Results in Engineering,
Journal Year:
2023,
Volume and Issue:
17, P. 100936 - 100936
Published: Feb. 3, 2023
Renewable
energy
from
biomass
waste
shall
become
an
effective
alternative
to
faster-depleting
fossil
fuels
and
pyrolysis
is
a
suitable
approach
produce
renewable
biomass.
Further,
kinetics
parameters
are
essential
in
designing
reactors
for
this
work
provides
of
catalytic
(CP)
Delonix
regia
(DR)
In
addition
significance,
the
novelty
includes
utilization
catalysts
three
different
kinds
such
as
zeolite
(Na–Y),
mixed
metal
oxides
(TiO2+ZnO),
supported
noble
(Pt/C)
at
varying
loads
30–10
wt
%.
All
experiments
were
performed
micro
pyrolyzer
(thermogravimetry
analyzer)
under
non-isothermal
conditions
five
heating
rates
(5,
10,
20,
35,
55
°C
min−1)
temperature
range
25–1000
°C.
To
estimate
kinetic
factors
(KF)
thermodynamic
(TP),
iso-conversional
techniques
Differential
Friedman
(DFM),
Kissinger–Akahira–Sunose
(KAS),
Ozawa–Flynn–Wall
(OFW),
Starink
(STK),
Distributed
Activation
Energy
(DAE)
employed.
KAS
technique
yielded
lowest
mean
activation
energy,
Eα
(181.29
kJ
mol−1),
frequency
factor,
ko
(2.10
E+16
s−1)
by
use
Na–Y
load
10
%
whereas
corresponding
change
enthalpy
177
mol−1,
Gibbs
free
178
entropy
−9.58
E−04
mol−1
K−1.
Criado's
master
plots
confirmed
reaction
pathway
as:
second
order
(F2),
power-law
(P4),
contraction
area
(R2),
zero
(F0),
volume
(R3),
fourth
(F4)
20
min−1
DFM
CP
DR
using
catalyst
Circular Economy,
Journal Year:
2024,
Volume and Issue:
3(1), P. 100077 - 100077
Published: March 1, 2024
The
practical
application
of
plastics
is
as
indispensable
it
problematic
regarding
disposal.
Plastics
present
significant
opportunities
in
the
context
circular
usage
and
recycling.
A
economy
dictates
utilization
every
side
stream
to
minimize
waste.
Current
waste
management
techniques
are
insufficient
reducing
plastic
entering
landfills,
wastewater
treatment
systems,
environment.
Under
these
circumstances,
biodegradation
has
emerged
a
viable
environmentally
responsible
approach
pollution.
Methods
needed
for
natural
degradation
using
microbes
that
can
utilize
their
sole
carbon
source.
Studies
enhance
catalytic
activity
plastic-degrading
enzymes
through
protein
engineering
approaches
relatively
new
field
research.
Enzymatic
product
creation
represents
purely
biological
recycling
method
sustainable
economy.
This
review
builds
insights
derived
from
previous
studies
provides
brief
overview
enzymes,
improvements
enzyme
efficiency,
stabilization
via
various
strategies.
In
addition,
recent
advances
valorization
technology
based
on
systems
metabolic
future
directions
discussed.
Processes,
Journal Year:
2023,
Volume and Issue:
11(5), P. 1487 - 1487
Published: May 14, 2023
The
exhaustion
of
fossil
energy
and
the
severe
pollution
induced
by
using
plastics
has
forced
people
to
embark
on
road
sustainable
development.
high
value
recycling
become
an
important
part
conservation.
Microwave
treatment,
owning
specific
interactions
between
electric
field
molecules
treated
materials,
presents
potential
advantages
in
application
plastic
pyrolysis.
Therefore,
research
status
microwave-assisted
pyrolysis
(MAP)
produce
high-value-added
liquid
oil,
gas,
solid
carbon
was
reviewed
this
paper.
effects
properties,
microwave
treatment
parameters,
absorbers,
co-pyrolysis,
catalysts,
reactor
devices
process
products
were
analyzed.
It
is
essential
optimize
experimental
design
studying
co-pyrolysis
technology
understanding
mechanism
improve
product
selectivity.
At
same
time,
continuous
MAP
device
for
large-scale
still
needs
be
developed.
In
addition,
developing
a
simulation
computing
platform
screening
optimizing
processes,
commercial
production
required
make
more
efficient.
npj Materials Sustainability,
Journal Year:
2024,
Volume and Issue:
2(1)
Published: July 22, 2024
Abstract
The
quest
for
low-carbon
alternatives
to
fossil
fuels
and
the
carbon
emissions
associated
with
natural
degradation
of
biomass
have
accelerated
development
processing
technologies.
Microwave
catalytic
pyrolysis
is
emerging
as
a
technology
efficient
conversion
into
energy,
chemicals.
However,
due
inherent
poor
dielectric
properties
complex
composition
biomass,
two
main
technical
challenges
faced
by
microwave
are
heating
improving
selectivity
target
products.
Potential
solutions
involve
use
absorbents
catalysts,
respectively.
This
review
begins
addressing
difficulty
in
balancing
energy
efficiency
introducing
that
play
positive
role
efficiency.
principle
assisting
revealed,
impacts
absorbent
type
(related
physical
properties)
additive
amount
on
effect
product
distribution
discussed.
Subsequently,
search
catalysts
applied
modulation
explored.
Special
attention
has
been
paid
absorption
properties,
including
activated
carbon,
zeolites,
some
metal
oxides
salts.
In
addition,
efficiency,
economic
feasibility,
environmental
this
utilizing
examined
based
analysis,
techno-economic
assessment,
life
cycle
assessment.
current
scale-up
potential
enhance
commercial
feasibility
also
Finally,
provides
future
directions
technology.
