Chemical Engineering February 2023 - 38

decisive process advantages, because
the physical conditions for the
separation process are nearly ideal.
The throughput is therefore up to 10
times higher than with classic crossflow
filtration, the company says.
Furthermore,
it
Bokela
is also possible to
Aquachem
process suspensions with high concentrations
or viscosities, because
there are no narrow spaces and gaps.
In particular, the use of metallic filter
media in dynamic crossflow filtration
with the BoCross filters enables versatile
and completely new process
solutions. For tasks such as classifying,
clarifying liquids and concentrating
solids, these new processes offer
powerful solutions where state-ofthe-art
technologies, such as wedgewire
screen, candle filters, backflush
filters, vibration screens, centrifuges
or membrane filters reach their limits.
Hall 8, A45 - Bokela GmbH,
Karlsruhe, Germany
www.bokela.com
Detect machine failures
before they occur
Via remote access, owners of fully
automatic filter presses (photo) from
this company can now easily view
their processes from anywhere and
measure and evaluate their process
data.
The
cloud-based
solution,
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Roxia Malibu, is a combination of
online process monitoring, maintenance,
reporting and analysis tools
with which production processes can
be optimized and operational disruptions
can be reduced. Roxia Malibu is
not just an industrial internet of things
(IIoT) portal, but also houses artificial
intelligence in the background that
optimizes the filtration cycle to the
highest level. This company's experts
help to optimize the entire filtration
process to achieve the desired cake
moisture and maximize filter capacity.
They help pinpoint bottlenecks to
avoid unplanned downtimes. Hall 8,
Stand A38 - Aquachem GmbH Separationstechnik,
Senden, Germany
en.aquachem.de
Lenzing Filtration
Membranes separate H2 from
CH4, CO2 from industrial gases
This institute has developed a technology
based on carbon membranes
that can be used to efficiently separate
hydrogen and natural gas,
38
thereby enabling both gases to
be
transported
together
through
natural gas networks and subsequently
separated from each other
as needed at the destination. Compared
to pressure-swing adsorption
(PSA) or cryogenic separation
processes, this variant is said to be
cost-effective and resistant to harsh
ambient conditions and natural gas
byproducts, such as H2S. The membranes
can concentate 5 vol.% H2
in the feed to significantly more than
90 vol.% H2 in the permeate. Due to
their excellent stability even at high
temperatures, the carbon membranes
are also suitable for the separation
of CO2 from industrial gases.
During test runs at relevant CO2
emitters (steel, lime and dolomite
works, biogas plants), CO2 concentrations
of more than 97% could be
achieved. This makes it possible to
further utilize the separated CO2 as
a raw material for non-fossil fuels
or chemicals, for example. Hall 7,
Stand L36 - Fraunhofer-Institut für
Keramische Technologien und Systeme
IKTS, Hermsdorf, Germany
www.ikts.fraunhofer.de
Improved backwashing of
filter candles
Last year, this company filed a patent
for a new cake and precoat filter candle
design. The target was to develop
a support structure that is inexpensive
to fabricate and that at the same time
provides the lowest possible flow barrier,
allowing for a backwash flow as
high as possible throughout the total
candle length. The CakeFil technology
(photo) assures real process automation
without interruption periods or
any manual operation. The discharge
functions either as slurry or, after an
optional previous cake washing and
drying step, as dry-to-the-touch discharge.
Beside its precoat and cakebuilding
technology, the company is
also exhibiting its reliable backwashfiltering
system for finest filtration of
fluids for industry and for water treatment.
The OptiFil and ViscoFil technologies
ensure the highest process
continuity at the lowest backwash
quantities. Hall 7, Stand L12 - Lenzing
Filtration, Lenzing, Austria
www.lenzing-filtration.com
n
Gerald Ondrey
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
FEBRUARY 2023
http://www.bokela.com http://www.ikts.fraunhofer.de http://en.aquachem.de http://www.lenzing-filtration.com http://WWW.CHEMENGONLINE.COM
Chemical Engineering February 2023

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