Waste,
Journal Year:
2025,
Volume and Issue:
3(2), P. 12 - 12
Published: March 25, 2025
Pretreatment
of
lignocellulosic
biomass
remains
the
primary
obstacle
to
profitable
use
this
type
in
biorefineries.
The
challenge
lies
recalcitrance
lignin-carbohydrate
complex
pretreatment,
especially
difficulty
removing
lignin
access
carbohydrates
(cellulose
and
hemicellulose).
This
study
had
two
objectives:
(i)
investigate
effect
reactive
extrusion
on
terms
delignification
percentage
structural
characteristics
resulting
extrudates,
(ii)
propose
a
novel
pretreatment
approach
involving
technology
based
results
first
objective.
Two
types
biomasses
were
used:
agricultural
residue
(corn
stover)
forest
(black
spruce
chips).
By
optimizing
conditions
via
response
surface
analysis
(RSA),
percentages
significantly
improved.
For
corn
stover,
yield
increased
from
2.3%
27.4%,
while
increasing
1%
25.3%
for
black
chips.
highest
achieved
without
sodium
hydroxide
temperatures
below
65
°C.
Furthermore,
optimized
extrudates
exhibited
important
changes
any
formation
p-cresol,
furfural,
5-hydroxymethylfurfural
(HMF)
(enzymes
microbial
growth-inhibiting
compounds).
Acetic
acid
however
was
detected
stover
extrudate.
included
disorganization
most
recalcitrant
functional
groups,
reduction
particle
sizes,
increase
specific
areas,
appearance
microscopic
roughness
particles.
Analyzing
all
data
led
new
promising
biomasses.
involves
combining
biodelignification
with
white
rot
fungi
improve
enzymatic
hydrolysis
carbohydrates.
Energy Reports,
Journal Year:
2024,
Volume and Issue:
12, P. 2642 - 2652
Published: Aug. 31, 2024
Over
the
past
decade,
sustainable
aviation
fuels
(SAF)
research
has
surged
due
to
aviation's
2–3
%
global
emissions,
driving
urgent
development
meet
climate
goals.
This
study
employed
a
mixed-method
approach,
combining
literature
review
following
PRISMA
framework
with
case
analysis.
is
first
systematically
SAF
through
lens
of
SDGs,
providing
comprehensive
analysis
how
contributes
various
targets.
highlights
critical
gaps
in
current
research,
particularly
need
for
studies
focused
on
economic
and
social
dimensions
SAFs
alongside
technological
environmental
aspects.
paper
utilized
BERTopic
modeling
thematic
SDG
Mapper
tool
align
SAF-related
publications
overview
landscape.
The
findings
reveal
that
38.9
aligns
13
(climate
action),
emphasizing
focus
mitigating
greenhouse
gas
emissions.
7
(Affordable
Clean
Energy)
12
(Responsible
Consumption
Production)
are
also
significantly
represented,
24.1
13.7
alignment,
respectively.
Six
topics
identified:
net
zero
supply
chain
models,
advanced
air
mobility,
microalgae-based
biofuels,
bio
jet
fuel
production
processes,
renewable
catalysts.
cover
innovations,
management,
impact,
stakeholder
engagement,
highlighting
challenges
benefits
reducing
industry's
carbon
footprint.
To
reduce
companies
should
optimize
blending,
invest
Jatropha-based
fuels,
locate
facilities
strategically,
retrofit
refineries,
assess
life
cycles,
engage
stakeholders.
Governments
must
update
standards,
provide
financial
incentives,
support
retrofits,
ensure
promote
feedstocks,
foster
collaboration,
incentivize
adoption.
results
underscore
SAF's
potential
contribute
multiple
footprint
promoting
energy
practices.
Industrial & Engineering Chemistry Research,
Journal Year:
2025,
Volume and Issue:
64(8), P. 4410 - 4424
Published: Feb. 17, 2025
Biojet
fuel
is
an
attractive
option
to
reduce
global
greenhouse
gas
(GHG)
emissions
from
the
aviation
industry.
In
this
paper,
we
propose
a
two-stage
stochastic
linear
program
analyze
optimal
operation
of
integrated
sugarcane
mill
that
produces
sustainable
(SAF)
using
historical
time-series
commodities
price
data
Brazil.
