Integrated pyrolysis systems and methods
AssigneeContinental Cement Company
InventorRobert C. Nunemacher
Life of this patent
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Abstract
Systems and methods for pyrolyzing waste materials are described. The method utilizes waste heat from a cement kiln and the pyrolysis system includes at least a feed inerting section and a pyrolysis chamber. The method includes feeding drums of waste into the feed inerting section, replacing oxygen in the feed inerting section with carbon dioxide recovered from the cement kiln, and transporting the drums of waste through the pyrolysis chamber. The waste is pyrolyzed in the pyrolysis chamber with exhaust gasses from the cement kiln and a fuel gas created by the pyrolysis is routed to provide heat to the cement kiln.
Claims17
A method for pyrolyzing waste materials in a pyrolysis system which utilizes waste heat from a cement kiln, the pyrolysis system including a feed inerting section and a pyrolysis chamber, said method comprising:
- feeding drums of waste into the feed inerting section;
- replacing oxygen in the feed inerting section with carbon dioxide recovered from the cement kiln;
- transporting the drums of waste through the pyrolysis chamber;
- pyrolyzing the waste in the pyrolysis chamber with exhaust gasses from the cement kiln;
- and
- routing a fuel gas created by the pyrolysis to provide heat to the cement kiln.
A waste pyrolysis system for drums of waste, said system comprising:
- a cement kiln providing exhaust gasses;
- a feed inerting section;
- a pyrolysis chamber attached to said feed inerting section and receiving the drums from said feed inerting section, said pyrolysis chamber coupled to said cement kiln, said pyrolysis chamber heated by exhaust gasses from said cement kiln and creating a pyrolysis fuel gas utilized for heating said cement kiln;
- an exit inerting section attached to said pyrolysis chamber and receiving the drums from said pyrolysis chamber;
- and
- a drum unloading section attached to said exit inerting section and receiving the drums from said exit inerting section.
Dependencies are inferred from the claim text.