Patent ID: 7344622

Claim:
An apparatus for the pyrolysis of a hydrocarbon material comprising: a double-walled vessel comprising: an upper stage comprising: an inclined upper inner walled vessel having an upper material input means and a lower material output means; an upper outer walled vessel having an upper gas output means and a lower gas input means and surrounding the upper inner walled vessel such that an upper gas conveying space is interposed between said upper inner walled vessel and said upper outer walled vessel; a lower stage comprising: an inclined lower inner walled vessel having an upper material input means connected to the lower material output means of the upper inner walled vessel and a lower material output means; a lower outer walled vessel having an upper gas output means connected to the lower gas input means of the upper outer walled vessel and surrounding the lower inner walled vessel such that a gas conveying space is interposed between said inclined lower inner walled vessel and said lower outer walled vessel; and a heater positioned in the lower stage.