SSRN Electronic Journal,
Journal Year:
2022,
Volume and Issue:
unknown
Published: Jan. 1, 2022
Considerable
seawater
bittern
is
produced
during
salt
production.
Seawater
can
be
used
to
reduce
CO2
and
SOx
because
of
the
presence
valuable
mineral
ions,
such
as
K+
Mg2+,
which
react
with
carbonate
sulfate
ions
in
high
concentrations.
In
this
study,
a
novel
recovery
process
was
proposed
for
utilization.
The
has
following
steps:
(1)
metal
ion
separation
produce
KOH
Mg(OH)2;
(2)
capture
utilization
using
generated
(3)
KOH.
pay-back
period
(PBP)
calculated
verify
economic
feasibility
process.
results
revealed
an
efficiency
approximately
99%
98%,
respectively.
Furthermore,
annual
net
revenue
153,439
USD/y
based
on
profit
obtained
from
product
savings
absorbent.
Thus,
PBP
6.2
y.
Energy Conversion and Management,
Journal Year:
2022,
Volume and Issue:
277, P. 116587 - 116587
Published: Dec. 22, 2022
In
an
liquefied
natural
gas
(LNG)
power
plant,
the
amine
scrubbing
and
CO2
liquefaction
process
are
generally
employed
for
capture
storage
(CCS)
because
it
is
suitable
large-scale
plants.
However,
a
large
amount
of
hot
cold
energy
required
absorption,
regeneration
liquefaction.
As
solution,
waste
LNG
from
regasification
combined
cycle
(NGCC),
which
disposed
into
seawater,
can
be
recovered
utilized
abovementioned
purposes.
Hence,
this
study
suggested
novel
recovery
plants
CCS.
The
model
consists
following
four
steps:
regasification,
cycle,
model,
at
lean
cooler
in
each
heat
exchanger
process.
Furthermore,
regeneration,
NGCC
stripper
reboiler.
exergy
economic
analyses
were
addressed
to
evaluate
feasibility
conversion
proposed
result,
compared
base
process,
net
generation
efficiency
increased
by
16%
8%,
respectively.
addition,
profit
75%,
indicating
high
feasibility.
overall
using
observed
increase,
resulted
decreased
fuel
usage.
Therefore,
we
believe
that
approach
contribute
significantly
improvements
environmental
protection
efforts.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2022,
Volume and Issue:
10(40), P. 13325 - 13334
Published: Sept. 20, 2022
Plastic
waste
has
become
a
severe
threat
to
the
environment
as
increasing
amounts
of
plastic
are
generated
every
year.
To
solve
this
problem,
it
is
crucial
increase
recycling
rate
with
proper
sorting
and
processes.
However,
costs
vary
depending
on
specific
process,
CO2
inevitably
during
recycling.
Therefore,
study
developed
novel
multiobjective
optimization
model
based
mixed-integer
nonlinear
programming
optimize
processes
according
target
polymer
types
while
maximizing
net
profit
minimizing
emissions.
Recycling
solutions
were
proposed
using
nondominated
genetic
algorithm,
which
enabled
selection
portfolio
methods
for
each
type
importance
two
objectives:
maximum
minimum
total
As
result,
Pareto-optimal
distribution
35–1936
million
USD/year
emissions
9.7–17.0
kt/year
obtained.
Furthermore,
front
was
analyzed
provide
representative
optimal
solutions,
can
decision
makers
wide
range
choices
when
determining
process
specifications.
Renewable Energy,
Journal Year:
2023,
Volume and Issue:
210, P. 627 - 639
Published: April 20, 2023
Biomasses
are
known
for
their
variety
of
ash
systems,
often
accompanied
by
limiting
effects
such
as
fouling,
sintering,
slagging,
agglomeration
and
corrosion,
which
affect
thermochemical
conversion
processes
(combustion,
gasification,
pyrolysis
etc.).
To
explore
those
effects,
five
different
feedstocks
from
agricultural,
woody,
processed
biomasses
investigated
after
ashing
in
a
temperature
range
between
200
815
°C.
The
composition
specific
distribution
inside
the
particles
studied
using
X-ray
fluorescence
(XRF)
scanning
electron
microscopy
with
energy-dispersive
spectroscopy
(SEM-EDX).
Distinct
differences
detected
ashes
various
biomasses,
indicating
that
systems
can
be
homogeneous
(mainly
authigenic
origin)
or
heterogeneous
(with
significant
contributions
detrital/technogenic
origin).
Using
diffraction
(XRD),
formation
transformation
mineral
phases
monitored
produced
at
temperatures.
data
then
compared
to
results
calculations.
experimental
findings
agree
almost
completely
calculated
FactSage™
software
package.
In
connection
identified
phases,
release
behavior
main
alkali
species,
potassium,
is
function
temperature.
Based
on
these
ashes'
phase
observed
heterogeneity,
high-temperature
fusion
temperatures
(AFT)
interval
(AFI)
deformation
flow
ascertained.
Finally,
based
behavior,
biomasses'
potential
use
high
evaluated.
