Factors Affecting Enrichment of Natural Gas by Polymeric Membranes

Polymeric Gas Separation Membranes: What Makes them Industrially more Attractive?

Dehydration of Natural Gas Using Synthesized Chabazite Zeolite Membranes

ine"> Chabazite zeolite membranes were synthesized for their potential application in dehydration of natural gas. The membranes were prepared using secondary growth method on porous <span styl...

Separation of Carbon Dioxide from Natural Gas by Matrimid-Based Mixed Matrix Membranes

Spherical MgO nanoparticles and Flake-like clay minerals modified with polyaniline (PAni) are applied in Matrimid in order to fabricate mixed matrix membranes (MMMs) having improved gas separation performance. The CO2 permeability, CO2/CH4 selectivity and CO2-induced plasticization pressure of MMMs are assessed at 4-30 bar feed pressure. The chemical structure, morphology and thermal properties...

Thermodynamic Modeling of Gas Transport in Glassy Polymeric Membranes

Solubility and permeability of gases in glassy polymers have been considered with the aim of illustrating the applicability of thermodynamically-based models for their description and prediction. The solubility isotherms are described by using the nonequilibrium lattice fluid (NELF) (model, already known to be appropriate for nonequilibrium glassy polymers, while the permeability isotherms are ...

CFD Simulation of Dense Gas Extraction through Polymeric Membranes

In this study is presented a general methodology to predict the performance of a continuous near-critical fluid extraction process to remove compounds from aqueous solutions using hollow fiber membrane contactors. A comprehensive 2D mathematical model was developed to study Porocritical extraction process. The system studied in this work is a membrane based extractor of ethanol and acetone from...