公开(公告)号：US20250019591A1

公开(公告)日：2025-01-16

申请号：US18708893

申请日：2022-09-14

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Stuart E. Smith ,  Gaurav Agrawal ,  Mustafa Al-Sabawi ,  David T. Ferrughelli

IPC: C10C3/08 ,  C10C3/00 ,  C10G21/00

Abstract: Processes comprising: heat treating a heavy hydrocarbon feedstock in a heat treatment unit to produce a first effluent comprising a heat treated product; at least partially removing a mixture of gas and distillate from the first effluent in a first separation unit to produce a second effluent comprising a separation bottom product; deasphalting the second effluent in a second separation unit in the presence of a first solvent to produce: a soluble product fraction comprising a first portion of the first solvent, a deasphalted oil (DAO) product, and a first pitch product; an insoluble product fraction comprising a second portion of the first solvent and a portion of the first pitch product; and at least partially removing the second portion of the first solvent from the first pitch product in a third separation unit to produce a purified pitch product.