Processes,
Год журнала:
2024,
Номер
12(9), С. 1801 - 1801
Опубликована: Авг. 24, 2024
To
address
the
high
energy
consumption
of
carbon
capture
and
storage
process
in
shipping
industry,
effects
several
commonly
used
commercial
catalysts,
such
as
HZSM-5-25,
γ-Al2O3,
SiO2,
well
a
self-prepared
catalyst,
Zr-HZSM-5-25,
on
regeneration
MEA
solution
+
MDEA
mixed
were
investigated
this
paper.
The
results
showed
that
Zr-HZSM-5-25
had
best
catalytic
effect
aqueous
solution,
which
could
increase
instantaneous
maximum
CO2
rate
MEA-rich
by
about
8.25%
average
5.28%.
For
reaction
between
tertiary
amine
produced
large
amount
HCO3−
system,
accelerate
release
to
extent,
resulted
catalyst
being
significantly
lower
than
single
with
an
4.91%
rate.
This
was
only
increased
4.91%.
While
better
performance
bench-scale
test,
it
reduced
7.3%.
Chemical Engineering Journal,
Год журнала:
2024,
Номер
498, С. 155407 - 155407
Опубликована: Сен. 1, 2024
International
shipping
has
extended
its
decarbonization
strategy
to
reduce
greenhouse
gas
emissions
beyond
onboard
CO2
emissions.
Onboard
carbon
capture
and
storage
systems
are
being
investigated
as
a
potential
solution
for
fossil-fueled
ships,
however
there
is
lack
of
knowledge
on
the
reduction
well-to-wake
that
could
be
enabled.
Considering
ambitious
emission
targets,
this
may
lead
inaccurate
estimations
future
fuel
mix
in
maritime
sector
market
share
marine
engines.
This
study
defines
nine
ship
propulsion
scenarios
based
combinations
fossil
fuels
To
better
understand
capture,
calculates
intensity
each
scenario
with
without
from
ship's
main
engine(s).
Deploying
notably
reduces
tank-to-wake
(54–68
%
depending
scenario).
Contrary
emissions,
oil-fueled
ships
found
less
intensive
more
cost-effective
than
LNG-fueled
ships.
The
four-stroke
engine
achieves
lowest
38.31
gCO2eq/MJ,
while
highest
50.34
gCO2eq/MJ.
levels
enabled
by
would
allow
comply
FuelEU
Maritime
requirement
until
2044.
compliant
subsequent
periods,
will
need
consider
auxiliary
boiler
generator
higher
rate,
well
measures
upstream
production
transport.
Frontiers in Marine Science,
Год журнала:
2025,
Номер
12
Опубликована: Фев. 7, 2025
Climate
change
poses
a
global
challenge
related
to
the
reduction
of
pollutant
atmospheric
emissions
and
maritime
transportation
sector
is
directly
involved,
due
its
significant
impact
on
production
Greenhouse
Gases
other
substances.
While
established
technologies
have
effectively
targeted
like
Nitrogen
Oxides
(NO
X
)
Sulfur
(SO
),
persistence
Carbon
dioxide
(CO
2
represents
an
ongoing
concern.
Novel
targeting
CO
been
lately
studied
proposed
for
inland
applications,
are
now
being
developed
applications.
With
this
regard,
present
study
explores
potential
Capture
Systems
(CCS)
mitigate
produced
by
cargo
ships.
implementation
CCS
faces
challenges,
including
space
limitations
logistical
complexities,
possible
integration
onboard
marks
step
in
fight
against
climate
change.
The
authors
propose
innovative
approach
using
Calcium
Hydroxide
Ca(OH)
based
CCS,
offering
dual
benefit
resolution
ocean
acidification
through
carbonate
(CaCO
3
final
product
resulting
from
capture
process.
Additionally,
examines
feasibility
generated
reuse
industry,
promoting
circular
economy
addressing
environmental
issues.
This
solution
underscores
urgent
need
transformative
measures
reduce
emissions,
line
with
efforts
safeguarding
marine
environment
combat
Journal of Cleaner Production,
Год журнала:
2024,
Номер
470, С. 143343 - 143343
Опубликована: Авг. 6, 2024
Limiting
the
carbon
intensity
of
maritime
transport
is
crucial
to
meet
2050
net-zero
targets.
Onboard
capture
and
storage
(OCCS)
offers
a
practical
short-term
solution
for
reducing
shipping-related
CO2
emissions
until
cleaner
technologies
are
ready
large-scale
adoption.
