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AZEO-SEP system at the Virginia hybrid refinery deployment.

Productized platform

AZEO-SEP®

AZEO-SEP® dehydrates ethanol, isopropanol, acetonitrile, and other organic solvents past the azeotropes that conventional distillation cannot break. Where alternatives need an entrainer (benzene, cyclohexane), a third column, and the storage and disposal that comes with them, AZEO-SEP® uses pervaporation membranes selected for the specific solvent. The result is fuel-grade, pharma-grade, or chemical-grade purity in a compact skid, with one-quarter to one-half the energy of azeotropic distillation.

AZEO-SEP® delivers

Predictable performance, every install.

Productized does not mean compromised. AZEO-SEP® hits the same numbers across every commissioning, because the platform was tuned to the applications that asked for it most.

Final solvent purity
99.5 wt%
In most applications. Achievable on ethanol, IPA, methanol, and acetonitrile, past every common azeotrope (ethanol/water 95.6%, IPA/water, MeCN/water, and others).
Payback, alcohol dehydration
<1 year
On pure alcohol dehydration plants.
Payback, hybrid solvent plant
2 to 3 years
For hybrid configurations integrating AZEO-SEP with distillation or AQUA-SEP.
Energy vs azeotropic distillation
1/4 to 1/2
No phase change penalty, no entrainer recycle column.

Performance envelope

Sizes, materials, options.

Capacity scales by adding skids in parallel. Materials and code stamps configure to your jurisdiction. We document every option in the proposal package.

Purity, most applications
99.5wt%
Capacity range
0.1 to 50m³/day product
Solvents validated
EtOH, IPA, MeOH, MeCN, n-PrOH, BuOH, isobutanol, ketones
Flux rate
Up to 1kg/m²·h
Surface area per module
Up to 35
Operating temperature
75 to 85°C (167 to 185°F)
Max operating pressure
200kPa
Specific energy
100 to 200kWh/m³ feed
Membrane type
Dense, non-porous, hydrophilic
Footprint vs entrainer columns
1/2 to 1/3
Materials of construction
Sanitary 316L standard; FDA-compatible elastomers
Membrane life (typical)
2 to 4years

Built on

Pervaporation.

Selective separation of liquid mixtures, including the azeotropes that distillation cannot break.

AZEO-SEP® is the productized application of our pervaporation technology. The technology page is where engineers go for the working principle, full specs, and how it compares to alternatives.

Why this matters to a buyer

  • The technology is proven in 100+ commissioned projects, not a science experiment.
  • The system is the same platform we already ship at scale; no first-of-a-kind risk.
  • If a custom configuration is needed beyond the standard envelope, we engineer it on the same platform.

Ready to size
AZEO-SEP® for your feed?

Send us your fluid composition and a target capacity. We will send back a sized configuration, expected performance, and an indicative budget promptly.