Choji FukuharaSakhon RatchahatAsuka KamiyamaMasao SudohRyo WatanabeNational University Corporation Shizuoka UniversityMahidol UniversityAmano Institute of Technology2020-01-272020-01-272019-01-01Chemistry Letters. Vol.48, No.5 (2019), 441-44413480715036670222-s2.0-85066111460https://repository.li.mahidol.ac.th/handle/20.500.14594/50590© 2019 The Chemical Society of Japan. The methanation performance of a Ni/CeO2 structured catalyst having a spiral shape was investigated using a feed material gas containing 1-11 vol % oxygen. The spiral catalyst exhibited high methane yield for a high oxygen concentration (9-11 vol %) and fast feed flow rate even under an auto-methanation condition, which does not require external heating. Such high methane yield was continuously maintained for 60 hours or longer. Under the auto-methanation over the structured catalyst, the reaction field generated high thermal energy, which did not exceed the Tammann temperature of the nickel component, due to selective hydrogen combustion.Mahidol UniversityChemistryArticleSCOPUS10.1246/cl.190025