Simulation of binary gas separation with asymmetric hollow fibre membranes and case studies of air separation

2011 ◽  
Vol 90 (5) ◽  
pp. 1253-1268 ◽  
Author(s):  
Prodip K. Kundu ◽  
Amit Chakma ◽  
Xianshe Feng
Keyword(s):  
Case Studies ◽  
Gas Separation ◽  
Hollow Fibre ◽  
Air Separation

Highly gas permselective polyetherketone hollow fibre membranes using aqueous sulfuric acid solution as coagulant

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Jiping Yang ◽  
Philip J Brown
Keyword(s):  
Mechanical Properties ◽  
Sulfuric Acid ◽  
Acid Solution ◽  
Gas Separation ◽  
Sulfuric Acid Solution ◽  
Hollow Fibre ◽  
Injection Rate ◽  
Fluid Injection ◽  
Aqueous Sulfuric Acid ◽  
Membrane Morphology

AbstractHollow fibre membranes with more sponge-like morphology and improved gas permeation performance were spun from 20% polyetherketone (PEK) /sulfuric acid (H2SO4) dope solution with aqueous sulfuric acid solution as coagulant using dry-jet wet spinning process. The membrane morphology, mechanical properties and gas separation performance (hydrogen, methane and carbon dioxide) of as-spun PEK hollow fibres have been measured using SEM, Instron and gas test rig. Better cross section structures and mechanical properties in as-spun PEK hollow fibres were observed when aqueous sulfuric acid solution replaced water as coagulant (internal and external). The hydrogen/methane selectivity of up to 40 and hydrogen permeation rate of 3.65 GPU obtained in PEK hollow fibre membranes using 30% sulfuric acid solution as internal and external coagulant simultaneously at the bore fluid injection rate of 30 ml/h are higher than those reported in literatures. Furthermore the effects of bore fluid injection rate and various coagulants on the membrane morphology, mechanical properties and gas separation properties were investigated, as well.

scholarly journals Biomimetic O2 adsorption in an iron metal–organic framework for air separation

2020 ◽  
Vol 11 (6) ◽  
pp. 1698-1702 ◽  
Author(s):  
Douglas A. Reed ◽  
Dianne J. Xiao ◽  
Henry Z. H. Jiang ◽  
Khetpakorn Chakarawet ◽  
Julia Oktawiec ◽  
...  
Keyword(s):  
Gas Separation ◽  
Small Molecule ◽  
Metal Organic Framework ◽  
Air Separation ◽  
Small Molecule Activation ◽  
O2 Adsorption ◽  
Iron Metal ◽  
Metal Organic ◽  
Organic Framework

Bio-inspired motifs for gas binding and small molecule activation can be used to design more selective adsorbents for gas separation applications.

Highly stable La0.6Sr0.4Co0.2Fe0.8O3− hollow fibre membrane for air separation swept by steam or steam mixture

2015 ◽  
Vol 479 ◽  
pp. 232-239 ◽  
Author(s):  
Runze Wang ◽  
Bo Meng ◽  
Xiuxia Meng ◽  
Xiaoyao Tan ◽  
Jaka Sunarso ◽  
...  
Keyword(s):  
Hollow Fibre ◽  
Air Separation ◽  
Hollow Fibre Membrane ◽  
Fibre Membrane
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