Fuel Processing Technology,
Journal Year:
2023,
Volume and Issue:
249, P. 107860 - 107860
Published: June 2, 2023
Biofuels
upgrading
gathering
momentum
in
view
of
the
gradual
depletion
fossil
fuels
and
pursuit
renewable
energy
sources
to
mitigate
global
warming.
Hydrodeoxygenation
(HDO)
is
a
key
reaction
bio-oil
produce
hydrocarbon
or
high-value
chemicals.
Oxygen
removal
increases
its
calorific
value,
improve
thermal
chemical
stability,
reduce
corrosiveness,
etc.,
making
upgraded
suitable
as
fuel
blending
fuel.
However,
dependence
on
high-pressure
hydrogen
serious
disadvantage,
it
an
expensive
resource
whose
use
also
poses
safety
concerns.
In
this
scenario,
we
propose
pioneering
route
for
model
biomass
compounds
via
H2-free
HDO.
Herein
have
developed
multifunctional
catalysts
based
Ru
ceria
supported
carbon
able
conduct
hydrodeoxygenation
using
water
source.
We
found
that
cerium
oxide
improves
ruthenium
metallic
dispersion
overall
redox
properties
multicomponent
system
leading
enhanced
catalytic
performance.
Along
with
successful
formulation
identify
300
°C
optimal
temperature
validating
HDO
bio-compounds
upgrading.
Energies,
Journal Year:
2025,
Volume and Issue:
18(4), P. 947 - 947
Published: Feb. 16, 2025
This
research
aimed
to
evaluate
the
comparative
biogas
yields
of
waste
(peels)
selected
fibrous
materials
from
West
African
region:
cassava,
plantain,
a
mixture
plantain
and
yam.
Three
models:
The
Boyle
model,
Modified
Boyle’s
Buswell
Müller’s
model
were
used
determine
theoretical
maximum
biomethane
potentials
(TMBP),
while
Hohenheim
Biogas
Yield
test
(D-HBT)
was
undertake
batch
anaerobic
digestion.
samples
co-digested
with
digested
sewage
sludge
(DSS)
for
39
days,
an
operating
temperature
37
±
0.5
°C.
study
draws
comparisons
between
TBMPs
experimental
results,
results
different
substrates,
figures
reported
in
literature.
From
peels
had
highest
yield
(468
72
mL/g
oTS),
followed
by
yam,
cassava
(362
31
oTS)
obtained
least
(218
19
oTS).
TMBPS
204.04,
209.03
217.45
CH4
oTS
peels,
respectively,
evaluated
using
model.
For
all
samples,
(205.56,
218.45
oTS,
respectively)
Mueller
slightly
higher
than
those
both
modified
(163.23,
167.22
174.76
respectively).
While
result
is
sufficient
imply
that
generating
its
form
valuable
approach,
it
not
conclude
use
these
naturally
occurring
has
technical
added
advantage
co-digestion
over
their
individual
potential.
However,
future
studies
could
explore
this
possibility
fractions
view
optimising
generation.
finds
theoretically
modelling
potential
good
method
evaluation
despite
having
overestimation
tendencies,
as
challenge
be
corrected
applying
factors
biodegradability
indices.
data
can,
therefore,
find
treatment
waste-to-energy
technologies,
especially
Africa.
application
will
negatively
affected
whether
single
water
streams
are
or
mixture.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(5), P. 1069 - 1069
Published: Feb. 26, 2025
The
feasibility
of
saturating
aqueous
anoxic
solutions
with
in
situ-generated
high-purity
nitric
oxide
(NO)
is
shown
herein.
A
methemoglobin
assay
estimated
the
average
concentration
to
be
ca.
20
±
3
µM.
Graphene
dispersions
were
prepared
by
ultrasound-assisted
extra
exfoliation.
These
dispersions,
including
unpurified
(pristine)
samples
and
purified
from
transition
metal
impurities
(bulk)
fractions
(bulkGO)
(nano)
separated
(nanoGO)
a
range
0.5
14
kDa
ppm
level
concentrations.
robust
reproducible
chemiluminescence
(CL)
validated
interaction
between
graphene
NO
luminol-based
system.
results
showed
significant
increase
scavenging
activity
within
bulkGO
nanofractions
ranging
3.5
kDa.
different
reaction
pathways
underlying
transformation
are
being
evaluated,
focusing
on
understanding
how
its
presence
or
absence
affects
these
processes.
Our
kinetic
model
suggests
difference
regulation;
nanoGO
demonstrates
an
interception
rate
seventy-times
higher
than
that
achieved
through
CL
quenching.
Communications Chemistry,
Journal Year:
2023,
Volume and Issue:
6(1)
Published: Dec. 13, 2023
Abstract
Feedstock
properties
play
a
crucial
role
in
thermal
conversion
processes,
where
understanding
the
influence
of
these
on
treatment
performance
is
essential
for
optimizing
both
feedstock
selection
and
overall
process.
In
this
study,
series
van
Krevelen
diagrams
were
generated
to
illustrate
impact
H/C
O/C
ratios
products
obtained
from
six
commonly
used
techniques:
torrefaction,
hydrothermal
carbonization,
liquefaction,
gasification,
pyrolysis,
gasification.
Machine
learning
methods
employed,
utilizing
data,
methods,
results
corresponding
studies
field.
Furthermore,
reliability
constructed
was
analyzed
assess
their
dependability.
The
developed
work
systematically
provide
visual
representations
relationships
between
thereby
aiding
choice
technique.
