High-value utilization of H2-containing gas in low-rank oil catalytic hydroupgrading

Mengjuan Zhang, Hao Guan, Chao Wang, Peng Zheng, Zhennan Han, Kangjun Wang, Zhanguo Zhang, Jianxi Wang, Yuan Lu, Abuliti Abudula, Guoqing Guan and Guangwen Xu

Applied Energy, 2024, vol. 371, issue C, No S030626192400970X

Abstract: Simulated H2-rich reactant gases containing one or more impurity gases, (CO, CO2, and CH4) were used as the hydrogen source to investigate the performance of Ni-Mo/TiO2-Al2O3 catalyst for the hydrodesulfurization (HDS) of shale oil. The simulated gas (45% H2, 20% CO, 20% CO2, and 15% CH4) was on-line synthesized under the optimal conditions of a reaction temperature of 380 °C, a pressure of 4.0 MPa, a gas/oil (v/v) ratio of 600: 1, and an LHSV of 4.0 h−1. The sulfur content in the upgraded shale oil reached a steady-state value of about 4300 ppm, which met the requirement of national standard marine fuel oil (GB17411–2015, China) that requires <0.5 wt% in sulfur content. Meanwhile, the outlet gas showed a higher heating value than the inlet gas, which had almost no effect on its use as a fuel gas. This work provides a novel idea for the high-value utilization of H2-rich industrial vents and a fresh approach for reducing the costs of hydrogen supply during low-rank oil upgrading.

Keywords: Hydrodesulfurization; H2-rich reactant gas; Ni-Mo/TiO2-Al2O3 catalyst; Low-rank oil; Low-cost hydrogen source (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.apenergy.2024.123587

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