Evolution and Kinetics of Volatile Organic Compounds Generated during Low-Temperature Polymer Degradation
Evolution and Kinetics of Volatile Organic Compounds Generated during Low-Temperature Polymer Degradation
复制标题
聚合物低温降解过程中挥发性有机化合物的演变和动力学
DOI：
10.1080/10473289.2002.10470757
复制
发表时间：
2002
影响因子：
2.7
通讯作者：
S. Dey
中科院分区：
文献类型：
--
作者：
Q. Xiang;S. Mitra;M. Xanthos;S. Dey
摘要 开发了一种使用直接火焰离子化检测器 (FID) 测量的方法来研究聚合物热降解过程中挥发性有机化合物 (VOC) 的排放总量。该方法用于估算不同聚合物（例如低密度聚乙烯（PE）、聚丙烯（PP）、聚对苯二甲酸乙二醇酯（PET））和混合的消费后物流（例如回收地毯残留物和汽车碎纸机残留物（ASR））的有机排放量。还研究了温度、加热速率和停留时间等工艺参数的影响。在正常加工温度下观察到大量挥发性有机化合物排放，特别是回收聚合物。每种聚合物在热降解过程中都表现出独特的演化模式。还使用非等温技术研究了 VOC 排放动力学。动力学参数与文献数据一致。
Abstract A method using direct flame ionization detector (FID) measurement was developed to study total volatile organic compound (VOC) emissions during thermal degradation of polymers. This method was used to estimate organic emissions from different polymers, such as low-density polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), and commingled postconsumer streams, such as recycled carpet residue and auto shredder residue (ASR). The effects of process parameters, such as temperature, heating rate, and residence time, were also studied. Significant VOC emissions were observed at normal processing temperatures, particularly from recycled polymers. Each polymer showed a distinct evolution pattern during its thermal degradation. The kinetics of VOC emissions were also studied using a nonisothermal technique. The kinetic parameters were in agreement with data from the literature.