In order to obtain the waste textiles’ pyrolysis and the corresponding char’ gasification performance and mechanism under CO₂ atmosphere, the pyrolysis and gasification tests of different kinds of waste textiles (polyester fiber (PF), cotton and woolen) were conducted in thermogravimetric-Fourier transform infrared spectrometer at atmospheric pressure. Scanning electron microscopy and Raman spectrometry were used to characterize the char structure. The pyrolysis and gasification processes were quantitatively evaluated by kinetic analysis using the shrinking core model. Results indicated that the pyrolysis and gasification characteristic of the three textiles under CO₂ atmosphere were different because the kinetic and thermal dynamic of the three textiles in pyrolysis and gasification processes were different. In addition, the apparent pyrolysis activation energies for PF, cotton and woolen were 162.38, 103.05 and 110.02 kJ mol⁻¹, respectively, while the gasification activation energies were 178.15, 144.49 and 79.37 kJ mol⁻¹, respectively, which were in good agreement of the Raman tests.

中文翻译：

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废纺织品在二氧化碳气氛下的热解气化性能

为了获得废纺织品的热解以及在CO ₂气氛下相应的焦炭气化性能和机理，在热重分析仪上对不同种类的废纺织品（聚酯纤维（PF），棉和毛）进行了热解和气化测试。大气压下的傅立叶变换红外光谱仪。扫描电子显微镜和拉曼光谱法用于表征炭结构。使用收缩核模型通过动力学分析定量评估了热解和气化过程。结果表明，三种纺织品在CO ₂条件下的热解气化特性气氛是不同的，因为这三种纺织品在热解和气化过程中的动力学和热动力学是不同的。此外，PF，棉和羊毛的表观热解活化能分别为162.38、103.05和110.02 kJ mol ^-1，而气化活化能分别为178.15、144.49和79.37 kJ mol ^-1，这两者吻合得很好。拉曼测试。