Method and System for Treating CO2
OwnerGill SCHELTJENS, Georgi TRENCHEV +1inventors
InventorsGill SCHELTJENS, Georgi TRENCHEV, David ZIEGLER
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Abstract
The present invention concerns a method for producing carbon monoxide (CO), comprising the steps of: providing a gaseous initial input stream comprising carbon dioxide (CO2) to a plasma zone: at least partially converting said CO2 to CO by: (a) igniting a plasma in the plasma zone: (b) extracting an output stream from the plasma zone, said output stream comprising less CO2 than said first stream, and recycling said output stream as a gaseous input stream to said plasma zone and further converting CO2 to CO by performing steps (a) and (b), thereby obtaining a final output stream comprising more CO and less CO2 than the initial input stream.
Claims20
A method for producing carbon monoxide (CO), comprising the steps of:
- providing a gaseous initial input stream comprising carbon dioxide (CO2) to a plasma zone;
- at least partially converting said CO2 to CO by:
- (a) igniting a plasma in the plasma zone;
- (b) extracting an output stream from the plasma zone, said output stream comprising less CO2 than said initial input stream, and
- recycling said output stream as a gaseous input stream to said plasma zone and further converting CO2 to CO by performing steps (a) and (b),
- thereby obtaining a final output stream comprising more CO and less CO2 than the initial input stream.
A system for producing carbon monoxide, comprising a:
- a plasma reactor comprising a reactor chamber with a plasma zone, the plasma reactor being configured to ignite a plasma in the plasma zone, the plasma reactor further comprising a plasma inlet for a gaseous input stream and a plasma outlet for a gaseous output stream;
- a CO2 input system configured to provide a gaseous initial input stream comprising CO2 to the plasma inlet of the plasma reactor;
- an extraction system configured to extract a final output stream from the plasma outlet of the plasma reactor;
- a recycling system configured to extract said gaseous output stream from the plasma zone and recycle said gaseous output stream as said gaseous input stream to the plasma zone.
An iron production method comprising the steps of:
- produce iron from iron ore using CO, thereby releasing CO2 in a blast furnace;
- capturing said CO2;
- providing a gaseous initial input stream comprising carbon dioxide (CO2) to a plasma zone, thereby producing a plasma output stream comprising CO2, CO and O2;
- reacting said plasma output stream comprising CO2, CO and O2 with a carbon donor, said carbon donor comprising C, thereby producing a plasma output stream comprising CO2 and CO;
- separating said CO and CO2, thereby arriving at a CO-rich separator outlet and a CO2-rich separator outlet;
- recycling said CO2-rich separator outlet to said gaseous initial input stream comprising carbon dioxide (CO2);
- and
- recycling said CO-rich separator outlet to said blast furnace.
Dependencies are inferred from the claim text.