کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6764441 1431580 2018 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Integrated production of biodiesel and bioethanol from sweet potato
ترجمه فارسی عنوان
تولید مجتمع بیودیزل و بیواتانول از سیب زمینی شیرین
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
In the present study, the production of sweet potato bioethanol was conducted at a small industrial plant in Brazil and integrated in biodiesel production through ethanolysis. The specific objectives were: (i) monitor bioethanol production at a small industrial plant, considering production yield; (ii) study the ethanolysis of sunflower oil using sweet potato bioethanol with different grades (98, 99 and 99.4 °GL), with focus on biodiesel yield and purity. Bioethanol was produced under the following conditions: Sweet potato dilution in water (1:1 in wt.%); enzymatic hydrolysis with alpha-amylase (90 °C) and glucoamylase (60 °C) enzymes (700 mL/t); and, fermentation (30 °C) with saccharomyces cerevisiae (3.3 kg/t). Ethanolysis was performed as follows: 6:1 ethanol:oil molar ratio; 1.0 wt% NaOH; 45 °C; 1 h. The average yield of bioethanol was 161.4 L/t, corresponding to 10 598 L/ha. Biodiesel synthesis using bioethanol of different grades showed that both the yield and purity of the product increased with the grade of the ethanol used, with values ranging from 63 to 83 wt%, and 50 to 94 wt% for yield and purity, respectively. Results show that a high alcohol grade is required to make viable integrated production of biodiesel and bioethanol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 124, August 2018, Pages 114-120
نویسندگان
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