Kinetics of Hydrogen Oxidation#x2014;Part 4. Inhibition and Catalysis at High Degrees of Conversion

摘要

The mechanisms of inhibition and catalysis at high degrees of conversion are analysed. A complete set of isothermal kinetic equations for inhibited hydrogen oxidation is computed. The inhibition efficiency is considered as a function of pressure, temperature, initial composition, and degree of conversion. The regions of no inhibition or of catalysis of hydrogen oxidation in the presence of hydrogen bromide are found. The contributions from regeneration of initial HBr and of the secondary inhibitor Br2are discussed. The parametric dependences of inhibited hydrogen oxidation rates are investigated for a number of elementary rate constants. The potential efficiency of inhibition with bromine compounds is evaluated.