ChemInform Abstract: Some Problems of Chemical Kinetics in Heterogeneous Hydrogenation Catalysis

A study on the properties of modified CuO samples and the kinetics of carbon monoxide oxidation over the given catalysts

“…But on CuCeAl sample, the concave slope of conversion curves indicates that the reaction is inhibited at least by one of its products [21]. In fact, the dependence of 1/r versus P CO 2 for CuCeAl catalyst is linear (Figure 6), that means P CO 2 must appear in the denominator of kinetic equation with the unit of power.…”

Dialkylbenzene hydrogenation: Kinetic analysis of rollover mechanism

“…A spanning tree is a sequence of edges going through all the vertices of the initial graph and it suffices to add at least one edge to the spanning tree to obtain a circle [14]. Spanning tree weights can be obtained by multiplication of consecutive edges and summation of parallel ones [14,15]. Following this procedure [14,15], we arrive at the following equations for the mechanism, presented in Fig.…”

“…Spanning tree weights can be obtained by multiplication of consecutive edges and summation of parallel ones [14,15]. Following this procedure [14,15], we arrive at the following equations for the mechanism, presented in Fig. 2b : …”

“…The mechanistic concept m consideration can also be analyzed by the graph theory [12][13][14][15]. The vertices of the graph are presented as circles and correspond to intermediates.…”

Chapter 2 The Development of Basic Concepts of Chemical Kinetics in Heterogeneous Catalysis

“…А theory for the adsorption and catalytic processes оп inhomogeneous surfaces was suggested Ьу Roginskii [60]. The present-day state of the problem and, which is most important, the experience accumulated in the use of kinetic models accounting for the biographical inhomogeneity had been reported Ьу Snagovskii and Ostrovskii [37] and Ьу Кiperman [42,61]. Deviations from the surface-action law in the аЬоуе models are primarily observed Ьу the fact that kinetic equations are powers with fractional exponents that remain unchanged over а wide range of the parameters.…”