Preparation of ethylene vinyl acetate membrane modified with poly(ethylene glycol) for CO2/N2 separation

Membrane technology is promising for CO2 Capture from fossil fuel power plants due to its advantageous over other technologies. In the present work, membranes from ethylene vinyl acetate (EVA) copolymer containing 28% vinyl acetate and its blends with low molecular weight poly(ethylene glycol) PEG were prepared and the separation properties of the membranes for CO2/N2 has been discussed. The possible PEG contribution in the polymeric blend was up to 20 wt% of content and the membranes with more than 20 wt% of PEG were sticky with low mechanical resistance for Gas permeation experiments. The gas transport properties of the membranes for CO2 and N2 were determined and the results were correlated with the morphology and membrane crystalinity. The CO2 and N2 permeability will increase with the addition of PEG content. CO2/N2 selectivity will increase while increasing PEG content up to 10 wt% but it falls down by more increasing PEG weight fraction in the membrane

کلیدواژه ها:

Greenhouse effect ، Global warming ، CO2 capture ، Ethylene vinyl acetate ، Poly(ethylene glycol)