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.
Rapid Communications in Mass Spectrometry,
Journal Year:
2025,
Volume and Issue:
39(10)
Published: Feb. 18, 2025
ABSTRACT
Rationale
The
cigars
have
characteristic
flavors
in
smoke
when
compared
with
cigarettes,
and
from
various
origins
also
a
difference
taste.
However,
little
information
can
be
found
about
the
chemical
components
of
smokes
between
cigar
cigarette
as
well
cigars,
so
it
is
interesting
to
compare
their
pyrolysis
product
distribution.
Methods
leaves
were
pyrolyzed
microfluidized‐bed
reactor,
vapors
condensed
collected
using
cold
traps.
Mass
spectrometric
analysis
liquids
was
performed
utilizing
electrospray
ionization‐orbitrap
mass
spectrometry
both
positive
negative
ion
modes.
Results
spectra
condensable
products
three
tobacco
obtained
by
Orbitrap‐MS
ESI
DBE
values
(to
carbon
atom
number)
relative
distribution
nitrogen
or
oxygen
different
carefully
discussed.
Conclusion
main
relates
N
1
–N
2
class
compounds
high‐mass
range
highly
unsaturated
nitrogenated
compounds,
while
one
two
associated
C
x
H
y
O
z
5–9
30‐50
w
compounds.
Besides,
oxygenated
that
fall
into
H/C
>
O/C
<
ranges
are
for
Dominican
cigar.
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.
