公开(公告)号：US20210301211A1

公开(公告)日：2021-09-30

申请号：US16830440

申请日：2020-03-26

Applicant: ExxonMobil Research and Engineering Company

Inventor： Stuart E. Smith ,  Sebastin K. Seider ,  Kazem V. Edmond

IPC: C10B55/00 ,  C10B57/06 ,  C10G9/00

Abstract: Systems and methods are provided for controlling the morphology of coke produced during delayed coking. The morphology control is achieved in part by introducing elemental sulfur into the coker feedstock prior to coking. The elemental sulfur can be introduced into the feed under conditions so that the sulfur is well-dispersed within the feed for a sufficient period of time. This can allow for relatively even reaction of sulfur with components throughout the feed, resulting in a relatively small, uniform domain size distribution for the coke produced during delayed coking. This coke can correspond to shot coke. By producing coke with a small and relatively uniform domain size distribution, the risk of uneven heating within the coke can be reduced or minimized.