Hydrodenitrogenation of Basic and Non-Basic Nitrogen Compounds in Shale Oil over NiW/Al₂O₃ Catalyst

Abstract:

The hydrodenitrogenation (HDN) of Longkou shale oil were carried out in microscale trick-bed reactor over a commercial NiW/Al₂O₃ catalyst with high HDN activity. The effects of temperature, pressure, liquid hourly space velocity (LHSV) and hydrogen/oil ratio on the conversions of total, basic and non-basic nitrogen compounds were investigated at various conditions (340-420°C, 0.2-2h^-1, 4-9MPa and 400-1000 L/L). The results show that basic nitrogen compounds have higher HDN reactivity than non-basic nitrogen. The distributions and species of nitrogen compounds in Longkou shale oil were also investigated. About 33% of total nitrogen is present in big molecules with high boiling point. The nitrogen compounds in Longkou shale oil are mainly composed by seven kinds of components ( nitriles, anilines, pyridines, quinolines, acridines, carbazoles and indoles).

• Periodical: Advanced Materials Research (Volumes 798-799)
• Pages: 45-48
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.798-799.45
• Online since: September 2013
• Authors: Xun Tang, Shu Yuan Li, Chang Tao Yue, Ji Lai He, Ji Li Hou
• Keywords: Basic Nitrogen Compounds, Hydrodenitrogenation, Nitrogen Species, Non-Basic Nitrogen Compounds, Shale Oil

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