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Organic compounds produced during the thermal decomposition of cotton fabrics

机译：棉织物热分解过程中产生的有机化合物

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摘要

Used cotton fabrics, which can be considered a biomass according to its origin, were descomposed thermically in a laboratory scale reactor through a set of runs carried out in inert and air atmospheres, with temperatures between 650 and 1050 degrees C. More than 90 compounds, including carbon oxides, light hydrocarbons, and PAHs, have been identified and quantified. In the gas phase some of the main components obtained were methane, ethene, and benzene. The main semivolatile compounds detected were styrene, phenol, naphthalene, acenaphthylene, and phenanthrene. Furthermore, analyses of PCDD/Fs in the material tested and in the semivolatile compounds produced during the combustion at 850 degrees C were also performed, obtaining values of 14.5 (sample) and 7.2 pg I-TEQ/g (combustion). The congener that mostly contributes to the total I-TEQ was 2,3,4,7,8-PeCDF. The results obtained show that this waste could be used as biomass, and in this way, it is a valid alternative to disposal in landfills.
机译：在实验室规模的反应器中，通过在惰性气氛和空气气氛中（温度介于650和1050摄氏度之间）进行的一系列运行，将用过的棉织物（根据其来源可被视为生物质）进行热分解。90多种化合物，包括碳氧化物，轻烃和多环芳烃在内的物质已被鉴定和量化。在气相中，获得的一些主要成分是甲烷，乙烯和苯。检测到的主要半挥发性化合物为苯乙烯，苯酚，萘，ena和菲。此外，还对所测试的材料以及在850摄氏度的燃烧过程中产生的半挥发性化合物中的PCDD / Fs进行了分析，得出的值分别为14.5（样品）和7.2 pg I-TEQ / g（燃烧）。对总I-TEQ贡献最大的同类物是2,3,4,7,8-PeCDF。获得的结果表明，这种废物可以用作生物质，因此，它是替代垃圾填埋场的有效选择。

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