Calculating the True and Observed Rates of Complex Heterogeneous Catalytic Reactions
- Authors: Avetisov A.K.1, Zyskin A.G.1
-
Affiliations:
- Karpov Institute of Physical Chemistry
- Issue: Vol 92, No 6 (2018)
- Pages: 1107-1114
- Section: To the 100Th Anniversary of the Karpov Institute of Physical Chemistry
- URL: https://journals.rcsi.science/0036-0244/article/view/170025
- DOI: https://doi.org/10.1134/S003602441806002X
- ID: 170025
Cite item
Abstract
Equations of the theory of steady-state complex reactions are considered in matrix form. A set of stage stationarity equations is given, and an algorithm is described for deriving the canonic set of stationarity equations with appropriate corrections for the existence of fast stages in a mechanism. A formula for calculating the number of key compounds is presented. The applicability of the Gibbs rule to estimating the number of independent compounds in a complex reaction is analyzed. Some matrix equations relating the rates of dependent and key substances are derived. They are used as a basis to determine the general diffusion stoichiometry relationships between temperature, the concentrations of dependent reaction participants, and the concentrations of key reaction participants in a catalyst grain. An algorithm is described for calculating heat and mass transfer in a catalyst grain with respect to arbitrary complex heterogeneous catalytic reactions.
About the authors
A. K. Avetisov
Karpov Institute of Physical Chemistry
Email: zyskin@nifhi.ru
Russian Federation, Moscow, 103064
A. G. Zyskin
Karpov Institute of Physical Chemistry
Author for correspondence.
Email: zyskin@nifhi.ru
Russian Federation, Moscow, 103064