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US 10,151,481 B2Granted
Material utilization with an electropositive metal
AssigneeSiemens Aktiengesellschaft
InventorGünter Schmid
Life of this patent
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Abstract
A material is utilized with an electropositive metal. This can be used as post-oxyfuel process for oxyfuel power stations. Here, an energy circuit is realized by the material utilization. An electropositive metal, in particular lithium, serves as energy store and as central reaction product for the conversion of nitrogen and carbon dioxide into ammonia and methanol. The power station thus operates without CO2 emissions.
Claims11
A method for industrial utilization of carbon dioxide, comprising:
- receiving highly concentrated carbon dioxide produced by a fuel combustion process in which a fossil fuel is combusted with oxygen to produce the highly concentrated carbon dioxide and to generate electrical energy;
- and
- converting the carbon dioxide produced by the fuel combustion process to methanol by:
- in a lithium combustion process after the fuel combustion process, reacting the carbon dioxide with lithium to produce at least carbon monoxide and lithium carbonate as combustion products;
- and
- in a reaction process, adding hydrogen to the carbon monoxide to produce methanol, such that carbon atoms of the fossil fuel are (a) burnt to form highly concentrated carbon dioxide and (b) reduced by the lithium and converted to methanol.
3 more elements
A method for industrial utilization of carbon dioxide, comprising:
- in a first combustion process, combusting a fossil fuel with oxygen to produce highly concentrated carbon dioxide and to generate electrical energy,
- delivering the carbon dioxide produced by the first combustion process to a second combustion process;
- in the second combustion process, reacting the carbon dioxide with lithium to produce at least carbon monoxide and lithium carbonate as combustion products;
- and
- in a reaction process, adding hydrogen to the carbon monoxide to produce methanol,
- such that carbon atoms of the fossil fuel are (a) burnt to form highly concentrated carbon dioxide and (b) reduced by the lithium and converted to methanol;
- and
- electrochemically reducing the lithium carbonate produced in the second combustion process to thereby recirculate the lithium carbonate into lithium.
5 more elements
Dependencies are inferred from the claim text.