International Journal of Energy Research,
Год журнала:
2024,
Номер
2024(1)
Опубликована: Янв. 1, 2024
This
comprehensive
review
delves
into
the
intersection
of
ensemble
machine
learning
models
and
interpretability
techniques
for
biomass
waste
gasification,
a
field
crucial
sustainable
energy
solutions.
It
tackles
challenges
like
feedstock
variability
temperature
control,
highlighting
need
deeper
understanding
to
optimize
gasification
processes.
The
study
focuses
on
advanced
modeling
random
forests
gradient
boosting,
alongside
methods
Shapley
additive
explanations
partial
dependence
plots,
emphasizing
their
importance
transparency
informed
decision‐making.
Analyzing
diverse
case
studies,
explores
successful
applications
while
acknowledging
overfitting
computational
complexity,
proposing
strategies
practical
robust
models.
Notably,
finds
consistently
achieve
high
prediction
accuracy
(often
exceeding
R
2
scores
0.9)
gas
composition,
yield,
heating
value.
These
(34%
reviewed
papers)
are
most
applied
method,
followed
by
artificial
neural
networks
(26%).
Heating
value
(12%)
was
studied
performance
metric.
However,
is
often
neglected
during
model
development
due
complexity
permutation
Gini
importance.
paper
calls
dedicated
research
utilizing
interpreting
models,
especially
co‐gasification
scenarios,
unlock
new
insights
process
synergy.
Overall,
this
serves
as
valuable
resource
researchers,
practitioners,
policymakers,
offering
guidance
enhancing
efficiency
sustainability
gasification.
Environmental Science & Technology,
Год журнала:
2023,
Номер
57(31), С. 11357 - 11372
Опубликована: Июль 26, 2023
Biochar,
a
carbon
(C)-rich
material
obtained
from
the
thermochemical
conversion
of
biomass
under
oxygen-limited
environments,
has
been
proposed
as
one
most
promising
materials
for
C
sequestration
and
climate
mitigation
in
soil.
The
contribution
biochar
hinges
not
only
on
its
fused
aromatic
structure
but
also
abiotic
biotic
reactions
with
soil
components
across
entire
life
cycle
environment.
For
instance,
minerals
microorganisms
can
deeply
participate
mineralization
or
complexation
labile
(soluble
easily
decomposable)
even
recalcitrant
fractions
biochar,
thereby
profoundly
affecting
cycling
Here
we
identify
five
key
issues
closely
related
to
application
review
outstanding
advances.
Specifically,
terms
use
pyrochar,
hydrochar,
stability
soil,
effect
flux
speciation
changes
emission
nitrogen-containing
greenhouse
gases
induced
by
production
application,
barriers
are
expounded.
By
elaborating
these
critical
issues,
discuss
challenges
knowledge
gaps
that
hinder
our
understanding
provide
outlooks
future
research
directions.
We
suggest
combining
mechanistic
biochar-to-soil
interactions
long-term
field
studies,
while
considering
influence
multiple
factors
processes,
is
essential
bridge
gaps.
Further,
standards
should
be
widely
implemented,
threshold
values
urgently
developed.
Also
needed
comprehensive
prospective
assessments
restricted
account
contributions
contamination
remediation,
quality
improvement,
vegetation
accurately
reflect
total
benefits
Energy Conversion and Management,
Год журнала:
2024,
Номер
302, С. 118093 - 118093
Опубликована: Фев. 1, 2024
It
is
crucial
to
find
sustainable
and
renewable
fuel
sources
because
traditional
fossil
fuels
are
running
out
pollution
levels
rising.
In
this
context,
biocrude
derived
from
biomass
emerges
as
a
promising
alternative,
with
hydrothermal
liquefaction
(HTL)
playing
pivotal
role
in
transformation.
HTL's
versatility
converting
wide
range
of
or
waste
materials
into
especially
notable.
Therefore,
comprehensive
review
focused
on
the
latest
advancements
HTL
technology,
including
its
potential
process
various
materials,
resulting
high
yields
(up
60–86%
different
types).
The
study
explored
such
effects
catalysts
processes,
scalability
for
commercializing
continuous
aqueous
phase
recycling.
also
integration
machine
learning
optimization,
offering
insights
how
these
advanced
computational
techniques
can
enhance
efficiency
output
quality.
subsequent
hydrotreatment
emerge
key
technologies
utilizing
source.
This
not
only
highlights
current
state
refining
upgrading
but
stresses
need
ongoing
development
domains.
presented
transformative
solution
energy
sector,
alternative
while
tackling
impurities
heteroatoms
management
challenges.
concluded
by
underscoring
practical
implications
advancements,
suggesting
roadmap
future
research
field.
Biofuels Bioproducts and Biorefining,
Год журнала:
2024,
Номер
18(2), С. 567 - 593
Опубликована: Фев. 5, 2024
Abstract
Biochar
is
emerging
as
a
potential
solution
for
biomass
conversion
to
meet
the
ever
increasing
demand
sustainable
energy.
Efficient
management
systems
are
needed
in
order
exploit
fully
of
biochar.
Modern
machine
learning
(ML)
techniques,
and
particular
ensemble
approaches
explainable
AI
methods,
valuable
forecasting
properties
efficiency
biochar
properly.
Machine‐learning‐based
forecasts,
optimization,
feature
selection
critical
improving
techniques.
In
this
research,
we
explore
influences
these
techniques
on
accurate
yield
range
sources.
We
emphasize
importance
interpretability
model,
improves
human
comprehension
trust
ML
predictions.
Sensitivity
analysis
shown
be
an
effective
technique
finding
crucial
characteristics
that
influence
synthesis
Precision
prognostics
have
far‐reaching
ramifications,
influencing
industries
such
logistics,
technologies,
successful
use
renewable
These
advances
can
make
substantial
contribution
greener
future
encourage
development
circular
biobased
economy.
This
work
emphasizes
using
sophisticated
data‐driven
methodologies
synthesis,
usher
ecologically
friendly
energy
solutions.
breakthroughs
hold
key
more
environmentally
future.
Energy & Fuels,
Год журнала:
2023,
Номер
37(22), С. 17310 - 17327
Опубликована: Окт. 28, 2023
Biochar
is
found
to
possess
a
large
number
of
applications
in
energy
and
environmental
areas.
However,
biochar
could
be
produced
from
variety
sources,
showing
that
yield
proximate
analysis
outcomes
change
over
wide
range.
Thus,
developing
high-accuracy
machine
learning-based
tool
very
necessary
predict
characteristics.
In
this
study,
hybrid
technique
was
developed
by
blending
modern
learning
(ML)
algorithms
with
cooperative
game
theory-based
Shapley
Additive
exPlanations
(SHAP).
SHAP
employed
help
improve
interpretability
while
offering
insights
into
the
decision-making
process.
ML
models,
linear
regression
as
baseline
method,
more
advanced
methodologies
like
AdaBoost
boosted
tree
(BRT)
were
employed.
The
prediction
models
evaluated
on
battery
statistical
metrics,
all
observed
robust
enough.
Among
three
BRT-based
model
delivered
best
performance
R2
range
0.982
0.999
during
training
phase
0.968
0.988
test.
value
mean
squared
error
also
quite
low
(0.89
9.168)
for
models.
quantified
each
input
element
expected
results
provided
in-depth
understanding
underlying
dynamics.
helped
reveal
temperature
main
factor
affecting
response
predictions.
proposed
here
provides
substantial
manufacturing
process,
allowing
improved
control
properties
increasing
use
sustainable
flexible
material
numerous
applications.