Department of Chemical Engineering, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain.
Department of Chemical Engineering, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain.
Waste Manag. 2016 Jun;52:138-46. doi: 10.1016/j.wasman.2016.04.007. Epub 2016 Apr 16.
Thermal decomposition of flexible polyurethane foam (FPUF) was studied under nitrogen and air atmospheres at 550°C and 850°C using a laboratory scale reactor to analyse the evolved products. Ammonia, hydrogen cyanide and nitrile compounds were obtained in high yields in pyrolysis at the lower temperature, whereas at 850°C polycyclic aromatic hydrocarbons (PAHs) and other semivolatile compounds, especially compounds containing nitrogen (benzonitrile, aniline, quinolone and indene) were the most abundant products. Different behaviour was observed in the evolution of polychlorodibenzo-p-dioxins and furans (PCDD/Fs) at 550°C and 850°C. At 550°C, the less chlorinated congeners, mainly PCDF, were more abundant. Contrarily, at 850°C the most chlorinated PCDD were dominant. In addition, the total yields of PCDD/Fs in the pyrolysis and combustion runs at 850°C were low and quite similar.
在 550°C 和 850°C 下，使用实验室规模的反应器在氮气和空气气氛下研究了柔性聚氨酯泡沫（FPUF）的热分解，以分析所产生的产物。在较低温度下的热解中，氨、氢氰酸和腈类化合物以高产率获得，而在 850°C 下，多环芳烃（PAHs）和其他半挥发性化合物，特别是含氮的化合物（苯甲腈、苯胺、喹诺酮和茚）是最丰富的产物。在 550°C 和 850°C 下，多氯二苯并对二恶英和呋喃（PCDD/Fs）的演化表现出不同的行为。在 550°C 时，较少氯化的同系物，主要是 PCDF，更为丰富。相反，在 850°C 时，最氯化的 PCDD 占主导地位。此外，在 850°C 下进行的热解和燃烧实验中，PCDD/Fs 的总产率较低且非常相似。
