Upgrading Siberian (Russia) crude oil by hydrodesulfurization in a slurry reactor: A kinetic study

doi:10.1016/j.cjche.2020.04.020

中国化学工程学报 ›› 2020, Vol. 28 ›› Issue (12): 3027-3034.DOI: 10.1016/j.cjche.2020.04.020

• Catalysis, Kinetics and Reaction Engineering • 上一篇下一篇

Upgrading Siberian (Russia) crude oil by hydrodesulfurization in a slurry reactor: A kinetic study

Kening Sun, Xixi Ma, Qiuchen Yang, Rui Qiu, Ruijun Hou

Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China

收稿日期:2020-01-11 修回日期:2020-04-17 出版日期:2020-12-28 发布日期:2021-01-11
通讯作者: Ruijun Hou
基金资助:
The work was carried out at Beijing Key Laboratory for Chemical Power Source and Green Catalysis. We thank Analysis & Testing Center at Beijing Institute of Technology for the supports on catalyst characterization.

Upgrading Siberian (Russia) crude oil by hydrodesulfurization in a slurry reactor: A kinetic study

Kening Sun, Xixi Ma, Qiuchen Yang, Rui Qiu, Ruijun Hou

Beijing Key Laboratory for Chemical Power Source and Green Catalysis, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China

Received:2020-01-11 Revised:2020-04-17 Online:2020-12-28 Published:2021-01-11
Contact: Ruijun Hou
Supported by:
The work was carried out at Beijing Key Laboratory for Chemical Power Source and Green Catalysis. We thank Analysis & Testing Center at Beijing Institute of Technology for the supports on catalyst characterization.

摘要/Abstract

摘要： Hydrodesulfurization (HDS) of sour crude oil is an effective way to address the corrosion problems in refineries, and is an economic way to process sour crude oil in an existing refinery built for sweet oil. In the current study, the HDS of Siberian crude oil was carried out in a slurry reactor. The Co-Mo, Ni-Mo, and Ni-W catalysts supported on γ-Al₂O₃ were compared at the temperature of 340℃ and the pressure of 4.5 MPa. The HDS activity follows the order of Co-Mo > Ni-Mo > Ni-W at a high concentration of H₂S, and the difference between Co-Mo and Ni-Mo becomes insignificant at a low concentration of H₂S. The influence of reaction temperature 320-360℃ and reaction pressure 3-5.5 MPa was investigated, and both play a positive role in the HDS reaction. A kinetic model over Ni-Mo/Al₂O₃ in the slurry reactor was established. The activation energy is estimated as 60.34 kJ·mol^-1; the orders of sulfur components and hydrogen partial pressure are 1.43 and 1.30, respectively. The kinetic parameters are compared with those in a trickle-bed reactor, implying that the mass transfer is greatly enhanced in the slurry reactor. The back mixing effect is present in the slurry reactor and can be reduced by a multi-stage design, which would lead to higher reactor efficiency in industrial application.

关键词: HDS, Sour crude oil, Slurry reactor, Kinetics, Multiphase reaction, Russia crude oil

Abstract: Hydrodesulfurization (HDS) of sour crude oil is an effective way to address the corrosion problems in refineries, and is an economic way to process sour crude oil in an existing refinery built for sweet oil. In the current study, the HDS of Siberian crude oil was carried out in a slurry reactor. The Co-Mo, Ni-Mo, and Ni-W catalysts supported on γ-Al₂O₃ were compared at the temperature of 340℃ and the pressure of 4.5 MPa. The HDS activity follows the order of Co-Mo > Ni-Mo > Ni-W at a high concentration of H₂S, and the difference between Co-Mo and Ni-Mo becomes insignificant at a low concentration of H₂S. The influence of reaction temperature 320-360℃ and reaction pressure 3-5.5 MPa was investigated, and both play a positive role in the HDS reaction. A kinetic model over Ni-Mo/Al₂O₃ in the slurry reactor was established. The activation energy is estimated as 60.34 kJ·mol^-1; the orders of sulfur components and hydrogen partial pressure are 1.43 and 1.30, respectively. The kinetic parameters are compared with those in a trickle-bed reactor, implying that the mass transfer is greatly enhanced in the slurry reactor. The back mixing effect is present in the slurry reactor and can be reduced by a multi-stage design, which would lead to higher reactor efficiency in industrial application.

Key words: HDS, Sour crude oil, Slurry reactor, Kinetics, Multiphase reaction, Russia crude oil

Kening Sun, Xixi Ma, Qiuchen Yang, Rui Qiu, Ruijun Hou. Upgrading Siberian (Russia) crude oil by hydrodesulfurization in a slurry reactor: A kinetic study[J]. 中国化学工程学报, 2020, 28(12): 3027-3034.

Kening Sun, Xixi Ma, Qiuchen Yang, Rui Qiu, Ruijun Hou. Upgrading Siberian (Russia) crude oil by hydrodesulfurization in a slurry reactor: A kinetic study[J]. Chinese Journal of Chemical Engineering, 2020, 28(12): 3027-3034.

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Upgrading Siberian (Russia) crude oil by hydrodesulfurization in a slurry reactor: A kinetic study

Upgrading Siberian (Russia) crude oil by hydrodesulfurization in a slurry reactor: A kinetic study

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