US 12,409,407 B2
Carbon dioxide capturing apparatus and capturing method
Yong Ki Park, Daejeon (KR); Hwi Min Seo, Daejeon (KR); Ki Woong Kim, Daejeon (KR); and Dae Jin Kim, Daejeon (KR)
Assigned to KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon (KR)
Appl. No. 17/597,132
Filed by KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon (KR)
PCT Filed Feb. 26, 2020, PCT No. PCT/KR2020/002776
§ 371(c)(1), (2) Date Dec. 27, 2021,
PCT Pub. No. WO2020/262795, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 10-2019-0078062 (KR), filed on Jun. 28, 2019.
Prior Publication US 2022/0266193 A1, Aug. 25, 2022
Int. Cl. B01D 53/22 (2006.01); B01D 53/12 (2006.01); B01D 53/62 (2006.01); B01D 53/83 (2006.01); B01D 53/96 (2006.01)
CPC B01D 53/12 (2013.01) [B01D 53/62 (2013.01); B01D 53/83 (2013.01); B01D 53/96 (2013.01); B01D 2252/204 (2013.01); B01D 2253/102 (2013.01); B01D 2253/108 (2013.01); B01D 2257/504 (2013.01); B01D 2258/0291 (2013.01); B01D 2259/128 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A carbon dioxide capturing apparatus comprising:
a reaction tower comprising a carbon dioxide adsorption unit or a carbon dioxide absorption unit that is configured to adsorbs or absorbs carbon dioxide from exhaust gas;
a desorption tower connected to the reaction tower, the desorption tower comprising:
an adsorbent heating unit configured to heat an adsorbent circulating inside the desorption tower, or an absorbent heating unit configured to heat an absorbent circulating inside the desorption tower;
an adsorbent or absorbent configured to circulate between the reaction tower and the desorption tower and alternately adsorb and desorb carbon dioxide, or alternately absorb and desorb carbon dioxide; and
a heat exchange unit configured to facilitate heat exchange between: an adsorbent on which carbon dioxide is adsorbed and a heated adsorbent, or an absorbent in which carbon dioxide is absorbed and a heated absorbent,
wherein the adsorbent on which carbon dioxide is adsorbed and the heated adsorbent, or the absorbent in which carbon dioxide is absorbed and the heated absorbent are transferred in a co-current flow manner within the heat exchange unit.