Hydrodesulfurization of Mixed FCC Gasoil, CDU Gasoil, and Heavy Gasoline Feedstocks at the SORAZ Refinery

This paper presents a set of equipment and methods for processing (hydrotreating) gas oil from the fluidized catalytic cracking (FCC) unit and the atmospheric distillation unit. However, all the results obtained from this treatment are also presented. Since the main objective was to assess the quality of the finished diesel to determine whether it meets ECOWAS and international standards, we focused more on the physico-chemical characteristics of the product. These include average sulfur content (0.0385%), water (0.0300%), residual carbon (0.0200%), sediments (0%), ..., a cetane number of 54.25, copper strip corrosion of 1b, and many other parameters determined during this study. The desulfurization rate achieved was 89.45 %. This shows that SORAZ refinig's DHT (hydrotreating) unit was fully capable of hydrodesulfurizing diesel fuel, an essential process for improving fuel quality and reducing pollutant emissions.