Method and apparatus for thermochemical conversion of materials
OwnerRobert L. Hance, John E. Kane +1inventors
InventorsRobert L. Hance, John E. Kane, Stephanie G. Dye
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Abstract
A system for treating carbon-containing or silicon-containing end-of-life material includes a reactor 10 for simultaneously supporting oxidation of the waste material and conversion of CO2 within the reactor. A metal oxide or metal is input to the reactor to convert the CO2 to a mineralized CO2 product. A cold trap 44 is provided for capturing exhaust gases from the reactor and returning condensate to the reactor, and a pump 50 maintains a desired vacuum or pressure within the reactor and the cold trap.
Claims20
1-14. (canceled)
A method for treating a carbon-containing waste material, comprising:
- supporting simultaneous oxidation of the waste material and conversion to CO2 in a reaction chamber of a reactor;
- simultaneously with said oxidation and conversion, inputting a metal oxide or metal to the reaction chamber to convert the CO2 to a mineral product;
- capturing exhaust gases from the reaction chamber;
- returning at least a portion of the captured exhaust gases to the reaction chamber;
- and
- maintaining a desired pressure within the reaction chamber.
(canceled)
A method for treating a carbon-containing waste material, comprising:
- supporting simultaneous oxidation of the waste material and conversion to CO2 in a reaction chamber of a fluid bed reactor that rotates about a substantially horizontal axis;
- simultaneously with said oxidation and conversion, inputting a metal oxide or metal to the reaction chamber to convert the CO2 to a mineral product;
- capturing exhaust gases from the reaction chamber;
- and
- returning at least a portion of the captured exhaust gases to the reaction chamber;
- and
- maintaining a desired pressure within the fluid bed reactor.
A method for treating a carbon-containing waste material to generate power or provide heat, comprising:
- supporting simultaneous oxidation of the waste material and conversion to CO2 in a reaction chamber of a reactor;
- simultaneously with said oxidation and conversion, inputting a metal oxide or metal to the reaction chamber to convert the CO2 to a mineral carbonate;
- inputting a reaction gas or vapor to the reaction chamber;
- capturing exhaust gases from the reaction chamber and returning at least a portion of the exhaust gases to the reaction chamber;
- and
- maintaining a desired pressure within the reaction chamber.
Dependencies are inferred from the claim text.