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US 7,344,622 B2Granted
Pyrolytic process and apparatus for producing enhanced amounts of aromatic compounds
OwnerCharles W. Grispininventor
Life of this patent
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Abstract
A pyrolysis process and reactor converts various hydrocarbons such as waste materials, for example, scrap polymers, tires, etc., into various chemical components or amounts thereof, not otherwise produced by conventional pyrolytic processes. A large reactor size is utilized in association with a low heat input per unit weight of charge. A thick pyrolyzate/“char” layer is formed during pyrolysis. The product or various components thereof can be utilized as a fuel or octane additive.
Claims22
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.
6 more elements
An apparatus for the pyrolysis of a hydrocarbon material comprising:
- a reactor comprising:
- a plurality of units comprising at least a first stage unit and a second stage unit, the first stage unit comprising a first inner walled vessel and the second stage unit comprising a second inner wall vessel, wherein the first inner walled vessel comprises a material input opening and a material output opening and the second inner walled vessel comprises a material input opening and a material output opening, the material output opening of the first inner walled vessel is in physical communication with the material input opening of the second inner wall vessel;
- a heat source located at a position beneath the first inner walled vessel;
- and
- wherein the reactor has an outer wall and a gas conveying space between the outer wall and the first inner wall vessel and the second inner wall vessel.
2 more elements
An apparatus for the pyrolysis of a hydrocarbon material comprising:
- a reactor comprising:
- a first stage unit and a second stage unit, the first stage unit comprising a first inner wall vessel and the second stage unit comprising a second inner wall vessel wherein the first inner wall vessel comprises a material input opening and a material output opening and the second inner wall vessel comprises a material input opening and a material output opening, the material output opening of the first inner wall vessel is in physical communication with the material input opening of the second inner wall vessel;
- a heat source located at a position beneath the first inner walled vessel;
- wherein the reactor has an outer wall and a gas conveying space between the outer wall and the first inner wall vessel and the second inner wall vessel;
- wherein the first inner wall vessel comprises an air lock adjacent the material input opening, and the second inner wall vessel comprises an air lock adjacent the material output opening;
- and
- wherein the first inner walled vessel of the first stage unit comprises a bed of hydrocarbon material which is oriented to facilitate gravitational flow of the hydrocarbon material from the material input opening of the first inner walled vessel to the material output opening of the first inner walled vessel.
4 more elements
Dependencies are inferred from the claim text.