ISPT Techno project – Pervatech

For the ISPT Techno project: Recovery of aggressive solvents, which are difficult to separate, Pervatech modified and tested ceramic membranes. These tests showed that it is possible to tailor a membrane towards an optimum for the separation of volatile aromatic organic components from an Ethanol/Water stream. The separation took place in a pervaporation process and resulted in an increase in the reusability of the ethanol from 3 times to approximately 50 times. The cost reduction in terms of less ethanol purchases and lower incineration volumes were calculated at 90%.

Tests performed at Pervatech on the industrial feed shows the potential of the pervaporation membrane technology for the cleaning of Ethanol streams and the possibilities for tailoring membranes towards a desired output.

Please contact us, if you are interested to receive more information about our pervaporation solutions or to make an appointment to speak about our technology and the possible opportunities for your company.

Yours faithfully,

 Frans Velterop

Managing Director

Pervatech BV
The Netherlands


Ceramic Disks from COBRA



The core activity of Cobra is production and sales of porous ceramic components and related products for a diversity of applications. The technology for the production of the porous ceramics is proprietary and protected by patents.

THE POROUS CERAMIC TECHNOLOGY. The production methododology of Cobra is based on special colloidal filtration methodes, resulting in defined porous ceramic products with sharp pore size distribution, especially towards the higher tail of the Gauss-distribution curve.

THE MARKET Some important fields of application are a.o. in the use as support for ceramic membrane development, analytical applications, as intermediate product as machinable component, in sensors.

Read more about Cobra


Pervaporation using ceramic HybSi® membranes can deliver a 30 to 50 percent energy savings relative to conventional distillation. Particularly striking is that this ceramic membrane can be used up to a temperature of 150°C , while the maximum temperature for polymeric membranes is around 100°C. As a result, ceramic membranes enable a fourfold increase in throughput, thereby cutting the cost of materials up to 75 percent. That means the proper application and use of ceramic HybSi® membranes for pervaporation offers significant advantages, as demonstrated by a recently completed ISPT/NL GUTS techno project.

Please reed more in the enclosed article, which was published in the ISPT Newsflash ( and don’t hesitate to contact me if you require more information.

With kind regards,

Frans Velterop

Managing Director

Pervatech BV
The Netherlands
Tel No. : +31.547.383114
Skype : velteropfrans