Methods and devices for the production of hydrocarbons from carbon and hydrogen sources

An electrochemical system for the gas-phase reduction of a carbon-containing gas to produce one or more hydrocarbons, comprising:

• a carbon-containing gas;
• a first input for receiving the carbon-containing gas;
• a hydrogen source;
• a second input for receiving the hydrogen source;
• a cathode in fluidic communication with the first input;
• a pressure and temperature controller configured to maintain the cathode at a pressure between about 1 atm to about 50 atm and a temperature between about 100° C. to less than about 600° C.;
• an anode in fluidic communication with the second input;
• a protonic-conducting electrolyte connecting the cathode and anode;
• and
• a source of electrical potential electrically connected to the cathode and anode.

A device for the gas-phase electrochemical reduction of a carbon-containing gas to produce one or more hydrocarbons, comprising:

• a source of carbon-containing gas;
• a hydrogen source;
• a cathode in fluidic communication with the source of carbon-containing gas with the carbon-containing gas in a gaseous phase;
• a pressure and temperature controller configured to maintain the cathode at a pressure between about 1 atm to about 50 atm and a temperature between about 50° C. to less than about 600° C.;
• an anode in fluidic communication with the hydrogen source;
• a protonic-conducting electrolyte connecting the cathode and anode;
• and
• a source of electrical potential electrically connected to the cathode and anode.