公开(公告)号：US10913909B2

公开(公告)日：2021-02-09

申请号：US16706992

申请日：2019-12-09

Applicant: ExxonMobil Research and Engineering Company

Inventor： Liezhong Gong ,  Helen S. Wellons ,  Kuangnan Qian ,  Lisa I. Yeh ,  James W. Gleeson

IPC: C10G73/34 ,  C10G73/04 ,  C10G73/06

Abstract: Systems and methods are provided for modifying or selecting processing conditions for bright stock formation based on compositional characterization of the feedstock and/or bright stock products. In some aspects, the compositional information can include Z-class characterization of the components of a feed and/or bright stock product, optionally in combination with carbon number and/or molecular weight for the components. The compositional information can be used to select processing conditions to allow for removal and/or modification of selected components within a bright stock in order to improve throughput and/or provide desirable cold flow properties.