| 摘要 |
Carbon dioxide or other gases can be separated from gas streams using ionic liquid, such as in an electrochemical cell. For example, a membrane can contain sufficient ionic liquid to reduce ionic current density of at least one of protons and hydroxyl ions, relative to carbon-containing ionic current density. A gas stream containing carbon dioxide can be introduced on a cathode side, while a source of hydrogen gas can be introduced on the anode side of the membrane. Operation of an electrochemical cell with such a membrane can separate the carbon dioxide from the gas stream and provide it at a separate outlet.
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