Oxidative coupling of methane over Na2WO4/Mn/MgxTi1-xOy : Effect of Mg-to-Ti ratio on the catalytic activity

Title
Oxidative coupling of methane over Na2WO4/Mn/MgxTi1-xOy : Effect of Mg-to-Ti ratio on the catalytic activity
Authors
전원진최재욱하정명서동진
Keywords
MgTi mixed oxide; oxidative coupling of methane; 촉매
Issue Date
2012-07
Publisher
15th International Congress on Catalysis
Abstract
Methane, a major component of natural gas, is a valuable fossil fuel which can be a resource for the useful products, such as clean oil, methanol, and olefin, in the chemical industry. Ethylene is one of the important chemicals obtained by conversion of methane, which is achieved by chemical processes such as oxidative coupling of methane (OCM). While the OCM occurrs with reactants of methane and O2 at the temperature higher than 700 ºC, both the conversion of methane and the selectivity to ethylene are low without catalysts and improved with catalysts such as Na2WO4/Mn/SiO2 [1]. The OCM catalyst’s performance has not been well-understood because it occurrs as a radical reaction at very high reaction temeratures. In this study, we synthesized the new catalysts of Mg-Ti mixed-oxide-supported Na2WO4 Results and discussion for the OCM and investigated the effects of Mg-to-Ti ratio to find the roles of Mg for the improved catalytic activity, which helps better desing the catalysts.
URI
http://pubs.kist.re.kr/handle/201004/42899
Appears in Collections:
KIST Publication > Conference Paper
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