… In 1986 a pilot plant was launched for recovery of H2from synthesis gas in ammonia
production, using polyimide membranes in the form of asymmetric hollow fibers. The …

… methods for membrane production. Polymers such as polyethylene, polydimethylsiloxane,
polypropylene, polyimide… Six different methods for membrane fabrication are critically reviewed…

… In the mid 2000s, Solsep (the Netherlands) entered the SRNF market and also started
producing PI based membranes and membrane modules. Recently, Evonik (UK), after acquiring …

… Polyimide membranes allow separation of CO 2 and CH 4 gas mixture producing
methane-enriched fuel gas. Permeability of CO 2 in polyimide membrane is 13-fold higher than of …

… membrane production. This paper describes a process for the … of polyimide integrally skinned
asymmetric OSN membranes … methods for producing polyimide based OSN membranes …

… of polyimide coatings by reviewing publications, patents and commercial products. Thus, this
study can assist in selecting suitable polyimide types and production methods for polyimide …

… Using this technique the produced membranes can be adapted in the form of films, … polyimide
membrane as well of a series of mixed matrix 6FDA-6FpDADABA polyimide membranes …

… perspectives of Polyimide-based separation membranes. The paper summarizes the latest
research findings, including the advantages and limitations of Polyimide-based membranes, …

… the challenges that will impact polyimides ability to be competitive for … in polyimide membranes
but also providing membrane … by annealing the produced polyimide at high temperatures (…

… carbon membranes. Based on the theories about the transformation of polyimide precursors
to carbon membranes … Also, aromatic polyimides with high carbon content produce carbon …