BOUGARECHE Abderrahime, BOUZERARI Seif Eddine2025-03-162025-03-162024-07-06http://dspace.univ-skikda.dz:4000/handle/123456789/4425The Topping Unit (U10) at the Skikda Refinery (RA1K) processes crude oil using distillation. It fractionates the crude into different hydrocarbon cuts, characterized by their initial and final boiling points. This study focuses on the kerosene cut (160-219°C), extracted from the 46th tray of the atmospheric distillation column 10-C-1. Conducted using Aspen HYSYS V11 simulation software on the Topping Unit, it forms part of a final year project aimed at enhancing the quality of the kerosene produced by RA1K. The goal is to meet the specifications required for the LAB project feed while adhering to the unit's operating parameters. The key specifications for this feed include n-paraffins (C10-C13), the 5% and 95% points of ASTM D86 distillation, and molecular weight.enThesis