Modeling and Analysis of the Process of Fractional Separation in a Rectification Column

Abstract

Today, oil, gas, and chemical industries, rectification columns are considered one of the most critical pieces of industrial equipment in the process of separating liquids into fractions. Therefore, this article presents a simulation of the separation of benzene and toluene into fractions within a rectification column using Aspen Plus software, along with an analysis of this process. This modeling approach enhances the ability to study and optimize the technological process by conducting experiments based on a modern software platform, rather than performing real-world physical and practical experiments. This research was conducted to optimize the fractionation process of the liquid mixture and increase the purity of the separated components, thereby achieving a higher level of separation efficiency. The modeling process carried out in the study improved the ability to control variables such as temperature, pressure, and reflux ratio. The optimal control of these parameters made it possible to improve the quality of the distillate and bottom product emerging from the rectification column. The results determined that it is possible to separate benzene at 90% purity and toluene at 99% purity in the rectification column. By utilizing such modern modeling methods and software, it is possible to obtain suggestions and recommendations for increasing efficiency and optimizing the substance fractionation process.