Device and method for pyrolyzing organic compounds using high-frequency induction heating device

Abstract

A device for decomposing an organic compound, which heats and decomposes organic compounds in at least one pyrolysis zone in a gas phase is disclosed. The pyrolysis zone comprises at least one high-frequency induction-heating device provided within a gas passage. The high-frequency induction-heating device preferably comprises an introduction part which introduces a gas to be treated; a pyrolysis part which pyrolyzes the gas to be treated; an induction heating coil provided around the outer circumference of the pyrolysis part so as to surround and heat the pyrolysis part, and an exhaust part which exhausts the gas having been decomposed in the pyrolysis part; wherein the pyrolysis part comprises a cylindrical body both ends of which are sealed, slits which communicate the interior with the exterior of the cylindrical body provided on the outer surface of the cylindrical body, and a communication pores to be communicated with an introduction tube which introduces the gas to be treated into the interior of the cylindrical body.

What is claimed is:  
     
         1 . A device for decomposing an organic compound, which heats and decomposes organic compounds in at least one pyrolysis zone in a gas phase, 
 said pyrolysis zone comprising at least one high-frequency induction heating device provided within a gas passage.    
     
     
         2 . The device as claimed in  claim 1 , wherein said pyrolysis zone is composed of a vacuum chamber connected to pressure reducing means.  
     
     
         3 . The device as claimed in  claim 1 , wherein a gasifying device for gasifying a solid and/or liquid substance is provided upstream of said pyrolysis zone.  
     
     
         4 . The device as claimed in  claim 1 , wherein a preheating device is provided upstream said high-frequency induction heating device within the pyrolysis zone.  
     
     
         5 . The device as claimed in  claim 1 , wherein a second heating device utilizing radiation heat is provided downstream said high-frequency induction heating device within the pyrolysis zone.  
     
     
         6 . The device as claimed in  claim 1 , which further comprises a trapping zone for trapping decomposed substance.  
     
     
         7 . The device as claimed in  claim 1 , wherein said high-frequency induction heating device comprising: 
 an introduction part which introduces a gas to be treated,    a pyrolysis part which pyrolyzes the gas to be treated,    an induction heating coil provided around the outer circumference of said pyrolysis part so as to surround and heat said pyrolysis part, and    an exhaust part which exhausts the gas having been decomposed in said pyrolysis part;    said pyrolysis part comprising a cylindrical body both ends of which are sealed, slits which communicate the interior with the exterior of said cylindrical body provided on the outer surface of said cylindrical body, and a communication pores to be communicated with an introduction tube which introduces said gas to be treated into the interior of said cylindrical body.    
     
     
         8 . The device as claimed in  claim 1 , wherein said organic compounds are selected from the group consisting of organic halogen compounds, exhaust oils, residues from food processing.  
     
     
         9 . The device as claimed in  claim 8 , wherein said halogen compounds are mono- or poly-halogenated aromatic or aliphatic compounds, and combination thereof or combination the above compounds with other halogen compounds.  
     
     
         10 . The device as claimed in  claim 1 , wherein said pyrolysis zone comprising a high-frequency induction heating device comprising: 
 an introduction part which introduces a gas to be treated,    a pyrolysis part which pyrolyzes the gas to be treated,    an induction heating coil provided around the outer circumference of said pyrolysis part so as to surround and heat said pyrolysis part, and    an exhaust part which exhausts the gas having been decomposed in said pyrolysis part;    said pyrolysis part comprising a cylindrical body which introduces the gas provided so that the cross-section of the passage of said cylindrical body becomes smaller from the upstream towards the downstream; and    a supporting member for supporting said high frequency induction device.    
     
     
         11 . The device as claimed in  claim 1 , wherein said high-frequency induction heating device comprising: 
 an introduction part which introduces a gas to be treated,    a pyrolysis part which pyrolyzes the gas to be treated,    an induction heating coil provided around the outer circumference of said pyrolysis part so as to surround and heat said pyrolysis part, and    an exhaust part which exhausts the gas having been decomposed in said pyrolisis part;    said pyrolysis part having a heating element having a plurality of through holes along the inside of the outer circumference of the diameter direction thereof and ceramic pipes inserted within said plurality of through holes and supported by pipe supporting plates accommodated therein.    
     
     
         12 . The device as claimed in  claim 11 , wherein said pyrolysis part has pressure reducing means for reducing the pressure of the body.  
     
     
         13 . The device as claimed in  claim 11 , wherein said pyrolysis part has compressing means for compressing the body by an inert gas.  
     
     
         14 . The device as claimed in  claim 12  or  13 , wherein said pipe supporting plate has a guide member for introducing a gas to be treated into said ceramic pipe.  
     
     
         15 . The device as claimed in  claim 14 , wherein said ceramic pipe is made of at least one member selected from the group consisting of silicon carbide and alumina.  
     
     
         16 . The device as claimed in  claim 15 , wherein step part to be fit to spacers are provided on both ends of said heating element.  
     
     
         17 . The device as claimed in  claim 16 , wherein said spacer comprises non-dielectric material and is formed from a flange having the plurality of through holes and cylindrical body.  
     
     
         18  A process for decomposing an organic compound, by heating and decomposing the organic compounds to be treated in at least one pyrolysis zone in a gas phase, 
 comprising passing a gas containing the organic compounds through a high-frequency induction heating device provided within a gas passage.  
 
     
     
         19 . A system for pyrolyzing organic compounds comprising 
 a gasifying device for gasifying a solid and/or liquid substance,    a pyrolysis zone, said pyrolysis zone including an optional preheating device, a high-frequency induction heating device, and an optional post-heating device, and    a trapping zone for trapping decomposed substance.    
     
     
         20 . The system as claimed in claim  25 , wherein the substance containing the organic compounds to be treated is bypassed through said gasifying device for and directly passed through said pyrolysis zone.