کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6657002 | 461675 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Arene production by W2C/MCM-41-catalyzed upgrading of vapors from fast pyrolysis of lignin
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
W2C/MCM-41-catalyzed upgrading of vapors from fast pyrolysis of lignin was investigated with the aim of arene production. The experiments were conducted in a micro pyrolyzer-gas chromatography/mass spectrometer (P-GC/MS). A series of W2C/MCM-41 catalysts with different catalyst loading amount (Si/W) were prepared and the activity, selectivity, and stability of the catalysts were investigated. Associated with the analysis results of P-GC/MS for the pyrolysis vapors, the optimal condition for producing arenes was found. Besides, possible mechanisms for lignin conversion with the as-prepared catalysts were discussed. In the presence of W2C/MCM-41 (Si/W = 50), the arenes yield is about 20% of volatile product and the selectivity for monocyclic arenes is over 85% at 750°C. The yield of arenes increases significantly with the increase of catalyst-to-lignin mass ratio (C/L). According to the run tests, the conversion of arenes decreases slightly by 1% or 2% after each run, indicating that the catalyst features good stability under the experimental conditions. Thus, W2C/MCM-41 catalysts effectively catalyzed the formation of monocyclic arenes in the fast pyrolysis process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 134, June 2015, Pages 46-51
Journal: Fuel Processing Technology - Volume 134, June 2015, Pages 46-51
نویسندگان
Yi-Xin Chen, Yan Zheng, Ming Li, Xi-Feng Zhu,