TY - JOUR
T1 - Novel high performance poly(p-phenylene benzobisimidazole) (PBDI) membranes fabricated by interfacial polymerization for H 2 separation
AU - Shan, Meixia
AU - Liu, Xinlei
AU - Wang, Xuerui
AU - Liu, Zilong
AU - Iziyi, Hodayfa
AU - Ganapathy, Swapna
AU - Gascon, Jorge
AU - Kapteijn, Freek
N1 - Accepted Author Manuscript
PY - 2019
Y1 - 2019
N2 -
Membranes with high selectivity and permeance are needed to reduce energy consumption in hydrogen purification and pre-combustion CO
2
capture. Polybenzimidazole (PBI) is one of the leading membrane materials for this separation. In this study, we present superior novel supported PBI (poly(p-phenylene benzobisimidazole), PBDI) membranes prepared by a facile interfacial polymerization (IP) method. The effect of IP reaction duration, operating temperature and pressure on membrane separation performance was systematically investigated. The best performance was achieved for membranes prepared in a 2 h reaction time. The resulting membranes display an ultrahigh mixed-gas H
2
/CO
2
selectivity of 23 at 423 K together with an excellent H
2
permeance of 241 GPU, surpassing the membrane performance of conventional polymers (the 2008 Robeson upper bound). These separation results, together with the facile manufacture, pressure resistance, long-term thermostability (>200 h) and economic analysis, recommend the PBDI membranes for industrial use in H
2
purification and pre-combustion CO
2
capture. Besides, PBDI membranes possess high selectivities towards H
2
/N
2
(up to 60) and H
2
/CH
4
(up to 48) mixtures, indicating their potential applications in ammonia synthesis and syngas production.
AB -
Membranes with high selectivity and permeance are needed to reduce energy consumption in hydrogen purification and pre-combustion CO
2
capture. Polybenzimidazole (PBI) is one of the leading membrane materials for this separation. In this study, we present superior novel supported PBI (poly(p-phenylene benzobisimidazole), PBDI) membranes prepared by a facile interfacial polymerization (IP) method. The effect of IP reaction duration, operating temperature and pressure on membrane separation performance was systematically investigated. The best performance was achieved for membranes prepared in a 2 h reaction time. The resulting membranes display an ultrahigh mixed-gas H
2
/CO
2
selectivity of 23 at 423 K together with an excellent H
2
permeance of 241 GPU, surpassing the membrane performance of conventional polymers (the 2008 Robeson upper bound). These separation results, together with the facile manufacture, pressure resistance, long-term thermostability (>200 h) and economic analysis, recommend the PBDI membranes for industrial use in H
2
purification and pre-combustion CO
2
capture. Besides, PBDI membranes possess high selectivities towards H
2
/N
2
(up to 60) and H
2
/CH
4
(up to 48) mixtures, indicating their potential applications in ammonia synthesis and syngas production.
UR - http://www.scopus.com/inward/record.url?scp=85064212553&partnerID=8YFLogxK
U2 - 10.1039/c9ta01524h
DO - 10.1039/c9ta01524h
M3 - Article
AN - SCOPUS:85064212553
SN - 2050-7488
VL - 7
SP - 8929
EP - 8937
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 15
ER -