Study on CO2/ N2 separation: the effect of rubbery polymer coating on PVDF membrane

29th Symposium of Malaysian Chemical Engineers 2016

Zuwairi, M.Z.^1 ; Rahman, S.A.^1

Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Pahang, Gambang

26300, Malaysia^1

关键词: Asymmetric membranes;    Gas permeation tests;    Gas processing plant;    Human activities;    N-methyl-2-pyrrolidone;    Phase-inversion method;    PVDF membrane;    Rubbery polymers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/206/1/012047/pdf
DOI  :  10.1088/1757-899X/206/1/012047

来源: IOP

【 摘 要 】

The emission of harmful gases such as carbon dioxide (CO2) via gas processing plant and daily human activities gave negative impacts to the environment and global inhabitant. Flat sheet asymmetric membranes were produced from homogenous solution of Poly(vinylideneflouride) (PVDF) via phase inversion method using N-methyl-2-pyrrolidone (NMP) as the solvent. While the poly ether b-amide (PEBAX) was dissolve by using of (70 ethanol and 30 water) as a solvent and and lithium chloride as a additives. The morphology and cross section of the produced membranes were observed by Scanning Electron Microscope (SEM). Then, the membranes were tested for chemical analysis to define the presence of PEBAX in the membrane by using Fourier Transform Infrared (FTIR) spectroscopy. The permeation performances of the membranes were evaluated in terms of permeability and selectivity of the membranes by using gas permeation test. Increasing the PEBAX content significantly increased the selectivity of the PVDF membrane to separate the CO2/N2gases but decreased the amount of the gases that passed through the membrane.