02087nab a2200241 4500 20260520003109.0 260224s2015 xxu ing Inglés Separation of Binary Mixtures of Propylene and Propane by Facilitated Transport through Silver Incorporated Poly(Ether-Block-Amide) Membranes mar./abr. 2015 21/09/2015 ; 21/09/2015 9 p. ; 381-390 Transcripción del resumen del autor: The separation of propylene and propane is a challenging task in petroleum refineries due to the similar molecular sizes and physical properties of two gases. Composite Poly(ether-block-amide) (Pebax-1657) membranes incorporated with silver tetra fluoroborate (AgBF4) in concentrations of 0-50% of the polymer weight were prepared by solution casting and solvent evaporation technique. The membranes were characterized by Scanning Electron Microscopy (SEM), Fourier Transform InfraRed (FTIR) and wide-angle X-ray Diffraction (XRD) to study surface and cross-sectional morphologies, effect of incorporation on intermolecular interactions and degree of crystallinity, respectively. Experimental data was measured with an indigenously built high-pressure gas separation manifold having an effective membrane area of 42 cm2. Permeability and selectivity of membranes were determined for three different binary mixtures of propylene-propane at pressures varying in the range 2-6 bar. Selectivity of C3H6/C3H8 enhanced from 2.92 to 17.22 and 2.11 to 20.38 for 50/50 and 66/34 C3H6+C3H8 feed mixtures, respectively, with increasing loading of AgBF4. Pebax membranes incorporated with AgBF4 exhibit strong potential for the separation of C3H6/C3H8 mixtures in petroleum refineries. 2 Oil and Gas Science and Technology 70 ARTICULO Surya Murali, R. 54960 Yamuna Rami, K. 54961 Sankarshana, T. 54962 Ismail, A.F. 54963 Sridhar, S. 54964 189228 189228 0 0 0 0 257047 BAAB BAAB 2026-03-06 200061460 0 200061460 2026-03-06 00:19:26 2026-03-06 ARTICULO