کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7070047 | 1459924 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation into the lignin decomposition mechanism by analysis of the pyrolysis product of Pinus radiata
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
Lignin pyrolysis chemistry was investigated via the analysis of the products obtained from the fast pyrolysis of a pine wood at different temperatures. Methoxy phenols, such as guaiacols and eugenols, were produced mainly at 375 and 475 °C, while non-methoxy phenols, such as alkyl phenols and pyrocatechols were dominant at 525 and 575 °C. At 575 °C, aromatic hydrocarbons were formed together with larger amounts of light hydrocarbon gases. When the temperature was increased from 375 and 475 °C, the yield of pyrolytic lignin was increased, whereas its average molecular weight was decreased. At 525 °C, smaller molecular pyrolytic lignin with a maximum concentration of phenolic hydroxyl groups was produced due to the increased secondary cracking of the reaction intermediates. On the other hand, at 575 °C, larger molecular pyrolytic lignin with smaller amounts of phenolic hydroxyl groups was produced due to the increased condensation activity of the pyrolysis reaction intermediates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 219, November 2016, Pages 371-377
Journal: Bioresource Technology - Volume 219, November 2016, Pages 371-377
نویسندگان
Young-Min Kim, Jungho Jae, Soyoung Myung, Bong Hyun Sung, Jong-In Dong, Young-Kwon Park,