Open Journal of Social Sciences,
Journal Year:
2022,
Volume and Issue:
10(13), P. 252 - 267
Published: Jan. 1, 2022
The
aim
of
this
scientific
contribution
is
to
show
a
statistical
analysis
the
manufacturing,
trade
and
services
textile
industry
in
Ecuador,
between
years
2000
2020.
To
achieve
objective,
an
exhaustive
study
Scopus
international
database
Ecuadorian
government
called
National
Institute
Statistics
Censuses
(by
its
acronym
Spanish
INEC).
This
research
provided
following
lines
results:
1)
Bibliometric
Ecuador;
2)
Statistical
3)
Preferences
market.
fundamental
conclusion
that:
Manufacturing
activities
have
11,006
establishments,
which
74.2%
correspond
manufacture
clothing,
except
leather
clothing.
Total
employed
personnel
related
sector
amounts
115,937
people,
68,215
are
women
47,722
men.
In
last
11
years,
has
maintained
average
share
1%
2%
total
GDP,
according
data
from
Central
Bank
Ecuador.
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.
Desalination,
Journal Year:
2022,
Volume and Issue:
548, P. 116284 - 116284
Published: Dec. 2, 2022
Steam
methane
reforming
(SMR)
process
is
facing
serious
greenhouse
effect
problems
because
of
the
significant
CO2
emissions.
To
reduce
pollution
caused
by
gaseous
emissions,
desalination
wastewater
can
be
used
it
contains
highly
concentrated
useful
mineral
ions
such
as
Ca2+,
Mg2+,
and
Na+,
which
react
with
carbonate
ions.
This
study
proposes
a
novel
SMR
for
carbon-neutral
hydrogen
production
integrated
wastewater-based
utilization.
A
model
design
proposed;
comprises
following
steps:
(1)
production;
(2)
recovery
In
model,
from
was
captured
using
Na+
ion,
ionic
carbonated
Ca2+
Mg2+
in
wastewater.
The
levelized
cost
(LCOH)
assessed
to
demonstrate
economic
feasibility
proposed
process.
Therefore,
94.5
%
captured,
conversion
MgCO3
CaCO3
determined
60
99
%,
respectively.
addition,
emission
via
0.016
kgCO2/kgH2,
LCOH
calculated
2.6
USD/kgH2.
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.
The
electrification
of
process
industries
is
one
the
main
challenges
when
building
a
low-carbon
society
since
they
consume
huge
amounts
fossil
fuel
generating
different
emissions.
Heat
pumps
are
instruments
to
perform
industrial
sector
carbon-neutral
market
players.
This
paper
proposes
an
approach
improve
economic
feasibility
heat
within
plants.
Initial
energy
targeting
with
Grand
Composite
Curves
was
used
and
supplemented
detailed
design
evaporator
compressor
for
condensation
evaporation
pressures.
trade-off
between
capital
cost
pump
electricity
investigated
optimal
configurations
were
selected.
case
study
investigates
gas
fractioning
unit
polymer
plant
where
three
integrated
into
distillation
columns.
results
demonstrated
that
recovery
174
MW
requires
additional
37.9
reduce
hot
utility
by
212
MW.
selection
pressure
allows
saving
21.5
M€/y
7
years
operation.
Energies,
Journal Year:
2024,
Volume and Issue:
17(4), P. 951 - 951
Published: Feb. 18, 2024
The
electrification
of
process
industries
is
one
the
main
challenges
when
building
a
low-carbon
society
since
they
consume
huge
amounts
fossil
fuels,
generating
different
emissions.
Heat
pumps
are
some
key
players
in
industrial
sector
carbon-neutral
market.
This
study
proposes
an
approach
to
improve
economic
feasibility
heat
within
plants.
Initial
energy
targeting
with
grand
composite
curves
was
used
and
supplemented
detailed
design
evaporator
compressor
for
condensation
evaporation
pressures.
trade-off
between
capital
cost
pump
electricity
investigated,
optimal
configurations
were
selected.
case
investigates
gas
fractioning
unit
polymer
plant,
where
three
integrated
into
distillation
columns.
results
demonstrate
that
recovery
174
MW
requires
additional
37.9
reduce
hot
utility
by
212
MW.
selection
pressures
allows
21.5
M
EUR/y
be
saved
7
years
plant
operation.
emission-saving
potential
estimated
at
1.89
ktCO2/y.
Energies,
Journal Year:
2023,
Volume and Issue:
16(17), P. 6370 - 6370
Published: Sept. 2, 2023
The
potential
for
recovering
heat
from
wastewater
exists
at
various
stages,
including
generation,
transport,
and
treatment.
As
a
result,
technologies
thermal
energy
recovery
are
now
successfully
employed
in
many
countries.
In
order
to
synthetically
present
the
current
state
of
knowledge
on
wastewater,
bibliometric
analysis
previously
published
studies
indexed
Web
Science
database
was
performed.
review
further
extended
with
strategic
SWOT
SOAR
analyses
identify
internal
external
factors
determining
competitive
advantage
weaknesses
related
use
exchangers
pumps.
These
indicated
need
research
possibilities
as
this
technology,
both
building
level
larger
scale,
contributes
implementation
sustainable
development
goals,
especially
terms
improving
efficiency
reducing
CO2
emissions.
Particular
emphasis
should
be
placed
into
warm
together
other,
better
known
accepted,
renewable
sources.
It
is
also
important
continuously
educate
public
promote
levels,
well
increase
involvement
legislators
other
stakeholders.
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.
