Kinetics of dehydrogenation and dehydration of isopropyl alcohol and dehydrogenation of tetralin on dysprosium oxide

Abstract

1. The influence of the heat effect of the reaction is shown from kinetic measurements, and determinations are made of the apparent activation energies of the dehydrogenation and dehydration of isopropyl alcohol and the dehydrogenation of tetralin on Yb2O3 under isothermal conditions. 2. Determinations are made of the relative adsorptive coefficients of the products of the above reactions under isothermal conditions, the values of these coefficients depending on the temperature. Calculations are made of the thermodynamic functions for the adsorptive replacement of isopropyl alcohol and tetralin by the reaction products. 3. The true activation energies are found for dehydrogenation and dehydration of isopropyl alcohol\((\varepsilon _{H_2 true} = 22.9 kcal/M,{\text{ }}\varepsilon _{H_2 O true} = 30.6 kcal/M)\) and dehydrogenation of tetralin (\(\varepsilon ' _{H_2 } = 36.6 kcal/M\)) on ytterbium oxide under isothermal conditions. 4. The kinetic method has been used to find the energies of the bonds formed between the C, H, and O atoms of the reacting molecules and the catalytically active part of the catalyst surface.