1-프로판올/n-부탄올 혼합용매로부터 제조된 Pebax-2533 판형 분리막의 CO2 투과거동 연구
CO₂ permeation behavior of Pebax-2533 plate membranes prepared from 1-Propanol/n-Butanol mixed solvents
(Received October 3, 2013, Revised October 7, 2013, Accepted October 9, 2013)
Abstract
In the present study, Pebax-2533 plate membranes were prepared by drying precursor solutions which wereobtained by dissolving Pebax-2533 polymer in 1-Propanol/n-Butanol mixed solvents. And then the CO2 and N2 permeationbehaviors were tested by using a time-lag system. The prepared Pebax-2533 plate membranes showed a considerable CO2/N2separation performance : the CO2 permeability was 130 to 288 barr, and the CO2/N2 permselectivity was 5-8. The CO2 permeationdata obtained by varying feed pressure, permeation temperature, and solvent composition announced that not onlythe CO2 sorption but also the CO2 diffusion is equally important in the overall CO2 permeation.
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10.H. J. Kim., "Gas Permeation Properties of Carbon Dioxide and Methane for PEBAXTM/TEOS Hybrid Membranes", Korean Chem. Eng. Res., 49, 461 (2011).
11.R. Tamaki, Y. Chujo, K. Kuraoka, and T. Yazawa, "Application of Organic-Inorganic Polymer Hybrids as Selective Gas Permeation Membranes", J. Mater. Chem., 9, 1741 (1999).
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15.H. Yasuda and A. Peterlin, "Gas permeability of deformed polyethylene films", J. Appl. Polym. Sci., 18, 533 (1974).