公开(公告)号：US20170137350A1

公开(公告)日：2017-05-18

申请号：US15348010

申请日：2016-11-10

Applicant: ExxonMobil Research and Engineering Company

Inventor： Brian WEISS ,  Benjamin A. McCOOL

IPC: C07C7/144 ,  B01D71/02 ,  C07C5/27 ,  B01D67/00 ,  B01D69/08 ,  C07C7/14 ,  B01D69/12 ,  B01D61/02

CPC classification number: B01D61/025 ,  B01D53/228 ,  B01D61/002 ,  B01D61/007 ,  B01D67/0067 ,  B01D69/08 ,  B01D69/12 ,  B01D69/125 ,  B01D71/021 ,  B01D71/022 ,  B01D2323/30 ,  B01D2325/022 ,  B01D2325/04 ,  C02F1/441 ,  C02F2103/08 ,  C07C5/2732 ,  C07C7/005 ,  C07C7/14 ,  C07C7/144 ,  C07C15/08

Abstract: Asymmetric membrane structures are provided that are suitable for hydrocarbon reverse osmosis of small hydrocarbons. Separation of para-xylene from ortho- and meta-xylene is an example of a separation that can be performed using hydrocarbon reverse osmosis. Hydrocarbon reverse osmosis separations can be incorporated into a para-xylene isomerization and recovery system in a variety of manners.