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SELECTION OF OPTIMAL CONDITIONS FOR HYDROTREATING OF PYROLYSIS DISTILLATE AND STUDY OF CATALYST EFFECT

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This paper discusses the process of hydrotreating pyrolysis distillate. The study looked at the chemical makeup and physical properties of the pyrolysis distillate, along with the features of the AKM and ANM catalysts. The optimal process parameters for hydrotreating were identified and discussed. As a result of the study, the following optimal conditions for pyrolysis distillate hydrotreating were determined: temperature – 400–420°C, hydrogen pressure – 4 MPa, consumption of hydrogen-containing gas – 200 nm³/m³ of feedstock, with a hydrogen volume fraction of 80%. Elemental analysis of the obtained hydrotreated product was conducted. The shape and makeup of the AKM and ANM catalysts were examined using scanning electron microscopy (SEM). According to the results, the AKM catalyst contains 23.07% Al, 2.2% Co, and 6.25% Mo, while the ANM catalyst contains 31.5% Al, 6.97% Mo, and 3.81% Ni. The effectiveness of the AKM and ANM catalysts was compared, and the AKM catalyst was found to work better: the nitrogen level dropped from 7.4 wt.% to 3.71 wt.%, and the sulfur level fell from 9.24 wt.% to 1.8 wt.%. As a result of hydrotreated product distillation, 58% of the light fraction boiling in the range of 35–130°C was obtained

AUTHORS

A.Xurmamatov

I. Karimov nomidagi Toshkent davlat texnika universiteti Olmaliq filiali

K.Axmedova

O‘zbekiston Respublikasi Fanlar akademiyasi Umumiy va noorganik kimyo instituti

G.Sidiqov

Namangan Davlat Texnika universiteti

O.Rahmonov

I. Karimov nomidagi Toshkent davlat texnika universiteti Olmaliq filiali

Tags

# пиролизный дистиллят# pyrolysis distillate# avtoklav# автоклав# autoclave# установка гидроочистки# алюмо-кобальт-молибденовый катал# алюмо-никель-молибденовый катали# gidrotozalash qurilmasi# piroliz distillyati# alyuminiy-kobalt-molibdenli kata# alyuminiy-nikel-molibdenli katal# hydrotreating unit# alumina-cobalt-molybdenum cataly# alumina-nickel-molybdenum cataly

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References

Ahmedova, K. S., Khurmamatov, A. M., & Sidiqov, G. O. (2024). Results of obtaining pyrolysis distillate-synthetic fuel from used tires. Universum: Tekhnicheskie nauki [Universum: Technical Sciences]. https://7universum.com/ru/tech

ASTM D5291-21. (2021). Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants. https://www.astm.org/d5291-21.html

ASTM D6730-22. (2022). Standard Test Method for Determination of Individual Components in Spark Ignition Engine Fuels by 100-Metre Capillary (with Precolumn) High-Resolution Gas Chromatography. https://www.astm.org/d6730-22.html

ASTM D86-23ae1. (2023). Standard Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric Pressure. https://www.astm.org/d0086-23ae01.html

ASTM E573-01(2021). (2021). Standard Practices for Internal Reflection Spectroscopy. https://store.astm.org/e0573-01r21.html

Budukvaa, S. V., Eletskiia, P. M., Zaikinaa, O. O., Sosnina, G. A., & Yakovlev, V. A. (2019). Petroleum Chemistry, 59(9), 941–955.

Bykova, E. S., Nadeina, K. A., Vatutina, Y. V., Chesalov, Y. A., Pakharukova, V. P., Larina, T. V., Prosvirin, I. P., Gerasimov, E. Y., Klimov, O. V., & Noskov, A. S. (2024). The impact of the water phase in the gasoil fraction on the CoMo hydrotreating catalyst’s performance. Fuel Processing Technology. https://doi.org/10.1016/j.fuel.2024.131229

Ganiyu, S. A., Alhooshani, K., & Ali, S. A. (2017). Single-pot synthesis of Ti-SBA-15-NiMo hydrodesulfurization catalysts: role of calcination temperature on dispersion and activity. Applied Catalysis B: Environmental, 203, 428–441.

Gorak, A., & Olujić, Z. (2014). Distillation: Equipment and Processes. Elsevier. https://doi. org/10.1016/C2010-0-67738-8

Hu, W., Zhang, H., Wang, M., Pu, J., Rogers, K., Wang, H., Ng, S., & Xu, R. (2021). Hydro-upgrading of light cycle oil: Synthesis of NiMo/SiO2-Al2O3-TiO2 porous catalyst. Fuel Processing Technology, 28, 867–874.

Hsu, C. S., & Robinson, P. R. (2024). Cracking and hydrocracking. In Petroleum Science and Technology. Springer. https://doi.org/10.1007/978-3-031-46645-8_4

Khurmamatov, A. M., & Akhmedova, K. S. (2025a). Waste tires based pyrolysis for synthetic fuel and studying its properties. Chemical Papers. https://doi.org/10.1007/s11696-025-04041-4

Khurmamatov, A. M., & Akhmedova, K. S. (2025b). Development of hydrotreatment technology to reduce the amount of sulfur and nitrogen in pyrolysis distillate using the TG- 550 catalyst. Journal of the Indian Chemical Society, 102(5). https://doi.org/10.1016/j. jics.2025.101690

Kulikova, L. A., Maksimova, A. L., & Karakhanov, E. A. (2019). Diesel Fraction Hydrotreating in the Presence of Nickel–Tungsten Sulfide Catalyst Particles In Situ Synthesized in Pores of Aromatic Polymers. Petroleum Chemistry, 59 (Suppl. 1), S66–S71.

Makaryan, I. A., Kostin, A. Y., & Sedov, I. V. (2020). Application of Supercritical Fluid Technologies in Chemical and Petrochemical Industries (Review). Petroleum Chemistry, 60, 244–254. https://doi.org/10.1134/S0965544120030135

Mahmoudabadi, Z. S., Tavasoli, A., Rashidi, A., et al. (2021). Catalytic activity of synthesized 2D MoS2/graphene nanohybrids for the hydrodesulfurization of SRLGO: experimental and DFT study. Environmental Science and Pollution Research, 28, 5978–5990. https://doi.org/10.1007/s11356-020- 10889-8

Peng, C., Guo, R., Feng, X., & Fang, X. (2019). Tailoring the structure of Co-Mo/mesoporous γ-Al2O3 catalysts by adding multi-hydroxyl compound: A 3000 kt/a industrial-scale diesel ultra-deep hydrodesulfurization study. Chemical Engineering Journal. https://doi.org/10.1016/j.cej.2018.08.092

Valavarasu, G., & Ramachandrarao, B. (2021). Recent advances in hydrotreating/ hydrodesulfurization catalysts: Part I: Nature of active phase and support. In K. K. Pant, S. K. Gupta, & E. Ahmad (Eds.), Catalysis for Clean Energy and Environmental Sustainability. Springer, Cham. https:// doi.org/10.1007/978-3-030-65021-6_1