Reaction Chemistry of W-Mn/SiO2 Catalyst for the Oxidative Coupling of Methane

摘要/Abstract

摘要： Abstract: Reaction chemistry of the OCM reaction on W-Mn/SiO2 catalyst has been reviewed in this account. Initial activity and selectivity, stability in a long-term reaction, reaction at elevated pressures and a modelling test in a stainless-steel uidized-bed reactor show that W-Mn/SiO2 has promising performance for the development of an OCM process that directly produces ethylene from natural gas. A study on surface catalytic reaction kinetics and used catalyst structure characterization revealed a possible reason why C2 and COx selectivity changed during the long-term reaction. Further improvement of the catalyst composition and preparation method should be a future direction of study on OCM reaction over W- Mn/SiO2 catalyst.

关键词: W-Mn/SiO2 catalyst, oxidative coupling of methane, elevated pressure, methane

Abstract: Abstract: Reaction chemistry of the OCM reaction on W-Mn/SiO2 catalyst has been reviewed in this account. Initial activity and selectivity, stability in a long-term reaction, reaction at elevated pressures and a modelling test in a stainless-steel uidized-bed reactor show that W-Mn/SiO2 has promising performance for the development of an OCM process that directly produces ethylene from natural gas. A study on surface catalytic reaction kinetics and used catalyst structure characterization revealed a possible reason why C2 and COx selectivity changed during the long-term reaction. Further improvement of the catalyst composition and preparation method should be a future direction of study on OCM reaction over W- Mn/SiO2 catalyst.

Key words: W-Mn/SiO2 catalyst, oxidative coupling of methane, elevated pressure, methane

Shuben Li. Reaction Chemistry of W-Mn/SiO2 Catalyst for the Oxidative Coupling of Methane[J]. 能源化学(英文), 2003, 12 (1): 1-9.

Shuben Li. Reaction Chemistry of W-Mn/SiO2 Catalyst for the Oxidative Coupling of Methane[J]. Journal of Energy Chemistry, 2003, 12 (1): 1-9.

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