Multi-chambered electrochemical cell for carbon dioxide removal

Patent metadata

Field	Value
Publication number	US-2025109510-A1
Application number	US-202418977155-A
Country	US
Kind code	A1
Filing date	Dec 11, 2024
Priority date	Jul 18, 2022
Publication date	Apr 3, 2025
Grant date	—

Abstract

A system for a multi-chambered electrochemical cell for carbon dioxide removal includes an electrochemical cell. The electrochemical cell includes an anodic chamber at a first end of the electrochemical cell, which includes an anode. The electrochemical cell includes an acid swing chamber adjacent to the anodic chamber and separated by a cation exchange membrane. The electrochemical cell includes a desalination chamber separated from the acid swing chamber by a anion exchange membrane. The electrochemical cell includes a base swing chamber in fluid communication with the acid swing chamber and the desalination chamber. The base swing chamber is adjacent to the desalination chamber and separated by a cation exchange membrane. The electrochemical cell includes a cathodic chamber at a second end of the electrochemical cell, the cathodic chamber comprising a cathode, wherein the cathodic chamber is adjacent to the base swing chamber and separated by a second anion exchange membrane.

First claim

1 . A system for a multi-chambered electrochemical cell for carbon dioxide removal, the system comprising:
an electrochemical cell, the electrochemical cell further comprising:
an anodic chamber disposed at a first end of the electrochemical cell, the anodic chamber comprising an anode;
an acid swing chamber disposed adjacent to the anodic chamber and separated therefrom by a first cation exchange membrane;
a desalination chamber, the desalination chamber separated from the acid swing chamber by a first anion exchange membrane;
a base swing chamber in fluid communication with the acid swing chamber and the desalination chamber, wherein
the base swing chamber is disposed adjacent to the desalination chamber and separated therefrom by a second cation exchange membrane; and
a cathodic chamber disposed at a second end of the electrochemical cell, the cathodic chamber comprising a cathode, wherein;
the cathodic chamber is disposed adjacent to the base swing chamber and separated therefrom by a second anion exchange membrane.

2 . (canceled)

3 . The system of claim 1 , wherein the system comprises a plurality of distinct electrochemical cells configured to be in fluid communication and electrically connected.

4 . The system of claim 3 , wherein each of the plurality of distinct electrochemical cells is separated by a dividing bipolar membrane.

5 . (canceled)

6 . The system of claim 1 , wherein the anodic chamber is configured to generate protons and the first cation exchange membrane is configured to be permeable to protons.

7 . The system of claim 1 , wherein the cathodic chamber is configured to generate hydroxides.

8 . The system of claim 1 , wherein the first anion exchange membrane is configured to be permeable to hydroxides.

9 . The system of claim 1 , wherein the system is configured as set forth in FIG. 9 .

10 . A system for a multi-chambered electrochemical cell for carbon dioxide removal, the system comprising:
an electrochemical cell, the electrochemical cell further comprising:
an anodic chamber disposed at a first end of the electrochemical cell, the anodic chamber comprising an anode;
an acid swing chamber disposed adjacent to the anodic chamber and separated therefrom by a cation exchange membrane;
a base swing chamber in fluid communication with the acid swing chamber, wherein the base swing chamber is disposed adjacent to the acid swing chamber and separated therefrom by a membrane, and wherein the membrane is non-ionic; and
a cathodic chamber disposed at a second end of the electrochemical cell, the cathodic chamber comprising a cathode,
wherein the cathodic chamber is disposed adjacent to the base swing chamber and separated therefrom by an anion exchange membrane.

11 . The system of claim 10 , wherein the base swing chamber and the cathodic chamber are disposed within a common base swing/cathodic chamber.

12 . (canceled)

13 . (canceled)

14 . The system of claim 11 , wherein the first electrochemical cell is configured as set forth in FIG. 3 .

15 . The system of claim 10 , wherein the system comprises a plurality of distinct electrochemical cells configured to be in fluid communication and electrically connected.

16 . The system of claim 15 , wherein each of the plurality of distinct electrochemical cells is separated by a dividing bipolar membrane.

17 . The system of claim 16 , wherein each of the plurality of distinct electrochemical cells is configured such that:
the first cathodic chamber disposed at the second end of the first electrochemical cell is disposed adjacent to a second cathodic chamber disposed at a second end of a second electrochemical cell, such that the first electrochemical cell and the second electrochemical cell share a cathode.

18 . The system of claim 10 , wherein the membrane comprises polyvinylidene fluoride.

19 . The system of claim 10 wherein the membrane is an anion exchange membrane.

20 . The system of claim 10 , configured as set forth in FIG. 5 .

21 - 49 . (canceled)

50 . A method for a multi-chambered electrochemical cell for carbon dioxide removal, the method comprising:
providing water to an anodic chamber and a cathodic chamber, the anodic and the cathodic chambers configured to dissociate the water into protons and hydroxides, respectively; providing a carbon dioxide-loaded amine to an acid swing chamber, the acid swing chamber in ionic communication with the anodic chamber; providing the protons and counterions to the acid swing chamber, thereby acidifying the carbon dioxide-loaded amine and desorbing the carbon dioxide therefrom, producing an acidified amine; capturing the desorbed carbon dioxide; providing the acidified amine to a base swing chamber, the base swing chamber in ionic communication with the cathodic chamber; and providing the hydroxides and counterions to the base swing chamber, thereby alkalinizing the amine to produce an alkalinized amine.

51 - 107 . (canceled)

108 . The system of claim 1 , wherein the electrochemical cell is configured as set forth in FIG. 1 .

109 . The system of claim 1 , wherein the acid swing chamber is configured to receive a carbon dioxide-loaded amine.

110 . The system of claim 1 , wherein the acid swing chamber is configured to receive a carbon dioxide-loaded amine, and the carbon dioxide-loaded amine is in liquid form.

Assignees

• Univ California

Inventors

• Simonetti Dante
• Sant Gaurav
• Jassby David
• Tseng Yenwen
• Liotta Andrew
• Buttles John
• Haddad Maryam

Classifications

• B01D61/445

  with bipolar membranes; Water splitting · CPC title

• B01D2257/504

  Carbon dioxide · CPC title

• B01D53/326

  in electrochemical cells · CPC title

• C25B9/70

  Assemblies comprising two or more cells · CPC title

• C25B9/19

  with diaphragms · CPC title