Pyrolysis of Tetra Pak waste under CO2 was investigated using a thermogravimetric/differential thermal analyser coupled with a Fourier transform infrared spectrometer. Experimental results showed that cellulose was decomposed between 270 and 390 °C, leading to the formation of aldehydes, ketones, carboxylic acids and levoglucosan. Thermal cracking of polyethylene occurred between 440 and 530 °C and the main products were aliphatic hydrocarbons. CO can be produced by the gasification of pyrolytic char by CO2 at temperatures ranging from 860–970 °C. Aluminium (Al) foil remained in a “thin layer shape” despite melting above 660 °C. CaO was generated from the decomposition of CaCO3 used as a paper filler at 722 °C. The reaction between CaO and the CO2 atmosphere during the cooling process led to the formation of new CaCO3 which was the main component of ash after gasification and was easy to separate from Al foil.

中文翻译：

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在 CO2 环境下通过热解从利乐废物中回收总资源的 TG/DTA-FTIR 研究

使用热重/差热分析仪与傅里叶变换红外光谱仪联用，研究了利乐废物在 CO2 下的热解。实验结果表明，纤维素在 270 到 390 °C 之间分解，导致形成醛、酮、羧酸和左旋葡聚糖。聚乙烯的热裂解发生在 440 到 530 °C 之间，主要产物是脂肪烃。CO 可以通过 CO2 在 860-970 °C 的温度范围内气化热解炭来产生。尽管在 660 °C 以上熔化，铝 (Al) 箔仍保持“薄层形状”。CaO 是由用作纸张填料的 CaCO3 在 722 °C 下分解产生的。