Kreking distillyatlarini gidrirlash jarayonida Co–Mo/Al2O3 va Ni–Mo/Al2O3 katalizatorlarining gidrodesulfirlash samaradorligi va suyuq fraksiya unumiga ta’siri

Shuxratqodir G‘ulomov; Go‘zal Yusupova; Shaxnoza Shonazarova; Diyora Djulanova; Ra’no Sultonqulova

doi:10.66960/jof.3093-8899.00023

Authors

Shuxratqodir G‘ulomov PhD, dotsent Author https://orcid.org/0000-0002-5793-3018
Go‘zal Yusupova PhD, dotsent Author https://orcid.org/0000-0003-2810-4592
Shaxnoza Shonazarova Author
Diyora Djulanova Author
Ra’no Sultonqulova Author

DOI:

https://doi.org/10.66960/jof.3093-8899.00023

Keywords:

cracking distillate, hydrotreating, hydrodesulfurization, Co–Mo/Al2O3, Ni–Mo/Al2O3, CoMoS, NiMoS, liquid fraction yield, gidrogenlashrocracking, technological efficiency coefficient

Abstract

The article analyzes the effect of i ndustrial hydrotreating catalysts of Co–Mo/Al₂O₃ and Ni–Mo/Al₂O₃ types on hydrodesulfurization efficiency, liquid fraction yield, and the optimal temperature range during the hydrotreating of cracking distillates. Cracking distillates, particularly light cycle oil obtained from the fluid catalytic cracking process, are characterized by high aromaticity and elevated contents of sulfur- and nitrogen-containing heterocyclic compounds. In deep hydrotreating of such feedstocks, the catalyst active sulfide phase, hydrogen pressure, temperature, liquid hourly space velocity, and H₂/feed ratio play a decisive role. The analysis shows that increasing the temperature from 280 °C to 400 °C raises the hydrodesulfurization level from 45.2 % to 99.5 %, while the liquid fraction yield decreases from 98.5 % to 91.2 %. Since evaluating the process solely based on hydrodesulfurization is insufficient, a technological efficiency coefficient expressed as K_eff=η_S×Y_liq/100 is proposed. The calculations indicate that the temperature range of 360–370 °C is optimal in terms of achieving high hydrodesulfurization, maintaining liquid fraction yield, and limiting hydrocracking reactions.

Author Biographies

Shuxratqodir G‘ulomov, PhD, dotsent

Toshkent kimyo-texnologiya instituti, katta ilmiy xodim
Go‘zal Yusupova, PhD, dotsent

Olmaliq davlat texnika instituti
Shaxnoza Shonazarova

Olmaliq davlat texnika instituti, katta o'qituvchi
Diyora Djulanova

Olmaliq davlat texnika instituti, magistr talabasi
Ra’no Sultonqulova

Olmaliq davlat texnika instituti, bakalavr talabasi

References

Kim J., Lee Y.-K. Reactivity of Sulfur and Nitrogen Compounds of FCC Light Cycle Oil in Gidrogenlashrotreating over CoMoS and NiMoS Catalysts // Catalysts. - 2023. - Vol. 13, No. 2. - Article 277. DOI: 10.3390/catal13020277. DOI: https://doi.org/10.3390/catal13020277

Aleksandrov P.V., Reshetnikov S.I., Bukhtiyarova G.A., Noskov A.S. Deep gidrogenlashrodesulfurization of gas oils with high sulfur content: Experiment and kinetic modeling // Chemical Engineering Journal. - 2022. - Vol. 446. - Article 137059. DOI: 10.1016/j.cej.2022.137059. DOI: https://doi.org/10.1016/j.cej.2022.137059

Weng X., Cao L., Zhang G., Chen F., Zhao L., Zhang Y., Gao J., Xu C. Ultradeep Gidrogenlashrodesulfurization of Diesel: Mechanisms, Catalyst Design Strategies, and Challenges // Industrial & Engineering Chemistry Research. - 2020. - Vol. 59, No. 49. - P. 21261-21274. DOI: 10.1021/acs.iecr.0c04049. DOI: https://doi.org/10.1021/acs.iecr.0c04049

