SOLID OXIDE FUEL CELL ARRANGEMENT GENERATING AMMONIA AS BYPRODUCT AND UTILIZING AMMONIA AS SECONDARY FUEL

摘要

A high-temperature solid oxide fuel cell arrangement fueled by a hydrogen or hydrocarbon fuel and generating electricity and ammonia as a byproduct comprises: (a) a cathode area fed with a humid air; (b) an anode area fed with the fuel; and (c) an oxygen- conducting electrolyte disposed between the cathode and anode areas. The cathode has an ammonia-rich tail-gas stream. The fuel cell further comprises a gas separator configured for separating ammonia generated on the cathode from tail-gas stream and means for utilizing separated ammonia selected from the group consisting of: an ammonia reformer configured for generating hydrogen to be admixed to the fuel fed to the anode, a collecting tank for storing the ammonia and an auxiliary solid oxide fuel cell fueled by the separated ammonia and any combination thereof.