Email this article Low-tonnage methanol production plant with obtaining syngas by partial oxidation of natural gas with oxygen when correcting gas composition for optimal methanol synthesis
- Authors: Zagashvili Y.V.1, Kuzmin A.M.1,2, Efremov V.N.1
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Affiliations:
- LLC «HTR»
- National Research Tomsk Polytechnic University
- Issue: Vol 336, No 3 (2025)
- Pages: 63-73
- Section: Articles
- URL: https://journal-vniispk.ru/2500-1019/article/view/288655
- DOI: https://doi.org/10.18799/24131830/2025/3/4706
- ID: 288655
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Abstract
Relevance. The concept of creating low-tonnage methanol production plants is proposed. They include two main nodes: a synthesis gas production complex by non-catalytic partial oxidation of natural gas with oxygen and a methanol synthesis complex using a direct-flow multi-reactor cascade with the release of condensed methanol after each reactor. The plant can enter a chemical cluster and process methanol into useful products.
Aim. Describe the technology and design the installation, determine its main indicators.
Methods. Design of the plant, mathematical and numerical modeling of chemical and technological processes.
Results and conclusions. The paper describes a new technological process of low-tonnage production for methanols. The main apparatus of the installation is an original small-sized syngas gas generator, which provides: high safety, reliability and maintainability; no need to use a catalyst for partial oxidation and the possibility of carrying out the process at high pressures up to 8.0 MPa, which do not require gas compression during subsequent catalytic synthesis of methanol; transportability and modularity of the installation. The paper introduces the results of numerical simulation of natural gas partial oxidation by oxygen. The authors have determined the rational modes of the process in syngas gas generator. The main parameters of the partial oxidation are: the coefficient of excess oxidizer, which should be in the range of 0.34–0.36, and the supply pressure of the components in the range of 6.0–7.0 MPa. The authors carried out the numerical simulation of the methanol synthesis without correction and with preliminary correction of the syngas composition. The data obtained allowed: calculating the degree of conversion of carbon from carbon oxides to methanol; when using a three-reactor cascade with an optimal composition of the gas mixture, the degree of conversion reaches 95%; estimating the maximum specific capacity of the installation up to 1250 kg/hour of methanol per 1000 m3/hour of natural gas and the maximum capacity of the installation up to 20000 tons of methanol per year.
About the authors
Yuriy V. Zagashvili
LLC «HTR»
Author for correspondence.
Email: y.zagashvili@yandex.ru
Dr. Sc., Professor, Scientific Supervisor
Russian Federation, 17/1, Zarechnaya street, St Petersburg, 194358Aleksey M. Kuzmin
LLC «HTR»; National Research Tomsk Polytechnic University
Email: kuzmin.lex@gmail.com
Cand. Sc., Associate Professor, Deputy Vice-Rector for Educational Activities, Chief Executive Officer
Russian Federation, 17/1, Zarechnaya street, St Petersburg, 194358; 30, Lenin avenue, Tomsk, 634050Vasiliy N. Efremov
LLC «HTR»
Email: vne45@yandex.ru
Cand. Sc., Associate Professor, Chief Technologist
Russian Federation, 17/1, Zarechnaya street, St Petersburg, 194358References
- Bertau M., Offermanns H., Plass L., Schmidt F., Wernicke H.-J. Methanol. The Basic Chemical and Energy Feedstock of the Future. Berlin, Heidelberg, Springer-Verlag, 2014. 661 p. doi: 10.7868/S0028242118020077
- Arutyunov V.S., Golubeva I.A., Eliseev O.L., Zhagfarov F.G. Hydrocarbon Gas Processing Technology. Moscow, Yurait Publ., 2020. 723 p. (In Russ.)
- Kemalov R.A., Kemalov A.F. Technologies for the production and use of methanol. Kazan, Kazan University Publ., 2016. 167 p. (In Russ.)
- Makaryan I.A., Salgansky E.A., Arutyunov V.S., Sedov I.V. Non-catalytic partial oxidation of hydrocarbon gases to syngas and hydrogen: a systematic review. Energies, 2023, vol. 16, no. 2916. DOI: https://doi.org/10.3390/en16062916
- Dahl P.J., Christensen T.S., Winter-Madsen S., KingProven S.M. Autothermal reforming technology for modern large-scale methanol plants. Paris, Nitrogen+Syngas, 2014. 12 p.
