Product and process description

1/1

SILOXA adsorption dryer, models 400 and 700
(further models on request)
Sizes/system components

Raw gas
Rohgas
Filter 1 Adsorption
Filter 1 adsorption

Filter 2 Regeneration
Filter 2 regeneration

– 2 performance classes, with gas flow rates
of 400 Nm³/h and 700 Nm³/h
– The components are mounted on a frame.
Design features (basic version)

Clean gas
Reingas

Regeneration gas
Regenerationsgas

SILOXA adsorption drying schematic drawing

Product description
In the SILOXA adsorption drying systems, gas drying
is performed by two separate adsorber vessels. The
two vessels are mounted on a metal frame and are
used alternately. The vessels each contain a packed
bed of a high-quality desiccant which allows dew
points of up to -80°C to be attained.
In the adsorption process, damp gas is passed
through a filter which retains the moisture. The water
molecules (adsorbates) are deposited in the centres
and on the specific surfaces of the desiccant. When the
desiccant is saturated with water, the system switches
over to the second, regenerated filter. Meanwhile, the
water-saturated filter is processed.
The water-saturated filter is regenerated using a process
known as heat regeneration. Dry gas (regeneration gas)
is heated and passed through the filter bed of the filter
being processed. Increasing the temperature enables
moisture to be removed from the desiccant. The gas
then passes through a tube bundle heat exchanger
where the water condenses out. After this, the regeneration gas is reheated and goes through the cycle
again. Before beginning the regeneration cycle again,
the heated filter is cooled to return it to its initial operating status.

– Frame
– 2 adsorption vessels
– Desiccant
– Regeneration gas processing
– Condensate trap
– Insulation against heat and cold
– Measurement and control unit
– Control cabinet
– E, I&C system
– Factory assembly
– Technical documentation
Options
– Gas pre-cooling
– Water cooler
– Components in contact with fluids comply with ATEX
(Zone 1G) requirements
– Installation in an EX Zone possible on request
Consumption costs
– No additional external or inert gases are required for
the regeneration
– High energy efficiency is achieved through optimal
adjustment of the energy input
– Dew-point-controlled regulation ensures efficient
utilisation of the adsorption vessel
Service
– As well as installation, SILOXA also offers full regular
maintenance and supply of spare parts for the adsorption dryers.

Issued: 11/2012, subject to technical modifications.

Siloxa Engineering AG
Katernberger Strasse 107 | 45327 Essen | Germany
Tel. +49 (02 01) 2 89 51-0 | Fax +49 (02 01) 2 89 51-29
E-mail: vertrieb@siloxa.com | Web: www.siloxa.com