Focused on pervaporation membrane separation technology and products.
Technology
Molecular sieve pervaporation membranes use molecular sieves as the membrane‑forming material, leveraging their well‑defined pore channels to achieve separation of different components. NaA‑type inorganic molecular sieve pervaporation membranes are fabricated by growing NaA‑type molecular sieve crystals on a tubular ceramic porous support, resulting in a densely packed membrane layer with an average pore size of approximately 4.2 Å. This pore size is larger than the kinetic diameter of water molecules (~2.9 Å) but smaller than that of most organic compounds, endowing the membrane with excellent shape‑selective permeation for water. Moreover, the high aluminum content in the molecular sieve framework (Si/Al = 1) imparts exceptionally strong hydrophilicity, making NaA‑type inorganic molecular sieve pervaporation membranes particularly well suited for dehydration of organic solvents.
Product Advantages:
Based on the characteristics of the target separation system, a molecular sieve membrane with controllable performance is prepared by pre-treating the ceramic support and carefully controlling the seeding process, coating method, feedstock composition for membrane synthesis, and key process parameters.
Product Performance:
At 75°C, for a feed containing 90 wt% ethanol, the prepared membrane exhibits a separation factor greater than 10,000 and a permeate flux exceeding 3 kg/m²·h. 2 h. The product’s performance has reached an internationally advanced level.
SEM of NaA molecular sieve membrane
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The data presented on this website are partly derived from the company’s internal statistics and customer feedback and are provided for reference only. For specific product performance and applicability, please refer to the contract and technical agreement signed by both parties.
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