Catalytic Oxidative Coupling of Methane: Heterogeneous or Homogeneous Reaction?

Direct valorization of methane via oxidative coupling of methane (OCM) is an encouraging alternative to conventional oil-based processes for the production of light hydrocarbons (ethane and ethylene). Abundant, inexpensive simple oxides such as MgO and La₂O₃ possess the ability to selectively activate methane. However,...

Enabling complete conversion of CH₄ and CO₂ in dynamic coke-mediated dry reforming (DC-DRM) on Ni catalysts

Dynamic coke-mediated dry reforming of methane (DC-DRM) is an unsteady-state strategy to overcome the limitations of co-feed operation, including the fast deactivation of the catalysts and the loss of valuable H₂ in the reverse water gas-shift reaction. This paper proves the feasibility of DC-DRM on Ni-based catalytic systems,...

Oxidative coupling of methane under microwave: core-shell catalysts for selective C₂ production and homogeneous temperature control

The oxidative coupling of methane (OCM) was investigated using a catalyst with a core@shell structure or a physical mixture comprised of MgO and SiC or Fe₃O₄, which was thermally activated via two different heating methods, namely, conventional resistive heating and microwave heating. The use of microwave radiation...