Renewable Energy,
Journal Year:
2023,
Volume and Issue:
219, P. 119466 - 119466
Published: Oct. 14, 2023
This
paper
aims
to
validate
a
demo
scale
plant
scrubber
technology
through
experimental
campaign
and
development
of
digital
twin.
Thus,
it
is
useful
evaluate
the
H2S
absorption
process
in
biogas
production
for
analysis
optimization
purposes.
The
absorber
unit
removes
chemical
via
sodium
hydroxide
(NaOH)
as
wet
agent
(30%
w/w).
column
treats
300
Nm3/h
biogas,
whose
inlet
concentration
ranges
from
1000
3000
ppm.
Field
measurements
are
conducted
investigate
removal
efficiency.
An
dataset
collected,
processed
used
input
on
Aspen
PLUS
suite
develop
model
helpful
generate
large
simulate
operating
conditions
different
demo-scale
plant.
simulation
then
exploited
perform
sensitivity
figure
out
main
variables
influencing
Operating
such
concentration,
soda
flowrate,
temperature,
freshwater
flowrate
perturbed
analysis.
NaOH
its
with
biggest
impact
process.
In
detail,
highest
efficiency
performance
was
obtained
using
50%
solution
higher
than
8
kg/h.
ACS Omega,
Journal Year:
2022,
Volume and Issue:
7(42), P. 37328 - 37339
Published: Oct. 13, 2022
Recently,
high
sulfur
content
in
diesel
fuel
is
one
of
the
main
problems
that
have
an
effect
on
combustion
and
emission
characteristics.
Iraq
many
countries
world
use
with
content.
Therefore,
partially
premixed
ignition
(PPCI)
concept
different
blend
ratios
gasoline-diesel
(GD30,
GD40,
GD50)
were
suggested
this
study
to
reduce
fuel,
improve
engine
performance,
exhaust
emissions.
The
combined
adding
gasoline
manipulating
injection
timings
can
lead
better
clean
combustion.
For
same
operating
conditions,
it
found
brake
thermal
efficiency
(BTE)
decreases
during
GD
blends
comparison
fuel.
Furthermore,
results
using
showed
a
small
reduction
brake-specific
consumption
(BSFC)
compared
conventional
gas
temperature
reduces
from
combination
PPCI
mode
blends,
which
turn
NO
x
concentration
under
variable
conditions
loads
speeds.
It
indicated
emissions
significantly
decreased
GD30,
GD50
by
25.94,
50.9,
84%,
respectively,
In
addition,
higher
CO
HC
formation
was
obtained
blends.
number
PM
reduced
more
when
mode.
average
particle
diameter
(dp)
varied
25
26
nm
those
35
36
conditions.
Reducing
contributed
clear
SO2
H2S
57.85
50.12%,
respectively.
Energies,
Journal Year:
2023,
Volume and Issue:
16(15), P. 5713 - 5713
Published: July 31, 2023
Natural
gas,
an
important
source
of
hydrogen,
is
expected
to
be
crucial
in
the
transition
a
hydrogen-based
economy.
The
landscape
gas
processing
industry
set
change
near
future
with
development
highly
acidic
sour
wells.
purification
constitutes
major
share
separation
membrane
market,
and
shift
low-quality
wells
has
been
mirrored
trends
material
research.
Purification
also
portion
cost
natural
posing
implications
for
hydrogen
production.
This
review
provides
update
on
current
state
research
regarding
polymeric
membranes
H2S
removal,
along
CO2
separation,
from
that
used
production
via
steam
methane
reforming.
challenges
adapting
ternary
H2S/CO2/CH4
separations
are
discussed
detail.
Key
materials
highlighted,
prospects
their
application
removal
evaluated.
Finally,
growing
interest
H2
discussed.
Advances
emergence
new
may
significantly
improve
commercial
viability
such
processes.
Applied Thermal Engineering,
Journal Year:
2021,
Volume and Issue:
195, P. 117166 - 117166
Published: June 5, 2021
Glass
furnaces
represent
a
continuous
challenge
for
CFD
simulations,
which
is
attributed
to
the
complex
description
of
multiple
phases:
turbulent
gas
phase,
raw
materials
from
solid
glass
batch
and
laminar
liquid
phase
melt.
Prevalence
unsuitable
oxy-fuel
combustion
models,
like
eddy-dissipation
model,
lack
advanced
coupling
methods
chamber
tank
domains
have
been
identified
as
research
gaps
in
furnace
simulations.
These
are
tackled
3D
simulation
model
an
with
electric
boosting
by
introducing
two
significant
improvements
compared
previous
approaches:
(1)
The
partially-premixed
steady
diffusion
flamelet
combination
skeletal25
reaction
mechanism
was
used
modelling.
(2)
An
iterative
coupled
method
presented,
introduces
damping
solution
rigorous
termination
condition.
By
employing
presented
respective
temperatures
were
predicted
within
less
than
1.93%
3.81%
experimental
data.
