The activated carbon has been consider one of most important materials in the industrial chemistry especially after chemical and thermal modifications . In this work, an activated carbon has been prepared from dates stone via using chemical and thermal activated approach. The study also investigated its chemical and physical properties. The activated carbon then was loaded with variety of molten salts that prepared and characterized previously. The resulted composites were tested for desulfurization purpose from preperied oil as “ model”, and, real diesel oil. This model includes using of dibenzothiophene (DBT) as sulfur (S) as sulfur source with concentration of 1000 ppm. This model was used as blank vs real oil for comparison purposes. The investigation study was carried out via ultraviolet equipment.