The pervaporation membrane is a high-performance separation material based on a hollow fiber molecular sieve structure. A dense zeolite membrane layer is grown in situ on the surface of a ceramic hollow fiber support, with a thickness of approximately 10 μm. Multiple hollow fiber membranes are assembled into a single module through integrated encapsulation.
This product offers high flux, excellent selectivity, and outstanding energy efficiency. It performs particularly well in organic solvent dehydration and separation, providing an efficient alternative to conventional distillation processes.
The pervaporation membrane operates based on selective adsorption and diffusion mechanisms. Driven by vacuum or concentration differences, specific components in a mixture are preferentially adsorbed by the molecular sieve membrane and then diffuse through the membrane pores to the other side, where they are released in vapor form.
The hollow fiber structure significantly shortens the mass transfer path and reduces resistance, resulting in higher permeation flux and improved separation efficiency for effective dehydration and purification.
l High Energy Efficiency: Saves more than 50% energy compared to traditional separation technologies.
l Environmentally Friendly: No need for additional entrainers or third components, avoiding secondary pollution.
l High Recovery Rate: Single-pass recovery can exceed 99%, maximizing resource utilization.
l Long Service Life: Operational lifespan of over 5 years with stable and reliable performance.
l High Flux Performance: Hollow fiber design provides 2–3 times higher flux than tubular membranes.
l High Packing Density: ≥200 m²/m³, significantly increasing processing capacity.
l Optimized Structure: One-piece encapsulation eliminates the need for O-ring sealing, reducing system complexity.
l Excellent Separation Performance: System discharge wastewater COD < 5000, meeting environmental standards.
l Easy Installation and Maintenance: Compact footprint, high level of automation, and simple operation management.
l Alcohol Systems: Dehydration and separation of methanol, ethanol, isopropanol, tert-butanol, and similar solvents.
l Ether Systems: Processing of dimethoxyethane, MTBE, ETBE, and related compounds.
l Ketone Systems: Separation and purification of acetone, butanone (MEK), and methyl isobutyl ketone (MIBK).
l Ester Systems: Dehydration of methyl acetate, ethyl acetate, butyl acetate, and ethylene carbonate.
l Hydrocarbon Systems: Separation of methane, ethane, and other hydrocarbon mixtures such as C6 fractions.
l Aromatic Compounds: Separation and purification of benzene, toluene, and similar systems.
l Other Organic Systems: Suitable for complex solvents such as tetrahydrofuran (THF), acetonitrile, and more.
| Item | Parameter |
| Energy Saving | ≥50% energy saving compared to conventional separation technologies |
| Single-Pass Recovery | ≥99% |
| Service Life | ≥5 years |
| Membrane Structure | Hollow fiber with thin wall and low mass transfer resistance |
| Permeation Flux | 2–3 times higher than tubular molecular sieve membranes |
| Packing Density | ≥200 m²/m³ (over 3 times that of tubular molecular sieve membranes) |
| Sealing Technology | One-piece encapsulation, no O-ring required |
| Effluent Quality | Wastewater COD ＜ 5000 |
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