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US 9,285,116 B2Granted
Method and a system for converting carbon dioxide into chemical starting materials
AssigneeSiemens Aktiengesellschaft
InventorsGünter Schmid, Dan Taroata, Elena Arvanitis, Manfred Baldauf, Frank Walachowicz
Life of this patent
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Abstract
A method and apparatus convert carbon dioxide into chemical starting materials. Carbon dioxide is isolated from flue gas emitted by a combustion system. An electropositive metal is burned in an atmosphere of isolated carbon dioxide to reduce the carbon dioxide into chemical starting materials.
Claims10
A method for converting carbon dioxide into chemical starting materials, the method comprising:
- isolating carbon dioxide from flue gas emitted by a combustion system, to produce an isolated carbon dioxide;
- burning an electropositive metal, in an atmosphere of the isolated carbon dioxide in an exothermic burning reaction that produces thermal energy, to reduce the isolated carbon dioxide into the chemical starting materials, wherein the electropositive metal is a lithium metal, and the burning the electropositive metal produces reaction products comprising lithium carbonate and lithium oxide;
- regenerating the lithium metal from the lithium carbonate and lithium oxide;
- and
- using a part of the thermal energy produced by the exothermic burning reaction of the electropositive metal with the isolated carbon dioxide to supply heat to a desorption process of a carbon dioxide capture/isolation process.
2 more elements
Dependencies are inferred from the claim text.