A pseudo-homogeneous model, considering the axial and radial heat mass transfer characteristics of an oxidative coupling methane (OCM) packed-bed catalytic reactor, was utilized to represent its thermal reaction performance in a wide range variation operating conditions investigated this research. This is another step towards distinguishing direct contribution reactions indirect reactor's struc...

We examined oxidative coupling of methane (OCM) over various Ce-W-O catalysts at 423 K in an electric field. Ce2(WO4)3/CeO2 catalyst showed high OCM activity. In a periodic operation test over Ce2(WO4)3/CeO2 catalyst, C2 selectivity exceeded 60% during three redox cycles. However, Ce2(WO4)3/CeO2 catalyst without the electric field showed low activity, even at 1073 K: CH4 Conv., 6.0%; C2 Sel., 2...

Ethylene production via oxidative coupling of methane (OCM) represents an interesting route for natural gas upscaling, being the focus intensive research worldwide. Here, OCM developments are analysed in terms kinetic mechanisms and respective applications chemical reactor models, discussing current challenges directions further developments. Furthermore, some thermodynamic aspects reactions al...

The conversion of methane via an OCM (Oxidative Coupling of Methane) to transportable liquid fuel has been investigated in order to utilize remote natural gas effectively. A conceptual view of this new process was developed for gasoline production based on reviews of other conventional processes and sensitivity analyses. The process developed, "ORIGINAL". is characterized by simplification of t...

Ethylene production via oxidative coupling of methane (OCM) in adiabatic packed-bed reactors is a promising route within the context natural gas valorization. However, high exothermicity OCM imposes low inlet temperatures and, hence, space-time yields. Layered-bed are proposed present work as potential alternative to mitigate this issue. In modeling investigation, first layer active Sr/La2O3 ca...

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

Oxidative coupling of methane (OCM) is a promising method for the direct conversion of methane to ethene and ethane (C2 products). Among the catalysts reported previously, Mn2O3-Na2WO4/SiO2 showed the highest conversion and selectivity, but only at 800° to 900°C, which represents a substantial challenge for commercialization. We report a TiO2-doped Mn2O3-Na2WO4/SiO2 catalyst by using Ti-MWW zeo...

ch4, c2h6 and c2h4 are the most important outlet gaseous of oxidative couple methane (ocm) reaction and this process is a new technology for conversion of natural gas to ethane and ethylene products. in this study, adsorption of ocm outlet hydrocarbons over 10x zeolite has been examined at equilibrium conditions. temperature and pressure are the most effective operational parameters in the batc...

In the microwave and radio frequency (RF) plasma catalytic reaction at room temperature, the oxidative coupling of methane (OCM) over transitional metals loaded on ZSM-5 has been carried out. The transitional metals, Fe, Ni, Co and Cu (1B family element), loaded on ZSM-5 have been tested for the OCM using the plasma catalytic reaction. In this work, the conversion of methane to C2 products has ...

The availability of large reserves of methane, which is the main component of most natural gas, makes it a very important feedstock molecule for the production of base chemicals (e.g. ethylene, propylene, and aromatics) and energy carriers (i.e. transportation fuels). More recently, the shale gas bonanza—particularly in the USA—as well as the presence of vast amounts of gas methane hydrates at ...