کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
13422161 1841703 2020 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Valorization of walnut shell ash as a catalyst for biodiesel production
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Valorization of walnut shell ash as a catalyst for biodiesel production
چکیده انگلیسی
The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 147, Part 1, March 2020, Pages 1033-1043
نویسندگان
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