Syngas production for DME synthesis from Sorption Enhanced Gasification of Biomass: A Pilot Plant-based Case Study

70712European Commissio

Experiences from Oxy-fuel Combustion of Bituminous Coal in a 150 kWth Circulating Fluidized Bed Pilot Facility

AbstractThe oxy-fuel combustion in a circulating fluidized bed was investigated in a 150 kWth pilot facility. A mixture of oxygen and recirculated flue gas was used for the combustion of bituminous coal. The experiments were set to observe the influence of operating conditions on gas concentrations of CO and NOX along with solid burn out. The results in regard to the difference between air and oxy-fuel atmosphere as well as an increase of the inlet oxygen concentration are presented in this paper and compared with results from other research groups

Fireside Corrosion during Oxyfuel Combustion Considering Various SO2 Contents

AbstractThis work encompasses evaluation of deposit and material related limitations on boiler performance and lifetime of CO2-free, oxyfuel operated power plants. The aim of the study was to determine the reliability of advanced and conventional boiler materials. Six alloys, varying from state-of-the-art ferritic-martensitic and austenitic Fe-based steels to an advanced Ni-based superalloy, were selected for the corrosion tests. Impact of oxy-firing of two fuels is considered in the study: S-lean bituminous coal from Indonesia and S-rich bituminous coal from Venezuela. Fireside corrosion tests were performed by two laboratories using varying methodologies: exposures in a combustion test rig using cooled corrosion probes followed by laboratory exposures and isothermal laboratory exposures only. The tests result in a similar ranking of the alloys’ corrosion resistance, but also revealed some differences in the formed corrosion products