▎ 摘　　要

NOVELTY - Reducing thiophene and dibenzothiophene in diesel fuel, comprises contacting the diesel fuel with a fixed bed adsorbent comprising a carbonaceous material doped with nanoparticles of aluminum oxide (alumina) to form treated diesel fuel having a reduced concentration of the thiophene and the dibenzothiophene, where the carbonaceous material is graphene oxide, and the fixed bed adsorbent has a weight ratio of carbon to aluminum of 3:1-30:1, and a weight ratio of carbon to oxygen of 3:1-9:1. USE - The method is useful for reducing thiophene and dibenzothiophene (DBT) in diesel fuel (claimed), jet fuel, marine gas oil or motor oil. ADVANTAGE - The method utilizes the fixed bed adsorbent that: exhibits excellent sulfur compounds absorption capability; and can be regenerated.