Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Methane activation"”.
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Rational Catalyst Design for Direct Conversion of CH4 and CO2
… for mitigation of carbon dioxide and methane levels in the atmosphere are of major global interest. One of the alternatives that attracts much scientific attention is their chemical utilization, especially because both of these gases are components of the natural gas, and rapid and …
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Catalytic properties, densification and mechanical properties of nanocrystalline yttria-zirconia-based materials
… (7YZ) nanocrystals to form nanocomposites for methane combustion. These novel catalysts were very active and thermally stable. In particular, 25 wt% Mn203-coated 7YZ and 25 wt% Mn203-doped 7YZ showed remarkably low light-off temperatures of 3750C and 3580C, respectively. These catalysts were …
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Catalytic Conversion of Carbon-Containing Compounds into Valuable Chemicals and Fuels
… C1 compounds such as carbon dioxide and methane, to valuable chemicals and fuels will hopefully address concerns over decreasing supplies of fossil fuels and mitigate the eects of greenhouse gas emissions on global climate change. Many challenges, however, remain to be addressed before …
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Development of Catalytic Processes for the Transformation of Low Value Chemical Feedstocks to Value Added Chemicals
… prior work for the catalytic conversion of methane to methanol, methane to ethane and higher alkanes, and glycerol to 1,3-propanediol. Chapter 2 describes efforts to study the kinetics of methanol oxidation by aqueous sodium periodate. The presence of methane pressure in these reactions …
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Non-thermal Plasma Assisted Catalytic Upgrading of Low-cost Hydrocarbons
… This novel technology can effectively convert methane at near ambient temperature and atmospheric pressure. A methane conversion higher than 40% can be achieved over the SBA-15 catalyst. Unlike the conventional thermos-catalytic process, activated methane can directly convert into the liquid …
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Low-temperature protonation studies of an electron-poor osmium methyl complex, and molecular precursors for the construction of graphene nanostructues with atomically precise edge structures
… (CF3SO2)2NH at –110 °C in CDCl2F yielded the methane coordination complex [(C5Me5)Os(dfmpm)CH4][N(SO2CF3)2]. The analogous 13CH4 complex exhibited a binomial quintet in the 13C NMR with a coupling constant (127 Hz) almost identical to that of free methane (125 Hz). Kinetic analysis revealed …
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Catalytic Light Hydrocarbon Upgrading under Methane Environment
… light hydrocarbon upgrading is explored under methane environment over metal modified zeolites. This novel process not only replaces naturally unavailable hydrogen with methane in the upgrading process, but also converts methane into value added products such as fuels and aromatic chemicals. …