PYROLYSIS OF POST-CONSUMED WASTE PLASTICS FOR THE RECOVERY OF BTX-AROMATICS USING A FLUIDIZED BED REACTOR
Waste plastics have been usually disposed on landfill sites or been utilized energetically, for instance, incineration. Modern Society, however, requires reasonable alternatives to cope effectively with needs for energy- and environmental conservation. Researchers consider the pyrolysis of plastic wastes to be an alternative, and intensive researches have been carried out 1. Via pyrolysis, plastic wastes can be converted into chemical feedstock which can be used to produce new valuable products such as oils and gases of high caloric value. In this study, fractions of waste polypropylene and polyethylene and mixed waste plastics, were pyrolyzed in a laboratory scale pyrolysis plant equipped with a fluidized bed reactor and a char removal system, under different conditions. In experiments, the influence of the reaction temperature, the feed rate, and the kind of fluidizing medium on the product spectrum was investigated to optimize reaction conditions for the maximum recovery for BTX-aromatics. Pyrolysis of the PP fraction produced oils up to 43 wt％ of the product. With respect to the PE fraction, the maximum oil yield was above 60 wt％ of the product. The target compound was BTX aromatics, whose amount in the oils reached 53 wt％ for the PP fraction and 32 wt％ for the PE fraction. The oils that were obtained in the experiments almost had no metal and chlorine contents.
Su-Hwa Jung Min-Hwan Cho Joo-Sik Kim
Faculty of Environ.Eng., Univ.of Seoul, 90 Jeonnong-Dong, Dongdaemun-Gu,Seoul 130-743, Korea
国际会议
成都
英文
73-78
2009-10-11（万方平台首次上网日期，不代表论文的发表时间）