Chemical Engineering July 2020 - 13

Sulphurnet
Figure 2. Automated, self-cleaning candle
filters can now be used for filtering molten
sulfur, for example
more challenging environments,
especially over the extended service
life our customers demand, "
he says.
" We spent many years in our
R&D [research and development]
center developing what we call
Invicta technology, " Wallace continues.
" After listening to our customers
and understanding their
challenges and goals, we worked
to develop a cartridge technology
that solved as many of their issues
as possible, " he says.
" Before Invicta, the industry
had been stuck on cylindrical
cartridges, since they were first
developed, " Wallace explains.
" Even our previous patents and
technology developments had
been focused on cylindrical cartridges.
With customer requirements
in mind, we focused on
the fundamental principles of
filtration and disregarded all
thoughts of industry norms, of
what was expected. The result
was a groundbreaking, patentpending
cartridge technology
that broke with normal industry
expectations and was inclusive of
many filtration markets and applications, "
boasts Wallace.
Invicta (Figure 1) offers a wide
range of chemical and thermal
compatibility, maximum effective
surface area in the smallest footprint,
reduced media face velocity
to increase solids loading, and
longest online life without sacrificing
the reliable effluent quality,
continues Wallace. " To top it off,
lower pressure drop reduced energy
costs, and Invicta's unique
coreless design lowered the disposal
footprint for our customers,
with minimal components
and greater packing density in
shipping and disposal containers, "
he says.
" Because of its innovative design
qualities, Invicta offers up to
275% more surface area over cylindrical
filters, " says Wallace. " Although
Invicta technology is just
hitting the one-year mark in the
market, it is already revolutionizing
the industry. Our customers
are calling it the 'magic filter.' "
Automated self-cleaning
" The trend in liquid filtration
is
getting
away
from manually
cleaned filters, " says José
Sentmanat, owner of Liquid
Filtration Specialist, LLC (Conroe,
Tex.; www.filterconsultant.
com). " The old technology of
manually cleaned filters, like the
horizontal-plate filters, is losing
popularity, " he says. " First of all,
there are very few manufacturers
that offer that type of filtration
equipment, and the ones that
still do are probably wondering
where their future business will
be, " explains Sentmanat. " Yes,
there have been self-cleaning filters
for a few years now, but the
new technology is self-cleaning
candle filters. The candle filters
offer either a wet cake discharge
by backwashing the filter cake
off the candle elements or a dry
cake discharge by simply blowing
back the dried filter cake off
the candle elements, " he says.
One company offering such
technology is Sulphurnet (Culemborg,
the Netherlands; www.
sulphurnet.com). " In the last few
years, we have seen a trend in
the filtration market where users
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Molecular
Distillation
with Short Path Evaporators
for effective thermal
seperation of heat sensitive
products under high vacuum
of min. 0,001 mbar (a)
Smart process
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Chemical Engineering July 2020

Table of Contents for the Digital Edition of Chemical Engineering July 2020
