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- W3217466382 abstract "Chemical looping concept paves way toward intrinsically safe and efficient oxidative coupling of methane (CL-OCM) process, because it permits the reaction to proceed via repeating reduction-oxidation cycle in two reactors. It is calling for a ground-breaking catalyst with enough high selective CH4-converting lattice-oxygen carrying capacity but represents a grand challenge. Herein, we report an efficient catalyst obtainable by decorating an oxygen carrier FeMnO3 with Na2WO4, with good cycling performance, achieving a high space time yield of 29.8 gC2-C3 kgcat.−1 h−1 with 20% CH4 conversion and 80% C2-C3 selectivity at 800 °C and a low catalyst/CH4 weight ratio of 13.5. CL-OCM process is established by “FeMnO3 ↔ [MnFe2O4 + MnO]” redox cycle. Na2WO4-decoration gets lattice oxygen stored in FeMnO3 transformed from non-selective to selective due to mitigation of lattice-oxygen evolution. Scaled up CL-OCM testing with 10-gram catalyst also yields comparable results seen in the case of using 1-gram catalyst, validating great application potential." @default.
- W3217466382 created "2021-12-06" @default.
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- W3217466382 date "2022-05-01" @default.
- W3217466382 modified "2023-10-16" @default.
- W3217466382 title "An oxygen carrier catalyst toward efficient chemical looping-oxidative coupling of methane" @default.
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- W3217466382 doi "https://doi.org/10.1016/j.apcatb.2021.120948" @default.
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