Partial Oxidation of CH4 in Plasma: The Effects of Oxidant and Catalyst Addition
Molecules,
Journal Year:
2025,
Volume and Issue:
30(9), P. 1958 - 1958
Published: April 28, 2025
The
partial
oxidation
of
methane
in
cold
atmospheric
plasma
represents
an
innovative
and
promising
approach
to
energy
conversion
sustainable
chemical
processes
for
obtaining
various
chemicals
fuels.
In
present
work,
dielectric
barrier
discharge
is
applied
the
CH4
combined
with
Cu-containing
catalysts.
catalysts
different
porous
acidic
properties
were
obtained,
characterized
by
physico-chemical
methods
used
plasma-catalytic
reaction.
influence
oxidizing
agent
(oxygen
vs.
air)
on
products’
selectivity
yield
was
studied.
It
found
that
using
air
as
oxidizer
beneficial
terms
gaseous
products
yield,
N2
aided
denser
microdischarge
formation.
Using
pure
O2
resulted
enhanced
oxygenate
(mainly
CH3OH)
generation.
Furthermore,
methanol
compared
plasma-only
process,
well
efficiency
process.
Language: Английский
Enhancements of Triethanolamine CO2 Absorption Rate and Degradation in the Presence of Nickel Nanoparticles Catalysts
Harold W. Orendi,
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Kevin Joby,
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Lidija Šiller
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et al.
Atmosphere,
Journal Year:
2024,
Volume and Issue:
15(12), P. 1479 - 1479
Published: Dec. 11, 2024
Here,
the
catalytic
and
degradation
effect
of
nickel
nanoparticles
(NiNPs)
on
triethanolamine
(TEA)
with
CO2
at
20
°C
50
a
range
TEA
concentrations
(3–30
wt%)
was
studied.
We
show
that
absorption
rate
can
be
enhanced
NiNPs,
maximum
enhancement
8.3%
when
compared
to
control
solution
found
30
wt%
alone.
Additionally,
time
for
fully
loaded
is
reduced;
control,
NiNPs
solutions
were
up
26.3%
faster.
Also,
best
our
knowledge,
this
first
has
been
subject
both
oxygen
(30
wt%,
55
°C,
0.35
L/min
air,
0.4
molCO2/molTEA,
7.5
mL/min
CO2)
thermal
without
0.5
135
°C).
In
experiments,
surprisingly,
there
no
significant
difference
in
presence
NiNPs.
At
high
temperature
(135
°C),
lost
19.2%
20.3%
original
TEA,
respectively.
oxygen,
30.5%
33.6%
This
indicates
or
its
mixture
other
amines
could
improve
post-combustion
capture.
Language: Английский