کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6631712 | 1424944 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Intensified one-step biodiesel production from high water and free fatty acid waste cooking oils
ترجمه فارسی عنوان
تولید یک مرحله ای تولید بیودیزل شدید از روغن های پخت و پز با کیفیت بالا و اسید چرب آزاد
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کلمات کلیدی
روغن پخت و پز زباله، کاتالیز پایه، اسیدهای چرب آزاد، محتوای آب، مدل ریاضی، جوان سازی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Homogenous alkali-catalysed biodiesel production from waste cooking oil (WCO) requires acid-catalysed pre-treatment steps due to high free fatty acid (FFA) contents. This study investigated strategies to obtain high yields of fatty acid methyl esters (FAME) from one-step base-catalysed transesterification of WCO containing high levels of free fatty acids (up to 5.5â¯wt%) and 3â¯wt% of water by altering operating conditions. About 98% FAME yield in homogeneous NaOCH3-catalysed transesterification was obtained within 5â¯min reaction time at methanol to WCO molar ratios of 12:1-18:1 and 3â¯wt% catalyst loading for WCO containing 1.53% FFA and 0.12â¯wt% water. It was found that high molar ratios of methanol to oil (>6:1) could prevent saponification. At 5.5â¯wt% FFA and 3â¯wt% water contents, â¥96.5% FAME yield was achieved at 18:1â¯M ratio of methanol to WCO within 5â¯min compared to only 62.8â¯Â±â¯1.2% for a molar ratio of 6:1. Mathematical modelling (MATLAB) was used to predict FAME yields at various conditions and validated using experimental data. Sets of conditions identified in this study can be used to rapidly produce biodiesel from low quality triglyceride sources in a single step base-catalysed process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 220, 15 May 2018, Pages 567-574
Journal: Fuel - Volume 220, 15 May 2018, Pages 567-574
نویسندگان
Valentine C. Eze, Anh N. Phan, Adam P. Harvey,