Journal of Energy Storage,
Journal Year:
2023,
Volume and Issue:
62, P. 106921 - 106921
Published: Feb. 24, 2023
The
geological
sequestration
of
carbon
dioxide,
including
mineralization
in
basaltic
formations,
has
been
identified
as
a
promising
method
attaining
low-carbon
economy.
However,
successful
CO2
storage
depends
on
both
the
wettability
rocks
and
basalt
rock-fluid
interfacial
interactions.
contact
angles
brine/CO2
systems
for
Western
Australian
(WA)
Iceland
basalts
have
recently
reported
literature.
angle
datasets
evaluating
Saudi
Arabian
(SA)
not
previously
reported.
Moreover,
there
is
limited
information
impact
organic
acids
basalt/CO2/brine
system.
In
present
study,
supercritical
CO2/brine
SA
are
measured
at
temperatures
298
323
K,
various
pressures
0.1–20
MPa
absence
presence
acid
(10−2
mol/L
stearic
acid).
Various
analytical
methods
used
to
characterize
surface,
wetting
behavior
compared
with
that
WA
basalts.
quantity
can
be
safely
trapped
underneath
(in
terms
column
height)
then
computed
from
experimental
data.
At
highest
tested
temperature
pressure
(20
K),
pure
found
remain
strongly
water-wet,
advancing
(θa)
receding
(θr)
46.7°
43.2°,
respectively,
whereas
becomes
moderately
water-wet
(θa
=
85.1°
θr=81.8°),
CO2-wet
103.6°
θr=96.1°).
organic-aged
attains
state
106.8°
θr
95.2°).
addition,
height
higher
than
Further,
decreases
835
m
5
−957
20
MPa.
These
results
suggest
could
freer
plumb
lateral
movement
into
acid,
thus
resulting
lower
residual
mineral
trapping
capacities,
fewer
eventual
leakages
CO2,
across
formation.
Journal of Energy Storage,
Journal Year:
2023,
Volume and Issue:
62, P. 106865 - 106865
Published: Feb. 15, 2023
The
substitution
of
fossil
fuel
with
clean
hydrogen
(H2)
has
been
identified
as
a
promising
route
to
achieve
net
zero
carbon
emissions
by
this
century.
However,
enough
H2
must
be
stored
underground
at
an
industrial
scale
objective
due
the
low
volumetric
energy
density
H2.
In
storage,
cushion
gases,
such
methane
(CH4),
are
required
maintain
safe
operational
formation
pressure
during
withdrawal
or
injection
wetting
characteristics
geological
formations
in
presence
H2,
gas,
and
resultant
gas
mixture
mixing
zone
between
them
essential
for
determining
storage
capacities.
Therefore,
present
work
measured
contact
angles
four
Jordanian
oil
shale
rocks
CH4,
H2-CH4/brine
systems
their
interfacial
tension
(IFT)
(geo-storage)
conditions
(pressures
0.1
1600
psi
temperature
323
K)
evaluate
residual
structural
trapping
potential
efficiency
CH4
gas.
Various
analytical
methods
were
employed
comprehend
bulk
mineralogy,
elemental
composition,
topographic
characterization,
functional
groups,
surface
properties
rocks.
total
organic
(TOC)
effect
on
wettability
was
demonstrated
compared
previous
studies.
samples
high
ultrahigh
TOC
13
%
18
exhibited
brine
advancing/receding
angles.
rock
became
hydrophobic
highest
experimental
(1600
K).
rock/CH4/brine
higher
than
rock/H2/brine
angles,
remained
those
pure
gases.
Moreover,
IFT
displayed
inverse
trend,
where
H2/brine
CH4/brine
IFT.
results
suggest
that
geo-storage
tested
organic-rich
source
could
favorable
when
is
used
consistent
studies
using
synthetically
acid-aged
samples.
For
first
time,
from
more
realistic
situation
influence
missing
material
H2/brine/rock
geo-storage.
Materials Today Advances,
Journal Year:
2023,
Volume and Issue:
19, P. 100387 - 100387
Published: June 24, 2023
Mg-based
solid
hydrogen
storage
materials
have
advantages
such
as
high
capacity,
safety
and
reliability,
low
price,
abundant
magnesium
resources.
They
are
considered
a
material
with
great
application
potential,
however,
their
slow
absorption/desorption
rate,
temperature,
relatively
activation
energy
enthalpy
limit
in
the
field
of
energy.
Aiming
at
current
research
on
home
abroad,
this
paper
summarizes
improvement
methods
materials,
focusing
effects
addition
transition
metal
catalysts
carbon
composite
catalysts,
well
construction
alloying,
nanocrystallization,
systems
desorption
mechanism,
microstructure,
dynamic/thermodynamic
properties
materials.
Finally,
results
summarized,
development
trend
main
challenges
magnesium-based
been
prospected.
Journal of Energy Storage,
Journal Year:
2024,
Volume and Issue:
84, P. 110927 - 110927
Published: Feb. 17, 2024
The
inherent
intermittency
of
renewable
energy
sources
frequently
leads
to
variable
power
outputs,
challenging
the
reliability
our
supply.
An
evolving
approach
mitigate
these
inconsistencies
is
conversion
excess
into
hydrogen.
Yet,
pursuit
safe
and
efficient
hydrogen
storage
methods
endures.
In
this
perspective
paper,
we
conduct
a
comprehensive
evaluation
potential
lined
rock
caverns
(LRCs)
for
storage.
We
provide
detailed
exploration
all
system
components
their
associated
challenges.
While
LRCs
have
demonstrated
effectiveness
in
storing
various
materials,
suitability
remains
largely
uncharted
territory.
Drawing
from
empirical
data
practical
applications,
delineate
unique
challenges
entailed
employing
Additionally,
identify
promising
avenues
advancement
underscore
crucial
research
directions
unlock
full
applications.
foundational
infrastructure
risks
large-scale
within
necessitate
thorough
examination.
This
work
not
only
highlights
but
also
prospects,
with
aim
accelerating
realization
innovative
technology
on
practical,
field-scale
level.
