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논문 기본 정보

자료유형
학술저널
저자정보
Lee, Hyung Won (Wood Chemistry Division, Forest Products Department, National Institute of Forest Science) Jeong, Hanseob (Wood Chemistry Division, Forest Products Department, National Institute of Forest Science) Ju, Young-Min (Wood Chemistry Division, Forest Products Department, National Institute of Forest Science) Youe, Won-Jae (Wood Chemistry Division, Forest Products Department, National Institute of Forest Science) Lee, Jaejung (Wood Chemistry Division, Forest Products Department, National Institute of Forest Science) Lee, Soo Min (Wood Chemistry Division, Forest Products Department, National Institute of Forest Science)
저널정보
한국목재공학회 목재공학(Journal of the Korean Wood Science and Technology) 목재공학 제47권 제4호
발행연도
2019.1
수록면
486 - 497 (12page)

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The non-isothermal and isothermal pyrolysis properties of H lignin and P lignin extracted from different biorefinery processes (such as supercritical water hydrolysis and fast pyrolysis) were studied using thermogravimetry analysis (TGA) and pyrolyzer-gas chromatography/mass spectrometry (Py-GC/MS). The lignins were characterized by ultimate/proximate analysis, FT-IR and GPC. Based on the thermogravimetry (TG) and derivative thermogravimetry (DTG) curves, the thermal decomposition stages were obtained and the pyrolysis products were analyzed at each thermal decomposition stage of non-isothermal pyrolysis. The isothermal pyrolysis of lignins was also carried out at 400, 500, and $600^{\circ}C$ to investigate the pyrolysis product distribution at each temperature. In non-isothermal pyrolysis, P lignin recovered from a fast pyrolysis process started to decompose and produced pyrolysis products at a lower temperature than H lignin recovered from a supercritical water hydrolysis process. In isothermal pyrolysis, guaiacyl and syringyl type were the major pyrolysis products at every temperature, while the amounts of p-hydroxyphenyl type and aromatic hydrocarbons increased with the pyrolysis temperature.

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