Air Treatment |
Our Air Treatment - Your Safety
BAUER KOMPRESSOREN is recognized as an international leader in the field of high pressure compressors and purification systems. Properly processed air is an essential prerequisite for many processes. Purification aims to reduce the undesirable gas components to a required minimum. Our purification systems are tailored precisely to your needs.
For special requirements, we have a laboratory equipped with state-of-the-art measuring equipment. Contact us and find out how BAUER products can be optimally integrated in your production process. This part of the homepage will familiarize you with our air treatment systems.
The Revolution - ROTORCOMP Compressed Air Processing!
 EcoTec Converter
Absolutely Oil-free Compressed Air - Pure Water Condensate
Our revolutionary patented filter technology produces absolutely oil-free air in accordance with DIN ISO 8573-1 and at the same time transforms oil-water condensate into water which is free of contaminants.
If you have technical inquiries please get in touch with ROTORCOMP.
 ROTORCOMP Process
Absolutely Oil-free Compressed Air - Pure Water Condensate
One single process for treatment of compressed air and oil-water condensate!
The oil (1) and the other hydrocarbon compounds contained in the compressed air are cracked in several stages using a physical-chemical process and oxidised with the addition of air and oxygen (2). The end products are pure water (3) and limited quantities of CO2.
The condensate contains <2mg/l hydrocarbons and can be directly returned to the natural water cycle in accordance with § 7 of the water resources law. It is so clean, you could even drink it. The compressed air which is produced is absolutely free of oil after passing the filter (<0,01 mg/m³).
Because of its compact design - only about 30% of the space necessary for a comparable active charcoal filter is needed - and the extremely long filter system lifetime of at least 10,000 operating hours, the ROTORCOMP filter system is extremely economical.
The completely new ROTORCOMP filter system sets new standards in economic and ecological efficiency.
| Benefits at a Glance |
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Guarantees constant oil-free air with oil / hydrocarbon concentrations of <0.01 mg/m³ |
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Economy through filter lifetime of at least 10,000 hours |
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Condensate can be disposed without further process steps |
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Gas
Pin and Channel Location Layout |
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Absolute operating reliability, as the efficiency rating of the filter is independent of initial oil concentration, plant operating temperature and moisture content of the compressed air |
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Problems of disposal and their associated costs disappear completely |
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The rest of the downstream system from the filter is protected, as there is no possibility of oil contamination |
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Space savings due to compact size of the equipment - 70% smaller than conventional systems |
Available Versions
| Version 1 - Compressor Unit |
Version 2 - Central Unit |
Version 3 - Localised Unit |
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| The filter is built into the plant directly between the compressor stage and the condensate outlets. Forscrew-type compressors, the filter is located before the final cooler |
In new or subsequent installations the plant is a core component of a central compressed air unit where generally several compressors are switched in-line. The air which is fed to the system is warmed to the necessary filter operation temperature by means of an air-to-air heat exchanger. In principle, any desired throughput volume can be implemented. |
For throughputs of up to 1.0 Nm³/min, this version is installed directly at the place of use. This compact mobile unit is suitable where oil-free compressed air is only needed from time to time and there is no oil-free pipeline network. |
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Optimal Air Treatment with BAUER's P-System
 P-Filter System
Air Cartridge Systems
for the removal of moisture and oil vapour |
Free air capacity |
Pressure range |
version mounted on
a BAUER compressor |
wall-mounted version |
[l/min] |
[m³/h] |
[cfm] |
[bar] |
| P21 |
|
-200 |
-17 |
-10 |
90 - 350 |
| P31 |
|
-350 |
-21 |
-12 |
90 - 350 |
| P41 |
|
-450 |
-27 |
-16 |
90 - 350 * |
| P61 |
P60 |
-600 |
-36 |
-21 |
90 - 350 * |
| P81 |
P80 |
-1000 |
-60 |
-35 |
90 - 350 * |
| P101 |
P100 |
-1000 |
-60 |
-35 |
90 - 350 * |
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P120 |
-2200 |
-132 |
-78 |
90 - 350 |
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P140 |
-3500 |
-210 |
-124 |
90 - 350 |
| * also available as a 420/550 bar unit |
The filter housings are designed, manufactured and examined in accordance with the regulations of AD2000 control work and DGRL97/23/EG. Other national certifications are available on request.
Air Quality
| Dew point (at 200 bar): |
-20°C |
| Dew point at 1 bar absolute (after depressurisation from 200 bar): |
-66°C |
| Oil residue at 1 bar absolute (after depressurisation from 200 bar): |
< 0,3 mg/Nm³ * |
| * only with activated carbon filter |
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The P-Filter System
The P-filter system is optimised for extended filter lifetime and high capacities. The drying agent contained in the filter cartridge absorbs water vapour.
A - DRYING
By adsorption of water vapours
B - NEUTRALISATION
By adsorption of potential oil vapours and odorous gases
C - MICROFILTRATION
SECCANT Regeneration Dryer - Safe and Low Maintenance Drying of Air
High Pressure Dryer SECCANT
Non-thermal adsorption
dryer for AIR |
Free air capacity |
Pressure range |
| Drying |
Drying and removal of oil |
[l/min] |
[m³/h] |
[cfm] |
[bar] |
| SECCANT III |
SECCANT III A |
100-1500 |
6-90 |
3,5-53 |
90 – 350 |
90 – 420 |
| SECCANT IV |
SECCANT IV A |
1500-3500 |
90-210 |
53-124 |
90 – 350 |
90 – 400 |
Reasons for drying compressed air and gases
 Compressed air and gases contain moisture and other contaminants that, if not removed from the air stream, may cause serious damage to the compressor system, tools and test pieces. Costly repairs and maintenance can result from accumulated corrosion, icing and dirt. The development of a failsafe, cost effective regeneration dryer for operating pressures of up to 420 bar is an answer to the rising demand for dry and clean high pressure compressed air and gases.
How high pressure dryers work
Drying of the air and gas stream is achieved through adsorption. The molecular sieve with very large surface area accumulates water molecules from the gas stream. This process is reversible, that is, molecular sieve saturated with water molecules can be regenerated by a desorption process. Regeneration is achieved using a partial stream (maximum 5%) of the already dried medium. The low requirement of air for regeneration is due to the large difference in pressure between the between the operating pressure of 90-350/420 bar and the regeneration pressure, which corresponds to atmospheric pressure of 1 bar / 14.5 psi absolute. The regenerating air is channeled through the saturated molecular sieve and regenerates the adsorber by means of the partial decrease in line pressure.
To guarantee continuous operation, two high pressure desiccating chambers containing drying agent cartridges operates in alternate cycles; the incoming moist gas is dried in one chamber, while the other one is regenerated at the same time. The BAUER SECCANT automatically reverses the drying/regeneration process by diverting the compressed air to the regenerated second chamber before the first reaches saturated point.
The dried air is subsequently directed through a particle filter and leaves the drying unit through a pressure-maintaining valve. Further details are listed in the category design details.
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