极性溶剂中ZrO_2催化裂解聚乙烯反应  

Preparation and Catalytic Performance for Polyethylene Pyrolysis of ZrO_2

作　　者：齐萍[1] 张宁[1] 

机构地区：[1]南昌大学化学系,江西南昌330031

出　　处：《环境科学与技术》2008年第12期109-112,共4页Environmental Science & Technology

基　　金：国家自然科学基金项目(20562007)

摘　　要：文章研究了ZrO2催化裂解废旧聚乙烯反应。探讨了影响聚乙烯催化裂解的因素,如反应时间、溶剂种类、催化剂用量等。主要考察了不同条件下制备的ZrO2催化剂催化性能的差异。采用共沉淀法制备催化剂。采用激光粒度分析,XRD等手段对催化剂进行了表征。结果表明:ZrO2在催化裂解废旧聚乙烯反应中具有催化活性,反应浓度、焙烧温度对ZrO2催化剂的催化活性有明显的影响。锆盐溶液浓度在0.05mol/L、焙烧温度400℃得到的ZrO2催化剂活性最高,其裂解率达46.16%。Catalytic pyrolysis of PE plastics was studied, with analysis of influence of various reaction factors including reaction time, solvent, amount and sort of catalysts. Performance of catalysts prepared in different conditions was studied. Catalysts were prepared by co-precipitation method, and activity of catalysts was characterized by Laser Granularity Analyzer and XRD. Results showed that ZrO2 catalysts had activity in the reaction. Zr^2＋ concentration and temperature had obvious impact on the activity of catalysts. With the concentration of 0.05mol/L of Zr^2＋ and temperature of 400℃, the prepared catalyst showed the highest activity.

关 键 词：ZRO2 催化裂解 聚乙烯 

分 类 号：X830.2[环境科学与工程—环境工程]