CO2环境下利乐包废弃物热解回收总资源化的TG/DTA-FTIR研究

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Progress in Reaction Kinetics and Mechanism Pub Date : 2018-10-01 DOI:10.3184/146867818X15233705894437

Hanxin Huo, Yuhui Ma

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引用次数: 5

摘要

利用热重/差热分析仪和傅里叶变换红外光谱仪对利乐包废弃物在CO2下的热解过程进行了研究。实验结果表明，纤维素在270 ~ 390℃之间发生分解，生成醛类、酮类、羧酸类和左旋葡聚糖。聚乙烯在440 ~ 530℃发生热裂解，主要产物为脂肪烃。在860-970°C的温度范围内，热解炭用CO2气化可产生CO。尽管在660°C以上熔化，铝(Al)箔仍保持“薄层形状”。CaO是由CaCO3作为纸张填料在722℃下分解生成的。在冷却过程中，CaO与CO2气氛发生反应，形成新的CaCO3, CaCO3是气化后灰分的主要成分，易于从铝箔中分离出来。

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TG/DTA-FTIR Study on Total Resource Recovery from Tetra Pak Waste by Pyrolysis under a CO2 Environment

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.

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来源期刊

Progress in Reaction Kinetics and Mechanism 化学-物理化学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

2.3 months

期刊介绍： The journal covers the fields of kinetics and mechanisms of chemical processes in the gas phase and solution of both simple and complex systems.