نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی شیمی، دانکشده پتروشیمی، دانشگاه بجنورد،بجنورد، ایران
2 گروه مهندسی شیمی، دانکشده پترو شیمی، دانشگاه بجنورد، بجنورد، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this study, the industrial production of ethylene oxide (EO) in a fixed-bed reactor was modeled and simulated using Aspen Plus V14. The catalytic oxidation of ethylene over a silver (Ag) bed requires accurate modeling due to its highly exothermic nature and the presence of side reactions. Reactor performance was evaluated under both steady-state and dynamic conditions. Thermodynamic modeling was carried out using the Soave–Redlich–Kwong (SRK) equation of state and nonlinear kinetic relations, while the effects of pressure drop (calculated using the Ergun equation), heat transfer, and catalyst deactivation were incorporated into the model. Dynamic simulation was performed over a 1100-day period, and the obtained results were compared with actual industrial data, showing good agreement. The influence of ethylene dichloride (EDC) on selectivity, with respect to acceptable EO production levels, was also investigated. Finally, optimization using artificial neural networks (ANN) in the MATLAB environment demonstrated the potential of the proposed model for improving industrial processes.
کلیدواژهها [English]
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