Applications
The same cartridge, with a different crystal, solves different separations. These three are the current focus. Other gas separation problems are reviewed on request.
1Hydrocarbon separation

Photo: UniSieve website
Polymer and olefin plants send valuable molecules to flare or fuel because recovering them by distillation costs too much. A membrane on the off-gas recovers them and frees capacity in the existing train.
- Off-gas recoveryProduct back to process
- Flare gas recoveryLess flaring
- Debottlenecking+8% capacity cited
- Feedstock flexibilityPer project
2Carbon capture

Photo: UniSieve website
Point-source capture from flue gas without amine and without a steam-hungry stripper. Sized as modular units that can start with one container on one stack, as at Qemetica in Poland.
- Point-source CO₂Cement, lime, chemicals
- CO₂ for usee.g. carbonates on site
- CO₂ for storagePreparation to spec
- Capture per system25,000 t/yr cited
3Specialty gases and emission control

Photo: UniSieve website
High-value gases where every recovered kilogram counts and every lost kilogram is an emission: refrigerants, fluorinated compounds and semiconductor process gases.
- Refrigerant recoveryReuse
- PFAS emission controlAbatement
- Semiconductor gasesRecovery
- StatusApplication development
4Industries
| Industry | Hydrocarbons | Carbon capture | Specialty gases |
|---|---|---|---|
| Polymer plants | Primary | Possible | |
| Downstream refining | Primary | Possible | |
| Cement and lime | Primary | ||
| Chemical incinerators | Primary | Possible | |
| Waste-to-energy | Primary | ||
| Biomass | Primary | ||
| Food and beverage | CO₂ supply | ||
| Refrigerants | Primary |
Industry list from unisieve.com. Primary and possible fit is this concept's reading, to be confirmed by UniSieve.
Technical data sheet
Membrane principle, system envelope, utilities and the questions we need answered about your stream. Sent by an engineer, not a mailing list.