ETC®-MS Medium Pressure

ETC®-MS Medium Pressure class 0 oilfree compressed air through catalysis

Through the process of catalytic oxidation, ETC® converters actively transform the oil and hydrocarbons in compressed air into water and CO2. ETC® Converter continuously supply Class 0 compressed air, in accordance with ISO 8573-1, with a residual oil content of < 0.0025 mg/Nm³ as well as an oil-free condensate.
With its catalytic technology for the treatment of compressed air, ETC® provides a technical solution that has been successfully used for many years in the automotive and chemical industries.
For compressed air upstream of a converter that has an oil content of max. 200 mg/Nm³, ROTORCOMP® guarantees oil-free Class 0 compressed air downstream of the converter.

In contrast to conventional filter systems (e.g., activated carbon), the air quality is constantly maintained. Saturation and the risk of breakthrough by hydrocarbon compounds are reliably prevented.
In contrast to oil-free compressors, the compressed air quality does not depend upon the hydrocarbon content of the ambient air.
The operation of the catalytic converter is independent of the temperature and humidity of the compressed air to be treated.

The ETC® is integrated into the compressed air network downstream of the compressor. The compressed air containing oil that is flowing from the compressor is conducted over a pre-separation unit and a VS module into a plate heat exchanger The pre-separation unit protects the ETC® against liquid oil and water. The VS module extends the max. working range by 20 to 110 % of the nominal flow. The compressed air is pre-heated in the plate heat exchanger and subsequently flows into the converter vessel containing the catalyst By using an electric heater the catalyst is held at a temperature that is necessary for the catalytic reactions to take place. The oil-free compressed air leaves the converter and is cooled down again in a counter flow in the plate heat exchanger and is conducted through a particle filtration unit and the minimum pressure closing valve to a dryer.

ETC®-MS-units are able for pressure up to 45 barg and available for flow rates up to 12 Nm³/min.
Most application is to use ETC®-MP for PET-bottle-blowing.