Membrane technology, particularly polymeric membranes, is utilized in major industrial ethylene recovery owing to the very convenient and robust process. Thus, this paper, a composite membrane (CM) comprising SAPO-34 Pebax-1657 was employed conduct separation performance under two operating conditions, including temperatures pressures, ranging from 25.0–60.0 °C 3.5–10.0 bar, respectively. CO2 p...

Composite membranes were successfully prepared using a phase-inversion method. The X-ray powder diffraction (XRD) and energy dispersive X-ray (EDX) profiles has confirmed formation of 4.8 wt % Ag/poly(vinylidene fluoride-co-hexafluoropropene) (PVDF-HFP), 3 wt % Ag-MWCNTs/PVDF-HFP (EDX surface composition of Ag nanoparticles) and 1.5 wt % MWCNTs/PVDF-HFP composite membranes. The MWCNTs crystalli...

Title of Document: MODEL DEVELOPMENT AND VALIDATION OF PALLADIUM-BASED MEMBRANES FOR HYDROGEN SEPARATION IN PEM FUEL CELL SYSTEMS Atul Bhargav, Doctor of Philosophy, 2010 Directed By: Dr. Gregory S. Jackson, Associate Professor, Department of Mechanical Engineering Selective Pd-based membranes can extract near pure H2 from hydrocarbon reformate gases in liquid-fueled standalone proton exchange ...

Composite polymer membrane of polyvinyl alcohol (PVA) and acrylamide was prepared on cheesecloth support by gamma-irradiation induced free radical polymerization. The enzyme urease was entrapped in the membrane during polymerization and was cross-linked within the matrix using glutaraldehyde. The membranes could be reused a number of times without significant loss of urease activity.