We
find
currently
available
alcohol-to-jet
(ATJ)
technologies
require
premiums
between
0.4
$
L–1
(2.07
R$
L–1)
and
2
(10.34
incentivize
biojet
production
sugarcane.
Similarly,
with
emerging
ATJ
technologies,
0.1
(0.52
1.25
(6.46
are
required.
Sensitivity
analysis
quantifies
impact
technologies'
conversion
operating
costs,
as
well
SAF
incentives,
on
fraction
weeks
favorable,
which
can
guide
technology
policy
development.
Currently,
mills
operated
little
flexibility
due
structure
Brazilian
market.
also
estimate
hypothetical,
fully
flexible
could
gain
up
6
million
per
year
in
profit;
most
value
comes
process,
motivates
standalone
upgrading
facilities.
Finally,
show
how
analyzing
optimality
conditions
allows
for
easy
communication
behavior
terms
relative
product
prices.
These
results
provide
basis
development
context
Brazil,
these
ideas
be
extended
develop
capacity
supply
chains
globally.
Resources Conservation & Recycling Advances,
Journal Year:
2024,
Volume and Issue:
23, P. 200223 - 200223
Published: June 25, 2024
Aviation
plays
a
crucial
role
in
global
economic
growth
and
can
be
influenced
by
events
like
COVID-19
climate
change.
The
aviation
sector
has
significant
carbon
footprint
that
correlated
with
extreme
weather
conditions,
outlining
challenges
faced
airports
proposing
strategies
such
as
environmental
management,
advanced
fuels,
retirement
of
older
aircraft.
This
review
analyzes
107
scientific
papers
reports
to
explore
the
opportunities
integrate
circular
economy
(CE)
within
sector,
emphasizing
on
waste
management
practices.
It
highlights
sector's
initiatives
in-cabin
reduction,
tracking
systems,
plastic-free
flights.
Moreover,
it
covers
industry's
efforts
adopt
principles
convert
(in-cabin
end-of-use)
into
Sustainable
Fuels
(SAFs).
outlines
diverse
biofuel
production
methods,
including
alcohol
upgrading,
fermentation,
gasification-Fischer
Tropsch,
thermochemical
processes.
also
discusses
innovative
technologies
microbial
enzymatic
approaches
power-to-liquid
(PtL).
examines
policies
surrounding
sustainable
airports,
disconnect
between
sustainability
goals
rising
output
accompanying
need
for
more
effective
research
emissions
quotas
consumption
patterns.
Additionally,
addresses
collaboration
regarding
waste-to-energy
(WtE)
conversion
achieve
comprehensive
efficient
airport
strategies.
integration
CE
vicinities
is
vital
mitigate
impacts
importance
utilizing
cabin
end-of-use
valuable
resource
SAFs
production,
which
continues
face
several
related
scalability,
technological
readiness,
viability.
Current Opinion in Green and Sustainable Chemistry,
Journal Year:
2024,
Volume and Issue:
49, P. 100959 - 100959
Published: July 18, 2024
Challenges
related
to
economic
viability
and
production
processes
sustainable
aviation
fuel
(SAF)
have
significantly
hindered
its
widespread
commercial
adaptations.
This
mini
review
provides
the
current
opinion
on
various
feedstocks
conversion
for
low-cost
SAF
production.
The
primary
emphasis
lies
exploring
alternatives
traditional
feed
crops
with
a
shift
toward
utilizing
lignocellulosic
biomass,
waste
feedstocks,
oil-seed
crops,
microalgal
oil.
Fischer–Tropsch
process,
hydroprocessed
esters
fatty
acids,
nonthermal
plasma
method,
where
oil-based
oil,
oils
are
widely
used
cost
effective,
high
potential
produce
SAF.
However,
technical
immaturity
compel
detailed
investigation
optimization
process
using
alternative
feedstock.
insights
critical
factors
effecting
reaction
efficiencies,
including
feedstock
characteristics,
parameters,
catalyst
reusability,
supports
that
need
systematic
investigation.
Conclusively,
this
outlook
delves
into
challenges,
solutions,
opportunities
associated
cost-effective