- Prodan V.D., Klyushenkova M.I., Borodacheva E.I. Low-tonnage methanol production, Russia. Chemical and Petroleum Engineering, 2013, vol. 49 (7–8), pp. 443–446. doi: 10.1007/s10556-013-9771-z.
- Arutyunov V.S., Nikitin A.V., Strekova L.N. New concept for small-scale GTL. Chemical Engineering Journal, 2015, vol. 282, pp. 206–212. doi: 10.1016/j.cej.2015.02.082.
- Zagashvili Yu.V., Kuzmin A.M., Efremov V.N. Low-tonnage methanol production plant in field conditions. Elektronnyi nauchnyi zhurnal Neftegazovoe delo, 2024, no. 1, pp. 195–237. (In Russ.) DOI: https://dx.doi.org/10.17122/ogbus-2024-1-195-237 .
- Zagashvili Yu.V., Efremov V.N., Kuzmin A.M., Golosman E.Z. Low-tonnage hydrogen production plants with a non-catalytic gas generator for partial oxidation of natural gas. Production, storage and use of hydrogen. New ideas and promising developments. Moscow, RAN, 2023. pp. 43–62. (In Russ.).
- Rozovskii A.Ya., Lin G.I. Theoretical foundations of the methanol synthesis process. Moscow, Khimiya Publ., 1990. 272 p. (In Russ.)
- Methanol synthesis – increasing plant efficiency and lifetime productivity. (In Russ.) Available at: https://www.clariant.com/en/Business-Units/Catalysts/Syngas-Catalysts/Methanol (accessed 8 December 2023).
- Zagashvili Yu.V., Kuzmin A.M. Operations of syngas composition for small methanol production plants. Science and Technology of Hydrocarbons, 2018, no. 3, pp. 54–59. (In Russ.)
- Kuzmin A.M., Barankevich A.A., Zagashvili Yu.V. Complex SG calculations. Computer Program RF, no. 2023610566, 2023. (In Russ.)
- Arutyunov V.S. Oxidative conversion of natural gas. Moscow, Krasand Publ., 2011. 590 p. (In Russ.).
- Lugvishchuk D.S., Kulchakovsky P.I., Mitberg E.B., Mordkovich V.Z. Soot formation in the methane partial oxidation process under conditions of partial saturation with water vapor. Petroleum Chemistry, 2018, vol. 58, no. 5, pp. 427–433. doi: 10.1134/S0965544118050109
- Xu Y., Dai Z., Li C. Numerical simulation of natural gas non-catalytic partial oxidation reformer. Int. J. Hydrogen Energy, 2014, vol. 39, no. 6, pp. 9149–9157. doi: 10.1016/j.ijhydene.2014.03.204
- Brüggemann P., Seifert P., Meyer B., Müller-Hagedorn M. Influence of temperature and pressure on the non-catalytic partial oxidation of natural gas. Chemical Product and Process Modeling, 2010, vol. 5, Iss. 1, Article 1, pp. 1–24. doi: 10.2202/1934-2659.1444
- Ghoneim S.A., El-Salamony R.A., El-Temtamy S.A. Review on innovative catalytic reforming of natural gas to syngas. World Journal of Engineering and Technology, 2016, no. 4, pp. 116–139. doi: 10.4236/wjet.2016.41011
- Guo W., Wu Y., Dong L., Chen C., Wang F. Simulation of non-catalytic partial oxidation and scale-up of natural gas reformer. Fuel Processing Technology, 2012, vol. 1, no. 6, pp. 45–50. DOI: https://doi.org/10.1016/j.fuproc.2012.01.019
- Zagashvili Yu.V., Kuzmin A.M. Influence of hydrogen containing gas composition on methanol yield. Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering, 2020, vol. 331, no. 10, pp. 187–195. (In Russ.) doi: 10.18799/24131830/2020/10/2871.
- Cherepnova A.V., Lender A.A., Krasnyanskaya A.G., Bondareva N.A. Methanol synthesis in a system of flow reactors. Catalysis and petrochemistry, 2000, no. 5–6, pp. 69–74. (In Russ.)
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