TY - JOUR
T1 - Performance control of dead-end tubular membranes fabricated with a modified phase inversion casting method
AU - Liu, Yuliang
AU - van Sint Annaland, Martin
AU - Gallucci, Fausto
PY - 2020/10/1
Y1 - 2020/10/1
N2 - A modified phase inversion casting method is employed for the formation of dead-end tubular membrane shape in a single step. Ce0.9Gd0.1O1.95-δ (CGO)-Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) composites are applied as the membrane material. Performance of the membrane is optimised by adjusting the processing conditions in the fabrication process. Long finger-like channels, which were found to promote oxygen permeation flux without decrease of the membrane mechanical strength, were obtained in the dead-end tubes by adjusting the ceramic loadings of the casting slurries. Slurries with lower viscosity provided reduced resistance for the channel growth during the phase inversion in water. The performance of the dual-phase membranes with varied CGO:BSCF ratios were compared. The membranes containing more BSCF show higher oxygen permeation fluxes with helium as sweep gas. It was also verified that CGO content played an important role in enhancing the mechanical strength of the CGO-BSCF membranes.
AB - A modified phase inversion casting method is employed for the formation of dead-end tubular membrane shape in a single step. Ce0.9Gd0.1O1.95-δ (CGO)-Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) composites are applied as the membrane material. Performance of the membrane is optimised by adjusting the processing conditions in the fabrication process. Long finger-like channels, which were found to promote oxygen permeation flux without decrease of the membrane mechanical strength, were obtained in the dead-end tubes by adjusting the ceramic loadings of the casting slurries. Slurries with lower viscosity provided reduced resistance for the channel growth during the phase inversion in water. The performance of the dual-phase membranes with varied CGO:BSCF ratios were compared. The membranes containing more BSCF show higher oxygen permeation fluxes with helium as sweep gas. It was also verified that CGO content played an important role in enhancing the mechanical strength of the CGO-BSCF membranes.
KW - Dead-end tubular membrane
KW - Dual-phase membrane
KW - Finger-like channels
KW - Oxygen separation
UR - http://www.scopus.com/inward/record.url?scp=85086729181&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2020.05.325
DO - 10.1016/j.ceramint.2020.05.325
M3 - Article
AN - SCOPUS:85086729181
SN - 0272-8842
VL - 46
SP - 22429
EP - 22437
JO - Ceramics International
JF - Ceramics International
IS - 14
ER -