Characterization of the different fractions obtained from the pyrolysis of rope industry waste

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• 作者：Marta Andrade^a ; José ; B. Parra^b ; Marta Haro^b ; Ana S. Mestre^a ; Ana P. Carvalho^a ; ^{ana.carvalho@fc.ul.pt} ; Conchi O. Ania^b ; ^{conchi.ania@incar.csic.es}
• 关键词：Sisal ; Residues ; Pyrolysis ; Gas fraction ; Oil fraction
• 刊名：Journal of Analytical and Applied Pyrolysis
• 出版年：2012
• 期刊代码：46_01652370
• 类别：ch
• 出版时间：May, 2012
• 卷：95
• 期：Complete
• 页码：31-37
• 文件大小：531 K

摘要

A study of the possibilities of pyrolysis for recovering wastes of the rope's industry has been carried out. The pyrolysis of this lignocellulosic residue started at 250 掳C, with the main region of decomposition occurring at temperatures between 300 and 350 掳C. As the reaction temperature increased, the yields of pyrolyzed gas and oil increased, yielding 22 wt.%of a carbonaceous residue, 50 wt.%tars and a gas fraction at 800 掳C. The chemical composition and textural characterization of the chars obtained at various temperatures confirmed that even if most decomposition occurs at 400 掳C, there are some pyrolytic reactions still going on above 550 掳C. The different pyrolysis fractions were analyzed by GC-MS; the produced oil was rich in hydrocarbons and alcohols. On the other hand, the gas fraction is mainly composed of CO₂, CO and CH₄. Finally, the carbonaceous solid residue (char) displayed porous features, with a more developed porous structure as the pyrolysis temperature increased.