کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
154671 456848 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Maxwell–Stefan modeling of mass transfer in solvent impregnated resins
ترجمه فارسی عنوان
ماکسوللا استفان مدل سازی انتقال جرم در رزین های آغشته به حلال
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Mass transfer in solvent impregnated resins was studied.
• Maxwell–Stefan multicomponent diffusion was applied with volume expansion.
• Mass transfer was limited by chemical reaction.
• Model well in agreement with experimental data from literature.

Solvent impregnated resins are promising for the removal of polar organic compounds from aqueous streams, but have low mass-transfer rates. A thorough understanding of the phenomena occurring inside the pores of the solvent impregnated resin is therefore required. In this study a mathematical model was developed to describe the simultaneous diffusion and reaction. The diffusion was described using the Maxwell–Stefan approach towards multi-component diffusion and included the volume-expansion of the organic phase. The model was validated using experimental data from the literature on the extraction of phenol by Cyanex923 impregnated in macro-porous polypropylene. The model described the experimental data as function of temperature and initial concentration accurately with an R2>0.96 and a regressed reaction rate constant with a confidence interval of ±6%. Analysis of the model results revealed that multi-component effects as described by the Maxwell–Stefan model were of limited importance whereas the volume expansion was essential to accurately describe the experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 132, 18 August 2015, Pages 139–149
نویسندگان
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