中国电机工程学报2015，Vol.35Issue(24)：6439-6444,后插20,7.DOI:10.13334/j.0258-8013.pcsee.2015.24.020
木质素热解气相产物释放特性实验研究
Experimental Study on GasProduct Release Characteristics of Lignin Pyrolysis
车德勇 1孙艳雪 1孙佰仲 2李少华1
作者信息
- 1. 东北电力大学能源与动力工程学院,吉林省吉林市 132012
- 2. 中国大唐集团科学技术研究院,北京市西城区 100033
- 折叠
摘要
Abstract
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℃.关键词
木质素/热解/气相产物/官能团Key words
lignin/pyrolysis/gas products/functional groups分类
能源科技引用本文复制引用
车德勇,孙艳雪,孙佰仲,李少华..木质素热解气相产物释放特性实验研究[J].中国电机工程学报,2015,35(24):6439-6444,后插20,7.
