کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
620530 | 1455170 | 2015 | 11 صفحه PDF | دانلود رایگان |
• Separation performance of Pebax was improved by incorporating of PTMEG.
• The presence of PTMEG enhanced permeability of CO2, H2, N2 and CH4.
• Selectivity of CO2/H2 increased through the blended membranes.
• CO2/N2 and CO2/CH4 permselectivities decreased in the presence of PTMEG.
Poly(tetramethylene ether) glycol (PTMEG) is used to fabricate Pebax1657/PTMEG blended membranes for CO2 separation from H2, N2 and CH4. Permeation of the pure gases was measured at different operating temperatures from 25 to 55 °C and pressures from 4 to 16 bar. The solubility and diffusion coefficients of the tested gases were also measured at 4 bar. Permeation results showed an increment in the tested gases along with enhancement in CO2/H2 permselectivity. However, CO2/N2 and CO2/CH4 permselectivity did not improve. The membranes were characterized by SEM, DSC, FTIR and tensile analysis and considerable changes in morphological, thermal and structural properties of the membranes were observed.
Journal: Chemical Engineering Research and Design - Volume 98, June 2015, Pages 96–106