Journal of Energy Storage,
Год журнала:
2023,
Номер
62, С. 106921 - 106921
Опубликована: Фев. 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.
International Journal of Hydrogen Energy,
Год журнала:
2023,
Номер
50, С. 19 - 35
Опубликована: Июль 12, 2023
Underground
Hydrogen
Storage
(UHS)
in
porous
media
appears
to
be
a
promising
means
for
large-scale
hydrogen
storage,
underpinning
the
full-scale
of
supply
chain
development.
Hydrogen-brine-rock
interactions
play
an
important
role
conversion
and
contamination
during
cycling
process.
While
redox
reaction
triggered
by
injected
H2
pre-existing
O2
is
unique
UHS
compared
other
types
gas
subsurface
few
research
have
been
done
understand
reactions
solubility,
pH,
fewer
works
looked
beyond
its
process
on
contamination,
which
may
affect
stored
purity
storage
efficiency.
In
this
context,
we
examined
hydrogen-brine-minerals
(e.g.,
calcite,
siderite,
quartz
pyrite)
as
function
dissolved
oxygen
concentration
(from
5.5
5500
ppm),
temperature,
pressure
through
geochemical
modelling
using
solver
PHREEQC.
Our
results
showed
that
increasing
from
ppm
resulted
negligible
impact
solubility
pH
all
tested
minerals.
As
sensitive
minerals,
siderite
calcite
can
react
with
process,
leading
up
certain
loss
at
20
MPa,
respectively.
Meanwhile,
pyrite
are
insensitive
minerals
hydrogen,
causing
less
than
0.2%
same
condition.
indicate
mineral
oxidation
due
formation
brine
played
H2-brine-rock
interactions.
The
also
carbonate
such
act
electron
acceptors,
dissociation
thus
formed
strong
reduction
environment
based
PHREEQC
database.
This
likely
causes
measurable
associated
abiotic
lifetime
underground
operation.
Taken
together,
suggest
clean
standstone
reservoirs
will
signifcantly
reduce
perspective.
Journal of Energy Storage,
Год журнала:
2023,
Номер
62, С. 106921 - 106921
Опубликована: Фев. 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.
