SSRN Electronic Journal,
Год журнала:
2022,
Номер
unknown
Опубликована: Янв. 1, 2022
In
this
study,
the
use
of
ultrasound
techniques
as
a
pretreatment
for
bagasse
and
municipal
sludge
was
investigated.
Through
orthogonal
experiments,
effect
frequency,
power,
reaction
time
mixing
ratio
these
four
influence
factors
on
pyrolysis
characteristics
products
were
obtained.
After
pretreatment,
C
content
sample
increased
N
decreased.
Thermogravimetric
analysis
results
indicated
that
ultrasonic
samples
only
had
one
peak,
value
DTGmax
D
increased.
range
analysis,
45
kHz
200
W
contributed
to
reduction
in
residue
mass
an
increase
D.
Py-GC/MS
hydrocarbon,
ketone,
phenol,
ether,
alcohol,
aldehyde,
acid,
ester,
furfural,
furan,
allose
nitrogen-containing
compounds
main
compositions
co-pyrolysis
sludge.
proportion
phenol
alcohol
relatively
obvious
increase.
While,
decreased
obviously.
The
acid
could
decrease
when
adding
CaO.
Lower
frequency
lower
power
beneficial
ratio.
CaO,
high
promote
formation
while
possibly
reducing
proportion.
Processes,
Год журнала:
2023,
Номер
11(6), С. 1684 - 1684
Опубликована: Июнь 1, 2023
Recently,
there
has
been
so
much
interest
in
using
biomass
waste
for
bio-based
products.
Nigeria
is
one
of
the
countries
with
an
extensive
availability
palm
biomass.
During
oil
production,
empty
fruit
bunch
(biomass)
formed,
and
a
lot
ash
generated.
This
study
aimed
to
extract
characterize
silica
from
(EPFB)
thermochemical
method.
The
results
show
that
EPFB
contains
large
amount
biogenic
its
amorphous
form.
It
could
be
extracted
further
use
via
calcination
at
different
temperatures
compared
effectively
other
materials,
such
as
rice
husk
ash,
sugarcane
bagasse,
cassava
periderm.
was
characterized
XRF,
XRD,
TGA,
SEM,
FTIR,
revealing
highest
concentration
49.94%
obtained
temperature
800
°C.
XRF
analysis
showed
99.44
wt.%
pure
silica,
while
XRD
spectrum
inherently
amorphous.
As
evident
study,
potential
source
it
comparable
commercial
silica.
Thus,
potentially
usable
support
catalysts,
development
zeolite-based
catalysts
adsorbent.
