The effects of spinneret dimension and hollow fiber dimension on gas separation performance of ultra-thin defect-free Torlon® hollow fiber membranes

2008 ◽  
Vol 310 (1-2) ◽  
pp. 455-465 ◽  
Author(s):  
Na Peng ◽  
Tai Shung Chung
Keyword(s):  
Gas Separation ◽  
Hollow Fiber ◽  
Separation Performance ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes ◽  
Gas Separation Performance

scholarly journals Preparation and characterization of polysulfone membrane coated with poly(ether block amid) for oxygen enrichment process

2019 ◽  
Vol 15 (1) ◽  
pp. 50-53
Author(s):  
Kok Chung Chong ◽  
Yin Yin Chan ◽  
Woei Jye Lau ◽  
Soon Onn Lai ◽  
Ahmad Fauzi Ismail ◽  
...  
Keyword(s):  
Gas Separation ◽  
Hollow Fiber ◽  
Phase Inversion ◽  
Membrane Surface ◽  
Gas Permeation ◽  
Separation Performance ◽  
Hollow Fiber Membranes ◽  
Polysulfone Membrane ◽  
Fiber Membranes ◽  
Gas Separation Performance

Oxygen enriched air (OEA) is widely applied in various areas such as chemical and medical applications. Currently, cryogenic distillation and pressure swing adsorption are the two common technologies that being commercially used for i the production of OEA. However, these two techniques are not economically favorable due to required intensive energy and large built-up area. With the advancement of membrane technology in separation process, it garners the interest from both industrial and academic to explore the feasibility of membrane in gas separation. In this study, polysulfone (PSF) hollow fiber membranes with poly(ether block amide) (PEBAX) coating were used for the separation of O2/N2 gas. The hollow fiber membranes used in this work were fabricated by phase inversion spinning process using PSF pellet, along with N,N-dimetyhlacetamide (DMAc) and ethanol (EtOH) as solvent and co-solvent, whereas tetrahydrofuran (THF) as additive. The fabricated membrane exhibited dense structure in the inner layer whereas finger like layer at the outer surface. The formation of this structure was attributed by rapid phase inversion of the solution arose from strong solvent used. The EDX surface mapping analysis confirmed the formation of PEBAX coating on the membrane surface. Gas permeation study in this work illustrated that the pristine PSF membrane exhibited better gas separation performance relative to the PEBAX coated membrane with 20% higher in terms of permeance. The results obtained from this work suggested that the PEBAX coating enhanced the membrane surface but not certain to improve the gas separation performance. Further study on the PEBAX materials for the membrane coating is essential to polish its potential in gas separation.

Enhanced gas separation performance of mixed matrix hollow fiber membranes containing post-functionalized S-MIL-53

2018 ◽  
Vol 27 (3) ◽  
pp. 781-790 ◽  
Author(s):  
Haitao Zhu ◽  
Xingming Jie ◽  
Lina Wang ◽  
Guodong Kang ◽  
Dandan Liu ◽  
...  
Keyword(s):  
Gas Separation ◽  
Hollow Fiber ◽  
Separation Performance ◽  
Hollow Fiber Membranes ◽  
Mixed Matrix ◽  
Fiber Membranes ◽  
Gas Separation Performance

In-situ grown inorganic layer coated PVDF/PSF composite hollow fiber membranes with enhanced separation performance

2021 ◽  
pp. 119632
Author(s):  
Dong Zou ◽  
Seong Min Jeon ◽  
Hyun Woo Kim ◽  
Joon Yong Bae ◽  
Young Moo Lee
Keyword(s):  
Hollow Fiber ◽  
Separation Performance ◽  
Hollow Fiber Membranes ◽  
Inorganic Layer ◽  
Fiber Membranes
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