Aryee E., Han R., Qu L. et al. Effects of Metal Loadings in Catalyst Formulation on the Gidrogenlashrodesulfurization Performance of NiMo/Al₂O₃ Catalysts // Frontiers in Chemical Engineering. - 2022. - Vol. 3. - Article 764931. DOI: 10.3389/fceng.2021.764931. DOI: https://doi.org/10.3389/fceng.2021.764931

Azizi N., Khodadadi A.A., Mortazavi Y. Gidrogenlashrotreating of light cycle oil over NiMo and CoMo catalysts with different supports // Journal of Industrial and Engineering Chemistry. - 2013. - Vol. 19. - P. 1825-1830. DOI: 10.1016/j.jiec.2013.02.019. DOI: https://doi.org/10.1016/j.jiec.2013.02.019

Liu Z., Gao X., Yao Y. et al. Effects of Ni-Al₂O₃ interaction on NiMo/Al₂O₃ gidrogenlashrodesulfurization catalysts // Journal of Catalysis. - 2020. - Vol. 387. - P. 62-72. DOI: 10.1016/j.jcat.2020.04.008. DOI: https://doi.org/10.1016/j.jcat.2020.04.008

Tuktin B., Saidilda G., Nurzhanova S., Ongarbayev Y. Gidrogenlashroprocessing of Gasoline on Modified Alumina Catalysts // Catalysts. - 2024. - Vol. 14, No. 7. - Article 404. DOI: 10.3390/catal14070404. DOI: https://doi.org/10.3390/catal14070404

Yunusov M.P., Gulomov Sh., Nasullayev K.A., Turdiyeva D.P.K., Isayeva N.F., Abdurakhmanova I.S.K., Murzin D.Y. Gidrogenlashrodesulfurization Catalysts from Aluminium-Containing Waste // Catalysis Letters. - 2024. - Vol. 154. - P. 4409-4421. DOI: 10.1007/s10562-024-04685-z. DOI: https://doi.org/10.1007/s10562-024-04685-z

Zhu J. et al. 3D Printing Technique Fortifies the Ultradeep Gidrogenlashrodesulfurization Process of Diesel: A Journey of NiMo/Al2O3-MMT // Inorganic Chemistry. - 2023. - Vol. 62, No. 49. - P. 20050-20061. DOI: 10.1021/acs.inorgchem.3c02839. DOI: https://doi.org/10.1021/acs.inorgchem.3c02839

Sun H., Chen C., Zhang R., Li Y., Ge S., Cui P. Advances in Gasoline Gidrogenlashrodesulfurization Catalysts: The Role of Structure-Activity Relationships and Machine Learning Approaches // ACS Omega. - 2025. - Vol. 10, No. 29. - P. 31262-31273. DOI: 10.1021/acsomega.5c02980. DOI: https://doi.org/10.1021/acsomega.5c02980

Stanislaus A., Marafi A., Rana M.S. Recent advances in the science and technology of ultra low sulfur diesel production // Catalysis Today. - 2010. - Vol. 153. - P. 1-68. DOI: 10.1016/j.cattod.2010.05.011. DOI: https://doi.org/10.1016/j.cattod.2010.05.011

Topsøe H., Clausen B.S., Massoth F.E. Gidrogenlashrotreating Catalysis: Science and Technology. - Berlin: Springer, 1996. - 310 p. DOI: https://doi.org/10.1007/978-3-642-61040-0_1

Guzal Yusupova, Shuxratqodir Gulomov, Dilorom Mirkhamitova, Sherzod Omonov, Jasurbek Ergashev, Bakhodir Abdullayev. Technology for obtaining effective catalysts for natural gas demercaptanization based on mineral raw materials to save energy// AIP Conferense Proceedings .– 2026. Vol. P. 020044-2 https://doi.org/10.1063/5.0317838 DOI: https://doi.org/10.1063/5.0317838

Sh T G'ulomov, GX Yusupova, M Sh Jumayev. The mechanism of the process of gidrogenlashrotuzation of diesel fuel // Молодёжный вестник Новороссийского филиала Белгородского государственного технологического университета им. ВГ Шухова 3 (3), 62-65, 2023

Sh. T. G'ulomov, G. X. Yusupova, M. Sh. Jumayev. Activation and Restoration of Gidrogenlashration Catalysts – Volume 2 Issue 4, Year 2023. ISSN: 2835-3048. 37 p.