Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 7, 2025
Escalating
carbon
dioxide
(CO2)
emissions
have
intensified
the
greenhouse
effect,
posing
a
significant
long-term
threat
to
environmental
sustainability.
Direct
air
capture
(DAC)
has
emerged
as
promising
approach
achieving
net-zero
future,
which
offers
several
practical
advantages,
such
independence
from
specific
CO2
emission
sources,
economic
feasibility,
flexible
deployment,
and
minimal
risk
of
leakage.
The
design
optimization
DAC
sorbents
are
crucial
for
accelerating
industrial
adoption.
Metal-organic
frameworks
(MOFs),
with
high
structural
order
tunable
pore
sizes,
present
an
ideal
solution
strong
guest-host
interactions
under
trace
conditions.
This
perspective
highlights
recent
advancements
in
using
MOFs
DAC,
examines
molecular-level
effects
water
vapor
on
capture,
reviews
data-driven
computational
screening
methods
develop
molecularly
programmable
MOF
platform
identifying
optimal
sorbents,
discusses
scale-up
cost
DAC.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 11, 2025
Growing
demand
for
air
travel
and
limited
scalable
solutions
pose
significant
challenges
to
the
mitigation
of
aviation's
climate
change
impact.
Direct
capture
(DAC)
may
gain
prominence
due
its
versatile
applications
either
carbon
removal
(direct
storage,
DACCS)
or
synthetic
fuel
production
utilization,
DACCU).
Through
a
comprehensive
time-dynamic
techno-economic
assessment,
we
explore
conditions
fuels
from
DACCU
become
cost-competitive
with
an
emit-and-remove
strategy
based
on
DACCS
under
2050
CO
Nature Chemical Engineering,
Год журнала:
2024,
Номер
1(3), С. 208 - 215
Опубликована: Март 5, 2024
Water
plays
a
pivotal
role
in
direct
air
capture
technologies,
impacting
materials,
regeneration
processes
and
product
streams.
CO2
removal
methods,
including
absorption,
adsorption
electrochemical
techniques,
encounter
challenges
associated
with
water,
thus
reducing
their
efficacy.
fluxes
into
out
of
aqueous
solvents
affect
the
concentration
overall
performance.
Solid
adsorbents
co-adsorb
water
greater
quantities
than
will
require
effective
strategies
to
address
substantial
energy
penalty
desorption
each
cycle.
Water-management
are
imperative
for
economic
viability
minimizing
environmental
impact,
but
high
intensity
necessitates
heat
recovery
techniques.
Feed
dehydration
can
be
combined
strategic
integration
process
streams
standard
techniques
front-end
management.
For
back-end
approaches,
mechanical
vapor
compression
is
viable
solution
coupling
management,
we
highlight
potential
benefits
three
implementation
methods.
Further
research
variable
climate
conditions
quality
impacts
essential
success
technologies.
management
crucial
enhancing
impact
(DAC)
This
Perspective
discusses
several
DAC
processes.
MRS Energy & Sustainability,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 9, 2024
Abstract
Amid
a
relentless
global
climate
crisis,
the
28th
Conference
of
Parties
(COP28)
spotlighted
Direct
Air
Carbon
Capture
(DACC)
as
key
intervention
to
mitigate
escalating
temperatures
and
CO
2
levels.
The
Intergovernmental
Panel
on
Climate
Change
(IPCC)
underscores
urgency
this
challenge,
stipulating
need
for
robust
removal
strategies.
It
sets
daunting
yet
crucial
target:
capture
85
million
metric
tons
by
2030,
980
2050,
achieve
net-zero
emissions
(IEA,
Executive
Summary—Direct
2022—Analysis.
https://www.iea.org/reports/direct-air-capture-2022/executive-summary
).
Despite
imperative,
existing
19
operational
DAC
facilities
globally
face
significant
barriers,
including
prohibitive
costs
stringent
regulations,
which
impede
their
large-scale
application
(Ozkan
et
al.).
Current
status
pillars
direct
air
technologies.
Iscience
(2022).
While
COP28
stopped
short
delineating
definitive
roadmap
DAC,
article
addresses
vital
aspect
technology:
processes’
substantial
energy
heat
requirements,
are
integral
efficiency
economic
viability.
This
illuminates
pathways
future
technological
evolution
cost
optimization
through
an
in-depth
analysis
these
thereby
charting
course
toward
more
effective
scalable
infrastructure.
Graphical
abstract
Highlights
With
atmospheric
exceeding
420
ppm,
clock
is
ticking
crisis.
offers
revolutionary
approach
directly
remove
excess
,
acting
critical
tool
in
our
fight
sustainable
future.
However,
current
systems
challenge
high
consumption.
Continuous
fan
operation
intake
sorbent
material
regeneration,
consuming
nearly
2000–3000
kWh
per
ton
captured,
major
contributors.
Optimizing
processes
crucial.
Advancements
efficiency,
system
design
that
minimizes
parasitic
losses,
seamless
integration
with
renewable
sources
slashing
DAC’s
demands.
By
reducing
its
carbon
footprint
enhancing
viability,
advancements
can
unlock
full
potential
become
game-changer
combating
change
securing
cleaner
planet.
Discussion
Given
requirements
DACC
processes,
what
innovations
necessary
make
efficient
economically
viable?
Considering
demands
most
promising
avenues
enhance
technology's
scalability
cost-effectiveness?
How
limitations
be
overcome
scale
up
effectively?
What
role
could
play
meeting
facilities,
how
might
impact
overall
process?
do
technologies
influence
location
infrastructure
needs,
particularly
relation
sinks?
or
currently
being
explored
optimize
challenges
they
terms
implementation
scaling?
achieving
targets,
policy
regulatory
frameworks
designed
support
development
deployment
energy-efficient
solutions?
Energy & Environmental Science,
Год журнала:
2024,
Номер
17(13), С. 4544 - 4559
Опубликована: Янв. 1, 2024
A
direct
air
capture
(DAC)
economic
model
that
accounts
for
sorbent
degradation
is
developed.
Experimentally-measured
parameters
are
then
integrated
to
identify
and
process
features
minimize
both
the
DAC
carbon
footprint
cost.
