Effect of stabilization temperature during pyrolysis process of P84 co-polyimide-based tubular carbon membrane for H2/N2 and He/N2 separations

International Conference on Innovative Technology, Engineering and Sciences 2018

工业技术;自然科学

Sazali, N.^1,2 ; Salleh, W.N.W.^1,2 ; Ismail, A.F.^1,2 ; Ismail, N.H.^1,2 ; Aziz, F.^1,2 ; Yusof, N.^1,2 ; Hasbullah, H.^1,2

Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai, Johor Darul Takzim

81310, Malaysia^1

Faculty of Chemical and Energy Engineering (FCEE), Universiti Teknologi Malaysia, Skudai, Johor Darul Takzim

81310, Malaysia^2

关键词: Carbon membrane;    Dip coating techniques;    Gas permeance;    Gas separations;    P84 co-polyimides;    Permeation properties;    Pyrolysis process;    Stabilization temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/342/1/012027/pdf
DOI  :  10.1088/1757-899X/342/1/012027

来源: IOP

【 摘 要 】

In this study, the effect of stabilization temperature on the performance of tubular carbon membrane was being investigated. P84 co-polyimide-based tubular carbon membrane will be fabricated through the dip-coating technique. The tubular carbon membrane performance can be controlled by manipulating the pyrolysis conditions which was conducted at different stabilization temperatures of 250, 300, 350, 400, and 450°C under N2environment (200 ml/min). The prepared membranes were characterized by using scanning electron microscopy (SEM), x-ray diffraction (XRD), and pure gas permeation system. The pure gas of H2, He, and N2were used to determine the permeation properties of the carbon membrane. The P84 co-polyimide-based tubular carbon membrane stabilized at 300°C demonstrated an excellent permeation property with H2, He, and N2gas permeance of 1134.512.87, 1287.222.86 and 2.981.28GPU, respectively. The highest H2/N2and He/N2selectivity of 380.712.34 and 431.952.61 was obtained when the stabilization temperature of 450°C was applied. It is concluded that the stabilization temperatures have protrusive effect on the carbon membrane properties specifically their pore structure, and eventually their gas separation properties.