▎ 摘 要
NOVELTY - Preparation of adsorbent involves impregnating graphene in metal nitrate solution, drying the resulted mixture, and calcining. USE - Preparation of adsorbent for adsorbing refined petroleum solvent oil, e.g. 6#, 120# and 200# solvent oil. ADVANTAGE - The adsorbent is prepared by simple method by removing olefins and aromatics.