To provide a conversion method through thermal cracking a waste plastic to oil, which improves a treatment for a dechlorinated content and a yield of low boiling point oil by effectively utilizing the aforementioned dechlorinating heating furnace and the thermal cracking means.
In a preparation method of a low boiling point oil, the principal gist comprises, at a stage of heating a waste plastic P to separate a chlorine content, contacting the plastic P with a fine powderlike neutralizing agent N, and bonding the separated chlorine content and the neutralizing agent N, and the further gist comprises adding a FCC waste catalyst of 5-35 wt.% to the raw material waste plastic in the area of the thermal cracking directly or indirectly through a preliminary treatment step in which dechlorination is carried out.
HORIZOE HIROTOSHI
AMARI TAKESHI
MATSUKAWA YASUMASA
SATO SHIGEHIRO