This
study
introduces
an
innovative
multi-objective
approach
integrate
sustainability
into
conceptual
design
decision-making
phases
OCCS.
A
systematic
technology
screening
identified
possible
OCCS
solutions,
which
were
then
assessed
onboard
feasibility.
Specific
indicators
defined
evaluate
performance
based
on
technological,
economic,
environmental,
social
criteria,
aggregated
perspectives.
Using
fossil
fuel-powered
cruise
ship
as
case
study,
results
benchmarked
against
zero-carbon
alternatives.
Among
alternatives
considered,
chemical
absorption
by
amine
scrubbing
(AS)
advanced
cryogenic
(A3C)
appeared
only
feasible
solutions
considering
energy
requirements.
The
emerging
A3C
concept
resulted
in
being
outperformed
benchmark
AS,
primarily
due
environmental
impact
1.5
times
higher.
All
alternative
technologies,
whether
OCCS-
or
fuel-based,
found
be
more
sustainable
than
baseline
fuel-based
engine,
lowering
at
least
61%.
Hydrogen
marine
fuel
leads
most
promising
scenario
future
shipping
operations,
footprint
up
76%.
robustness
proposed
method
was
confirmed
probabilistic
Monte
Carlo
sensitivity
analysis.
Overall,
obtained
can
guide
toward
informed
policies
promoting
propulsion
systems.
Frontiers in Environmental Science,
Год журнала:
2024,
Номер
12
Опубликована: Сен. 26, 2024
The
effects
of
global
climate
change
have
accelerated
the
melting
glaciers
and
decline
sea
ice
coverage
in
Arctic.
In
tandem
with
advancements
icebreaker
other
shipping
technologies,
navigability
Arctic
routes
has
dramatically
improved.
Given
geographical
advantages
region
terms
resource
potential,
various
countries
implemented
initiatives
to
secure
a
foothold
industry.
However,
current
industry
not
yet
achieved
ideal
state
net-zero
emissions,
rapid
increase
brought
serious
even
irreversible
negative
impacts
on
environment.
study
employs
document
policy
analyses
conduct
an
in-depth
examination
legal
documents
related
shipping,
especially
those
from
past
5
years,
systematically
outlining
relevant
frameworks,
as
well
their
historical
context.
At
same
time,
interdisciplinary
research
methods
are
utilized
comprehensively
assess
new
challenges.
It
is
concluded
that
against
backdrop
region’s
unique
fragile
environment,
International
Maritime
Organization
(IMO)
Council
introducing
increasingly
stringent
regulations
for
posing
complex
array
challenges
Not
only
must
it
navigate
mounting
pressure
emission
reduction
policies
intensifying
public
scrutiny
but
also
overcome
multitude
technical
operational
hurdles.
Consequently,
joint
efforts
international
community
essential
promote
sustainable
development
goals
Progress in Energy,
Год журнала:
2024,
Номер
7(1), С. 013002 - 013002
Опубликована: Ноя. 8, 2024
Abstract
Carbon
dioxide
capture,
transport,
and
storage
(CCS)
is
essential
in
achieving
the
net-zero
target.
Despite
this
increasing
recognition,
current
CCS
deployments
are
far
behind
targeted
ambitions.
A
key
reason
that
often
perceived
as
too
expensive.
While
assessments
of
costs
have
traditionally
looked
at
impact
plant
level,
present
study
seeks
to
understand
environmental
benefits
will
be
passed
consumers
via
end-products
services.
In
particular,
nine
end-products/services
(bridge
construction,
electricity
from
onshore
wind
power,
offshore
transport
a
container
ship,
magazine,
production
an
avocado,
beer
can,
waste
treatment
waste-to-energy,
long-distance
air
travel)
connected
ten
potential
areas
application
for
(cement
production,
iron
steel
oil
gas
natural
processing,
refining,
ship
propulsion
engines,
pulp
paper
urea
direct
capture).
The
evaluations
highlight
significant
emission
reductions
(beyond
50%)
could
achieved
marginal
end-users
six
end-products/services:
bridge
by
treatment.
Moderate
(between
11
37%)
two
cases
virtually
no
cost
(increase
below
1%):
can
avocado
production.
Finally,
only
case
using
capture
compensate
emissions
travel
was
found
raise
significantly.
Although
more
research
still
needed
area,
work
broadens
our
understanding
real
provides
useful
insights
decision-makers
society.
