Journal of Chromatography A,
Journal Year:
2024,
Volume and Issue:
1741, P. 465641 - 465641
Published: Dec. 27, 2024
The
development
of
biofuel
technologies
depends
on
the
accurate
identification
and
quantification
products
from
conversion
processes.
Given
complexity
renewable
resources,
availability
biomass,
versatility
methods,
there
is
a
need
for
characterization
methods
that
provide
rapid
reliable
analysis
various
coming
different
processes
with
minimal
sample
preparation.
This
study
develops
validates
gas
chromatography
use
multiple
detectors
to
analyze
pyrolytic
compounds
in
both
liquid
phases
efficiently
single,
run.
For
products,
flame
ionization
thermal
conductivity
were
used
organic
inorganic
gases,
volume
mass
concentrations
showing
<1
%
error
between
calculated
referenced
values.
A
method
analyzing
product
containing
hydrocarbons
fatty
acids
was
developed
without
derivatization,
using
simultaneous
spectrometer
detector
quantification.
Validation
against
established
demonstrated
comparable
results,
utilizing
less
time.
While
dual
feature
provides
simple
analytical
tool
pyrolysis
these
are
also
adaptable
non-simultaneous
instrument
setups
broadly
applicable
any
general
oxygenates,
making
them
useful
improving
production
technologies.
Polymers,
Journal Year:
2025,
Volume and Issue:
17(3), P. 368 - 368
Published: Jan. 29, 2025
Waste
cooking
oils
(WCOs)
are
generated
globally
from
households,
the
hospitality
industry,
and
other
sectors.
Presently,
WCOs
mainly
employed
as
feedstock
for
biodiesel
energy
production,
strongly
depending
on
availability
of
WCOs,
which
often
imported
countries.
The
objective
this
review
is
to
give
an
overall
comprehensive
panorama
impacts,
regulations,
restrictions
affecting
their
possible
uses
producing
high-value
products,
such
bio
lubricants,
surfactants,
polymer
additives,
road
construction
solvents.
Interestingly,
many
reviews
reported
in
literature
that
address
use
but
a
topic
missing.
Published
studies,
industry
reports,
regulatory
documents
were
examined
identify
trends,
challenges,
production
statistics,
environmental
current
production.
data
collected
show
hold
immense
potential
renewable
resources
sustainable
industrial
applications
line
with
global
carbon
neutrality
goals
circular
economy
principles.
However,
achieving
shift
requires
addressing
gaps,
enhancing
collection
systems,
optimizing
conversion
technologies.
This
underlines
need
collaborative
efforts
among
policymakers,
stakeholders,
researchers
maximize
contribute
development.
Polymers,
Journal Year:
2025,
Volume and Issue:
17(7), P. 887 - 887
Published: March 26, 2025
Waste
cooking
oils
(WCOs)
are
generated
globally
in
significant
amounts
by
various
sectors
including
hospitality,
households,
and
industrial
operations.
Many
nations
currently
lack
dedicated
legislation
for
managing
WCOs,
creating
a
pressing
environmental
challenge.
At
present,
WCOs
primarily
utilized
industries
as
raw
materials
biodiesel
production
energy
generation.
However,
their
role
second-generation
is
contingent
on
availability,
often
necessitating
imports
of
either
or
from
other
countries.
The
European
Union
has
emphasized
the
importance
prioritizing
biowaste
high-value
alternative
products
beyond
to
achieve
carbon
neutrality
2050.
reviews
have
been
published
literature
reporting
potential
WCO
applications
produce
biolubricants,
biosolvents,
animal
feed,
asphalt
additives,
among
others,
however,
no
detailed
analysis
trends
ever
presented.
Within
this
panorama,
unlike
existing
that
focus
specific
polymer
classes
derived
work
sought
present
comprehensive
overview
use
polymeric
fuel
energy,
providing
general
patents
(or
alive)
last
10
years,
together
with
which
innovative
being
introduced
sold
market
today.
Energies,
Journal Year:
2025,
Volume and Issue:
18(4), P. 981 - 981
Published: Feb. 18, 2025
The
high
viscosity
and
oxygen
content
of
pyrolysis
crude
oil
hinder
the
advancement
technology.
To
address
issue,
this
study
conducted
hydrodeoxygenation
upgrading
experiments
on
using
hydrothermal
directional
conversion.
A
variable
analysis
was
performed
to
assess
differences
in
effects
based
active
metal
(Ru,
Pt)
supports
(activated
carbon,
Nb2O5,
MgO)
supported
catalyst,
further
investigations
were
catalyst
with
bimetallic
doping
modification.
Optimal
reaction
conditions
determined
by
adjusting
temperature.
Additionally,
conversion
studies
model
compounds
carried
out
elucidate
pathway.
results
indicated
that
Pt/MgO
achieved
highest
yield
stable
combustible
(hydrocarbons,
alcohols,
ethers,
esters,
ketones),
a
17.8
wt%.
Upon
modification
Ni
doping,
increased
49.5%.
effect
improved
an
increase
temperature,
target
26.7
wt%
at
290
°C,
energy
rate
72.6%
selectivity
75.8%.
Moreover,
physicochemical
properties
upgraded
similar
those
ethanol.
All
three
underwent
100%
This
provides
both
experimental
support
theoretical
foundation
for
development
biomass
Polymers,
Journal Year:
2025,
Volume and Issue:
17(5), P. 688 - 688
Published: March 4, 2025
Following
the
concept
of
"waste
into
resources",
a
mild
and
controllable
light
grafting
technique
was
used
to
immobilize
pancreatic
lipase
(PPL)
in
situ
on
modified
organic,
chromium-free
tanned
leather
scraps
catalyze
hydrolysis
waste
oil.
The
experimental
results
showed
that
immobilized
PPL
significantly
improved
catalytic
activity,
operational
stability,
reusability,
storage
stability
compared
free
PPL.
Furthermore,
study
evaluated
environmental
compatibility
system
through
biological
risk
assessment
soil
extracts
after
degradation,
indicating
has
good
compatibility.
experiment
is
simple
operate,
uses
conditions,
material
obtained
from
leather-making
solid
waste.
use
this
immobilization
treat
oil
process
great
significance
for
achieving
clean
sustainable
production
industry.
