The synthesis of selected state-of-the-art catalysts providing high performances in the oxidative coupling of methane (OCM) with O2 was reproduced according to the respective methods reported in literature. A reference material with identical stochiometric composition was further synthesized by applying the cellulose templating (CT) method. This method increases the surface area and affects the...

Biogas is a promising renewable energy source; however, it needs to be upgraded increase its low calorific value. In this study, oxidative coupling of methane (OCM) was selected convert higher fuel standard. Prior establishing the scaled-up OCM process, effect organic/inorganic binders on catalytic activity examined. The selection and composition catalyst pellet influenced pore structure, fract...

Direct catalytic non-oxidative coupling is a promising route for the valorization of abundant methane. Understanding mechanism difficult because reactions at surface catalyst and in gas phase via radicals are important high temperatures employed. Herein, series Mo-doped CeO2 samples with isolated Mo sites were prepared by flame spray pyrolysis method screened their performance The selectivity t...

Active sites are created on the surface of a Li/MgO catalyst used for the selective oxidation of methane by the gradual loss of carbondioxide from surface carbonate species in the presence of oxygen. Decomposition of the carbonat~ species in the absence of oxygen is detrimental to the activity of the cataIy~t. The active sites'created are not stable but disappear either as a result of reaction ...

From neutral solutions, dimeric 1,3-propanediaminetetraacetato lanthanides (NH4)2[Ln2(1,3-pdta)2(H2O)4]·8H2O [Ln = La, 1; Ce, 2] and K2[Ln2(1,3-pdta)2(H2O)4]·11H2O [Ln = La, 3; Ce, 4] (1,3-H4pdta = 1,3-propanediaminetetraacetic acid, C11H18N2O8) were isolated in high yields. The reaction of excess strontium nitrate with 1 resulted in the formation of a two dimensional coordination polymer [La2(...

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...

Non-oxidative coupling of methane is a promising route to obtain ethylene directly from natural gas. We synthesized siliceous [Fe]zeolites with MFI and CHA topologies found that they display high selectivity (>90 % for >99 CHA) ethane among gas-phase products. Deactivated can be regenerated by burning coke in air. In situ X-ray absorption spectroscopy demonstrates the isolated Fe3+ centers zeol...