Effect of the Temperature on the Composition of Lignin Pyrolysis Products

• Published in: Energy & fuels Vol. 24; no. 8; pp. 4470 - 4475
• Main Authors: Jiang, Guozhan, Nowakowski, Daniel J, Bridgwater, Anthony V
• Format: Journal Article
• Language: English
• Published: American Chemical Society 19.08.2010
• Subjects: Renewable Energy
• ISSN: 0887-0624; 1520-5029
• DOI: 10.1021/ef100363c

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.