NANOCOMPOSITE SEPARATION MEMBRANE FOR OLEFIN/PARAFFIN SEPARATION USING SILVER NANOPARTICLE/POLYMER NANOCOMPOSITE AND ITS PRODUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a stable separation membrane and its production method having not only high permeability and selectivity for olefins, but also stable separation performance even in a long, dry operation condition with no supply of a liquid solvent, causing no lowering phenomenon of the separation performance due to reduction of silver ions, and its production method.;SOLUTION: There is provided a nanocomposite separation membrane comprising an Ag-nanoparticle/polymer nanocomposite, and a porous support membrane supporting the nanocomposite, and separating olefins from an olefin/paraffin mixture; and a production method of the nanocomposite separation membrane comprising processes for: coating the surfaces of the silver nanoparticles; producing a nanocomposite solution by uniformly dispersing the coated silver nanoparticles into a polymer solution; and coating the nanocomposite solution on the porous support membrane.;COPYRIGHT: (C)2007,JPO&INPIT