【摘要】 在自制固定床反应器中,对聚丙烯和毛竹共热解进行研究,得到了反应气氛、热解温度、反应物配比、反应时间对共热解的影响规律。实验结果表明,由于毛竹与聚丙烯在热解过程中的相互影响,两者共热解时的液体收率和产物分布均与两者单独热解时不同,油相液体产物的辛烷值随毛竹加入量的增加而增大,在聚丙烯和毛竹的最佳配比下,两者共热解的协同作用最明显,不仅原料的转化率最大,而且所得液体产物的收率最高,H2气氛较之N2气氛更有利于油相产物的生成和毛竹中木质素成分的热解。本文条件下,获得最佳油相液体收率的条件为,聚丙烯/毛竹配比8∶2,热解温度520℃,反应时间4h,H2气氛,油相液体收率达53.9wt.%,辛烷值为77.3。更多还原

【Abstract】 The Co-pyrolysis of polypropylene and Phyllostachys pubescens mixture was studied in a laboratory scale semi-batch fixed reactor.The effects of reaction temperature,atmosphere,reaction time and the mixture ratios on the co-pyrolysis reaction were established and discussed.The results obtained indicate that the liquid yield and distribution of co-pyrolysis are different from the separated pyrolysis of polypropylene or Phyllostachys pubescens.The addition of Phyllostachys pubescens to polypropylene increases the RON（Research Octane Number） value of oil phase,and there is a remarkable cooperative effect on the conversion of mixture when the mixture ratios is 8∶2,resulting in high yield of liquid product and conversion.The oil phase production and the pyrolysis of lignin in Phyllostachys pubescens are much better in H₂ atmosphere than in N₂ atmosphere.Under optimized experimental conditions in the present paper,that is,co-pyrolysis of polypropylene/Phyllostachys pubescens mixture with a weight ratio of 8∶2,in H₂ atmosphere at 520℃ for 4hours,a oil phase product yield of 53.9wt.%with a RON value of 77.3 was obtained.更多还原