Patent ID: 6866830

Claim:
A system for continuously preparing gasoline, kerosene, and diesel oil from waste plastics, which comprises: a moving-bed catalytic cracker, in which a melt of the waste plastics and an alumina silicate solid acid catalyst particles are introduced downwardly from the upper portion thereof, and cracked and isomerized, and into which steam is injected through its lower portion to vaporize non-vaporized gaseous oil present on the catalyst surface, the moving-bed catalytic cracker being communicated with a fractionating column through a pressure controlling means disposed at a position spaced apart from the top thereof; a cyclone disposed outside of the moving-bed catalytic cracker and serving to sort only the catalyst particle of a desired size among the catalyst particles dropped to the bottom of the moving-bed catalytic cracker; and a catalyst regenerator made of nickel-molybdenum including an air injector and an exhaust gas pressure controller, and serving to regenerate the catalyst transferred from the cyclone and to return the regenerated catalyst to the moving-bed catalytic cracker.