| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a liquefying method and apparatus for waste plastics which can efficiently control thermal cracking conditions, in the recovery of cracked oils formed by thermally cracking and liquefying the waste plastics. <P>SOLUTION: The most suitable cracking condition in the liquefying method of the waste plastics is determined by following steps: measuring a bulk density of a waste plastics ground material and a hydrogen content per unit apparent volume by determining aγ-ray counting rate and a neutral beam counting rate, measuring a content ratio of each plastic in the waste plastics using the above-measured value, and a bulk density of the each waste plastic ground material and a hydrogen content per unit apparent volume, and determining the most suitable thermal cracking condition of the ground material using the content ratio. The liquefying method and apparatus of the waste plastics comprise using the most suitable cracking condition. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
