کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6590536 | 456858 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multi-fluid reactive modeling of fluidized bed pyrolysis process
ترجمه فارسی عنوان
مدلسازی واکنش چند مولکولی فرآیند فرسایش پتاسیم مایع
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کلمات کلیدی
زیست توده، بستر سیال، دینامیک سیالات محاسباتی، چند فاز، پیرولیز،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
A multiphase reactive model of biomass pyrolysis process has been implemented by integrating the reaction kinetics of the thermo-chemical decomposition of biomass with the hydrodynamics of the fluidized bed. The model was validated with the experimental data of biomass pyrolysis in the presence of a sand bed. The simulation results were examined to analyze the effect of reactor temperature, superficial gas velocity and biomass particle size on the bed hydrodynamics and product yields. It was found that at temperatures higher than 500 °C, there was a significant conversion of primary tar into NCG (non-condensable gases) due to thermal cracking inside the reactor. However, the increase in superficial gas velocity led to higher concentration of tar due to lower residence time for tar cracking reactions. Any increase in biomass particle size reduced the yield of volatile products due to decrease in the rate of heat transfer, which in turn increased the yield of biochar.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 123, 17 February 2015, Pages 311-321
Journal: Chemical Engineering Science - Volume 123, 17 February 2015, Pages 311-321
نویسندگان
Abhishek Sharma, Shaobin Wang, Vishnu Pareek, Hong Yang, Dongke Zhang,