公开(公告)号：US11964232B2

公开(公告)日：2024-04-23

申请号：US17515666

申请日：2021-11-01

Applicant: DENSO CORPORATION ,  KYOTO UNIVERSITY

Inventor： Hiroaki Umeda ,  Youhei Morimoto ,  Hiroki Takezaki ,  Satoshi Horike

IPC: C25B11/02 ,  B01D53/32 ,  C25B11/031 ,  C25B11/043

CPC classification number: B01D53/326 ,  C25B11/031 ,  C25B11/043

Abstract: Provided is a carbon dioxide recovery system that separates CO2 from a CO2-containing gas containing CO2 by an electrochemical reaction, and comprises an electrochemical cell comprising a working electrode containing a CO2 adsorbent, and a counter electrode. Application of a voltage between the working electrode and the counter electrode causes electrons to be supplied from the counter electrode to the working electrode, and enables the CO2 adsorbent to bind to CO2 as electrons are supplied. The CO2 adsorbent is a crystalline porous body, and has a molecular structure in which a functional group that exchanges electrons and binds to CO2 is regularly arranged.

公开(公告)号：US20240252981A1

公开(公告)日：2024-08-01

申请号：US18619372

申请日：2024-03-28

Applicant: DENSO CORPORATION

Inventor： Yoshiki MORIOKA ,  Hiroki Takezaki

IPC: B01D53/32 ,  B01D53/02 ,  B01D53/62

CPC classification number: B01D53/326 ,  B01D53/02 ,  B01D53/62 ,  B01D2253/25 ,  B01D2257/504 ,  B01D2259/812

Abstract: A carbon dioxide recovery system separates carbon dioxide from a carbon dioxide contained gas that contains carbon dioxide by an electrochemical reaction. The carbon dioxide recovery system includes an electrochemical cell including a working electrode and a counter electrode, the working electrode including a carbon dioxide adsorbent. When a voltage is applied between the working electrode and the counter electrode, electrons are supplied from the counter electrode to the working electrode, and the carbon dioxide adsorbent adsorbs carbon dioxide as the electrons are supplied. An electrolytic substance is provided between the working electrode and the counter electrode. The electrolytic substance is a substance having resistance to a redox reaction with at least one of the carbon dioxide contained gas, the working electrode, or the counter electrode when a voltage is applied between the working electrode and the counter electrode.