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- W2093794423 abstract "The formation and hydrogen removal of the thick carbonaceous layer accumulated during metathesis of propylene at 880 K on molybdenum and molybdenum oxide model catalysts is examined. It is determined that a hydrocarbon layer several monolayers thick forms rapidly during reaction, and that a portion of this layer may be easily removed by heating the used catalyst in hydrogen. An activation energy of 6.4±0.4 kcal/mol is observed for this process. A graphitic layer also forms slowly on the catalyst surface during reaction, and this layer is difficult to remove by reaction with hydrogen. It is demonstrated that addition of hydrogen to the metathesis reaction mixture reduces the thickness of the carbonaceous layer on the catalyst surface during reaction, thereby enhancing the observed metathesis rate." @default.
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- W2093794423 date "1998-01-01" @default.
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- W2093794423 title "The Effect of Hydrogen on the Carbonaceous Layer Formed on Molybdenum Model Catalysts during High Temperature Propylene Metathesis" @default.
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- W2093794423 doi "https://doi.org/10.1006/jcat.1997.1906" @default.
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