Design and Calculation of a Chlorinated Container to Prevent Oil Production
نویسندگان
1 M.Sc. in Mathematics at Iran University of Science and Technology (IUST), Tehran, Iran
2 Albalqa Applied University, Huson University College, Chemical Engineering Department, Iran
3 Institute of Petroleum Engineering, School of Chemical Engineering, College of Engineering, University of Tehran, Iran
4 Department of Chemical Engineering, College of Engineering, University of Isfahan, P.O. Box 81746-73441, Isfahan, Iran
5 Department of Applied Chemistry, Science and Research Branch. Islamic Azad University, Tehran, Iran
doi
10.48309/chemm.2025.500944.1885چکیده
One of the most important problems in the catalyst regeneration operational units of refineries and petrochemical complexes is the presence of water and chlorine above the permissible limit in the hydrogen produced from these units. The aim of this article is to remove green gum material in the hydrogen gas produced from the reduction vessel. The novelty of present study is the removal rate of hydrogen produced increased from 700 ppm to 710 ppm which is unparalleled in the licensing of French companies. In this study, the possibility of removing water and chlorine was studied and finally, concerning the removal of oil formed from the unit output, the method proposed in this paper was proposed and implemented as an operational method in the catalyst regeneration unit. The results of the process simulation using Aspen software (version 1.10) showed that the chlorine present in the unit output has decreased from 1100 ppm before the changes to less than 10 ppm after the process changes. Likewise, water has decreased from 2150 ppm before the changes to 100 ppm. Due to these changes, the HCl present in the outlet was 198 ppm and it reduced the outlet pH to 4.4 and created a completely acidic environment with high corrosiveness. By completely removing the HCl, the outlet pH increased to about 9.6 and the corrosion rate of the unit outlet decreased significantly. It should be noted that applying these changes to the process increased the purity of the produced hydrogen and as a result, its amount increased from 700 ppm to 710 ppm, or in other words, the production rate increased from 20 ton/hr to 22 ton/hr.
