Optimal preparation of low-cost and high-permeation NaA zeolite membrane for effective ethanol dehydration

In this work, low-cost and high permeation NaA zeolite membrane was successfully prepared on kaolinite support by in-situ crystallization using secondary growth method. The effect of synthesis conditions including temperature time crystallization, water ratio studied aiming to improve the quality performance membrane. thoroughly characterized many techniques such as X-ray diffraction, scanning electron microscopy infrared spectroscopy, Brunauer-Emmett-Teller specific surface area zeta potential investigate layer deposition. exhibits flux 8.49 kg m −2 h−1 separation factor 10900 for dehydration 90 wt% ethanol pervaporation at 75 °C.