US 12,258,640 B2
Systems and methods for improved carbon capture associated with molten metal production
Rodney John Allam, Lanhill (GB)
Assigned to 8 Rivers Capital, LLC, Durham, NC (US)
Filed by 8 Rivers Capital, LLC, Durham, NC (US)
Filed on Jan. 24, 2024, as Appl. No. 18/421,103.
Claims priority of provisional application 63/441,060, filed on Jan. 25, 2023.
Prior Publication US 2024/0247327 A1, Jul. 25, 2024
Int. Cl. C21B 7/00 (2006.01)
CPC C21B 7/002 (2013.01) [C21B 2100/282 (2017.05); C21B 2100/62 (2017.05); C21B 2100/66 (2017.05)] 14 Claims
OG exemplary drawing
 
1. A method for molten metal production comprising:
combusting a fuel in the presence of a metal ore and a reducing gas in a reactor for producing at least a molten metal product and a top gas including carbon dioxide (CO2) and a combustible component;
passing at least a portion of the top gas to a combustor arranged downstream of the reactor so that the top gas is combusted with an oxidant in the combustor to provide a combustion product stream;
passing at least a portion of the combustion product stream through one or more heat exchangers arranged downstream of the combustor to remove heat therefrom and to provide a cooled combustion product stream;
passing the cooled combustion product stream to one or more processing components arranged downstream of the heat exchanger and configured to capture CO2 from the cooled combustion product stream; and
recycling at least a portion of the captured CO2 to the combustor.