Optimization of pyrolysis process parameters for optimal high heating value of biochar produced from rice straw
Biofuels,
Год журнала:
2025,
Номер
unknown, С. 1 - 11
Опубликована: Янв. 18, 2025
Язык: Английский
Enhancement of wheat straw pellet quality for bioenergy through additive blending
Journal of the Air & Waste Management Association,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 3, 2025
Densification
of
biomass
through
pelletizing
offers
a
promising
approach
to
producing
clean
biofuels
from
renewable
resources.
This
study,
which
investigates
the
impact
additive
blends
on
wheat
straw
pellet
making
and
upgrading
physiochemical
properties,
has
revealed
exciting
possibilities.
Five
additives,
including
sawdust
(SD),
bentonite
clay
(BC),
corn
starch
(S),
crude
glycerol
(CG),
biochar
(BioC),
were
chosen
for
this
study.
Pellets
made
seven
different
combinations
using
laboratory-scale
mill.
The
resulting
pellets'
physical
elemental
properties
assessed
against
ISO
17,225-8
standards.
Compared
control
pellets,
(T3-T7)
exhibited
significant
improvements
in
mechanical
durability
(80%
99%),
tensile
strength
(0.36
MPa
2.09
MPa),
bulk
density
(244
kg/m3
665.21
kg/m3),
all
meeting
AdditionaUF000llylly,
these
maintained
low
fines
content
(<2%)
water
absorption
capacity
(<2%,
except
T1
T5).
Furthermore,
fixed
carbon
increased
11.1%
30.90%,
energy
rose
17.02
MJ/kg
20.36
MJ/kg,
showed
synergistic
effect
blending
additives.
These
findings
underscore
potential
as
viable
source
bioenergy
production
pelletization,
offering
hopeful
outlook
future
energy.
However,
further
research
is
necessary
optimize
mixing
ratios
even
greater
quality.
Язык: Английский
Can Batch Lab-Scale Studies of Slow Pyrolysis Describe Biochar Yields and Properties Upon Upscaling to a Continuous Auger Kiln?
Journal of Cleaner Production,
Год журнала:
2025,
Номер
unknown, С. 145150 - 145150
Опубликована: Фев. 1, 2025
Язык: Английский
Experimental and numerical study on the evolution of cellulose char granules with different degree of densification
Journal of environmental chemical engineering,
Год журнала:
2025,
Номер
unknown, С. 116836 - 116836
Опубликована: Апрель 1, 2025
Язык: Английский
Environmental impact assessment of alternative technologies for production of biofuels from spent coffee grounds
Energy Science & Engineering,
Год журнала:
2024,
Номер
12(11), С. 4823 - 4842
Опубликована: Окт. 3, 2024
Abstract
In
the
strategy
to
combat
climate
change
that
has
been
caused
by
world's
overdependence
on
fossil
fuels,
current
research
is
focusing
decarbonisation
of
energy
sector
through
production
renewable
cleaner
energy,
such
as
biofuels.
Spent
coffee
grounds
(SCGs),
waste
stream
brewing
industry,
are
a
potential
feedstock
for
valuable
products,
including
However,
environmental
implications
valorisation
this
need
be
investigated.
This
study
assesses
impacts
six
biomass‐to‐fuel
processing
technologies
using
SCGs
feedstock,
with
aim
identifying
most
environmentally
friendly
technology.
A
cradle‐to‐gate
life‐cycle
assessment
(LCA)
was
conducted
fast
pyrolysis,
fermentation,
anaerobic
digestion
(AD),
hydrothermal
liquefaction
(HTL),
gasification,
and
biodiesel
production.
The
mass
balances
obtained
from
Aspen
Plus
simulations
served
inventory
data.
Using
ReCiPe
2016
midpoint
(H)
Eco‐Indicator
99
methods,
were
calculated
in
OpenLCA
software.
Electricity
generation
carbon
dioxide
emissions
biggest
contributors
impacts.
For
each
category,
maximum
result
set
100%
results
other
variants
displayed
relation
result.
AD,
smallest
total
weighted
score
(160),
route,
while
HTL,
(893),
worst.
sensitivity
analysis
indicated
performance
biofuel
highly
influenced
input
flows
source
generation.
Язык: Английский
Pyrolytic Pathway of Wheat Straw Pellet by the Thermogravimetric Analyzer
Energies,
Год журнала:
2024,
Номер
17(15), С. 3693 - 3693
Опубликована: Июль 26, 2024
The
study
of
the
thermokinetics
two
types
wheat
straw
pellets,
T1
(100%
straw)
and
T2
(70%
straw,
10%
each
bentonite
clay,
sawdust,
biochar),
under
a
nitrogen
atmosphere
(31–800
°C
5,
10,
20
°C/min
heating
rates)
using
model-free
model-based
approaches
by
TG/DTG
data,
revealed
promising
results.
While
methods
were
not
suitable,
reactions,
particularly
Fn
(nth-order
phase
interfacial)
F2
(second-order)
models,
effectively
described
three-phase
consecutive
thermal
degradation
pathway
(A→B,
C→D,
D→E).
activation
energy
(Eα)
for
phases
2
3
(Fn
model)
averaged
136.04
358.11
kJ/mol
132.86
227.10
T2,
respectively.
pre-exponential
factor
(lnA)
varied
across
rates
pellets
(T2:
38.244–2.9
×
109
1/s;
T1:
1.2
102–5.45
1014
1/s).
Notably,
with
additives
(T2)
exhibited
higher
degradable
fraction
due
to
lower
Eα.
These
findings
suggest
potential
utilizing
pellet
biomass
as
bioenergy
feedstock,
highlighting
practical
implications
this
research.
Язык: Английский
Characterization of Sunflower Waste Carbonization: Energy Balance and Water Holding Properties
Sustainability,
Год журнала:
2024,
Номер
16(24), С. 11234 - 11234
Опубликована: Дек. 21, 2024
This
paper
characterizes
the
carbonization
process
of
biomass
wastes,
including
sunflower
husk
pellets
and
sponge
stalk
pellets,
at
temperatures
450
550
°C.
These
studies
are
important
because
reductions
in
wood
resources
for
preparation
barbecue
charcoal,
as
well
agricultural
benefits
terms
soil
additives.
In
energy
balance,
obtained
pyrolysis
ensures
autothermal
process.
The
heating
characteristics
fixed
bed
showed
that,
due
to
difference
bulk
density,
temperature
reached
°C
110
min,
whereas
same
200
min.
Additionally,
used
increased
from
2.9
kWh
3.3
°C,
while
3.5
3.9
kWh.
combustion
assessed
using
TGA
that
leads
biochar
with
a
higher
activity
than
derived
sponge.
According
experimental
results,
has
water
content
capacity
absorption
rate
pellets.
Язык: Английский