Effect of the Temperature on the Composition of Lignin Pyrolysis Products

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• 作者：Guozhan Jiang ; Daniel J. Nowakowski ; Anthony V. Bridgwater
• 刊名：Energy & Fuels
• 出版年：2010
• 出版时间：August 19, 2010
• 年：2010
• 卷：24
• 期：8
• 页码：4470-4475
• 全文大小：742K
• 年卷期：v.24,no.8(August 19, 2010)
• ISSN：1520-5029

文摘

The temperature dependence of the pyrolysis products of two types of lignin (Alcell lignin and Asian lignin) was investigated using pyrolysis−gas chromatography−mass spectrometry (PyGC−MS). About 50 compounds were identified and quantified for each type of lignin over a temperature range of 400−800 °C. The maximum yield of phenolic compounds was obtained at 600 °C for both lignins, which was 17.2% for Alcell lignin and 15.5% for Asian lignin. Most of the phenolic compounds had an individual yield of less than 1%; however, for Alcell lignin, 5-hydroxyvanillin was the highest yield at 4.29 wt % on dry ash-free lignin, and for Asian lignin, 2-methoxy-4-vinylphenol was the highest yield at 4.15 wt % on dry ash-free lignin.