[2F15-2F19] C1化学

[2F18] Low Temperature Oxidative Coupling of CH₄ over Cerium Oxide Based Catalyst

○Maulidanti Ellen¹、Awaji Masashi¹、Osaki Riko¹、Asami Kenji¹ (1. The University of Kitakyushu)

キーワード：OCM, Low temperature, Ceria

Eliminating the deep oxidation in the gas phase through surface dimerization of CH₃ radicals is a possible way to increase C₂ yield in OCM. A low temperature reaction is required to prevent the desorption of CH₃ radicals into the gas phase. The MCY catalyst with varied metal incorporation and varied types of CeO₂ were developed. 5%FeCA catalyst has the best catalytic activity with 27% of CH₄ conversion and 1.4% of C₂ yield at 500 ^oC. The incorporation of Fe into CeO₂ produced larger specific surface area and more mesoporous pore size that effective for OCM CH₄ activity at low temperatures.