公开(公告)号：US20180318822A1

公开(公告)日：2018-11-08

申请号：US15962318

申请日：2018-04-25

Applicant: ExxonMobil Research and Engineering Company

Inventor： CHUANSHENG BAI ,  PAUL PODSIADLO ,  STEPHEN J. MCCARTHY ,  KIARA M BENITEZ

IPC: B01J38/68 ,  B01J29/48 ,  B01J29/90 ,  B01J38/02 ,  C10G45/64

Abstract: Methods for regenerating and/or rejuvenating catalysts, particularly dewaxing catalysts, as well as methods for performing dewaxing of diesel or distillate boiling range feeds with the regenerated and/or rejuvenated catalyst are provided herein. The regeneration and/or rejuvenation methods can include calcining spent catalyst followed by contacting the calcined catalyst with a solution comprising a complexing agent, which can restore hydrotreatment (HDT) activity and dewaxing activity of the spent catalyst such that it may be reused during hydroprocessing.