Materials,
Год журнала:
2023,
Номер
16(14), С. 4969 - 4969
Опубликована: Июль 12, 2023
Compared
to
diesel,
liquefied
natural
gas
(LNG),
often
used
as
an
alternative
fuel
for
marine
engines,
comes
with
significant
advantages
in
reducing
emissions
of
particulate
matter
(PM),
SOx,
CO2,
and
other
pollutants.
Promoting
the
use
LNG
is
great
significance
achieving
carbon
peaking
neutrality
worldwide,
well
improving
energy
structure.
However,
compared
diesel
medium-
high-speed
engines
may
produce
higher
methane
(CH4)
also
have
nitrogen
oxide
(NOx)
emission
issues.
For
removal
CH4
NOx
from
exhaust
traditional
technical
route
combining
a
oxidation
catalyst
(MOC)
HN3
selective
catalytic
reduction
system
(NH3-SCR)
will
face
problems,
such
low
conversion
efficiency
high
operation
cost.
In
view
this,
technology
non-thermal
plasma
(NTP)
combined
CH4-SCR
proposed.
synergistic
mechanism
between
NTP
catalysts
still
unclear,
which
limits
optimization
NTP-CH4-SCR
system.
This
article
summarizes
integrated
treatment
process
NOx,
including
experimental
analysis
numerical
simulation.
And
relevant
impact
parameters
(such
electrode
diameter,
shape,
material,
barrier
etc.)
reactor
are
discussed.
The
work
this
paper
guiding
high-efficiency
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(33), С. 12270 - 12288
Опубликована: Июль 1, 2024
This
article
provides
an
overview
of
plastic
recycling
development
since
the
1970s.
It
discusses
three
common
options:
mechanical
recycling,
chemical
and
energetic
recycling.
Additionally,
it
considers
challenges
waste
cleaning
sorting.
The
describes
processes
in
detail
for
main
constituents
waste,
such
as
polyethylene
(PE),
polypropylene
(PP),
polystyrene
(PS),
polyvinyl
chloride
(PVC),
terephthalate
(PET).
current
rates
indicate
that
only
is
economically
viable,
which
insufficient
a
sustainable
circular
economy.
Chemical
methods
are
often
too
energy-intensive
require
complex
presorting
making
them
unattractive.
To
become
competitive,
requirements
have
been
derived
this
article.
In
context,
splitting
polymer
chains
using
low-temperature
atmospheric
pressure
plasma
proposed
novel
technology.
date,
technology
has
used
surface
treatment
plastic.
However,
shows
potential
processing
unsorted,
low-value
especially
PE,
PP,
mixed
would
otherwise
be
sent
incineration
or
to
landfills.
Mechanical
unsuitable
these
streams,
competitive
not
yet
established
on
industrial
scale.
Catalysts,
Год журнала:
2024,
Номер
14(1), С. 40 - 40
Опубликована: Янв. 6, 2024
The
advancement
of
plasma
technology
is
intricately
linked
with
the
utilization
computational
fluid
dynamics
(CFD)
models,
which
play
a
pivotal
role
in
design
and
optimization
industrial-scale
reactors.
This
comprehensive
compilation
encapsulates
evolving
landscape
reactor
design,
encompassing
dynamics,
chemical
kinetics,
heat
transfer,
radiation
energy.
By
employing
diverse
tools
such
as
FLUENT,
Python,
MATLAB,
Abaqus,
CFD
techniques
unravel
complexities
turbulence,
multiphase
flow,
species
transport.
spectrum
behavior
equations,
including
ion
electron
densities,
electric
fields,
recombination
reactions,
presented
holistic
manner.
modeling
non-thermal
reactors,
underpinned
by
precise
mathematical
formulations
strategies,
further
empowered
integration
machine
learning
algorithms
for
predictive
optimization.
From
biomass
gasification
to
intricate
this
work
underscores
versatile
potential
hybrid
reshaping
various
industrial
processes.
Within
sphere
catalysis,
simulation
methodologies
have
paved
way
transformative
progress.
Encompassing
configurations,
kinetic
pathways,
hydrogen
production,
waste
valorization,
beyond,
offers
panoramic
view
multifaceted
dimensions
catalysis.
Microkinetic
catalyst
emerge
focal
points
optimizing
CO2
conversion,
while
interplay
between
catalysts
illuminates
insights
into
ammonia
synthesis,
methane
reforming,
hydrocarbon
conversion.
Leveraging
neural
networks
advanced
enables
prowess
plasma-catalytic
applications,
from
valorization
syngas
production
direct
CO2/CH4
exemplifies
wide-reaching
catalysis
sustainable
practices.
Ultimately,
anthology
influence
shaping
forefront
processes,
fostering
innovation
applications.
Abstract
Volatile
organic
compounds
(VOCs)
emissions
are
a
factor
in
number
of
environmental
issues.
To
reduce
the
associated
negative
consequences,
it
is
crucial
to
develop
efficient
VOCs
removal
systems.
Non‐thermal
plasma
(NTP)
co‐catalytic
technology
has
become
popular
research
topic
this
field
as
result
its
ability
activation
energy
reaction
while
simultaneously
improving
product
selectivity.
Despite
huge
studies
synthesising
use
metals
and
their
oxide
catalysts
degradation
VOCs,
metal‐organic
frameworks
(MOFs)
MOF
derivatives
subject
comparatively
few
area.
This
paper
reviews
basic
principles
technological
progress
NTP
degradation,
with
focus
on
MOFs
well
other
non‐metallic
carbon
materials
degradation.
It
highlights
potential
future
development
direction
catalytic
synergistic
treatment
by
focusing
optimization
synergism
impact.
In
end,
challenges
faced,
prospects,
our
personal
perspective
directions
also
estimated
elucidated.
