DOI: https://doi.org/10.26089/NumMet.v21r435

Study of a mathematical model of gasoline catalytic reforming by sensitivity analysis methods

Authors

  • L.F. Safiullina
  • K.F. Koledina
  • I.M. Gubaydullin
  • R.Z. Zaynullin

Keywords:

catalytic reforming
mathematical model
chemical kinetics
sensitivity analysis
reduced model

Abstract

A detailed kinetic model is required to study one of the most important oil refining processes known as catalytic reforming. The difficulty arises in connection with a large number of components of the reaction mixture and a large number of stages of chemical transformations in developing the kinetic model. An alternative may be reduced reaction mechanisms that are applicable to solve the problem and provide a realistic description of the process. In this paper, to analyze the kinetic model and to obtain an abbreviated reaction mechanism, the sensitivity analysis methods of the mathematical model are used. The least influential stages of catalytic reforming of gasoline, which do not affect the general dynamics of changes in the concentrations of significant reaction substances are identified using this technique. The effect of eliminating these stages on the kinetics of the process from the chemical point of view is analyzed. A reduced scheme for catalytic reforming of gasoline by excluding these stages is proposed. A reduced scheme provides a quite satisfactory agreement both in temperature profiles and in concentration profiles of significant substances.

New computational technologies

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Published

2020-12-14

Issue

Vol. 21 (2020): Issue 4.

Section

Methods and algorithms of computational mathematics and their applications

Author Biographies

L.F. Safiullina

Bashkir State University,
• Researcher

K.F. Koledina

Institute of Petrochemistry and Catalysis of RAS,
• Researcher;
Ufa State Petroleum Technical University (USPTU),
• Associate Professor

I.M. Gubaydullin

Institute of Petrochemistry and Catalysis of RAS,
• Leading Researcher;
Ufa State Petroleum Technical University (USPTU),
• Professor

R.Z. Zaynullin

Ufa State Petroleum Technical University (USPTU),
Department of Oil and Gas Technology,
• Assistant

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