Journal of Umm Al-Qura University for Applied Sciences,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 28, 2025
Abstract
Bioethanol
production
from
lignocellulosic
biomass
has
become
an
economical
and
environmentally
friendly
substitute
to
current
petroleum-based
fuels.
This
is
due
its
ability
decrease
carbon
dioxide
emissions
make
use
of
plentiful
natural
resources.
Current
advances
in
this
area
concentrate
on
improving
the
effectiveness
expandability
conversion
procedures
by
using
inventive
pretreatment
approaches,
enhanced
enzyme
compositions,
refined
fermentation
technologies.
Consolidated
bioprocessing
(CBP)
utilizing
genetically
modified
microbes
have
expedited
decomposition
intricate
complexes
overall
productivity.
Furthermore,
process
intensification
developments,
such
as
adoption
hybrid
reactors
continuous
systems,
considerably
decreased
expenses
energy
usage.
Nevertheless,
there
are
still
obstacles
overcome,
including
raw
materials
inconsistency,
demand
for
efficient
recovery
purifying
techniques,
financial
viability
extensive
processes.
study
examines
latest
developments
bioethanol
biomass.
It
focuses
ecological
technical
advancements,
main
that
need
be
overcome
exploit
promise
a
biofuel
fully.
review
primarily
focused
outcomes
documented
last
five
years
2019
2024.
The
first
segment
work
second-generation
process,
which
includes:
properties
composition
biomass,
pretreatment,
enzymatic
saccharification,
fermentation.
subsequent
portion
paper
techno-economic
analysis,
prospective
technology
outlook.
finishes
discussing
findings
research
fields
haven't
been
investigated
yet,
besides
faced
manufacturing
methods.
Fermentation,
Journal Year:
2024,
Volume and Issue:
10(8), P. 436 - 436
Published: Aug. 21, 2024
Coffee
beans,
a
popular
commodity
in
the
world,
are
processed
into
coffee,
which
generates
considerable
quantity
of
spent
coffee
grounds
(SCGs).
However,
SCGs,
byproduct
rich
hemicellulose,
poses
challenge
due
to
fermentable
sugar
loss
during
conventional
pretreatment.
This
study
investigates
efficient
production
bioethanol
from
SCG
using
an
optimized
liquid
hot
water
(LHW)
pretreatment
combined
with
separate
hydrolysis
and
fermentation
(SHF)
process.
LHW
at
180
°C
for
20
min
high
solid-to-liquid
ratio
(SLR)
1:6
(w/v)
was
disrupt
lignocellulosic
structure
retain
levels
sugars,
included
mannose
glucose.
approach
achieved
concentration
15.02
±
0.05
g/L
productivity
rate
1.252
g/(L·h),
demonstrating
efficiency
this
integrated
Interestingly,
SLR
significantly
reduces
usage
enhances
product
concentration,
offering
promising,
environmentally
friendly,
economically
viable
method
industrial
SCGs
without
necessity
detoxification.
The Science of The Total Environment,
Journal Year:
2025,
Volume and Issue:
976, P. 179234 - 179234
Published: April 9, 2025
Bark
represents
10
%
dry
weight
of
spruce
trees
and
is
a
major
side
stream
from
pulp
production.
Currently,
mills
burn
bark
to
produce
energy
with
low
economic
value,
directly
emitting
biogenic
carbon
dioxide
the
atmosphere.
Biorefining
using
continuous
flow-through
fractionation
process
generates
high
added-value
compounds
(tall
oil,
starch,
phenol,
pulp)
that
allow
for
extended
storage
durations.
This
study
assesses
potential
future
environmental
impacts
valorising
instead
burning
it.
We
conduct
LCA
combining
prospective
consequential
modelling
perspective
an
input-related
functional
unit
account
effects
storing
in
bark-based
products.
Our
findings
show
biorefining
maintains
lower
than
combustion,
reducing
time-differentiated
climate
by
up
30
%,
but
only
when
used
pulping
recirculated
processes
are
integrated
co-located
mill
supplying
surplus
waste
energy,
considered
have
no
associated
impacts.
Storing
longer
period
time
has
positive
effect
on
mitigating
short-term
However,
our
analysis
reveals
while
time-dependent
decrease,
there
increase
human
toxicity
ecotoxicity
impacts,
combustion
performing
better
these
categories.
highlights
importance
expanding
scope
studies
include
beyond
change.
Overall,
this
work
demonstrates
relevant
approach
emerging
biorefineries
thus
supports
development
sustainable
circular
bioeconomy.
ACS Omega,
Journal Year:
2025,
Volume and Issue:
10(16), P. 16683 - 16694
Published: April 15, 2025
In
this
study,
we
developed
a
Python-based
open-source
algorithm
compatible
with
the
aqueous
physical
property
models
provided
in
electrolyte
templates
of
AspenTech
software.
To
validate
accuracy
model,
results
obtained
from
proposed
were
compared
to
experimental
data
for
37
binary
mixture
systems
covering
properties
such
as
density,
heat
capacity,
viscosity,
and
thermal
conductivity.
The
input
variables
included
our
previous
research
on
pure
component
prediction
nonrandom
two-liquid
(NRTL)
model
parameters
based
UNIFAC
simulations.
This
is
mean
absolute
percentage
errors
(MAPE)
conductivity
2.88,
0.355,
12.1,
10.1%,
respectively.
case
density
actual
trends
could
not
be
accurately
reflected
under
high-concentration
conditions
certain
substances.
addition,
it
was
confirmed
that
inaccurate
predictions
viscosity
commercial-scale
falling-film
evaporator
simulation
l-valine
production
led
overall
transfer
coefficient.
Therefore,
caution
required
when
predicting
missing
using
approach
significant
may
occur.
Nevertheless,
can
provide
an
initial
parameter
value
are
existing
databases
without
any
commercial
package.
