Application and study of ProMax software in highly sour natural gas purification process

ProMax is professional process flow simulation software developed by Bryan Research & Engineering of the United States, which is used in natural gas purification and refinery process field, and has been applied by domestic companies in recent years. To verify the accuracy of the physical properties database, the kinetics and calculation of ProMax software and study the influence law of different parameters in the process of natural gas purification, a highly sour gas sweetening process was simulated by ProMax based on the Amine Sweetening Package according to the electrolytic system. The influences of operating parameters on natural gas desulfuration, decarbonization and COS hydrolysis process were calculated and analyzed, and the calculation results were compared with the actual data of the unit. The results showed that ProMax simulation software was reliable for highly sour gas sweetening process. The software can provide a guidance to the process design and operating optimization of the natural gas treating plant.