Abstract: When scrap tires containing metal wire are incinerated in the scrap tire combustion furnace at a temperature of 400.degree. to 950.degree. C. in the presence of oxygen, CO.sub.2 and water vapor is implemented, waste flons soaked into cloths, for example, are loaded together with scrap tires into the furnace. In this method, waste flons can be decomposed nearly 100%, under the reactions of hydrocarbons as well as a slight amount of sulfur which are both generated when the scrap tires burns.

Abstract: An activated carbon has a pencil hardness of B-6B, pore size of 100-400 .ANG., specific surface area of 150-500 m.sup.2 /g, pore volume of 1.3-5.0 ml/g, and if desired, CEC of 8-13 and is composed of carbon microcrystals irregularly arranged.The activated carbon can be produced by burning waste tires containing metal wires. The activated carbon can be used for removing SO.sub.2 and/or Nox formed by combustion of heavy oil.

Abstract: A preparing process of activated carbon includes steps of: combusting scrap tires containing metal wire at 400.degree. C. to 900.degree. C. under the presence of oxygen, carbon dioxide and vapor; reheating the generated combustible gases up to 800.degree. C. to 900.degree. C. by adding a further fuel; causing the exhaust gas to heat-exchange with a water pipe boiler so that the temperature of the exhaust gas downs to 180.degree. C. to 250.degree. C.; and introducing the exhaust having a temperature of 180.degree. C. to 250.degree. C. into an electric dust collector so as to collect activated carbon. The particle size of the thus obtained distributed substantially in a range of 90 to 110 mesh and the CEC (cation exchange capacity) of the activated carbon falls within 30 to 40.

Abstract: A method for producing an activated carbon which comprises burning waste tires containing metal cord at 700.degree.-800.degree. C. in the presence of oxygen and in the presence of CO.sub.2 and water vapor and at a relative humidity of at least 60%, and recovering the activated carbon, wherein the activated carbon comprises carbon microcrystals irregularly arranged and difficulty graphitizable carbon, the difficulty graphitizable carbon comprising crosslinking lattices in the gaps among carbon microcrystals and the activated carbon having pencil hardness of from B to 6B, pore size of 100-400 .ANG., specific surface area of 150-500 m.sup.2 /g, pore volume of 1.3-5.0 ml/g and CEC of 8-13.

Abstract: An activated carbon has a pencil hardness of B-6B, pore size of 100-400.ANG., specific surface area of 150-500 m.sup.2 /g, pore volume of 1.3-5.0 ml/g, and if desired, CEC of 8-13 and is composed of carbon microcrystals irregularly arranged. An activated carbon can be produced by burning waste tires containing metal wires. The activated carbon can be used for removing SO.sub.2 and/or No.sub.x formed by combustion of heavy oil, or combustion of light oil. Apparatuses therefor are disclosed.

Abstract: A preparing process of activated carbon includes steps of: combusting scrap tires containing metal wire at 400.degree. C. to 900.degree. C. under the presence of oxygen, carbon dioxide and vapor; reheating the generated combustible gases up to 800.degree. C. to 900.degree. C. by adding a further fuel; causing the exhaust gas to heat-exchange with a water pipe boiler so that the temperature of the exhaust gas downs to 180.degree. C. to 250.degree. C.; and introducing the exhaust having a temperature of 180.degree. C. to 250.degree. C. into an electric dust collector so as to collect activated carbon. The particle size of the thus obtained distributed substantially in a range of 90 to 110 mesh and the CEC (cation exchange capacity) of the activated carbon falls within 30 to 40.