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Effect of CO2 content in synthesis gas on combined synthesis and hydrofining of hydrocarbons on Сo/SiO2+ZSM-5+Al2O3 catalyst
https://doi.org/10.18412/1816-0387-2025-4-11-18
Abstract
The paper studies the effect of CO2 content in synthesis gas on the process of combined synthesis and hydroconversion of hydrocarbons on a bifunctional Сo/SiO2+ZSM-5+Al2O3 catalyst. The studies were performed in the range of CO2 content from 0 to 60 vol. % at temperatures of 240 and 250 °C, pressure of 2.0 MPa and GHSV of 1000 h-1. It was shown that partial conversion of CO2 into synthetic hydrocarbons is possible on the bifunctional cobalt catalyst. Processing of carbon dioxide added to synthesis gas occurs in the range of CO2 concentrations of 20-40 vol. %. The maximum degree of CO2 conversion was 5.3 % at 240 °C and 20 vol. % CO2 in gas. It has been established that the addition of CO2 to synthesis gas leads to an increase in selectivity for C5+ hydrocarbons and the amount of isomeric hydrocarbons in the synthesis products, which contribute to the improvement of the characteristics of motor fuel, the octane number of the gasoline fraction and the pour point of the diesel fraction.
About the Authors
G. B. Narochny
Federal State Budget Educational Institution of Higher Education "Platov South-Russian State Polytechnic University (NPI), Novocherkassk
Russian Federation
Russian Federation
I. N. Zubkov
Federal State Budget Educational Institution of Higher Education "Platov South-Russian State Polytechnic University (NPI), Novocherkassk
Russian Federation
Russian Federation
O. P. Papeta
Federal State Budget Educational Institution of Higher Education "Platov South-Russian State Polytechnic University (NPI), Novocherkassk
Russian Federation
Russian Federation
E. A. Bozhenko
Federal State Budget Educational Institution of Higher Education "Platov South-Russian State Polytechnic University (NPI), Novocherkassk
Russian Federation
Russian Federation
A. P. Savost'yanov
Federal State Budget Educational Institution of Higher Education "Platov South-Russian State Polytechnic University (NPI), Novocherkassk
Russian Federation
Russian Federation
R. E. Yakovenko
Federal State Budget Educational Institution of Higher Education "Platov South-Russian State Polytechnic University (NPI), Novocherkassk
Russian Federation
Russian Federation
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Review
For citations:
Narochny G.B., Zubkov I.N., Papeta O.P., Bozhenko E.A., Savost'yanov A.P., Yakovenko R.E. Effect of CO2 content in synthesis gas on combined synthesis and hydrofining of hydrocarbons on Сo/SiO2+ZSM-5+Al2O3 catalyst. Kataliz v promyshlennosti. 2025;25(4):11-18. (In Russ.) https://doi.org/10.18412/1816-0387-2025-4-11-18
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