کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8074853 | 1521463 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetics of palm oil ethanolysis
ترجمه فارسی عنوان
سینتیک اتانولیز روغن نخل
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کلمات کلیدی
روغن نخل، اتانولیز، بیودیزل، مدل جنبشی، مدل ریاضی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
The effect of temperature and catalyst concentration on palm oil ethanolysis using 0.2 to 1 wt% NaOH based on the mass of palm oil was studied at temperatures ranging from 60 to 80 °C, keeping constant the ethanol to oil molar ratio (6:1). A 100% conversion of palm oil and a 96% yield of FAEE (fatty acid ethyl ester) were obtained after 60 min of reaction with 1 wt% NaOH at 70 °C. The increase of temperature between 60 °C and 70 °C on palm oil ethanolysis enhanced the reaction rate, but increase it from 70 °C to 80 °C had the contrary effect. The effect of temperature was higher during the first ten minutes of reaction. Increase of catalyst concentration between 0.2 wt% and 0.5 wt% strongly promoted the yield to FAEE, although this effect was not observed with further increments in the catalyst concentration. A second order kinetic model that predicts the behavior of the intermediate products and the effect of temperature and catalyst concentration was proposed and validated by the Fisher-Snedecor test of unbiased variances. Kinetic model parameters of palm oil ethanolysis and methanolysis were compared and demonstrated similar behavior and orders of magnitude.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 83, 1 April 2015, Pages 337-342
Journal: Energy - Volume 83, 1 April 2015, Pages 337-342
نویسندگان
P.C. Narváez, M.A. Noriega, J.G. Cadavid,