
analyses
of
structural
surface
morphology
were
conducted.
Pyrolysis
process
parameters
such
temperature
(PTemp),
time
(PTime),
catalyst
concentration
(CC)
optimized
through
response
methodology
for
higher
yield
resources.
Char
underwent
proximate
ultimate
analyses,
oil
physicochemical
Fourier
transform
infrared
syngas
composition
determined.
Optimal
conditions
found:
PTemp
300
°C,
PTime
60
min,
CC
1
%
char;
465
150
oil;
550
4
syngas.
Compared
to
the
ZSM-5
char,
oil,
yields
increased
by
7.9
%,
10.8
7.2
respectively,
at
optimum
conditions.
These
findings
suggest
that
can
effectively
meet
demands
with
enhanced
outputs.
