Premium
Ceramic hollow fiber‐supported PDMS composite membranes for oxygen enrichment from air
Author(s) -
Pian Changhong,
Shen Jie,
Liu Gongping,
Liu Zhengkun,
Jin Wanqin
Publication year - 2016
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.1972
Subject(s) - permeance , polydimethylsiloxane , membrane , materials science , ceramic , oxygen , air separation , fiber , composite number , composite material , chemical engineering , gas separation , selectivity , layer (electronics) , limiting oxygen concentration , chemistry , permeation , organic chemistry , biochemistry , engineering , catalysis
Oxygen‐enriched air has attracted increasing attention owing to its potential industrial application. In this work, ceramic hollow fiber‐supported polydimethylsiloxane (PDMS) composite membranes were applied in separation of oxygen from air. The influence of PDMS layer thickness, pressure difference, temperature, and feed concentration on the oxygen‐enriching performance was systematically investigated. The results indicated that the membrane (with the optimal PDMS layer thickness of 25 µm) achieved oxygen permeance of 104 GPU (1 GPU = 10 −6 cm 3 standard temperature and pressure (STP)/cm 2 s cmHg) with O 2 /N 2 ideal selectivity of 2.0 at room temperature and 0.1 MPa difference pressure. Over 10 days continuous operation, this enrichment performance kept stable, in which the oxygen concentration enriched from air can maintain about 30% by single‐stage separation through the membrane. Our work demonstrated that the ceramic hollow fiber‐supported PDMS composite membrane could be a competitive oxygen enrichment membrane for industry application. © 2016 Curtin University of Technology and John Wiley & Sons, Ltd.