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1. (WO2017040761) MEMBRANES FOR GAS SEPARATION

Pub. No.:    WO/2017/040761    International Application No.:    PCT/US2016/049868
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Sep 02 01:59:59 CEST 2016
IPC: B01D 53/14
B01D 53/22
B01D 53/62
B01D 71/02
B01D 71/06
B01J 20/22
Applicants: OHIO STATE INNOVATION FOUNDATION
Inventors: HO, W.S. Winston
SALIM, Witopo
VAKHARIA, Varun
Title: MEMBRANES FOR GAS SEPARATION
Abstract:
Membranes, methods of making the membranes, and methods of using the membranes are described herein. The membranes can comprise a support layer, and a selective polymer layer disposed on the support layer. The selective polymer layer can comprise an oxidatively stable carrier dispersed within a hydrophilic polymer matrix, wherein the oxidatively stable carrier can be chosen from a quaternary ammonium hydroxide carrier (e.g., a mobile carrier such as a small molecule quaternary ammonium hydroxide, or a fixed carrier such as a quaternary ammonium hydroxide-containing polymer), a quaternary ammonium fluoride carrier (e.g., a mobile carrier such as a small molecule quaternary ammonium fluoride, or a fixed carrier such as a quaternary ammonium fluoride-containing polymer), and combinations thereof. The membranes can exhibit selective permeability to gases. As such, the membranes can be for the selective removal of carbon dioxide and/or hydrogen sulfide from hydrogen and/or nitrogen. Further, the membranes can exhibit both oxidative stability at temperatures above 100°C.