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US 2012/0066974 A1Published application
Tapered drum pyrolysis
AssigneeRed Lion Bio-Energy Technologies
InventorsRoger Jorgenson, Douglas Struble
Life of this patent
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Abstract
Pyrolysis and gasification systems and methods are disclosed herein. In accordance with an embodiment, a feedstock hopper receives a carbonaceous feedstock that transitions into a tapered pyrolysis drum. The tapered pyrolysis drum rotates about an axis and drives off carbon based volatiles contained in the carbonaceous feedstock received from the feedstock hopper.
Claims42
A pyrolysis and gasification system, comprising:
- a feedstock hopper that receives a carbonaceous feedstock;
- and
- a tapered pyrolysis drum that rotates about an axis and drives off carbon based volatiles contained in the carbonaceous feedstock.
An apparatus operable in a carbonaceous gasification environment, comprising:
- a hopper that supplies a carbonaceous feedstock through an airlock vessel that removes entrapped air from the carbonaceous feedstock;
- and
- a tapered pyrolysis drum that receives the carbonaceous feedstock from the airlock vessel, the tapered pyrolysis drum includes an internal flight that increases heat transfer to the carbonaceous feedstock.
A method, comprising:
- introducing feedstock material to a charge end of a tapered pyrolysis drum;
- rotating the tapered pyrolysis drum to advance the feedstock material from the charge end of the tapered pyrolysis drum to a discharge end of the tapered pyrolysis drum;
- heating the feedstock within the tapered pyrolysis drum, wherein a degree of heat applied at the charge end of the tapered pyrolysis drum is less than the degree of heat applied at the discharge end of the tapered pyrolysis drum;
- and
- evacuating from the discharge end of the tapered pyrolysis drum product gas, and fully pyrolyzed, or partially pyrolyzed, feedstock material.
2 more elements
Dependencies are inferred from the claim text.