TY - JOUR
T1 - Carbon molecular sieve membranes for hydrogen purification from a steam methane reforming process
AU - Lei, Linfeng
AU - Lindbråthen, Arne
AU - Hillestad, Magne
AU - He, Xuezhong
N1 - Publisher Copyright:
© 2021 The Authors
PY - 2021/6/1
Y1 - 2021/6/1
N2 - Asymmetric carbon molecular sieve (CMS) membranes prepared from cellulose hollow fiber precursors were investigated for H2/CO2 separation in this work. The prepared carbon membrane shows excellent separation performance with H2 permeance of 111 GPU and an H2/CO2 selectivity of 36.9 at 10 bar and 110 °C dry mixed gas. This membrane demonstrates high stability under a humidified gas condition at 90 °C and the pressure of up to 14 bar. A two-stage carbon membrane system was evaluated to be techno-economically feasible to produce high-purity H2 (>99.5 vol%) by HYSYS simulation, and the minimum specific H2 purification cost of 0.012 $/Nm3 H2 produced was achieved under the optimal operating condition. Sensitivity analysis on the H2 loss and H2 purity indicates that such membrane is still less cost-effective to achieve ultrapure hydrogen (e.g., >99.8 vol%) unless the higher operating temperatures for carbon membrane systems are applied.
AB - Asymmetric carbon molecular sieve (CMS) membranes prepared from cellulose hollow fiber precursors were investigated for H2/CO2 separation in this work. The prepared carbon membrane shows excellent separation performance with H2 permeance of 111 GPU and an H2/CO2 selectivity of 36.9 at 10 bar and 110 °C dry mixed gas. This membrane demonstrates high stability under a humidified gas condition at 90 °C and the pressure of up to 14 bar. A two-stage carbon membrane system was evaluated to be techno-economically feasible to produce high-purity H2 (>99.5 vol%) by HYSYS simulation, and the minimum specific H2 purification cost of 0.012 $/Nm3 H2 produced was achieved under the optimal operating condition. Sensitivity analysis on the H2 loss and H2 purity indicates that such membrane is still less cost-effective to achieve ultrapure hydrogen (e.g., >99.8 vol%) unless the higher operating temperatures for carbon membrane systems are applied.
KW - Carbon molecular sieve membranes
KW - Gas separation
KW - Hydrogen purification
KW - Process simulation
KW - Steam methane reforming
UR - http://www.scopus.com/inward/record.url?scp=85102537872&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2021.119241
DO - 10.1016/j.memsci.2021.119241
M3 - 文章
AN - SCOPUS:85102537872
SN - 0376-7388
VL - 627
JO - Journal of Membrane Science
JF - Journal of Membrane Science
M1 - 119241
ER -