A mathematical model considering mass and momentum transfer was developed for simulation of ethanol dewatering via pervaporation process. The process involves removal of water from a water/ethanol liquid mixture using a dense polymeric membrane. The model domain was divided into two compartments including feed and membrane. For a description of water transport in ...

mfi zeolite membranes were prepared on porous α-alumina substrates, using secondary growth of nano-seeded layers. the resulting membranes were characterized by means of scanning electron microscopy (sem), x-ray diffractometry (xrd), and pervaporation performance tests for separation of benzene, toluene and xylene (btx) mixture from contaminated water. the morphology, thickness, homogeneity, cry...

Biodiesel production through chemical interesterification of triglycerides requires an excess methyl acetate that must be recovered once the reaction is finished and catalyst neutralized. The present study concerns with purification by pervaporation. PERVAP 2201 was chosen as pervaporation membrane due to its high hydrophilic character makes it suitable for elimination water in acetate. Runs we...

Organizing nanoparticles (NPs) into periodic structures is a central goal in materials science. Despite progress the last decades, it still challenging to produce macroscopic assemblies reliably. In this work, analysis of pervaporation-induced organization gold octahedra supercrystals within microfluidic channels using combination X-ray scattering techniques and FIB-SEM tomography reported. The...

Polymer-based membranes have advanced or novel functions in the various membrane separation processes for liquid and gaseous mixtures, such as gas separation, pervaporation (PV), reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), microfiltration (MF), other critical applications of water purification, solvent concentration, recovery [...]

Highly efficient PDMS based membranes with a new type of fluorinated MOF-808 were successfully prepared and used for the first time in pervaporation (PV). Two types ligands i.e. trifluoroacetic acid (TFA) pentafluoropropionic (PFPA) during MOF synthesis. These slightly different size chemical character influenced material properties membranes, roughness, contact angle, surface free energy, ther...

We explore air invasion in an initially water-filled dead-end compliant microchannel containing a constriction. The phenomenon is driven by the pervaporation of liquid present channel through surrounding medium. penetration intermittent, jerky, and characterised stop-and-go dynamics as bubble escapes demonstrate that this sequence arrest jump due to elastocapillary coupling between air-liquid i...