Mathematical analysis of physicochemical phenomena in the catalyst during hydrogenating depolymerization of coal extract benzene insoluble fraction

Jerzy Szczygie?; Marek Stolarski

doi:10.1016/j.cjche.2014.08.008

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Mathematical analysis of physicochemical phenomena in the catalyst during hydrogenating depolymerization of coal extract benzene insoluble fraction

催化、动力学与反应工程 | Updated：2026-01-06

- Mathematical analysis of physicochemical phenomena in the catalyst during hydrogenating depolymerization of coal extract benzene insoluble fraction
- Chinese Journal of Chemical Engineering Issue 6, Pages: 962-973(2015)
- Affiliations：
  
  Department of Chemistry, Wroclaw University of Technology, ul. Gdańska 7/9,Poland
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2014.08.008
  CLC：
- Published：2015
- Accepted：
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Jerzy Szczygie?, Marek Stolarski. Mathematical analysis of physicochemical phenomena in the catalyst during hydrogenating depolymerization of coal extract benzene insoluble fraction[J]. Chinese Journal of Chemical Engineering, 2015, (6): 962-973.
DOI：

Jerzy Szczygie?, Marek Stolarski. Mathematical analysis of physicochemical phenomena in the catalyst during hydrogenating depolymerization of coal extract benzene insoluble fraction[J]. Chinese Journal of Chemical Engineering, 2015, (6): 962-973. DOI： 10.1016/j.cjche.2014.08.008.

摘要

Efficiency and selectivity of hydrogenating depolymerization of the coal extract benzene-insoluble part over the heterogeneous Co–Mo/Al

catalystwere assessed us

ing a mathematical model. The analytical equations of the mathematical modelwere generated based onmaterial balance incorporating the physico-chemical phenomena (reaction and diffusion) both in the autoclave and the catalyst grain. The equations offer the possibility for predicting changes of the reactants in the autoclave during the process and for determining the distribution of reactant concentrations in the grain as a function of its radius. The analytical equations of the model serve as the basis of the algorithm for assessing the influence of restrictive diffusion on the effectiveness and selectivity of the catalyst

and also for defining the optimal radii of the catalyst's pores to enable free transport of reactants in the grain interior.

Abstract

Efficiency and selectivity of hydrogenating depolymerization of the coal extract benzene-insoluble part over the heterogeneous Co-Mo/Al

catalystwere assessed using a mathematical model. The analytical equations of the mathematical modelwere generated based onmaterial balance incorporating the physico-chemical phenomena (reaction and diffusion) both in the autoclave and the catalyst grain. The equations offer the possibility for predicting changes of the reactants in the autoclave during the process and for determining the distribution of reactant concentrations in the grain as a function of its radius. The analytical equations of the model serve as the basis of the algorithm for assessing the influence of restrictive diffusion on the effectiveness and selectivity of the catalyst

and also for defining the optimal radii of the catalyst's pores to enable free transport of reactants in the grain interior.

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