This study investigated the fast pyrolysis of polyvinyl chloride (PVC) and wood powder (WP). Thermogravimetric analyzer (TGA) was used to study their pyrolysis characteristics in N₂ and CO₂, and the interaction of them were studied in a fixed bed reactor. The results showed that the addition of WP advanced the two stages of the pyrolysis of PVC and increased the maximum weight loss temperature, the pyrolysis modes of PVC and WP were same in N₂ and CO₂. Monocyclic aromatic hydrocarbons increased after WP was added, while the aromatic hydrocarbons with more than six carbons decreased. And the more WP was added, the more obvious the inhibitory effect. Compared with pyrolysis in N₂, CO₂ improve further the pyrolysis efficiency of waste and effectively inhibited the generation of harmful substances such as PAHs. The content of CO and CO₂ increased and the content of CH₄ and H₂ decreased when WP was added. According to the experimental results, the mechanism of formation of the monocyclic aromatic hydrocarbon was deduced. These studies provided a theoretical basis for the co-pyrolysis of PVC and biomass to obtain low carbon hydrocarbons.

这项研究研究了聚氯乙烯（PVC）和木粉（WP）的快速热解。用热重分析仪（TGA）研究了它们在N ₂和CO _2中的热解特性，并在固定床反应器中研究了它们的相互作用。结果表明，WP的加入促进了PVC热解的两个阶段，增加了最大失重温度，PVC和WP在N ₂和CO _2中的热解方式相同。加入WP后，单环芳烃增加，而碳数大于6的芳烃减少。并且添加的WP越多，抑制作用越明显。与N ₂，CO _2中的热解相比进一步提高了废物的热解效率，并有效抑制了有害物质如多环芳烃的产生。添加WP后，CO和CO ₂的含量增加，CH ₄和H _2的含量减少。根据实验结果，推导了单环芳烃的形成机理。这些研究为PVC和生物质的共热解获得低碳碳氢化合物提供了理论基础。