Molecules,
Год журнала:
2024,
Номер
29(23), С. 5613 - 5613
Опубликована: Ноя. 27, 2024
The
paper
manufacturing
process
produces
liquid
and
gaseous
alternative
fuels,
as
well
solid
wastes.
These
can
be
subsequently
treated
through
chemical
processing,
oxidation,
thermal
activation,
resulting
in
adsorbent
materials
with
CO2
adsorption
capacities.
valorisation
of
black
liquor
waste
from
was
achieved
a
catalytic
pyrolysis
using
two
catalysts
previously
prepared
house
(Cu-Zn-MCM-41
Ni-SBA-16).
HCl-treated
material,
Ni-SBA-16-catalysed
pyrolysis,
selected
for
use
tests
it
had
the
highest
specific
surface
area
(224.06
m2/g)
pore
volume
(0.28
cm3/g).
experimental
setup
linked
to
gas
chromatograph
order
evaluate
efficiency
binary
mixture
consisting
81%
19%
N2.
With
capacity
1.61
mmol/g,
separation
99.78%,
recovery
yield
90.02%,
concluded
that
developed
material
Ni-SBA16-catalysed
HCl
treatment
represents
viable
solution
pyrolytic
removal
reduction
greenhouse
gases.
South African Journal of Chemical Engineering,
Год журнала:
2024,
Номер
49, С. 249 - 257
Опубликована: Июнь 14, 2024
This
study
investigates
the
reactivity
kinetics
of
biochar
from
biomass.
The
biochars
were
obtained
by
pyrolyzing
peanut
shells
(PNS_800),
cashew
nut
(CNS_800),
and
millet
stalks
(MS_800)
at
800
°C
in
a
fixed
bed
reactor.
chemical
composition
samples
shows
that
silicon
(Si),
potassium
(K),
magnesium
(Mg)
are
major
elements
(PNS_800)
while
(CNS_800)
(MS_800).
activated
CO2
(200
Nml/min)
atmosphere
temperatures
1123
K,
1173
1223
K
under
atmospheric
pressure.
random
pore
model
(RPM)
modified
(MRPM)
used
to
correlate
profiles
versus
carbon
conversion
determine
kinetic
parameters.
It
was
observed
increases
as
temperature
increases,
attaining
least
three
times
than
those
corresponding
K.
Furthermore,
increase
is
more
pronounced
with
MS_800.
RPM
cannot
follow
experimental
all
samples.
However,
better
fitting
when
using
MRPM
model.
activation
energies
(Ea)
distributed
range
98.11–148.46
kJ/mol
pre-exponential
factors
(k0)
19.31–249.53
s-1.
for
model,
lower
energy
factor
CNS_800.
Ea
et
k0
well
evaluated
PNS_800
MS_800
coefficient
determination
99.76%.
proposed
could
be
describe
biomass
coal.
Sustainability,
Год журнала:
2024,
Номер
16(16), С. 7088 - 7088
Опубликована: Авг. 18, 2024
The
design
of
composites
offers
extensive
opportunities
for
controlling
parameters
and
utilizing
diverse
materials,
including
those
sourced
from
recycling
or
waste
streams.
In
this
study,
biocomposites
were
developed
using
high-density
polyethylene
(HDPE)
pomace
derived
oilseed
plants
such
as
evening
primrose,
gold
pleasure,
rapeseed,
sunflower
seeds,
mixed
in
a
1:1
ratio.
These
evaluated
their
structural,
mechanical,
morphological,
thermal
properties,
well
vulnerability
to
overgrowth
by
cellulolytic
fungi.
results
indicate
that
incorporating
plant
into
HDPE
reduces
stability
while
increasing
water
absorption
thickness
swelling.
Additionally,
the
showed
enhanced
fungal
growth,
which
may
improve
biodegradability.
Notably,
PE_EP
composite,
primrose
pomace,
did
not
show
significant
differences
surface
roughness
MOE
compared
pure
polyethylene.
case
PE_R
an
increase
was
observed
maintaining
MOR
parameter
PE.
Although
generally
mechanical
properties
lower
polyethylene,
findings
suggest
with
further
optimization,
oil
can
be
valuable
raw
material
producing
suitable
various
industrial
applications,
thereby
contributing
sustainability
effective
recycling.
Fullerenes Nanotubes and Carbon Nanostructures,
Год журнала:
2024,
Номер
32(11), С. 993 - 1004
Опубликована: Май 20, 2024
In
order
to
achieve
the
resource
utilization
of
waste
polyester
(WPT),
WPT
based
activated
carbon
(WPT-AC)
was
prepared
by
ZnCl2
activation
high-temperature
pyrolysis
method.
The
phase
morphology,
characteristic
groups,
pore
structure
specific
surface
area
and
microstructure
were
characterized
TGA,
XRD,
FTIR,
BET
SEM.
optimum
preparation
process
WPT-AC
determined
L9(34)
orthogonal
experiment,
adsorption
performance
for
methylene
blue
(MB)
evaluated.
showed
a
high
1037.62
m2/g,
with
rich
structure,
which
provided
possibility
efficient
adsorption.
pretreatment
plays
key
role
in
formation
abundant
is
conducive
improving
pollutants.
excellent
field
organic
dye
adsorption,
highest
removal
rate
MB
reached
97.34%.
mainly
related
electrostatic
attraction,
hydrogen
bonding
π–π
conjugation.
analysis
kinetics
thermodynamics
better
understanding
process.
