Description of reactions in MCFCs

 

• 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.