抄録
A Increasing amount of waste plastics which causes serious pollution problem is a cheap and abundant source of chemicals and energy.The chemical recycling method, which converts waste plastics to useful hydrocarbons and monomers of the plastics, is recognized as a useful approach. The waste generated from factories is almost a specific resin, and the chemical recycle technology is being established for each plastics.However, the waste generated from household is mixture of the waste plastics.The technology developed for each plastics from factories is scarcely applicable for the waste from household.Here, a possible process, which enables to convert the mixture of waste plastics to fuels, is proposed.The key technologies of this process are; one is the usage of steam as a carrier gas, which accelerates the hydrolysis of oxygen-containing resin, the second the iron and Ni supporting REY zeolite catalysts, which show high activity in steam atmosphere, the third is a new type reactor with moved particles as a heat-medium for the pyrolysis.The utility of this process was examined by applying it to recover fuels from the mixture of poly-ethylene and poly (ethyleneterephthalate).
