公开(公告)号：US11786861B2

公开(公告)日：2023-10-17

申请号：US17121384

申请日：2020-12-14

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Xueliang Dong ,  Jeremy Nolan Webb

IPC: B01D53/22 ,  B01D71/64 ,  B01D71/68 ,  B01D69/02 ,  B01D69/08 ,  B01D69/12 ,  B01D67/00 ,  C08J5/18 ,  C10L3/10 ,  B01D61/36

CPC classification number: B01D53/228 ,  B01D61/362 ,  B01D67/009 ,  B01D67/0083 ,  B01D67/0088 ,  B01D67/0095 ,  B01D69/02 ,  B01D69/085 ,  B01D69/087 ,  B01D69/125 ,  B01D71/64 ,  B01D71/68 ,  C08J5/18 ,  C10L3/103 ,  C10L3/104 ,  B01D2053/224 ,  B01D2323/22 ,  B01D2323/30 ,  B01D2325/022 ,  B01D2325/20 ,  C08J2379/08 ,  C08J2381/06 ,  C08J2479/08 ,  C08J2481/06 ,  C10L2290/548

Abstract: A low cost, high selectivity asymmetric polyimide/polyethersulfone (PES) blend hollow fiber membrane, a method of making the membrane and its use for a variety of liquid, gas, and vapor separations such as deep desulfurization of gasoline and diesel fuels, ethanol/water separations, pervaporation dehydration of aqueous/organic mixtures, CO2/CH4, CO2/N2, H2/CH4, He/CH4, O2/N2, H2S/CH4, olefin/paraffin, iso/normal paraffins separations, and other light gas mixture separations. The polyimide/PES blend hollow fiber membrane is fabricated from a blend of a polyimide polymer and PES and showed surprisingly unique gas separation property with higher selectivities than either the polyimide hollow fiber membrane without PES polymer or the PES hollow fiber membrane without PES polymer for gas separations such as for H2/CH4, He/CH4, H2S/CH4, CO2/CH4 separations.

公开(公告)号：US20220184550A1

公开(公告)日：2022-06-16

申请号：US17121384

申请日：2020-12-14

Applicant: UOP LLC

Inventor： Chunqing Liu ,  Xueliang Dong ,  Jeremy Nolan Webb

IPC: B01D53/22 ,  B01D61/36 ,  B01D71/64 ,  B01D71/68 ,  B01D69/02 ,  B01D69/08 ,  B01D69/12 ,  B01D67/00 ,  C08J5/18 ,  C10L3/10

Abstract: A low cost, high selectivity asymmetric polyimide/polyethersulfone (PES) blend hollow fiber membrane, a method of making the membrane and its use for a variety of liquid, gas, and vapor separations such as deep desulfurization of gasoline and diesel fuels, ethanol/water separations, pervaporation dehydration of aqueous/organic mixtures, CO2/CH4, CO2/N2, H2/CH4, He/CH4, O2/N2, H2S/CH4, olefin/paraffin, iso/normal paraffins separations, and other light gas mixture separations. The polyimide/PES blend hollow fiber membrane is fabricated from a blend of a polyimide polymer and PES and showed surprisingly unique gas separation property with higher selectivities than either the polyimide hollow fiber membrane without PES polymer or the PES hollow fiber membrane without PES polymer for gas separations such as for H2/CH4, He/CH4, H2S/CH4, CO2/CH4 separations.