Oxidative Coupling of Methane Over Mixed BaCl2-TiO2-SnO2 and Na2WO4-Mn/SiO2 Catalysts
نویسندگان
چکیده
منابع مشابه
MnTiO3-driven low-temperature oxidative coupling of methane over TiO2-doped Mn2O3-Na2WO4/SiO2 catalyst
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...
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ors that form stronger bonds with H-atoms react with lower sensitivity to the strength of the C-H bond being activated. We have previously shown that reactions with energetic H-abstractors, such as OH radicals, react less selectively with the weaker C-H bonds in HCHO (relative to stronger C-H bonds in CH4) than more stable radicals, such as O and HO2. OH radicals are among the most thermodynami...
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A series of zirconia doped Li/MgO catalysts with a fixed amount of zirconia and varying concentrations of lithium was used for the oxidative coupling of methane. It was found that an increase in lithium concentration resulted in a decrease in initial activity, while the selectivity was not affected. The life-time of Zr doped Li/MgO catalysts with a fixed concentration of ZrOz is a function of t...
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in this article, the effect of operating conditions, such as temperature, gas hourly space velocity (ghsv), ch4/o2 ratio and diluents gas (mol% n2) on ethylene production by oxidative coupling of methane (ocm) in a fixed bed reactor at atmospheric pressure was studied over mn/na2wo4/sio2 catalyst. based on the properties of neural networks, an artificial neural network was used for model develo...
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ژورنال
عنوان ژورنال: Asian Journal of Chemistry
سال: 2013
ISSN: 0970-7077,0975-427X
DOI: 10.14233/ajchem.2013.15116