Adsorption Desulfurization of Simulated Diesel Fuel Using Graphene Oxide
Qahtan A. Mahmood, Jasim I. Humadi, Rafi J. Algawi, Amer T. Nawaf, Ihab Anwer Ahmed
Abstract
Graphene oxide (GO) was synthesized from graphite powder by the improved Hammers method and used for the adsorption of organosulfur compound (dibenzothiophene, DBT) from model diesel fuel. FT-IR spectroscopy, X-ray diffraction, SEM, EDX, and BET were used to characterize the GO. Several factors, such as solution pH, initial DBT concentration, adsorption contact time, adsorption temperature, and adsorbent dosage were used to test the DBT removal efficiency. The results show that the maximum removal was 96.4% at pH = 5, initial solution concentration of 200 ppm, adsorption time of 45 min, temperature of 45C and adsorbent dosage of 0.4 g/25 mL.
Topics & Concepts
Flue-gas desulfurizationGrapheneDiesel fuelAdsorptionOxideMaterials scienceChemical engineeringChemistryNanotechnologyMetallurgyOrganic chemistryEngineeringCatalysis and Hydrodesulfurization StudiesCatalytic Processes in Materials ScienceBiodiesel Production and Applications