Desalination,
Journal Year:
2022,
Volume and Issue:
540, P. 115995 - 115995
Published: Aug. 4, 2022
Considerable
seawater
bittern
is
produced
during
salt
production.
Seawater
can
be
used
to
reduce
CO2
and
SOx
because
of
the
presence
valuable
mineral
ions,
such
as
K+
Mg2+,
which
react
with
carbonate
sulfate
ions
present
in
high
concentrations.
In
this
study,
a
novel
recovery
process
proposed
for
utilization.
The
has
following
steps:
(1)
metal
ion
separation
produce
KOH
Mg(OH)2;
(2)
capture
utilization
using
generated
(3)
KOH.
pay-back
period
(PBP)
was
calculated
verify
economic
feasibility
process.
results
revealed
an
efficiency
approximately
99
%
98
%,
respectively.
Furthermore,
annual
net
revenue
153,439
USD/y
based
on
profit
obtained
from
product
savings
absorbent.
Thus,
PBP
6.2
y.
Journal of Cleaner Production,
Journal Year:
2022,
Volume and Issue:
367, P. 133048 - 133048
Published: July 11, 2022
In
the
pulping
process,
recovery
boiler
produces
"green"
steam
without
use
of
fossil
fuels
as
it
burns
biomass
(black
liquor).
However,
because
black
liquor
concentration
generated
during
woodchip
cooking
is
not
suitable
for
combustion,
concentrated
using
an
evaporator
that
uses
a
large
amount
energy
evaporation.
The
sprayed
to
burn
in
furnace,
and
combustion
air
simultaneously
supplied
through
distribution
system.
Biomass
should
be
optimized
realize
sustainable
cleaner
production
by
maximizing
recycling
efficiency.
this
study,
optimal
operating
conditions
system
pulp
mill
were
determined
efficiency
maximization.
First,
process
model
was
developed
integrating
furnace
with
Using
model,
consumption
evaporator,
generation
boiler,
recycled
chemicals
predicted
profit
cost
estimation.
Second,
mathematical
derive
conditions.
net
calculated
subtracting
evaporation
from
recovered
chemicals.
Finally,
maximize
profit.
As
result,
derived
increased
annual
power
7,491
MWh/y
68,602
t/y.
addition,
11.82%,
CO2
emissions
decreased
2,504
1,361
tons,
making
more
sustainable.
findings
study
promote
substituting
International Journal of Energy Research,
Journal Year:
2024,
Volume and Issue:
2024, P. 1 - 21
Published: May 27, 2024
In
liquefied
natural
gas
(LNG)
power
plants,
a
significant
amount
of
heat
and
cold
energy
is
consumed
to
capture
store
carbon
dioxide
(CO
2
)
emitted
during
the
combustion
fossil
fuels.
The
proposed
system
addresses
this
problem
by
utilizing
temperature
difference
between
waste
as
source
generate
electricity.
study,
novel
recovery
for
postcombustion
LNG
plant
was
developed
using
an
organic
Rankine
cycle
(ORC).
To
design
system,
process
model
with
following
five
parts:
(i)
vaporization,
(ii)
combined
(NGCC),
(iii)
amine
scrubbing,
(iv)
CO
liquefaction,
(v)
injection.
used
lean
cooling
liquefaction.
pressurized
meet
injection
pressure
requirements.
ORC
uses
high-temperature
exhaust
from
NGCC
high-pressure
sink.
economic
feasibility
demonstrated
assessment,
net
profit
evaluated
sensitivity
analysis
considering
variations
in
water,
electricity,
equipment
costs.
Consequently,
exhibited
18.6%
increase
production
compared
conventional
system.
addition,
76.7%
confirming
its
feasibility.
Energies,
Journal Year:
2022,
Volume and Issue:
16(1), P. 362 - 362
Published: Dec. 28, 2022
The
problem
of
biomass
combustion
and
co-combustion
is
a
particularly
important
aspect
many
district
heating
systems,
where
the
use
makes
it
possible
to
reduce
CO2
emissions.
present
article
continuation
previous
studies
behavior
mineral
matter
selected
fuels
during
sintering
processes.
Three
biomasses
were
studied:
wheat
straw,
barley
straw
rye
as
well
two
coals
from
Polish
mines:
bituminous
coal
lignite.
study
included
ultimate
proximate
analyses
oxide
analysis.
On
basis
analysis
using
FactSage
8.0.
software,
process
ash
was
simulated.
In
particular,
content
slag
phase
values
specific
heat
cp
density
determined
without
considering
gas
phase.
obtained
results
compared
with
measurements
fracture
stress
(mechanical
method)
pressure
drop
(pressure
test)
samples.
showed
that
there
fairly
pronounced
correlation
between
temperatures
by
mechanical
test
physical
properties
ashes,
such
capacity,
chemical
properties,
i.e.,
completed
research
work
indicates
confirms
nonstandard
methods
studying
are
very
promising
because
they
directly
reflect
biofuels
in
systems.
