A generalized kinetic model for the partial oxidation of n-butane to maleic anhydride under aerobic and anaerobic conditions

Modeling of fluidized bed reactors with two reaction zones

“…The kinetics of butane partial oxidation to maleic anhydride over a VPO catalyst has recently been studied in detail. 17 The proposed model (Figure 2b) assumes the presence of adsorbed oxygen in the catalyst and catalyst's oxygen (surface and subsurface). Adsorbed oxygen reacts with n-butane to produce COx and maleic anhydride.…”

“…Two reactions not considered in the previous simulation studies have been chosen, propane dehydrogenation as representative of a catalytic dehydrogenation and n-butane oxidation to maleic anhydride as representative of a partial oxidation, in order to generalize the behavior of the reactors independent of the reaction carried out inside them. Using for both cases the same fluid-dynamic model and kinetic models previously developed by our group for each reaction, 16,17 the experimental data obtained in our bench scale plant for the catalytic dehydrogenation of propane over a Cr 2 O 3 /Al 2 O 3 catalyst 1 and the n-butane partial oxidation over a commercial VPO catalyst 2 have been simulated.…”

Performance of a Catalytic Gas–Solid Fluidized Bed Reactor in the Presence of Interparticle Forces

“…The kinetics of this reaction has been the subject of many investigations [47][48][49][50][51][52][53][54][55][56][57][58]. A particular kinetic model for this reaction system is the widely cited work of Centi et al [48] in which the authors developed the model from the empirical data Table 2: General mass balance and mass transfer equations.…”

Partial oxidation (POX) processes and technology for clean fuel and chemical production

“…The process using n -butane as the starting molecule is, however, nowadays the only industrially used reaction for maleic anhydride production (Fernández et al , 2010;Chen et al , 2007;Gascón et al , 2006;Ivars et al , 2010;Ozkan et al , 1997). Gascón et al (2006) have proposed a reaction mechanism for the partial oxidation of n -butane to maleic anhydride (MA). The proposed mechanism is divided into nine reactions steps showing the complicated nature of the partial oxidation reaction: The fi rst three mechanistic steps are the reactions between the active surface of the catalyst and oxygen.…”