کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4909267 | 1427109 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analysis of mass transfer equations during solid-liquid extraction and its application for vanilla extraction kinetics modeling
ترجمه فارسی عنوان
تجزیه و تحلیل معادلات انتقال جرم در هنگام استخراج جامد مایع و کاربرد آن برای مدل سازی سینتیک استخراج وانیلی
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کلمات کلیدی
استخراج جامد مایع، جابجایی عظیم، تجزیه و تحلیل بدون ابعاد، راه حل تحلیلی، نفوذپذیری، عصاره وانیلی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Rigorous dimensionless analysis and analytical solution of mass transfer equation (punctual and space averaged) governing the solid-liquid extraction dynamic were performed. Analytical solutions result in continuous and analytical maps between solute mass fractions in extract with respect to time which were used both for solute diffusivity estimation and process modeling. In order to validate the models, experimental extraction at equilibrium of 1 cm long vanilla beans pieces were obtained at 0.1, 0.2, 0.3 and 0.4 g vanilla/mL solvent (60% w/w ethanol-water) and 30, 40 and 50 °C; and extraction kinetics were developed at 0.1 g/mL and 30, 40 and 50 °C. Apparent equilibrium constant and solute effective diffusivity estimation were performed by linear regression on experimental results. Apparent equilibrium constant was 0.86, and diffusivities were 1.22, 1.98, and 2.43 Ã 10â11 m2/s at 30, 40 and 50 °C respectively. Diffusivities and analytical solutions predicted the experimental results at 30 and 50 °C with 0.3, and 0.4 g/mL respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Engineering - Volume 192, January 2017, Pages 36-44
Journal: Journal of Food Engineering - Volume 192, January 2017, Pages 36-44
نویسندگان
K. Castillo-Santos, I.I. Ruiz-López, G.C. RodrÃguez-Jimenes, J. Carrillo-Ahumada, M.A. GarcÃa-Alvarado,