C – Journal of Carbon Research,
Год журнала:
2024,
Номер
10(2), С. 48 - 48
Опубликована: Май 22, 2024
Based
on
recent
interest
and
the
importance
of
ongoing
climate
change
catastrophe,
this
article
provides
basics
global
carbon
cycle
modelling
as
required
for
assessment
degree
neutrality
biomass
energy,
its
underlying
dynamics.
It
is
aimed
at
clarifying
question
“Are
fuels
neutral?”.
The
“Combined
Energy
Biosphere
Model”
(CEBM)
computes
annual
flows
including
growth
decay
plants
2.5
×
2.5°
grid
elements
continents’
surface
offers
detailed
results
changes
after
implementation
large-scale
energy
strategies
worldwide.
main
(and
possibly
unexpected)
effect
long-term
depletion
soil
organic
compartment
extraction
fuels.
When
comparing
CEBM
model
runs
using
(i)
sources
(ii)
carbon-free
(such
solar
or
wind),
it
becomes
quantitatively
clear
already
theoretical
level
(i.e.,
even
without
taking
into
account
efficiency
losses)
that
only
“half
neutral”
ideally
assumed,
to
express
a
rule
thumb—mainly
because
depletion.
Still,
will
play
an
important
role
when
fighting
warming,
if
efforts
lower
demand
are
preferable
fundamental
strategy.
ACS Omega,
Год журнала:
2024,
Номер
9(29), С. 31803 - 31813
Опубликована: Июль 9, 2024
Co-pyrolysis
of
coal
and
biomass
is
an
efficient
way
to
utilize
resources.
This
study
investigates
the
co-pyrolysis
behavior
kinetics
using
thermogravimetric
analysis
(TGA)
TG-FTIR.
exhibits
a
synergistic
effect.
When
25%,
weight
loss
increases,
showing
positive
50%,
it
negative
Increasing
heating
rate
can
promote
generation
involves
two
central
pyrolysis
stages:
stage
III
(250-380
°C)
IV
(380-550
°C).
Friedman,
FWO,
KAS,
STA
methods
are
used
calculate
activation
energy
for
stages
IV.
The
(
Green and Low-Carbon Economy,
Год журнала:
2024,
Номер
unknown
Опубликована: Май 17, 2024
CO2
emissions
from
the
combustion
of
fossil
fuels
represent
largest
anthropogenic
disruption
natural
global
carbon
cycle
and
lead
to
an
undesirable
increase
in
atmospheric
levels.
The
so-called
"carbon-neutral"
renewable
energy
source
biomass
appears
be
a
promising
replacement
for
fuels.
"Combined
Energy
Biosphere
Model"
(CEBM),
was
developed
as
method
calculating
content
after
intensive
use
biomass.
It
includes
(i)
biosphere
part
computing
annual
on
2,433
grid
elements
covering
continents’
plant
mass
soil,
well
(ii)
economic
119
countries.
As
history
understanding
(including
quantification
growth
decay
by
formulae,
inclusion
deforestation,
fuel
fertilizer
effect)
shows,
such
model
(as
CEBM)
provides
needed
methodology
assess
net
effects
large-scale
plant’s
atmosphere.
Results
show
that
(in
systemic
view)
is
“only
half
neutral”
previously
thought,
even
principal
level.
conclusions
indicate
(even
if
valuable
mitigation
strategy)
its
potential
limited.
When
interpreting
CEBM
scenarios,
very
first
priority,
reducing
current
demand
most
highly
preserving
climate.
The Canadian Journal of Chemical Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 6, 2025
Abstract
The
radiant
syngas
cooler
(RSC)
has
the
potential
to
significantly
enhance
energy
efficiency
as
a
critical
heat
recovery
device
in
entrained‐flow
coal
gasification
technology.
dimensions
of
RSC
have
direct
impact
on
flow
and
transfer
processes.
In
this
study,
an
analysis
was
conducted
evaluate
transfer,
ash
deposition,
thermal
structural
deformation
characteristics
based
fluid‐thermal‐structure
interaction
method
RSC.
simulation
results
exhibit
high
degree
correlation
with
industrial
data.
indicate
that
increase
length‐diameter
ratios
decreases
area
recirculation
zone.
Ash
deposition
thickness
increases
length–diameter
ratios.
A
maximum
15.2
mm
while
ratio
is
9.
effect
amplified
transfer.
top
bottom
structures
observed
without
decreasing
deposition.
For
optimized
structure,
inlet
temperature
load
corresponding
layer
thickness,
limited.
current
can
serve
reference
for
integral
optimal
design
RSC Advances,
Год журнала:
2025,
Номер
15(11), С. 8169 - 8179
Опубликована: Янв. 1, 2025
The
migration
and
enrichment
of
critical
metals
in
coal
gasification
as
the
temperature
increases
from
1000
°C
to
1500
are
revealed
this
work,
which
beneficial
development
metal
extraction
strategies
slag.
