Fabrication of Dual-layer Matrimid®/PSf Hollow Fiber Membrane and Its Gas Separation Performance

Chem. J. Chinese Universities

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Fabrication of Dual-layer Matrimid^®/PSf Hollow Fiber Membrane and Its Gas Separation Performance

DING Xiao-Li^1,2, CAO Yi-Ming^1*, ZHAO Hong-Yong^1,2, WANG Li-Na¹, YUAN Quan¹

1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China

Received:2008-04-08 Revised:1900-01-01 Online:2008-10-10 Published:2008-10-10
Contact: CAO Yi-Ming

Abstract

Abstract: Dual-layer Matrimid^®/PSf hollow fiber membranes for gas separation were fabricated via co-extrusion technology. The hollow fiber membranes have an ultrathin dense-selective layer of 0.21 μm. The hollow fiber membranes have a CO₂ permeance of 46.29 GPU with a CO₂/CH₄ selectivity coefficient of 51.39 at 25 ℃and 0.5 MPa. And the hollow fiber membranes have an O₂ permeance rate of 6.38 GPU with an O₂/N₂ selectivity coefficient of 7.13 at 25 ℃and 0.5 MPa. The effects of the test temperature and the feed pressure on the gas separation performance were investigated. Finally, the aging phenomena were investigated.

Key words: Ultrathin dense-selective layer, Dual-layer hollow fiber membranes, Gas separation

CLC Number:

O631
TQ028.8

TrendMD:

DING Xiao-Li^1,2, CAO Yi-Ming^1*, ZHAO Hong-Yong^1,2, WANG Li-Na¹, YUAN Quan¹. Fabrication of Dual-layer Matrimid^®/PSf Hollow Fiber Membrane and Its Gas Separation Performance[J]. Chem. J. Chinese Universities, doi: .

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Fabrication of Dual-layer Matrimid^®/PSf Hollow Fiber Membrane and Its Gas Separation Performance

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