Abstract

The high operating temperature of solid oxide fuel cells (SOFCs) allows the application of fuels other than natural gas and also enables them to be widely integrated into state-of-the-art waste management techniques such as waste-to-energy (WtE) technologies. On the other hand, due to their varied organic content, municipal solid wastes (MSW) have great potential to be externally reformed to produce syngas (CO and H2) as the conventional fuels in SOFCs. Therefore waste-derived fuels fed to the SOFC have attracted thousands of research and development projects around the world as well as modeling evaluations in the literature. A brief study on the biogas-fueled SOFC systems was conducted in this chapter from several perspectives including environmental and energy. This chapter discusses various methods and technologies dealing with the SOFC waste/exhaust gases (mainly CO2 an H2O). In this regard, various biogas-based SOFC plant configurations investigated by numerous researches involving recirculation of anode and cathode gases for use in internal reforming and pretreatment processes, CO2 capture, hybrid systems, and others are also included.

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