Mathematical modelling of hydrotreating of Kazakhstan and west Siberian vacuum gas oil mixtures; Journal of the Brazilian Society of Mechanical Sciences and Engineering; Vol. 47, iss. 2

Mathematical modelling of hydrotreating of Kazakhstan and west Siberian vacuum gas oil mixtures; Journal of the Brazilian Society of Mechanical Sciences and Engineering; Vol. 47, iss. 2

Bibliographic Details
Parent link:Journal of the Brazilian Society of Mechanical Sciences and Engineering.— .— New York: Springer Nature
Vol. 47, iss. 2.— 2025.— Article number 58, 10 p.
Other Authors: Vorobjev A. M. Anatoly Mikhaylovich, Ivashkina E. N. Elena Nikolaevna, Arkenova S. B. Sania Bolatovna, Kaliev T. A. Toleubek Arystanbekovich
Summary:Title screen
A numerical model for practical simulation of hydrotreatment of vacuum gas oil in a trickle-bed reactor is developed. The model is based on the mass balance of species; it incorporates a seven-lump chemical scheme that describes the reactions of hydrodesulphurisation and hydrodearomatisation, the accuracy of calculations using the model is no less than 93.7%. The novelty of the model is splitting of sulphur-containing compounds into different lumps by their reactive abilities. The splitting is supported by the chromatographic analysis of hydrocarbon mixtures that are sampled from the inlet and outlet ends of an industrial hydrotreatment unit. The analysis reveals different susceptibilities of sulphides, benzothiophene, and dibenzothiophenes to hydrotreatment. The new model is applied for simulation of the hydrotreatment at a refinery, adjusting kinetic parameters, and demonstrating that the model provides an adequate (and, at the same time, simple) description of the process, giving guidance for optimisation that is needed after each variation of the feedstock. Using the kinetic model, it is found that an increase in temperature from 330 to 390 °C leads to a decrease in the content of aromatic compounds in hydrotreated vacuum gas oil by 20.75%, and sulphur compounds by 92%. It has been established that an increase in the hydrogen consumption from 50,000 to 90,000 nm3/h leads to a decrease in the sulphur content in the product by 3%. When the feedstock consumption rise from 100 to 150 m3/h, the desulphurization depth decreases by 6.5%
Текстовый файл
Language:English
Published: 2025
Subjects:
Hydrotreating
Hydrodesulphurisation
Hydrodearomatisation
Kinetic model
Vacuum gas oil
электронный ресурс
труды учёных ТПУ
Online Access:https://doi.org/10.1007/s40430-024-05364-1
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=680332

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