Vapor-Permeation-Aided Esterification of Oleic Acid. Application of pressurized vapor circulation system and Zeolite membrane.

Using PERVAP 2201 Membrane in Vapor Permeation Facilitated Isopropyl Propionate Production through Esterification Reaction

Vapor Phase Esterification over Sodium Acid Sulfate

Application of Pervaporation and Vapor Permeation in Environmental Protection

A review concerning pervaporation and vapor permeation membrane separation techniques used to separate liquid mixtures, is presented. Examples of polymers for membrane preparation as well as performance parameters of pervaporation and vapor permeation membranes are described. The second part of the paper presents applications of pervaporation and vapor permeation in environmental protection. At...

BD circulation and water vapor

The compact relationship between stratospheric temperatures (as well as ozone) and tropospheric generated planetary wave activity have been widely discussed. Higher wave activity leads to a strengthening of the Brewer-Dobson (BD) circulation, which results in warmer/colder temperatures in the polar/tropical stratosphere. The influence 5 of this wave activity on stratospheric water vapor (WV) is...

Evaluation of Vapor Deposition Techniques for Membrane Pore Size Modification

The suitability of three vapor deposition techniques for pore size modification was evaluated using polycarbonate track etched membranes as model supports. A feature scale model was employed to predict the pore geometry after modification and the resulting pure water flux. Physical vapor deposition (PVD) and pulsed plasma-enhanced chemical vapor deposition (PECVD), naturally, form asymmetric na...