Polymer hollow fibre membranes are becoming more and more used for gas separation. In this work, asymmetric hollow fibre membranes were prepared by a phase inversion technique with three commonly used commercial polymers: polyethersulfone (PES), polyetherimide (Ultem® 1000), and polyimides (Matrimid® 5218). The effect of spinning parameters (composition of the dope and bore solution, bore flow rate, air gap distance, temperature of the spinneret and coagulation bath, as well as take-up speed) on the membrane morphology and gas permeation properties was investigated. The membrane separation performances were characterized in terms of gas transport properties (perméance/selectivity) for different gases (H2, CO2, O2, N2, CH4) to relate this information with their morphology studied by scanning electron microscopy (SEM). Furthermore, dense flat membranes from the same materials were prepared by solvent casting to investigate the relationships between the gas separation performance and membrane configuration (hollow fibers vs. compact flat membrane). Finally, a comparison between the apparent skin layer thickness from O2 permeability/permeance and SEM image gave good agreement.

1.
W. J.
Koros
,
G. K.
Fleming
,
Membrane-based gas separation
.
J. Membr. Sci.
83
,
1
80
(
1993
).
2.
R. W.
Baker
in Advanced membrane technology and applications.
N. N.
Li
,
A. G.
Fane
,
W. S.
Winston Ho
,
T.
Matsuura
.
John Wiley & Sons, Inc.
,
New Jersey
,
2008
; pp.
557
80
.
3.
E.
Drioli
,
L.
Giorno
, in Comprehensive membrane science and engineering,
ITM-CNR, University of Calabria, Rende (CS), Italy: Elsevier Science
2010
.
4.
L.
Wang
,
Y. M.
Cao
,
M. Q.
Zhou
,
S. J.
Zhou
,
Q.
Yuan
,
Novel copolyimide membranes for gas separation
.
J. Membr. Sci.
305
,
338
46
(
2007
)
5.
X. Y.
Chen
,
D.
Rodrigue
,
S.
Kaliaguine
,
Diamino-organosilicone APTMDS: A new cross-linking agent for polyimides membranes
.
Sep. Pur. Techno.
86
,
221
33
(
2012
).
6.
X.Y.
Chen
,
D.
Rodrigue
,
S.
Kaliaguine
,
A Comparison between Several Commercial Polymer Hollow Fiber Membranes for Gas Separation
,
J. Membr. Sep. Techno.
6
,
1
15
(
2017
)
7.
G. H.
Bakeri
,
A. F.
Ismail
,
M.
Rahimnejad
,
T.
Matsuura
,
D.
Rana
,
The effect of bore fluid type on the structure and performance of polyetherimide hollow fiber membrane in gas–liquid contacting processes
.
Sep. Pur. Techno.
98
,
262
69
(
2012
).
8.
R. E.
Kesting
,
Synthetic Polymeric Membranes
, second ed.,
Wiley
,
New York
1985
.
9.
G. H.
Bakeri
,
A. F.
Ismail
,
M.
Rezaei
,
D.
Arzhandi
,
T.
Matsuura
.
Porous PES and PEI hollow fiber membranes in a gas–liquid contacting process—A comparative study
.
J. Membr. Sci.
475
,
57
64
(
2015
).
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