Communications in Science and Technology,
Journal Year:
2024,
Volume and Issue:
9(1), P. 121 - 127
Published: July 16, 2024
This
work
is
focused
on
increasing
the
capturing
efficiency
of
carbon
dioxide
(CO2)
through
flue
gas
purification
systems.
To
maximize
CO2
capture
process,
many
process
variables
such
as
temperature,
flow
rates,
absorbent
concentrations,
and
nanoparticles
were
investigated.
study
describes
use
a
polypropylene
hollow
fiber
membrane
contactor
to
separate
from
nitrogen
using
different
solvents,
including
Potassium
carbonate
(K2CO3),
N-methyl
diethanolamine
(MDEA),
monoethanolamine
(MEA).
Also,
presence
silica
piperazine
(PZ)
enhances
performance.
On
other
hand,
amine
mixed
amino
absorbents
MDEA-PZ
MDEA-MEA
prepared
compared
based
absorption
capacity.
The
optimal
order
performance
when
applied
followed
by
MDEA-PZ.
At
solute
concentration
9%,
exhibits
highest
removal
efficiency,
which
74.12%.
However,
at
11%,
MEA,
MDEA-PZ,
MDEA
have
efficiencies
80.15%,
75.13%,
63.12%,
respectively.
Energy & Fuels,
Journal Year:
2022,
Volume and Issue:
37(1), P. 58 - 73
Published: Dec. 25, 2022
Carbon
dioxide
(CO2)
bubbles
are
common
during
carbon
capture,
utilization,
and
storage
(CCUS)
processes
have
many
impacts
on
water
conservancy
machinery,
metallurgy,
the
chemical
industry.
To
explore
dynamic
characteristics
of
CO2
in
different
liquids
CCUS,
motion
mechanism
was
integrated,
effects
liquid
external
conditions
were
classified
summarized.
At
same
time,
research
progress
numerical
simulation
bubble
dynamics
is
reviewed.
Therefore,
approaches
methods
that
can
be
further
explored
theoretical
analysis,
experimental
research,
proposed,
which
provide
reference
guidance
for
engineering
practice,
especially
CCUS
technologies.
European Journal of Sustainable Development Research,
Journal Year:
2022,
Volume and Issue:
6(2), P. em0181 - em0181
Published: Feb. 9, 2022
In
this
study,
the
removal
of
carbon
dioxide
(CO2)
that
has
a
huge
contribution
to
global
warming
from
gas
emissions
was
performed
using
absorption
method.
Effect
operational
parameters
such
as
temperature
and
flow
rate
on
capacity
(g
CO2/kg
solvent
mol
CO2/mol
MEA)
investigated
in
bubble
column
reactor
with
semi-batch
operation.
The
monoethanolamine
(MEA)
used
determined
at
different
rates
(2.5
5
L/min)
temperatures
(25-35-45
oC).
Because
capacities
74.71
g
CO2
/
kg
MEA
0.51
were
obtained
L
min
rate,
25oC
20%
concentration.
increases
decreases
increases.
it
can
be
concluded
capture
into
solution
successfully
achieved
high
capacity.
Separation and Purification Technology,
Journal Year:
2024,
Volume and Issue:
341, P. 126900 - 126900
Published: Feb. 24, 2024
Taylor
bubble
dynamic
characteristics
of
CO2
chemical
absorption
into
MEA
aqueous
solution
in
a
vertical
minichannel
were
systematically
investigated
this
study.
The
generation,
movement,
and
shrinkage
bubbles
the
visualized
monitored
using
high-speed
camera,
their
behaviors
characterized
by
image
analysis
method.
effects
gas
liquid
Re
numbers
absorbent
concentration
on
two-phase
flow
patterns,
generation
frequency,
initial
length,
length
decrease
rate,
velocity
examined
analyzed.
Results
showed
that
reaction-enhanced
mass
transfer
hindered
cap
penetration
main
channel,
alleviated
neck
thinning,
both
inhibiting
generation.
A
new
Damköhler
number
(Da)-based
correlation
has
been
proposed
to
predict
showing
good
prediction
accuracy
for
experimental
data
literature
different
absorbents.
also
before
formation
sphere
at
end
absorption,
an
approximate
linear
relationship
exists
between
rate
velocity,
with
slop
decided
reaction
could
be
Da
number.
Finally,
simple
model
developed
determine
effective
channel
given
operating
condition,
providing
design
guidelines
microchannel-based
miniaturized
absorbers.
