Journal of Physics Energy,
Год журнала:
2022,
Номер
5(1), С. 014015 - 014015
Опубликована: Дек. 19, 2022
Abstract
Glycerol
organosolv
(GO)
pretreatment
has
been
revealed
to
be
potent
in
selectively
deconstructing
the
lignocellulosic
biomass
and
effectively
enhancing
its
enzymatic
hydrolysis,
but
conventional
solid
washing
GO
lignin
extraction
processes
frequently
consume
large
amounts
of
water,
resulting
additionally
difficulty
recycling
glycerol.
In
this
study,
an
anhydrous
two-step
process
was
explored,
followed
by
membrane
ultrafiltration
glycerol
lignin.
The
results
showed
that
residual
after
atmospheric
(AGO)
necessary
for
subsequent
operation
high-solid
hydrolysis.
Washing
with
ethanol
desirable
as
alternative
water
only
a
low
content
5.2%
resided
substrate.
Membrane
helpful
extracting
AGO
from
liquor,
which
high
81.5%
made
regenerated
cellulose
(cut-off
1
kDa)
under
selected
conditions.
With
characterization
membrane-extracted
lignin,
it
observed
first
time
well-preserved
structure
G/S
type.
Moreover,
enriched
reactive
groups,
i.e.
β
-O-4′
linkages
aliphatic
hydroxyl
very
likely
due
grafting
onto
via
α
-etherification
reaction.
allowed
86%
92%
recovery
∼78%
distillation
energy
savings,
applicable
use
organic
solvents.
Recycling,
Год журнала:
2023,
Номер
8(4), С. 61 - 61
Опубликована: Июль 20, 2023
The
sustainable
management
of
lignocellulosic
agricultural
waste
has
gained
significant
attention
due
to
its
potential
for
the
production
valuable
products.
This
paper
provides
an
extensive
overview
valorization
strategies
employed
convert
into
economically
and
environmentally
manuscript
examines
conversion
routes
products
from
waste.
These
include
biofuels,
such
as
bioethanol
biodiesel,
via
biochemical
thermochemical
processes.
Additionally,
synthesis
platform
chemicals,
furfural,
levulinic
acid,
xylose,
is
explored,
which
serve
building
blocks
manufacturing
polymers,
resins,
other
high-value
chemicals.
Moreover,
this
highlights
in
generating
bio-based
materials,
including
composites,
plastics,
adsorbents.
utilization
feedstock
enzymes,
organic
acids,
bioactive
compounds
also
discussed.
challenges
opportunities
associated
with
are
addressed,
encompassing
technological,
economic,
environmental
aspects.
Overall,
a
comprehensive
waste,
highlighting
significance
transitioning
towards
circular
bioeconomy.
insights
presented
here
aim
inspire
further
research
development
field
valorization,
fostering
innovative
approaches
promoting
abundant
resource
Frontiers in Chemistry,
Год журнала:
2022,
Номер
10
Опубликована: Март 4, 2022
The
second
(lignocellulosic
biomass
and
industrial
wastes)
third
(algal
biomass)
generation
feedstocks
gained
substantial
interest
as
a
source
of
various
value-added
chemicals,
produced
by
fermentation.
Lactic
acid
is
valuable
platform
chemical
with
both
traditional
newer
applications
in
many
industries.
successful
fractionation,
separation,
hydrolysis
lignocellulosic
result
sugars'
rich
raw
material
for
lactic
This
review
paper
aims
to
summarise
the
investigations
progress
last
five
years
production
from
inexpensive
renewable
resources.
Different
aspects
are
discussed
–
type
materials,
pretreatment
detoxification
methods,
acid-producers
(bacteria,
fungi,
yeats),
use
genetically
manipulated
microorganisms,
separation
techniques,
different
approaches
process
organization,
well
main
challenges,
possible
solutions
optimization.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Янв. 2, 2024
Abstract
Unprecedented
efforts
are
being
deployed
to
develop
hydrogen
production
from
bioresources
in
a
circular
economy
approach,
yet
their
implementation
remains
scarce.
Today’s
Challenges
associated
with
the
shortage
value
chain,
lack
of
large-scale
infrastructure,
high
costs,
and
low
efficiency
current
solutions.
Herein,
we
report
route
cellulose
pulp,
integrating
biomass
fractionation
gasification
biorefinery
approach.
Softwood
sawdust
undergoes
formic
acid
organosolv
treatment
extract
cellulose,
followed
by
steam
gasification.
High-purity
hydrogen-rich
syngas
at
concentration
56.3
vol%
yield
40
g
H2
/kg
was
produced.
Char
offers
advantage
producing
free-tar
reducing
cleaning
costs
mitigating
downstream
issues.
A
comprehensive
assessment
mass
energy
balance
along
chain
revealed
an
26.5%
for
production,
requirement
111.1
kWh/kg
.
Optimizing
solvent
recovery
valorization
other
constituents
as
added-value
products
approach
would
further
improve
process
entice
its
industrial
takeoff.
