Water,
Год журнала:
2023,
Номер
15(23), С. 4062 - 4062
Опубликована: Ноя. 23, 2023
This
study
reports
the
continuous
production
of
H2
from
wastewater
effluent
biodiesel
industry
in
a
medium
containing
water
under
supercritical
conditions.
The
effects
temperature
and
feed
flow
rate
on
generation
hydrogen
were
evaluated
optimized.
At
700
°C
17.5
mL/min
flow,
total
gas
5541
NmL/min
was
achieved.
Among
all
identified
gases,
represented
highest
molar
fraction
73%.
Under
optimized
conditions,
yield
357
NmL/geffluent
observed.
experimental
results
indicate
significant
increase
at
experimented
temperatures.
On
other
hand,
only
slightly
influenced
process
within
assessed
range
but
showed
tendency
to
values.
Finally,
information
energy
efficiency
optimization
scale-up
are
presented,
same
time,
different
designs
for
industrial
implementation
hydrothermal
gasification
proposed.
Energies,
Год журнала:
2023,
Номер
16(16), С. 6100 - 6100
Опубликована: Авг. 21, 2023
The
aviation
industry
is
a
significant
contributor
to
global
carbon
dioxide
emissions,
with
over
920
million
tonnes
per
year,
and
there
growing
need
reduce
its
environmental
impact.
production
of
biojet
fuel
from
renewable
biomass
feedstocks
presents
promising
solution
address
this
challenge,
the
potential
greenhouse
gas
emissions
dependence
on
fossil
fuels
in
sector.
This
review
provides
an
in-depth
discussion
current
emerging
conversion
technologies,
their
feasibility,
sustainability,
focusing
pathways:
lipids-to-jet,
sugar-to-jet,
gas-to-jet,
alcohol-to-jet,
whole
biomass-to-jet.
Each
technology
discussed
terms
associated
feedstocks,
important
chemistries,
processing
steps,
focus
recent
innovations
improve
yields
product
at
required
specifications.
In
addition,
power-to-liquid
briefly
introduced.
With
integrated
biorefinery
approach,
consideration
given
pretreatment
obtain
specific
for
final
product,
embedded
sustainability
requirements.
highlights
challenges
suggestions
future
research
directions
advance
development
fast-growing
sustainable
industry.
Energies,
Год журнала:
2024,
Номер
17(11), С. 2650 - 2650
Опубликована: Май 30, 2024
This
comprehensive
review
examines
the
role
of
sustainable
aviation
fuels
(SAFs)
in
promoting
a
more
environmentally
responsible
industry.
study
explores
various
types
biofuels,
including
hydroprocessed
esters
and
fatty
acids
(HEFAs),
Fischer–Tropsch
(FT)
fuels,
alcohol-to-jet
(ATJ)
oil
derived
from
algae.
Technological
advancements
production
processing
have
enabled
SAF
to
offer
significant
reductions
greenhouse
gas
emissions
other
pollutants,
contributing
cleaner
environment
better
air
quality.
The
addresses
environmental,
economic,
technical
benefits
SAF,
as
well
challenges
associated
with
their
adoption.
Lifecycle
analyses
are
used
assess
net
environmental
focus
on
feedstock
sustainability,
energy
efficiency,
potential
impacts
biodiversity
land
use.
Challenges
such
economic
viability,
scalability,
regulatory
compliance
discussed,
emphasis
need
for
supportive
policies
international
collaboration
ensure
long-term
sustainability
SAF.
also
current
applications
commercial
airlines
military
settings,
highlighting
successful
case
studies
regional
differences
driven
by
policy
frameworks
government
incentives.
By
technological
innovation
addressing
barriers,
has
play
crucial
industry’s
transition
toward
sustainability.
Energy Conversion and Management X,
Год журнала:
2024,
Номер
23, С. 100611 - 100611
Опубликована: Май 7, 2024
This
paper
investigates
the
techno-economic
implications
on
air
travel
when
fossil-based
kerosene
is
phased
out
of
market,
specifically
focusing
comparison
between
liquid
hydrogen,
methane
and
renewable
for
ten
exemplary
flight
routes
to
estimate
cost
per
passenger
100
km
distance
travelled
€2020PAX100km
every
fuel
type.
By
considering
entire
supply
chain,
including
hydrogen
production
from
sources,
synthesis,
oversea
transport,
domestic
distribution,
utilization,
this
study
addresses
overarching
question
whether
it
more
economical
change
source
or
itself
reduce
fossil
usage
in
aviation
industry.
It
demonstrated
that
aircraft
acquisition
costs
play
a
minor
role
compared
specific
demand.
The
shows
electricity-based
fuels,
most
economic
option,
even
with
potential
energy
penalty,
followed
by
kerosene.
results
an
capacity
180
passengers
are
3.08,
4.57
5.11
€PAX100km
kerosene,
respectively.
Challenges
regarding
storage
isolation
requirements
cryogenic
fuels
discussed,
assumptions
made
these
obstacles
can
be
overcome
realize
benefits.
Additionally,
suggests
shifts
size
selection
airlines
mitigate
rising
prices
future.
advocates
industry's
openness
new
like
alleviate
increase
associated
phasing
Energies,
Год журнала:
2024,
Номер
17(19), С. 4769 - 4769
Опубликована: Сен. 24, 2024
The
aim
of
this
study
is
to
quantitatively
describe
the
anticipated
change
in
energy
mix
Sultanate
Oman
(Oman)
as
country
moves
forward
its
national
plan
for
green
hydrogen,
order
become
a
global
producer
and
exporter.
This
achieved
by
curating
recent
data
about
projects
that
are
either
operating
or
planned
(in
construction
pre-construction
stage).
Then,
these
processed
further
extract
useful
insights
how
would
if
realized
added
ones.
reveals
serious
commitment
accomplish
hydrogen
(GH),
where
production
ambition
2030
1.125
million
tons
per
annum
(Mtpa),
using
renewable
capacity
approximately
18
GW.
increases
3.5
Mtpa
with
70
GW
renewables
2040,
8
180
2050.
As
portrait
Oman’s
assumption
successfully
completing
all
projects,
we
found
expected
have
total
83.1271
GW,
share
(solar
wind)
reaching
83.133%
(as
compared
15.0711
an
8.907%
projects).
Nearly
(precisely
99.571%)
68.0560
additions
based
on
solar
wind
energy,
while
traditional
oil–gas
gradually
phased
out.
Green
dominates
surge
penetration
within
Omani
mix,
84.659%
34.3140
linked
production,
water
electrolyzers.
Similarly,
98.804%
33.4500
production.
