Electrochemical carbon dioxide converter and liquid regenerator
A carbon dioxide conversion system for an environment includes a first gas-liquid contactor-separator downstream of the environment; an electrochemical conversion cell downstream of the first gas-liquid contactor-separator; and a cleaned ionic liquid storage intermediate the first gas-liquid contactor-separator and the electrochemical conversion cell.
1. A carbon dioxide conversion system for an environment, comprising:
a first gas-liquid contactor-separator downstream of the environment;
an electrochemical conversion cell downstream of the first gas-liquid contactor-separator, the electrochemical conversion cell configured to discharge CO and H 2 ; and
a cleaned ionic liquid storage intermediate the first gas-liquid contactor-separator and the electrochemical conversion cell,
wherein the electrochemical conversion cell is further configured to discharge cleaned liquid absorbent to the ionic liquid storage.
2. The system of claim 1 , wherein the environment is closed to ambient gas.
3. The system of claim 1 , wherein the first gas-liquid contactor-separator comprises a hollow fiber membrane bundle.
4. A carbon dioxide conversion system for an environment closed to ambient gas, comprising:
a scrubber downstream of the environment;
an electrochemical conversion cell downstream of the scrubber, the electrochemical conversion cell configured to discharge CO and H; and
an ionic liquid storage intermediate the scrubber and the electrochemical conversion cell;
wherein the scrubber is configured to receive gas containing carbon dioxide from the environment, receive cleaned liquid absorbent from the ionic liquid storage, and discharge carbon dioxide-depleted gas to the environment,
wherein the scrubber is further configured to discharge used liquid absorbent to the electrochemical conversion cell.
5. The system of claim 4 , wherein the scrubber is a gas-liquid contactor-separator.
6. The system of claim 4 , wherein the electrochemical conversion cell is configured to discharge cleaned liquid absorbent to the ionic liquid storage.
7. The system of claim 4 , wherein the electrochemical conversion cell is configured to discharge O2 to the environment.
8. A carbon dioxide conversion system for an environment closed to ambient gas, comprising:
a scrubber downstream of the environment;
an electrochemical conversion cell downstream of the scrubber, the electrochemical conversion cell configured to discharge CO and H; and
an ionic liquid storage intermediate the scrubber and the electrochemical conversion cell;
wherein:
the scrubber is configured to receive gas containing carbon dioxide from the environment, receive cleaned liquid absorbent from the ionic liquid storage, and discharge carbon dioxide-depleted gas to the environment, and
the electrochemical conversion cell is further configured to discharge cleaned liquid absorbent to the ionic liquid storage.