Résumé:
Provide products of sulphur and nitrogen for the following treatment units.The majority of the units upstream use catalysts sensitive to nitrogen but especially to sulphur.The environmental standards on the quantities of sulphur present in the products of refinery are as follows:automobile gasolines 30-80 ppm since January 2005;kerosene 300 ppm;diesel 500 ppm and 15 ppm as from May 2006 and finally various types of fuel oil 300 - 500 ppm. The process of hydrosulfuration of the gas oil allows the improvement of the characteristics of Diesel oil to reach the necessary specifications and the standards of pollution.The modeling of this process would allow, inter alia, to envisage the quality of the products according to the various operational variables (temperature, pressure, speed spatiale).dans this project one makes the simulation of the process of hydrodesulfurization of the Algerian gas oil to reach the European standards by using simulation by hysis.