Kinetic study of the regeneration of spent caustic via the genetic algorithm method
سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 507
فایل این مقاله در 9 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
این مقاله در بخشهای موضوعی زیر دسته بندی شده است:
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_EHEM-5-4_006
تاریخ نمایه سازی: 18 اسفند 1397
چکیده مقاله:
Background: Spent caustic contains noxious components such as sulfide species and also high chemicaloxygen demand content (COD). Oxidation of these materials to caustic and sulfate species is mostly therate-controlling step within catalytic oxidation of spent caustic.Methods: In this study, the kinetics of catalytic oxidation of spent caustic and the regeneration methodologyof the sulfidic spent caustic were investigated. The kinetics of catalytic oxidation of spent caustic was studiedin the presence of a heterogeneous catalyst. The developed mathematical model was verified via the batchbubble column reactor. The elementary and non-elementary models based on the genetic algorithm wereused to obtain the rate coefficient and kinetic order.Results: The experiments were carried out at various conditions. The results indicated that the error ofobjective function of the non-elementary and elementary models was 3.01% and 134.96%, respectively.Conclusion: According to the results, the non-elementary model had rational outcome compared to theelementary one. Also, non-elemental model is more concordance with experimental results.
کلیدواژه ها:
نویسندگان
Asadollah Karimi
Department of Chemical Engineering, Faculty of Engineering, University of Maragheh, Maragheh, Iran
Esmaeil Fatehifar
Environmental Engineering Research Center, Faculty of Chemical Engineering, Sahand University of Technology, Tabriz, Iran
Reza Alizadeh
Department of Chemical Engineering, Ahar Branch, Islamic Azad University, Ahar, Iran