Regeneration of Molten Carbonate Fuel Cells for Deep CO2 Capture

摘要

A system and method are provided for operating a molten carbonate fuel cell to enable periodic regeneration of the fuel cell while performing increased CO 2 capture. In some aspects, periodic regeneration may be achieved by moving a location within the fuel cell where the highest density of replacement ion transport occurs. This shift may result in a new site with the highest density of alternative ion transport, while the old site may primarily transport carbonate ions. Additionally or alternatively, periodic regeneration may be performed by transporting the input flow to the fuel cell and/or relaxing the operating conditions of the fuel cell to reduce or minimize the amount of replacement ion transport.