Membrane based process for fluid separation

A membrane based process able to separate water from alcohol, or water from alkanes, and alcohol or alkanes in between them.


The principle of the invention is to separate the chosen mixture (for instance water/ethanol) into its basic constituent by flowing it through a membrane semi- permeable to alcohols or alkanes. In the case of water/ethanol, only ethanol is able to flow through the membrane.

The process should operate at a moderate energetical cost.

Image: pictorial representation of the technology

Competitive advantage of the technology and state of the industrial property:

Different techniques exist for water/ethanol separation. But on the contrary to what exists, the process does not require a high energy input through heating, or the addition of supplementary chemicals.


Several advantages:

  • Moderate energetical cost;
  • Relative easiness of setting up a scaled-up apparatus;
  • Requirement of lower pressure compared to reverse osmosis when pure fluids are desired.


This invention is patented worldwide through a PCT application.


Our offer:

Implementation of an exclusive licensing agreement.


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Documents available on request:

  • Non-confidential Presentation
  • Publication related to the patent, published in The Journal of Chemical Physics
  • Additional information about the project available after the signature of a non-disclosure agreement.