Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia

Advanced Search

Chemistry for Sustainable Development

2017 year, number 4

Analysis of the Efficiency of Catalysts for Isomerisation of Light Gasoline Fractions by the Mathematical Modelling Method

1National Research Tomsk Polytechnic University, Tomsk, Russia
2KINEF Ltd., Kirishi, Russia
Keywords: isomerisation, catalyst, mathematical modelling, activity
Pages: 415-421


An increase in the octane number of straight-run fractions of normal hydrocarbons С5–С6 up to 92 points by research octane number (RON) through their catalytic isomerisation appears to be an effective solution of the critical applied task of changing the structure of the domestic gasoline pool. Isomerisates have a high octane number and do not contain hazardous sulphur compounds, aromatic hydrocarbons and particularly, benzene. Herewith, selection of the optimum technology for isomerisation of light gasoline fractions considering a peculiarity of a specific refinery is an important scientific and technical issue. Additionally, a number of complex multiple-factor tasks, such as ensuring of a specified quality and quantity of raw materials, maintaining the optimum activity of the used catalysts, and also providing the optimum operation modes for each complex block considering energy and resource efficiency in manufacturing might arise. To describe nonstationary catalytic processes of catalytic processing of light alkanes the mathematical modelling method is used. This paper assesses the operating efficiency of catalysts for isomerisation of light gasoline fractions based on Pt/SO42–/ZrO2 and Pt/Cl/Al2O3 using the mathematical modelling method for nonstationary catalytic processing of hydrocarbon raw materials. Catalysts based on sulphated zirconium oxide retain high activities and stabilities during the entire operating cycle, while catalytic systems based on chlorinated alumina are deactivated faster. Isomerisation process scheme with the recycle of unreacted C5 and C6 hydrocarbons involves significant capital and operating costs, however, its use will allow increasing the RON of isomerisates in 10–12 points.

DOI: 10.15372/CSD20170412