公开(公告)号：US20190300801A1

公开(公告)日：2019-10-03

申请号：US16357670

申请日：2019-03-19

Applicant: ExxonMobil Research and Engineering Company

Inventor： Narasimhan Sundaram ,  Hans Thomann ,  Edward W. Corcoran, JR.

IPC: C10G59/04 ,  B01D53/047 ,  C10G25/03 ,  C10G35/085 ,  B01J20/22 ,  B01J20/28

Abstract: Systems and methods are provided for performing multistage naphtha reforming with intermediate separation of aromatics using a swing adsorption process. Use of a swing adsorption process can allow aromatics to be selectively removed from the intermediate reforming effluent while reducing or minimizing the energy costs for cooling and subsequent reheating of the intermediate reforming effluent. The resulting aromatics-rich stream generated from swing adsorption can have a substantially higher aromatics content than an aromatics-rich stream generated by conventional separation methods during multi-stage naphtha reforming. In some aspects, selective thermal purging (either hot or cold) can be used to further facilitate adsorption or desorption of components by the adsorbent in the swing adsorption vessel.