Simulation of Kaduna Refining and Petrochemical Company (KRPC) Crude Distillation Unit (CDU I) Using Hysys

Abstract

Optimization of Crude Distillation Unit of Kaduna Refinery and Petrochemical Company was carried out using Hysys Process Simulator. After the simulation, Atmospheric Residue has the highest volumetric flowrates of 313.7m3 /hr while AGO has the lowest with 10.90m3 /hr. Naphtha, Kerosene and Diesel has volumetric flowrates of 129.8 m3 /hr, 42.14 m3 /hr and 164.5 m3 /hr respectively. This unit models a crude oil processing facility consisting of a pre-fractionation train used to heat the crude liquids, and an atmospheric crude column to fractionate the crude into its straight run products. Preheat crude (from a preheat train) is fed to the pre-flash drum, where vapors are separated from the crude liquids. The liquids are then heated to 350 oF in the crude furnace. The pre-flash vapors bypass the furnace and are recombined, using a mixer, with the hot crude stream. The combined stream is then fed to the atmospheric crude column for separation. The crude column is a refluxed absorber, equipped with three pump around and three side stripper operations.