BIOH2POWER: FROM WASTE TO RENEWABLE GASEOUS FUELS FOR CURRENT AND FUTURE VEHICLES
Purpose: The Turin landfill at “Basse di Stura is the largest in Europe and will ensure biogas production for at least another 20 years. The present work investigates the implementation of MCFCs for power generation from landfill biogas, coupled to the on-site production of hydrogen for vehicle fuelling purposes. Method: The system modeling of the plant has been performed in steady-state conditions with the aim of assessing the overall power efficiency. Since MCFCs are highly exothermic, the syngas is produced directly inside the vessel containing the fuel cell stack. Moreover, the MCFC flue gases are expanded in a turbine to increase the total power generated. Hydrogen is produced through a pressure swing adsorption system, whose feed can either be from the MCFC anode outlet, or from a split of the reformate before the anode inlet. Results: The overall net power efficiency of the system is similar for both configurations, being 56％ and 55％ respectively. However, other parameters apart from efficiency must be taken into account for the selection of the most suitable configuration, such as raw material consumption and system flexibility. The two options are discussed on the basis of these considerations. Main Conclusions: It has been shown how biogas from landfills can be a powerful renewable fuel for high-efficiency and low-emission co-generation of power and hydrogen. Future technical and economical feasibility assessments must investigate specific biogas purification methods, in order to reduce below 0.1 ppm the concentration of sulphur and halogenated species, among others, which are poisons for both fuel cell and reforming catalysts.
Molten Carbonate Fuel Cells system modelling hydrogen biogas landfill pressure swing adsorption
S. BENSAID
国际会议
北京
英文
542-547
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）