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Title: Influence of non-solvent chemistry on polybenzimidazole hollow fiber membrane preparation

Abstract

Polybenzimidazole membrane materials have attractive H 2/CO 2 separation characteristics and high thermo-chemical stability for elevated temperature synthesis (syn) gas separations. The development of PBI membranes with a thin defect-free selective layer and porous support morphology is vital to achieving industrially attractive separation performance. This work is focused on developing a fundamental understanding of the liquid-liquid demixing-based phase inversion process for asymmetric PBI hollow fiber membrane (HFM) formation. The development of industrially attractive HFMs is a challenging process due to the complex interplay between phase equilibria, phase inversion kinetics, and interfacial mass transfer that exist during the liquid-liquid demixing process. Numerous parameters including the dope, bore, and outer coagulant chemistries and compositions significantly influence the HFM morphologies produced. Here, a systematic study is conducted to investigate the phase inversion process parameters including the roles of the non-solvent solubility and diffusivity parameters with respect to the solvent and PBI on the phase inversion process. Furthermore, the influence of dope, bore and coagulant chemistries and compositions on PBI HFM morphology are investigated. As a result, the fabricated PBI HFMs are evaluated for their ideal H 2 and CO 2 permeance and H 2/CO 2 selectivity at 250 °C to benchmark their separationmore » performance.« less

Authors:
 [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE), Clean Coal and Carbon (FE-20)
OSTI Identifier:
1494478
Report Number(s):
LA-UR-18-27898
Journal ID: ISSN 0376-7388
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Membrane Science
Additional Journal Information:
Journal Volume: 577; Journal Issue: C; Journal ID: ISSN 0376-7388
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Energy Sciences; Material Science

Citation Formats

Dahe, Ganpat J., Singh, Rajinder Pal, Dudeck, Kevin Wade, Yang, Dali, and Berchtold, Kathryn A.. Influence of non-solvent chemistry on polybenzimidazole hollow fiber membrane preparation. United States: N. p., 2019. Web. doi:10.1016/j.memsci.2019.02.001.
Dahe, Ganpat J., Singh, Rajinder Pal, Dudeck, Kevin Wade, Yang, Dali, & Berchtold, Kathryn A.. Influence of non-solvent chemistry on polybenzimidazole hollow fiber membrane preparation. United States. doi:10.1016/j.memsci.2019.02.001.
Dahe, Ganpat J., Singh, Rajinder Pal, Dudeck, Kevin Wade, Yang, Dali, and Berchtold, Kathryn A.. Sat . "Influence of non-solvent chemistry on polybenzimidazole hollow fiber membrane preparation". United States. doi:10.1016/j.memsci.2019.02.001.
@article{osti_1494478,
title = {Influence of non-solvent chemistry on polybenzimidazole hollow fiber membrane preparation},
author = {Dahe, Ganpat J. and Singh, Rajinder Pal and Dudeck, Kevin Wade and Yang, Dali and Berchtold, Kathryn A.},
abstractNote = {Polybenzimidazole membrane materials have attractive H2/CO2 separation characteristics and high thermo-chemical stability for elevated temperature synthesis (syn) gas separations. The development of PBI membranes with a thin defect-free selective layer and porous support morphology is vital to achieving industrially attractive separation performance. This work is focused on developing a fundamental understanding of the liquid-liquid demixing-based phase inversion process for asymmetric PBI hollow fiber membrane (HFM) formation. The development of industrially attractive HFMs is a challenging process due to the complex interplay between phase equilibria, phase inversion kinetics, and interfacial mass transfer that exist during the liquid-liquid demixing process. Numerous parameters including the dope, bore, and outer coagulant chemistries and compositions significantly influence the HFM morphologies produced. Here, a systematic study is conducted to investigate the phase inversion process parameters including the roles of the non-solvent solubility and diffusivity parameters with respect to the solvent and PBI on the phase inversion process. Furthermore, the influence of dope, bore and coagulant chemistries and compositions on PBI HFM morphology are investigated. As a result, the fabricated PBI HFMs are evaluated for their ideal H2 and CO2 permeance and H2/CO2 selectivity at 250 °C to benchmark their separation performance.},
doi = {10.1016/j.memsci.2019.02.001},
journal = {Journal of Membrane Science},
number = C,
volume = 577,
place = {United States},
year = {2019},
month = {2}
}

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This content will become publicly available on February 2, 2020
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