Hydrodesulfurization of Mixed FCC Gasoil, CDU Gasoil, and Heavy Gasoline Feedstocks at the SORAZ Refinery
Doka Daoura Amadou *
Faculty of Science and Technology, University of Abdou Moumouni, Materials, Water and Environment Analysis Laboratory, BP 10662 Niamey, Niger.
ABDOUL BARI IDI Awali
Faculty of Science and Technology, University of Abdou Moumouni, Materials, Water and Environment Analysis Laboratory, BP 10662 Niamey, Niger.
CHAIBOU OUSMANE Mamane Imrana
Faculty of Science and Technology, University of Abdou Moumouni, Materials, Water and Environment Analysis Laboratory, BP 10662 Niamey, Niger.
MANZOLA Abdou Salam
Faculty of Science and Technology, University of Abdou Moumouni, Materials, Water and Environment Analysis Laboratory, BP 10662 Niamey, Niger.
*Author to whom correspondence should be addressed.
Abstract
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.
Keywords: Hydrotreating, gasoil, cetane number, desulfurization rate, residual carbon