SILOXA gas treatment systems
GRW 50, GRW 100, GRW 200 and GRW 450

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GRW 450

Effective fermentation gas cleaning
SILOXA GRW systems are designed for adsorption of organosilicon compounds (siloxanes) and optionally
hydrogen sulphide (H2S) from fermentation gases. Whereas GRW 50 has a single compact replaceable filter
unit, the variants GRW 100, GRW 200 and GRW 450 each have two activated carbon filters connected in
series on the gas side.
In GRW 100 to GRW 450 systems, gas cleaning is performed in the first activated carbon filter (working filter).
The second filter is a safety filter which only adsorbs contaminants when the first filter’s absorption capacity
is exhausted and filter breakthrough is not detected in time. The customer is responsible for checking the load
status through regular gas sample testing between stages.
It is essential for the adsorption process that the fermentation gas to be cleaned has a defined gas humidity.
For this purpose, the systems come equipped with a tube bundle heat exchanger in which the saturated gas
is heated before it enters the activated carbon filters in order to achieve the desired relative gas humidity.
The gas cleaning systems are delivered mounted ready for use, complete with pipework and cabling, on a
stainless steel base frame for installation at ground level. All system components that come into contact with
the gas are made of corrosion-resistant stainless steel.

With regard to safety, all components have permanent technical leakproofness. The systems are also designed
for optimum efficiency, in order to keep long-term operating costs to a minimum.
The GRW series is rounded off by extensive services from SILOXA, consisting of regular maintenance and an
exceptional spare parts service.

SILOXA Engineering AG · D-45327 Essen · Telefon +49 201/28 951-0 · www.siloxa.com