PVC塑料与橡胶的催化热解反应产物分布规律研究  

The investigation of catalytic pyrolysis products distribution from PVC plastic and rubber

作　　者：孙天威 滕阳[1] 黄一麒 张锴[1] SUN Tianwei;TENG Yang;HUANG Yiqi;ZHANG Kai(Beijing Key Laboratory of Emission Surveillance and Control for Thermal Power Generation,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学热电生产过程污染物检测与控制北京市重点实验室,北京102206

出　　处：《应用化工》2024年第9期2018-2023,共6页Applied Chemical Industry

基　　金：国家自然科学基金项目(U1910215)。

摘　　要：采用管式炉热解装置进行了聚氯乙烯塑料(PVC)和橡胶在ZSM-5、HZSM-5和HY三种催化剂作用下的热解反应,利用气相色谱-质谱联用(GC-MS)分析热解产物的成分。结果表明,PVC与橡胶的共热解过程,随着催化剂的引入及PVC与橡胶掺混比改变,产品的烃类组分显著变化。HZSM-5催化剂作用下PVC与橡胶共热解的芳烃收率最高,可达77.37%。HY催化剂作用下热解油中单环芳烃向双环芳烃的转化最高,可达56.64%。在PVC橡胶共热解添加HY催化剂1∶1∶1时,多环芳烃组分产率最高,达到23.43%。The pyrolysis reactions of polyvinyl chloride(PVC)and rubber were conducted in a tube furnace using ZSM-5,HZSM-5,and HY catalysts.Gas chromatography-mass spectrometry(GC-MS)was employed to analyze the composition of the pyrolysis products.The results demonstrate significant changes in hydrocarbon components during co-pyrolysis of PVC and rubber,depending on their mixing ratio.With HZSM-5 catalyst,the yield of aromatics from PVC-rubber co-pyrolysis reaches its maximum at 77.37%.On the other hand,HY catalyst exhibits superior conversion efficiency from monocyclic aromatic hydrocarbons to bicyclic aromatic hydrocarbons with a peak value at 56.64%.Notably,when employing a 1∶1∶1 ratio of HY catalyst in PVC-rubber co-pyrolysis,the proportion of polycyclic aromatic hydrocarbons(PAHs)can reach as high as 23.43%.

关 键 词：PVC 橡胶 热重分析 催化热解 共热解 芳香烃 

分 类 号：TQ320.9[化学工程—合成树脂塑料工业] TQ646[环境科学与工程—环境工程] X784