Characterization of the post-oxidized carbon membranes derived from poly(2,4-dimethyl-1,4-phenylene oxide) and their gas permeation properties

2008 ◽  
Vol 59 (2) ◽  
pp. 190-196 ◽  
Author(s):  
H LEE ◽  
H SUDA ◽  
K HARAYA
Keyword(s):  
Gas Permeation ◽  
Carbon Membranes ◽  
Phenylene Oxide ◽  
Oxidized Carbon ◽  
Permeation Properties

scholarly journals Effect of heating rates on the microstructure and gas permeation properties of carbon membranes

2018 ◽  
Vol 14 (3) ◽  
pp. 378-381
Author(s):  
Norazlianie Sazali ◽  
Wan Norharyati Wan Salleh ◽  
Ahmad Fauzi Ismail ◽  
Kumaran Kadirgama ◽  
Mohamad Shahrizan Moslan ◽  
...  
Keyword(s):  
Heating Rate ◽  
High Performance ◽  
Room Temperature ◽  
Gas Permeation ◽  
Carbon Membrane ◽  
Heating Rates ◽  
Polymer Blending ◽  
Carbon Membranes ◽  
Permeation Properties ◽  
Fine Turning

High performance tubular carbon membrane (TCM’s) for CO2 separation were prepared by controlling the carbonization heating rates in range of 1-7 oC/min carbonized at 800 oC under Argon environment. A single permeation apparatus was used to determine the gas permeation properties of the membrane at room temperature. Fine turning of the carbonization condition was necessary to obtain the desired permeation properties. The preparation of PI/NCC-based TCM at low heating rate caused the gas permeance for the examined gas N2 and CO2 decreased whereas the selectivity of CO2/N2 increased. It was also identified that the gas permeation properties of the resultant TCM and its structure was highly affected by the heating rate. The best carbonization heating rate was found at 3oC/min for the fabrication of TCM derived via polymer blending of PI/NCC for CO2/N2 separation.

Gas permeation properties of phenylene oxide polymers

1998 ◽  
Vol 138 (1) ◽  
pp. 99-107 ◽  
Author(s):  
A. Alentiev ◽  
E. Drioli ◽  
M. Gokzhaev ◽  
G. Golemme ◽  
O. Ilinich ◽  
...  
Keyword(s):  
Gas Permeation ◽  
Phenylene Oxide ◽  
Permeation Properties

Characterization of Gas Permeation Properties of Polyimide Copolymer Membranes for OBIGGS

2014 ◽  
Vol 24 (4) ◽  
pp. 325-331
Author(s):  
Jung Moo Lee ◽  
◽  
Myung Gun Lee ◽  
Deuk Ju Kim ◽  
Sang Yong Nam
Keyword(s):  
Gas Permeation ◽  
Permeation Properties

scholarly journals Effect of Stabilization Conditions on the Fabrication of Carbon Membranes for CO2 Separation

2017 ◽  
Vol 16 (1) ◽  
Author(s):  
W. N. W. Salleh ◽  
A. F. Ismail ◽  
M. A. Rahman
Keyword(s):  
Morphological Structure ◽  
Gas Permeation ◽  
Separation Performance ◽  
Separation Processes ◽  
Carbon Membranes ◽  
Air Atmosphere ◽  
N2 Atmosphere ◽  
Stabilization Condition ◽  
Molecular Sieving ◽  
Permeation Properties

Preparation of carbon membranes has rapidly attracted much attention in gas separation processes because of thermal and chemical stabilities and exhibit superior separation performance. Carbon hollow fiber membranes (CHFM)s derived from polymer blend of polyetherimide (PEI) and polyvinylpyrrolidone (PVP) were extensively prepared through stabilization under air atmosphere followed by carbonization under N2 atmosphere. The effects of the stabilization temperature on the morphological structure and gas permeation properties were investigated by means of scanning electron microscopy (SEM) and single gas permeation system. Experimental results indicate that the transport mechanism of small gas molecules of N2, CO2, and CH4 is dominated by the molecular sieving effect. Based on morphological structure and gas permeation properties, an optimum stabilization condition for the preparation of CHFM derived from PEI/PVP was found at 300°C under air atmosphere. The selectivity of about 55 and 41 for CO2/CH4 and CO2/N2, respectively, were obtained.

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