US 11,655,154 B2
Processes for converting carbon dioxide
Nanthakumar Victor Emmanuel, Toronto (CA); Kamran Khozan, Toronto (CA); Serge Kovtun, Toronto (CA); and Mohammad Al Quayyum, Toronto (CA)
Assigned to CVMR ENERGY METALS INC., Toronto (CA)
Filed by CVMR ENERGY METALS INC., Toronto (CA)
Filed on Apr. 3, 2020, as Appl. No. 16/839,578.
Claims priority of provisional application 62/829,356, filed on Apr. 4, 2019.
Prior Publication US 2020/0317526 A1, Oct. 8, 2020
Int. Cl. F01N 3/10 (2006.01); C01B 32/20 (2017.01); C01B 32/205 (2017.01); C01B 32/184 (2017.01)
CPC C01B 32/205 (2017.08) [C01B 32/184 (2017.08); F01N 3/10 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A process for converting gaseous carbon dioxide into solid carbon, comprising:
producing gaseous exhaust material via an industrial process, wherein the gaseous exhaust material includes carbon dioxide;
treating the gaseous exhaust material such that a gaseous intermediate, enriched in gaseous carbon dioxide relative to the gaseous exhaust material, is produced; and
emplacing a reaction zone material, including gaseous carbon dioxide, gaseous carbon monoxide, and an operative reagent, within a reaction zone, such that gaseous carbon dioxide, gaseous carbon monoxide, and the operative reagent are disposed within the reaction zone, and with effect that a reactive process is effected, such that a product material is produced;
wherein:
a ratio of a total number of moles of gaseous carbon monoxide, disposed within the reaction zone, to a total number of moles of gaseous carbon dioxide, disposed within the reaction zone, is at least 1:4;
the operative reagent is at least one of metallic iron, metallic nickel, and metallic magnesium;
the emplacing includes supplying the gaseous intermediate to the reaction zone;
the product material includes solid carbon-comprising material; and
the treating includes:
separating the gaseous exhaust material into at least a gaseous carbon dioxide-enriched intermediate precursor and a gaseous carbon dioxide-depleted product; and
converting at least a fraction of the gaseous carbon dioxide of the gaseous carbon dioxide-enriched intermediate precursor to gaseous carbon monoxide, with effect that the gaseous intermediate is obtained;
such that the gaseous intermediate includes gaseous carbon dioxide and gaseous carbon monoxide.