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Production of 1,3-Butadiene From C4 Raffinate-3 Through Oxidative Dehydrogenation of n-Butene Over Bismuth Molybdate Catalysts

“…The above result strongly supports that oxygen mobility played a key role in determining the catalytic performance of c-Bi 2 MoO 6 catalyst in the oxidative dehydrogenation of n-butene. It has been reported that a mixed catalyst composed of a-Bi 2 Mo 3 O 12 and c-Bi 2 MoO 6 showed a synergistic effect in several selective oxidation reactions [47][48][49][50]. Several plausible mechanisms have also been proposed to explain the synergistic effect of a-Bi 2 Mo 3 O 12 and c-Bi 2 MoO 6 catalysts [47,48].…”

“…It has been reported that a mixed catalyst composed of a-Bi 2 Mo 3 O 12 and c-Bi 2 MoO 6 showed a synergistic effect in several selective oxidation reactions [47][48][49][50]. Several plausible mechanisms have also been proposed to explain the synergistic effect of a-Bi 2 Mo 3 O 12 and c-Bi 2 MoO 6 catalysts [47,48]. In the partial oxidation of propylene, the synergistic effect of these two catalysts was explained by a remote control mechanism, in which oxygen species formed on c-Bi 2 MoO 6 migrate onto the surface of a-Bi 2 Mo 3 O 12 to create active sites [49].…”

Partial Oxidation in the Integral Reactor: Possibilities of a Mathematical Description

“…Its quantitative description after curve fitting leads to a limited number of kinetic parameters which may be used further to characterize the performance of different catalysts under various working conditions. For that purpose the kinetic parameters themselves or derived quantities may be used [9]. The use of model parameters on such comparisons of catalytic qualities is based on two requirements: l they must be derived from calculations using the same model l the model has to describe the experimental values with equal precision in each case.…”

A synergistic effect of α-Bi2Mo3O12 and γ-Bi2MoO6 catalysts in the oxidative dehydrogenation of C4 raffinate-3 to 1,3-butadiene

“…It was reported that a mixed catalyst composed of ␣-Bi 2 Mo 3 O 12 and ␥-Bi 2 MoO 6 showed a synergistic effect in several selective oxidation reactions [13][14][15][16]. It was proposed that the synergistic effect of these two catalysts in the oxidative dehydrogenation of 1-butene was attributed to the formation of a crystal phase similar to ␤-Bi 2 Mo 2 O 9 [13].…”

“…In the partial oxidation of propylene, the synergistic effect of these two catalysts was explained by a remote control mechanism, in which oxygen species formed on the ␥-Bi 2 MoO 6 migrate onto the surface of the ␣-Bi 2 Mo 3 O 12 to create active sites. Several plausible mechanisms have also been proposed to explain the synergistic effect of ␣-Bi 2 Mo 3 O 12 and ␥-Bi 2 MoO 6 catalysts [15,16].…”