Bekokat method produces oil-free compressed air
A
Beko Technologies product story
Edited by the Engineeringtalk editorial team
Feb 9, 2009
Beko has developed a catalysis method and reliable residual-oil monitoring system for permanent high-quality compressed-air processing and monitoring.
The Bekokat system effects total oxidation of hydrocarbons, which results in oil-free compressed air.
This is achieved in a concentrated process step after compression, meaning that the complete oil removal from compressed air takes place in only one individual plant component.
This functions independently of the ambient conditions, of the initial oil concentration and of the relative humidity of the compressed air.
Bekokat treats all contaminations in the compressed air supplied by the compressor.
These are usually lubricants, oils, sulphur dioxide, carbon monoxide and so on.
They exist in the form of gases, vapours and aerosols.
Via the Bekokat method, such air components are completely converted into carbon dioxide (CO2) and water.
In the Bekokat, granular material serves as the catalytic converter, which is heated up to an operating temperature of around 150C by means of heating elements.
In the catalytic converter, the oil molecules are broken down until only one carbon atom remains.
In the final catalysis phase, the oil molecules are oxidised down to H2O and CO2.
In the next stage of the process, the purified compressed air is cooled down in a heat exchanger to around 10 to 15C above the inlet temperature, and is available for the respective application.
With Bekokat, it is possible to constantly achieve absolutely oil-free compressed air with a barely measurable maximum residual-oil content of 0.003mg/m3 of compressed air.
This is the quality required in the most demanding fields of medicine, pharmaceutics, food processing and food packaging.
Even the condensate, which accumulates during the cooling of the compressed air, is completely oil free thanks to the catalytic method, and can be introduced into the sewerage system without being processed.
So the Bekokat principle is not only efficient, but also fully environmentally friendly.
The special granular material of the Bekokat only needs to be replaced after 20,000 hours.
Solid quality monitoring of the oil-free compressed air is just as important as its constantly reliable processing, in particular in the aforementioned sensitive fields of application.
With the Oil Control residual-oil monitoring system, Beko has also achieved progress in this respect.
The Beko system allows permanent online oil-content monitoring of the flowing compressed air via measurements using an ion-exchange method.
The sensitivity of the Oil Control sensor guarantees early detection of an increasing oil content caused, for example, by a defective filter.
This prevents consequential damage to machines and products.
The device copes with the maximum requirements on the monitoring quality regarding medical and foodstuff-related compressed-air applications.
Even the most extreme limit values of a residual-oil content of 0.001mg/m can be continuously monitored online with Oil Control during running operation.
Beko Instruments offers three Oil Control versions: the Oil Control OCC for a compressor monitoring up to 100mg/m; the Oil Control OCF for monitoring subsequent to compressed-air processing from 20mg/Nm to 0.01mg/Nm; and the Oil Control OCA for the monitoring of the compressed air downstream of activated-carbon filters and catalytic converters from 1.0mg/Nm to 0.001mg/Nm.
The scope of delivery includes a probe, a metering cell and an evaluation unit and, optionally, a data logger and software.
The Oil Control monitoring system corresponds to ISO 8573.
It functions reliably in a temperature range between 0 and +60C, independent of varying flow rates and unaffected by humidity.
The admissible operating overpressure is 10 bar as standard; 16 and 45 bar are optionally possible.
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Contact Beko Technologies
Tel +44 1527 575778
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