Method and apparatus for producing superheated steam using heat from the incineration of waste material

An apparatus for producing superheated steam using incineration heat of waste materials, comprising:

• a pyrolysis means for pyrolyzing chlorine-containing waste materials in an oxygen-poor fluidized space into which combustion gas from which oxygen has been consumed is mainly introduced and in which fluidized bed medium of approximately 300.degree. C. or higher fluidizes;
• a char combustion means for generating a chlorine-free energy source by combusting unpyrolyzed residue while the char mixture of fluidized bed medium and the unpyrolyzed residue drawn from the pyrolysis means fluidize in a fluidized bed;
• wherein each of said pyrolysis means and said char combustion means is disposed separately as a different furnace, and
• a backflow prevention means for preventing backflow of char or fluidized bed medium and gases, said backflow prevention means being provided in a path connecting said pyrolysis means and said char combustion means, or at a side of said pyrolysis means or said char combustion means.

An apparatus for producing superheated steam using incineration heat of waste materials, comprising:

• a pyrolysis means for generating a chlorine-containing energy source by pyrolyzing chlorine-containing waste materials in an oxygen-poor fluidized space into which combustion gas from which oxygen has been consumed is mainly introduced and in which fluidized bed medium of approximately 300.degree. C. or higher fluidizes;
• a char combustion means for generating a chlorine-free energy source by combusting unpyrolyzed residue while the char mixture of fluidized bed medium and the unpyrolyzed residue drawn from the Pyrolysis means fluidize in a fluidized bed;
• wherein each of said pyrolysis means and said char combustion means is disposed separately as a different furnace;
• a first steam generating means disposed in the region of pyrolysis means for producing hot water or steam having a temperature below approximately 400.degree. C. using thermal energy from said pyrolysis gases;
• and
• a second steam generating means disposed in the region of char combustion means for producing superheated steam from said hot water or steam produced by said first steam generating means using thermal energy from said char combustion means.