کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6763731 | 1431572 | 2019 | 42 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of calcium materials in biochar matrix as a highly stable catalyst for biodiesel production
ترجمه فارسی عنوان
سنتز مواد کلسیم در ماتریکس زیست تخریبی به عنوان یک کاتالیزور پایدار برای تولید بیودیزل
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
In this study, the biochar which was obtained from peat was modified and served as the support for the preparation of cost-effective solid base catalysts for the transesterification reaction. The composition, structure and texture of prepared catalysts were examined by scanning electron microscope (SEM), energy dispersive spectrometer (EDS), N2 adsorption/desorption, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and the Hammett indicator method. It was found that the surface area and pore volume of the peat biochar were increased significantly (from 80.25â¯m2/g and 105.36â¯mm3/g to 230.86â¯m2/g and 296.23â¯mm3/g, respectively) by chemical activation treatment with KOH. The best performance is observed for the resulting 30Ca/APB-700 catalyst (30% CaO loading and 700â¯Â°C calcination temperature), and over biodiesel yield of 93.4% was achieved at catalyst amount of 5â¯wt.%, methanol/oil molar ratio of 8:1 and reaction time of 150â¯min. Besides, after reused for 10 cycles, the catalytic efficiency had a slight deactivation in biodiesel production (above 81.6% of yield obtained). The high stability of catalyst was mainly attributed to the formation of CaOSi bond on the catalyst surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 130, January 2019, Pages 41-49
Journal: Renewable Energy - Volume 130, January 2019, Pages 41-49
نویسندگان
Shuxiao Wang, Rui Shan, Yazhuo Wang, Lili Lu, Haoran Yuan,