Reactor and Process For At Least Partially Decomposing and/or Cleaning Plastic Material

Abstract

A reactor for gasifying and/or cleaning, in particular for depolymerizing, plastic material ( 12 ) with a reactor tank ( 14 ) for receiving the plastic material ( 12 ), wherein the reactor tank comprises a metal melt, a heating system ( 18 ) for heating the plastic material ( 12 ) in the reactor tank ( 14 ). According to the invention, a guide apparatus ( 24 ) arranged in an internal space ( 22 ) of the reactor tank ( 14 ) is provided for guiding liquefied plastic material ( 12 ) in the reactor tank ( 14 ), wherein the guide apparatus ( 24 ) is intended to guide the liquefied plastic material ( 12 ) on a helical path.

1 . A reactor for gasifying and/or cleaning, in particular for depolymerizing, plastic material with
 (a) a reactor tank for receiving the plastic material,   (b) wherein the reactor tank comprises a metal melt, and   (c) a heating system for heating the plastic material in the reactor tank,   
       characterized by
 (d) a guide apparatus arranged in an internal space of the reactor tank for guiding liquefied plastic material in the reactor tank, 
 (e) wherein the guide apparatus is designed to guide the liquefied plastic material on a helical path. 
 
     
     
         2 . The reactor according to  claim 1 , wherein the guide apparatus is screw-shaped. 
     
     
         3 . The reactor according to  claim 1 , wherein the guide apparatus runs upwards with an increasing radial distance, relative to a vertical cross section, so that the liquefied plastic material striking the guide apparatus is guided upwards and to the radial outside. 
     
     
         4 . The reactor according to  claim 1 , wherein the guide apparatus is constructed from ferromagnetic material in at least some sections. 
     
     
         5 . The reactor according to  claim 1 , wherein the guide apparatus has recesses which run continuously from bottom to top. 
     
     
         6 . The reactor according to  claim 1 , wherein the guide apparatus comprises a thickening adjacent to at least one recess. 
     
     
         7 . The reactor according to  claim 1 , wherein the reactor tank comprises ferroelectric material on at least on the side facing the inner space. 
     
     
         8 . The reactor according to  claim 1 , wherein it has heat elements in its inner space, which comprise ferromagnetic material. 
     
     
         9 . A process for at least partially decomposing, in particular depolymerizing, and/or cleaning plastic material characterized by the steps:
 (a) introducing the plastic material into a reactor tank that stretches along a longitudinal axis and comprises a metal melt,   (b) heating the plastic material by means of a heating system,   (c) guiding the plastic material on a path about the longitudinal axis of the reactor tank by means of a guide apparatus which is arranged in an internal space of the reactor tank.   
     
     
         10 . The process according to  claim 9 , wherein the plastic material is made predominantly from polyolefin that sets at 23° C.