Carbon dioxide reforming with methane to synthesis gas has been investigated in terms of the effects of active metal loading, feed ratio, and reaction temperature on catalyst activity and stability employing supported Ni, Co, and Fe catalysts.
Nickel-alumina catalysts supported on cordierite monoliths of honeycomb structure surpass essentially the conventional granulated ones with respect to the output in carbon dioxide reforming of methane.
Carbon dioxide reforming of methane to synthesis gas was studied by employing a Ni/La 2 O 3 catalyst as well as conventional nickel-based catalysts, i.e., Ni/Î³-Al 2 O 3, Ni/CaO/Î³-Al 2 O 3, and Ni/CaO.
Nickel is an ideal candidate due to its high initial catalytic activity, inherent availability and low cost. However, nickel based catalysts was more inclined to suffer from serious carbon deposition and thermal sintering of the active centers, finally causing the deactivation of catalysts and plugging of the reactor.
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01-01-2008· The saturation of carbon deposition with increased nickel loadings over the Ni/CZO/monolith catalysts may be related to the fact that both the ceriumâ€“zirconium oxide support and the supported nickel show activity for hydrocarbon oxidation, with large changes in nickel surface area resulting in only small changes in the overall active surface area of the catalyst which includes both â€¦
The catalytic partial oxidation of methane on Niâˆ’MgO solid solutions supported on metal foams has been studied at temperatures from 600 to 800 °C, 1 atm, 3000âˆ’19 000 mL/gâˆ’h, CH4/O2 = 2/1. The catalysts were prepared in two ways: (a) oxidized foams were dipped directly into a citrate/ethylene glycol solution containing nitrate precursors and (b) oxidized foams were primed with a bohemite primer and â€¦