▎ 摘　　要

NOVELTY - The method involves carrying out thermal polycondensation treatment on the catalytic slurry oil under the protection of inert gas atmosphere, where a liquid phase unit is taken out after cooling to serve as thermal polycondensation oil. The thermal polycondensation oil is mixed with an extractant for extraction separation, and is provided for standing for layering after extraction. The extractant in the lower layer liquid is steamed to obtain enriched aromatic oil. The porous graphene material is obtained, where the extractant is provided with furfural, n-octane, cyclohexane. The template agent is provided as a metal oxide nanoparticle, preferably nano-iron oxide, nano-magnesium oxide or nano-zinc oxide. The organic solvent is selected from toluene, xylene, carbon disulfide and carbon tetrachloride, preferably toluene. The inert gas is provided as nitrogen or argon. The acid used for the pickling is provided as hydrochloric acid, sulfuric acid or nitric acid. USE - Method for preparing the graphene material by using the catalytic slurry oil as raw material in a cross field of petrochemical industry and carbon nano material science. ADVANTAGE - The method provides a simple operation, and prepares the three-dimensional shell-shaped material graphene thin layer number, thus provides important significance for high value-added utilization of inferior heavy oil rich in polycyclic aromatic hydrocarbon, such as catalytic slurry oil. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view a transmission electron mirror image of the porous material graphene.