Experimental study on gas product release characteristics of lignin pyrolysis

被引：0

作者：

Che, Deyong ^{[1
]}

Sun, Yanxue ^{[1
]}

Sun, Baizhong ^{[2
]}

Li, Shaohua ^{[1
]}

机构：

[1] School of Energy and Power Engineering, Northeast Dianli University, Jilin, 132012, Jilin Province

[2] China Datang Corporation Science and Technology Research Institute, Xicheng District, Beijing

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2015年 / 35卷 / 24期

关键词：

Functional groups; Gas products; Lignin; Pyrolysis;

D O I：

10.13334/j.0258-8013.pcsee.2015.24.020

中图分类号：

学科分类号：

摘要：

Thermogravimetric analysis-Fourier transform infrared spectromerer (TG-FTIR) was applied to analyze the thermogravimetric and main gas products of alkali lignin pyrolysis, combined with infrared spectroscopy study of the chars from lignin pyrolysis generated different stages. The results show that the pyrolysis of lignin is divided into three phases: the moisture is volatilized below 200℃. Primary pyrolysis stage occurs at 200~550℃, the functional groups of lignin around phenyl ring broke and generated part of the gas and tar products. At 550~900℃, benzene or aromatic condensed into carbon. It is found that the primary gas releases from the process of lignin pyrolysis, mainly including H2O, CO2, CO, CH4 and other hydrocarbons. CO2 product releases at lower temperature (250~450℃)and higher temperature section (650~750℃), and an amount of CO releases at much higher temperature. In contrast, a large amount of CH4 mainly releases in the temperature range of 300~600℃. © 2015 Chin. Soc. for Elec. Eng.

引用

页码：6439 / 6444

页数：5

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