The covering material of an electric cord was pyrolyzed in an atmosphere up to 63wt percent and the others were produced as gases at the pyrolysis completion under the heating condition of 1 degree C/min. The partially combustion method and the high pressure pyrolysis method were conducted to reduce the solidified tar yield. The principal components of hydrocarbons in the partially combustion were C//1, C//2 and C//4. The hydrocarbons above C//5 were not detected. The tar was reduced with increases of oxygen concentration and final temperature, while CO and CO//2 increase with oxygen concentration. On the other hand, the solidified tar in the high pressure pyrolysis method was not produced on the range above 5kg/cm**2, and the liquefied oil was done at 75wt percent of yield.
All Science Journal Classification (ASJC) codes