The anode process involves a reaction between hydrogen and carbonate ions (CO3=) from the electrolyte.
The reaction produces water and carbon dioxide (CO2 ) while releasing electrons to the anode
The cathode process combines oxygen and CO2 from the oxidant stream with electrons from the cathode to produce carbonate ions which enter the electrolyte.
The need for CO2 in the oxidant stream requires a system for collecting CO2 from the anode exhaust and mixing it with the cathode feed stream.