Upgrading Siberian (Russia) crude oil by hydrodesulfurization: Kinetic parameter estimation in a trickle-bed reactor

doi:10.1016/j.cjche.2020.07.021

中国化学工程学报 ›› 2021, Vol. 29 ›› Issue (1): 212-220.DOI: 10.1016/j.cjche.2020.07.021

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

Upgrading Siberian (Russia) crude oil by hydrodesulfurization: Kinetic parameter estimation in a trickle-bed reactor

Kening Sun, Xixi Ma, 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:2020-06-30 出版日期:2021-01-28 发布日期:2021-04-02
通讯作者: Ruijun Hou
基金资助:
TheworkwascarriedoutatBeijingKeyLaboratoryforChemicalPower 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: Kinetic parameter estimation in a trickle-bed reactor

Kening Sun, Xixi Ma, 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:2020-06-30 Online:2021-01-28 Published:2021-04-02
Contact: Ruijun Hou
Supported by:
TheworkwascarriedoutatBeijingKeyLaboratoryforChemicalPower 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. Siberian crude oil transported through the Russia-China pipeline could be greatly sweetened and could be refined directly in local refinery designed for Daqing crude oil after the effective HDS treatment. In this study, the HDS of Siberian crude oil was carried out in a continuous flow isothermal trickle-bed reactor over Ni-Mo/γ-Al₂O₃. The effects of temperature, pressure and LHSV were investigated in the ranges of 320-360 ℃, 3-5 MPa and 0.5-2 h^-1, keeping constant hydrogen to oil ratio at 600 L·L^-1. The HDS conversion could be up to 92.89% at the temperature of 360 ℃, pressure of 5 MPa, and LHSV of 0.5 h^-1, which is sufficient for local refineries (> 84%). A three phase heterogeneous model was established to analyze the performance of the trickle-bed reactor based on the two-film theory using Langmuir-Hinshelwood mechanism. The order of sulfur component is estimated as 1.28, and the order of hydrogen is 0.39. By simulating the reactor using the established model, the concentration of H₂, H₂S and sulfur along the catalyst bed is discussed. The model is significantly useful for industrial application with respect to reactor analysis, optimization and reactor design, and can provide further insight of the HDS of Siberian crude oil.

关键词: HDS, Trickle-bed reactor, Heterogeneous model, Kinetics, Siberian 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. Siberian crude oil transported through the Russia-China pipeline could be greatly sweetened and could be refined directly in local refinery designed for Daqing crude oil after the effective HDS treatment. In this study, the HDS of Siberian crude oil was carried out in a continuous flow isothermal trickle-bed reactor over Ni-Mo/γ-Al₂O₃. The effects of temperature, pressure and LHSV were investigated in the ranges of 320-360 ℃, 3-5 MPa and 0.5-2 h^-1, keeping constant hydrogen to oil ratio at 600 L·L^-1. The HDS conversion could be up to 92.89% at the temperature of 360 ℃, pressure of 5 MPa, and LHSV of 0.5 h^-1, which is sufficient for local refineries (> 84%). A three phase heterogeneous model was established to analyze the performance of the trickle-bed reactor based on the two-film theory using Langmuir-Hinshelwood mechanism. The order of sulfur component is estimated as 1.28, and the order of hydrogen is 0.39. By simulating the reactor using the established model, the concentration of H₂, H₂S and sulfur along the catalyst bed is discussed. The model is significantly useful for industrial application with respect to reactor analysis, optimization and reactor design, and can provide further insight of the HDS of Siberian crude oil.

Key words: HDS, Trickle-bed reactor, Heterogeneous model, Kinetics, Siberian crude oil

Kening Sun, Xixi Ma, Ruijun Hou. Upgrading Siberian (Russia) crude oil by hydrodesulfurization: Kinetic parameter estimation in a trickle-bed reactor[J]. 中国化学工程学报, 2021, 29(1): 212-220.

Kening Sun, Xixi Ma, Ruijun Hou. Upgrading Siberian (Russia) crude oil by hydrodesulfurization: Kinetic parameter estimation in a trickle-bed reactor[J]. Chinese Journal of Chemical Engineering, 2021, 29(1): 212-220.

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Upgrading Siberian (Russia) crude oil by hydrodesulfurization: Kinetic parameter estimation in a trickle-bed reactor

Upgrading Siberian (Russia) crude oil by hydrodesulfurization: Kinetic parameter estimation in a trickle-bed reactor

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