Interactions of biomass components during pyrolysis: A TG-FTIR study

✍ Scribed by Qian Liu; Zhaoping Zhong; Shurong Wang; Zhongyang Luo

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 685 KB
• Volume: 90
• Category: Article
• ISSN: 0165-2370
• DOI: 10.1016/j.jaap.2010.12.009

✦ Synopsis

The pyrolysis of synthetic biomass samples as three-component (viz. hemicellulose, cellulose and lignin) mixtures was investigated by using the technology of thermogravimetric analyzer coupled with Fourier transform infrared spectrometer (TG-FTIR). The results reveal the occurrence of interactions among biomass components during pyrolysis, especially the influence of lignin to hemicellulose below 327 • C and that of hemicellulose to cellulose above 327 • C. By analyzing the FTIR spectra carefully, it was found that the presence of lignin decreased the yield of 2-furaldehyde and C O containing compounds. The existence of hemicellulose intensively decreased the yield of levoglucosan, and largely promoted the formation of hydroxyacetaldehyde.