加热速率和粒径对聚乙烯在超临界水中转化的影响  

Effects of heating rate and particle size on degradation of polyethylene in supercritical water

作　　者：苏晓丽[1] 赵玉龙[1] 张荣[1] 毕继诚[1] 

机构地区：[1]中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西太原030001

出　　处：《燃料化学学报》2006年第4期509-511,共3页Journal of Fuel Chemistry and Technology

基　　金：山西省青年科技基金(2006021013)

摘　　要：The effects of heating rate and particle size on degradation of polyethylene to oils in supercritical water were investigated with a 125mL autoclave.The results show that with the increase of heating rate,the yield of oil increases and that of gas decreases.In addition,the fraction of heavy hydrocarbons and the ratio of 1-alkene to n-alkane are relatively high under higher heating rate.More gas products and alkenes are produced using small particle polyethylene as raw material.The effects of heating rate and particle size on degradation of polyethylene to oils in supercritical water were investigated with a 125 mL autoclave. The results show that with the increase of heating rate, the yield of oil increases and that of gas decreases. In addition, the fraction of heavy hydrocarbons and the ratio of 1-alkene to n -alkane are relatively high under higher heating rate. More gas products and alkenes are produced using small particle polyethylene as raw material.

关 键 词：超临界水 聚乙烯 加热速率 粒径 

分 类 号：TQ353.6[化学工程]