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Title 

Investigation into the lignin decomposition mechanism by analysis of the pyrolysis product of Pinus radiata

Authors 

Y M KimJ JaeS MyungBong Hyun SungJ I DongY K Park

Publisher 

Elsevier

Issue Date 

2016

Citation 

Bioresource Technology, vol. 219, no. 0, pp. 371-377

Keywords 

GPCLigninNMRPyrolysis mechanism

Abstract 

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

ISSN 

0960-8524

Link 

http://dx.doi.org/10.1016/j.biortech.2016.08.001

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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