Module 5 : Modern Characterization of materials

Lecture 40: Fuel Cells – Basic types and design

 



Reactions in MCFC

  • 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.