US 12,460,143 B2
Method to capture and utilize CO2 and an installation for capturing and utilizing CO2
Varun Singh, Ghent (BE); Vladimir Galvita, Lochristi (BE); Mark Saeys, Zottegem (BE); and Guy Marin, Ghent (BE)
Assigned to Universiteit Gent, Ghent (BE)
Appl. No. 17/783,012
Filed by Universiteit Gent, Ghent (BE)
PCT Filed Dec. 8, 2020, PCT No. PCT/EP2020/084996
§ 371(c)(1), (2) Date Jun. 7, 2022,
PCT Pub. No. WO2021/116064, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 19214419 (EP), filed on Dec. 9, 2019.
Prior Publication US 2023/0028243 A1, Jan. 26, 2023
Int. Cl. B01D 53/62 (2006.01); B01D 53/82 (2006.01); B01J 20/04 (2006.01); C10K 1/32 (2006.01)
CPC C10K 1/32 (2013.01) [B01D 53/62 (2013.01); B01D 53/82 (2013.01); B01J 20/041 (2013.01); B01D 2251/102 (2013.01); B01D 2253/1122 (2013.01); B01D 2257/504 (2013.01)] 10 Claims
OG exemplary drawing
 
1. Cyclic method of capturing and utilizing CO2 contained in a gas stream, said method comprising a first and a second step wherein
said first step comprises introducing a first gas stream to contact a first solid material, a second solid material and a CO2 sorbent material, said first gas stream comprising CO2 and at least one reductant, with the process conditions of said first step comprising a temperature ranging between 573 K and 1473 K and a pressure ranging between 0.1 and 100 bar;
said second step comprises introducing a second gas stream to contact said CO2 sorbent material, said second solid material and said first solid material, said second gas stream comprising at least one oxidant, said oxidant comprising oxygen or nitrogen oxides with the process conditions of said second step comprising a temperature ranging between 573 K and 1473 K and a pressure ranging between 0.01 and 10 bar;
wherein said first solid material has a first thermodynamic equilibrium oxygen partial pressure and said second solid material having a second thermodynamic equilibrium oxygen partial pressure, with said second thermodynamic equilibrium oxygen partial pressure being larger than said first thermodynamic equilibrium oxygen partial pressure at the process conditions of said first step and at the process conditions of said second step,
wherein said first solid material oxidizes said at least one reductant at least partially in said first step and under the process conditions of said first step and said first solid material is oxidized by CO2 in said second step and under the process conditions of said second step and wherein said second solid material oxidizes said at least one reductant in said first step and under the process conditions of said first step and said second solid material is not oxidized by CO2 and not oxidized by H2O in said second step and under the process conditions of said second step and
wherein said CO2 sorbent material is capturing CO2 in said first step under the process conditions of said first step and said CO2 sorbent material is releasing CO2, in said second step and under the process conditions of said second step.