کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6656889 | 461667 | 2015 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fluidization and drying of biomass particles in a vibrating fluidized bed with pulsed gas flow
ترجمه فارسی عنوان
شستشو و خشک شدن ذرات زیست توده در بستر سیال ویبره با جریان گاز پالسی
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کلمات کلیدی
بستر سیال، جریان جامد گاز خشک کردن، زیست توده، لرزش، پالس
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Fluidization of biomass particles in the absence of inert bed materials has been tested in a pulsed fluidized bed with vibration, with the pulsation frequency ranging from 0.33 to 6.67Â Hz. Intermittent fluidization at 0.33Â Hz and apparently 'normal' fluidization at 6.67Â Hz with regular bubble patterns were observed. Pulsation has proven to be effective in overcoming the bridging of irregular biomass particles induced by strong inter-particle forces. The vibration is only effective when the pulsation is inadequate, either at too low a frequency or too low in amplitude. Drying of biomass has been carried out to quantify the effectiveness of gas pulsation for fluidized bed dryers and torrefiers in terms of gas-solid contact efficiency and heat and mass transfer rates. The effects of gas flow rate, bed temperature, pulsation frequency and vibration intensity on drying performance have been systematically investigated. While higher temperature and gas flow rate are favored in drying, there exists an optimal range of pulsation frequency between 0.75Â Hz and 1.5Â Hz where gas-solid contact is enhanced in both the constant rate drying and falling rate drying periods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 138, October 2015, Pages 471-482
Journal: Fuel Processing Technology - Volume 138, October 2015, Pages 471-482
نویسندگان
Dening Jia, Océane Cathary, Jianghong Peng, Xiaotao Bi, C. Jim Lim, Shahab Sokhansanj, Yuping Liu, Ruixu Wang, Atsushi Tsutsumi,