公开(公告)号：US20240068132A1

公开(公告)日：2024-02-29

申请号：US18269882

申请日：2021-11-10

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Manesh Gopinadhan ,  Stuart E. Smith ,  Nicole M. Callen ,  Clarence E. Chase ,  Kazem V. Edmond ,  Srinivasan Rajagopalan ,  Eric B. Sirota ,  Daniel J. Ryan

IPC: D01F9/145 ,  C10C3/02

CPC classification number: D01F9/145 ,  C10C3/023

Abstract: Nucleation enhancement and/or growth rate improvement of mesophase in pitch compositions derived from hydrocarbon feedstocks can be achieved by: reacting in a reaction zone a blend comprising an isotropic feed and a seeding agent, to produce a reacted pitch having a mesophase content of about 10 vol % to 100 vol %, based on the total volume of the reacted pitch, and a softening point (Tsp) below 400° C.; wherein the seeding agent is about 50 wt % or less, based on the total weight of the blend; wherein the seeding agent has a mesophase content of about 0.01 vol % to 100 vol %, based on the total volume of the seeding agent.