کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6635458 | 461115 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gas evolution characteristics during pyrolysis and catalytic pyrolysis of coals by TG-MS and in a high-frequency furnace
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Pyrolysis and catalytic pyrolysis behaviors of two kinds of coals with different ranks were determined by thermogravimetric analyzer-mass spectrometry (TG-MS) and a high-frequency furnace. A quantitative method of on-line gas analysis was proposed using quadrupole mass spectrometry. The effects of pyrolysis temperature (650-800 °C) and Na2CO3 loading amount (0-15 wt.%) on the gaseous compounds evolution were investigated. The results show that loading Na2CO3 on coal was favorable for gas production in pyrolysis process. The yields of light gas species in the high-frequency furnace were lower than those in TG-MS. By comparing the pyrolysis yields of gas and solid in the high-frequency furnace and TG-MS, it was concluded that heating methods had great effects on the reaction mechanism and product distribution of pyrolysis and catalytic pyrolysis of coals. Moreover, the evolution processes of gaseous compounds were related to the presence of different functional groups in the solid samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 154, 15 August 2015, Pages 222-232
Journal: Fuel - Volume 154, 15 August 2015, Pages 222-232
نویسندگان
Lu Ding, Zhijie Zhou, Qinghua Guo, Shanjun Lin, Guangsuo Yu,