SULFUR MANAGEMENT AND UTILIZATION IN MOLTEN METAL ANODE SOLID OXIDE FUEL CELLS

摘要

Embodiments of a molten metal anode solid oxide fuel cell (MMA-SOFC) system comprise a first and second MMA-SOFC, a fuel contactor integral or in fluid communication with the first MMA-SOFC, a molten metal conduit that delivers molten metal from a first molten metal anode to a second molten metal anode, and one or more external electric circuits, wherein the first molten metal anode oxidizes molten metal to produce metal oxides and electrons. The fuel contactor reduces the metal oxides and produce metals and metal sulfides in the molten metal upon reaction with sulfur-containing fuel. The second molten metal anode oxidizes the metal sulfides in the metal sulfides-containing molten metal to produce metals and electrons, and the external electric circuits generate power from the electrons produced in the first and second MMA-SOFCs.