公开(公告)号：US20250128999A1

公开(公告)日：2025-04-24

申请号：US18690348

申请日：2022-09-12

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Robert G. Tinger ,  Jonathan F. Carpency ,  John S. Kennedy ,  Xiaobo Zheng

IPC: C07C7/04 ,  C07C2/66 ,  C07C7/12

Abstract: Advantaged separation of xylene isomers may be realized by separating o-xylene and other components, such as styrene, from an aromatic hydrocarbon mixture comprising m-xylene and p-xylene. Separation of xylene isomers may comprise: providing an aromatic hydrocarbon mixture comprising at least o-xylene, m-xylene, and p-xylene; separating the aromatic hydrocarbon mixture into a first stream enriched in o-xylene and lean in m-xylene and p-xylene relative to the aromatic hydrocarbon mixture, and a second stream enriched in m-xylene and p-xylene and lean in o-xylene relative to the aromatic hydrocarbon mixture; and separating the second stream into a third stream enriched in p-xylene and lean in m-xylene relative to the second stream and a fourth stream comprising m-xylene.