کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
146969 456383 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sorption enhanced reactive process for the synthesis of glycerol ethyl acetal
ترجمه فارسی عنوان
فرآیند واکنش پذیری افزایش یافته برای سنتز گلیسرول اتیل استال
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Experimental adsorption equilibrium data fitted by a competitive Langmuir model.
• Glycerol acetal produced in a fixed bed adsorptive reactor packed with Amberlyst-15.
• Dynamics of the fixed bed adsorptive reactor described by a mathematical model.

The synthesis of glycerol ethyl acetal via acetalisation of glycerol with acetaldehyde, using dimethyl sulfoxide as solvent, in a fixed bed adsorptive reactor packed with Amberlyst-15 wet, operated isothermally at 303 K, was investigated. The study comprised the determination of fundamental adsorption equilibrium data, performing several breakthrough experiments with non-reactive pairs of the species involved in the synthesis of the acetal and fitting the results by Langmuir competitive isotherms. The response of the fixed bed to reactive mixtures was also analysed demonstrating that a conversion of approximately 79% could be achieved at the steady state when an equimolar mixture of acetaldehyde, glycerol and dimethyl sulfoxide was fed to the reactor at 5.0 mL min−1. Additionally, considering the adsorption data gathered, and accounting for the reaction kinetics, the effects of the dispersive plug flow, the velocity variations due to the changes of the bulk composition and the internal and external mass transfer mechanisms, it was possible to develop a mathematical model that could effectively describe the dynamic behaviour of a fixed bed adsorptive reactor applied to the synthesis of glycerol ethyl acetal.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 258, 15 December 2014, Pages 229–239
نویسندگان
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