کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6584577 | 456358 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mass transfer and kinetics of CO2 absorption into aqueous monoethanolamine/1-hydroxyethy-3-methyl imidazolium glycinate solution
ترجمه فارسی عنوان
انتقال جرم و سینتیک جذب دی اکسید کربن به محلول مونو اتانول آمین / 1-هیدروکسیت 3-متیل ایامادولیم گلیسینات
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
The aqueous blend of monoethanolamine (MEA) and 1-hydroxyethy-3-methyl imidazolium glycinate ([C2OHmim][Gly]) was considered as a promising CO2-capturing solvent because of the advantages of fast absorption rate, high absorption capacity, great thermal stability and good resistance to O2. In the present work, kinetics of the reaction of CO2 and MEA/[C2OHmim][Gly] in aqueous solutions had been investigated using a double stirred-cell absorber with a defined gas/liquid interface. The zwitterion mechanism was used as the kinetic model to describe the absorption of CO2 in the mixed solution. The kinetic and mass transfer parameters, e.g., the reaction rate constant (k2,mix), the overall reaction rate constant (kov) and the enhancement factor (E), were evaluated at different absorbent concentrations and temperature. At 303.15Â K, the values of k2 into MEA/[C2OHmim][Gly] and [C2OHmim][Gly] solution were respectively calculated as 6506.4 and 8980.6Â m3Â kmolâ1Â sâ1. The relationship between k2 and the reaction temperature was determined by the Arrhenius Equation, and was presented as:k2,mix=7.12Ã106exp-2126.3T.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 280, 15 November 2015, Pages 695-702
Journal: Chemical Engineering Journal - Volume 280, 15 November 2015, Pages 695-702
نویسندگان
Bihong Lv, Cheng Sun, Nan Liu, Wei Li, Sujing Li,