Integrated heat treatment for interlayer pitch generation, asphaltene removal, crude and residue upgrades

摘要

A method of producing a mesophase pitch comprises flushing a vessel with at least a substantially inert gas to remove air and oxygen from the vessel; filling the vessel with a hydrocarbon feedstock; Pressurizing to an initial increasing pressure, heating the vessel to a predetermined temperature, and maintaining the vessel at a predetermined temperature for a time operable to upgrade the hydrocarbon feedstock to a product containing mesophase pitch. And steps.