Integrated process for catalytic upgrading of hydrothermal liquefaction aqueous phase in the supercritical state
David H. Kenney,
A. Mosley,
Oamfah Suwannapong
и другие.
Frontiers in Chemical Engineering,
Год журнала:
2025,
Номер
7
Опубликована: Март 14, 2025
Hydrothermal
liquefaction
(HTL)
is
a
waste
agnostic
process
that
leverages
near-critical
water
to
break
down
macromolecules,
forming
an
energy-dense
biocrude.
Some
carbon
contained
in
the
feed
lost
aqueous
phase,
where
its
high
organic
content
and
unusual
speciation
are
burdensome
for
municipal
wastewater
resource
recovery
facilities
(WRRF).
Treating
phase
adds
undesirable
cost
HTL
process,
reducing
attractiveness.
Here,
we
report
supercritical
upgrading
(AP-SCU)
as
new
catalytic
technology
reduces
of
with
co-production
supplemental
The
provides
sufficient
catalyst
activity
conversion,
energy
inefficiency
by
eliminating
need
evaporation,
extends
lifetime
relative
liquid
state.
AP-SCU
was
evaluated
at
380–440
°
C
24
MPa
representative
produced
from
treatment
food
waste.
Using
ZSM-5
bound
silica
sol,
reduced
64%–73%
corresponding
production
aromatic
hydrocarbons
including
phenol
2-pentanone.
total
nitrogen
approximately
10%.
Additionally,
facilitated
reduction
denitrogenation
reactions
compounds
produce
pyridine
which
more
closely
resemble
After
3
h
on
stream,
experienced
coke
formation,
surface
degradation
led
acid
sites
area.
balance
system
closed
through
analysis
aqueous,
solid,
gas
phases
estimate
biocrude
yield
varies
43%–57%
basis.
An
integrated
showed
operating
unit
380
id="m2">°
yielded
minimum
demand
removal
63
MJ/kg-TOC.
This
value
greater
than
conventional
WRRFs
(37.9
MJ/kg-TOC)
but
10-times
less
emerging
technologies
designed
handle
complex
feeds.
has
potential
efficient
effective
TOC
simultaneous
offset
demand.
Язык: Английский
A trash-to-treasure approach of deriving Cu-doped carbonaceous catalysts from disposable masks motivating peroxymonosulfate decomposition and organics high-efficiency mineralization
Journal of environmental chemical engineering,
Год журнала:
2025,
Номер
unknown, С. 116396 - 116396
Опубликована: Март 1, 2025
Язык: Английский