Solution · Azeotrope Separations
Azeotrope & Difficult Separations
Some separations simply defeat distillation: azeotropes, close-boiling mixtures, and heat-sensitive products where a reboiler is the wrong tool. Petro Sep's AZEO-SEP® pervaporation platform separates by selective membrane transport instead of relative volatility, breaking the ethanol/water and IPA/water azeotropes and reaching purities distillation cannot, with no entrainer to add and later remove. It slots into a hybrid train with existing columns to lift both purity and capacity.
Readiness: Proven, deployed
What you get
Outcomes on this vertical.
- Product purity
- 99.5 wt%
- Past the azeotrope on ethanol, IPA, and other close-boiling mixtures.
- No entrainer
- Cleaner process
- Selective membrane transport removes the need to add and later strip an entrainer.
- Debottlenecking
- More capacity
- A membrane stage on an existing column lifts throughput without a second column.
Past the point distillation stalls
An azeotrope is the ceiling distillation cannot pass, and the usual workarounds, azeotropic or extractive distillation and molecular sieves, add energy, entrainers, and complexity. Pervaporation uses a dense membrane that lets one species permeate while holding the other back, so composition moves past the azeotrope by selective transport rather than by boiling. Placed on the tail of a distillation train, AZEO-SEP carries the final purity while the column does the efficient bulk work, a hybrid that lifts purity and capacity at once.
Industries
Where this matters.
Chemical & Petrochemical
Code-stamped process equipment and patented separation for chemicals, solvents, polymers, and refineries.
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Pharmaceuticals & Life Sciences
Sanitary fabrication and patented solvent recovery for GMP and life-sciences environments.
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Food, Beverage & Biofuels
Sanitary fabrication and patented membrane separation for food, beverage, biofuels, and bio-derived streams.
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Frequently asked
Common questions.
What azeotropes can you break?
Do we replace our distillation column?
Interested in Azeotrope & Difficult Separations?
Let us scope it.
License the solution or deploy it as a turnkey plant. Either way, send the stream or the spec and we will tell you, honestly, what is proven and what is still in development.