Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 05, 2024 - October 06, 2024
Chemical looping combustion is considered as an alternative way of utilizing the chemical energy of fossil fuels using oxygen provided by metal oxide materials, known as the oxygen carriers. In this study, the effect of the porous microstructure of Ni-YSZ oxygen carriers on their reaction characteristics is experimentally investigated. Oxygen carriers with different internal microstructures are fabricated by varying the composition ratio of Ni and YSZ and by adding pore formers. The reaction characteristics of the oxygen carriers are analyzed through gas chromatography and thermogravimetric analysis. The degree of reduction and reaction rate are evaluated from the obtained results and compared among the oxygen carriers. Microstructure of the oxygen carriers is also analyzed by cross-sectional imaging to explore the relationship between the microstructure and reaction characteristics.
