Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experiments
The main idea of the investigation was to define testing parameters with the lowest influence of internal and external diffusion on catalytic activity in hydrodesulfurization of dibenzothiophene. Traditional experimental methods were used to determine the conditions for the influence of internal and...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Uralʹskij federalʹnyj universitet imeni pervogo Prezidenta Rossii B.N. Elʹcina
2023-04-01
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| Series: | Chimica Techno Acta |
| Subjects: | |
| Online Access: | https://journals.urfu.ru/index.php/chimtech/article/view/6670 |
| _version_ | 1797777963707531264 |
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| author | Polina P. Mukhacheva Yuliya V. Vatutina Ivan A. Mik Ksenia A. Nadeina Maxim O. Kazakov Oleg P. Klenov Oleg V. Klimov Aleksandr S. Noskov |
| author_facet | Polina P. Mukhacheva Yuliya V. Vatutina Ivan A. Mik Ksenia A. Nadeina Maxim O. Kazakov Oleg P. Klenov Oleg V. Klimov Aleksandr S. Noskov |
| author_sort | Polina P. Mukhacheva |
| collection | DOAJ |
| description | The main idea of the investigation was to define testing parameters with the lowest influence of internal and external diffusion on catalytic activity in hydrodesulfurization of dibenzothiophene. Traditional experimental methods were used to determine the conditions for the influence of internal and external diffusion. Simultaneous change of a linear feedstock rate and a catalyst loading at constant weight hour space velocity were used to determine the process temperature (240–260 °C) at which the impact of external diffusion is minimal. Catalytic tests, including the variation of the catalyst fraction size, were carried out to define the conditions with the lowest influence of internal diffusion. It was found that when the catalyst with the fraction size of 0.1–0.25 mm was used, the fluctuation of sulfur conversion was the smallest. Besides, to validate experimental results, the calculations were performed with mass balance equations and expressions used for HDS modeling. The resulting data and catalytic experiments demonstrated that the lowest influence of internal and external diffusion is achieved at a temperature process less than 260 °C and a catalyst fraction of 0.1–0.25 mm. |
| first_indexed | 2024-03-12T23:10:32Z |
| format | Article |
| id | doaj.art-689ec3a810d3412e81f43ab53a9f4255 |
| institution | Directory Open Access Journal |
| issn | 2411-1414 |
| language | English |
| last_indexed | 2024-03-12T23:10:32Z |
| publishDate | 2023-04-01 |
| publisher | Uralʹskij federalʹnyj universitet imeni pervogo Prezidenta Rossii B.N. Elʹcina |
| record_format | Article |
| series | Chimica Techno Acta |
| spelling | doaj.art-689ec3a810d3412e81f43ab53a9f42552023-07-18T05:01:44ZengUralʹskij federalʹnyj universitet imeni pervogo Prezidenta Rossii B.N. ElʹcinaChimica Techno Acta2411-14142023-04-0110210.15826/chimtech.2023.10.2.084881Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experimentsPolina P. Mukhacheva0Yuliya V. Vatutina1Ivan A. Mik2Ksenia A. Nadeina3Maxim O. Kazakov4Oleg P. Klenov5Oleg V. Klimov6Aleksandr S. Noskov7Boreskov Institute of Catalysis SB RASBoreskov Institute of Catalysis SB RASBoreskov Institute of Catalysis SB RASBoreskov Institute of Catalysis SB RASBoreskov Institute of Catalysis SB RASBoreskov Institute of Catalysis SB RASBoreskov Institute of Catalysis SB RASBoreskov Institute of Catalysis SB RASThe main idea of the investigation was to define testing parameters with the lowest influence of internal and external diffusion on catalytic activity in hydrodesulfurization of dibenzothiophene. Traditional experimental methods were used to determine the conditions for the influence of internal and external diffusion. Simultaneous change of a linear feedstock rate and a catalyst loading at constant weight hour space velocity were used to determine the process temperature (240–260 °C) at which the impact of external diffusion is minimal. Catalytic tests, including the variation of the catalyst fraction size, were carried out to define the conditions with the lowest influence of internal diffusion. It was found that when the catalyst with the fraction size of 0.1–0.25 mm was used, the fluctuation of sulfur conversion was the smallest. Besides, to validate experimental results, the calculations were performed with mass balance equations and expressions used for HDS modeling. The resulting data and catalytic experiments demonstrated that the lowest influence of internal and external diffusion is achieved at a temperature process less than 260 °C and a catalyst fraction of 0.1–0.25 mm.https://journals.urfu.ru/index.php/chimtech/article/view/6670diffusion limitationkinetic regionhydrodesulfurizationdibenzothiophenecomo hds catalysts |
| spellingShingle | Polina P. Mukhacheva Yuliya V. Vatutina Ivan A. Mik Ksenia A. Nadeina Maxim O. Kazakov Oleg P. Klenov Oleg V. Klimov Aleksandr S. Noskov Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experiments Chimica Techno Acta diffusion limitation kinetic region hydrodesulfurization dibenzothiophene como hds catalysts |
| title | Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experiments |
| title_full | Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experiments |
| title_fullStr | Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experiments |
| title_full_unstemmed | Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experiments |
| title_short | Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experiments |
| title_sort | testing conditions for como hds catalyst in the kinetic region integrated approach using the math calculations and catalytic experiments |
| topic | diffusion limitation kinetic region hydrodesulfurization dibenzothiophene como hds catalysts |
| url | https://journals.urfu.ru/index.php/chimtech/article/view/6670 |
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