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

• DOI: 10.4028/www.scientific.net/amr.798-799.45
• Publication Date: 2013-09-11T14:45:24Z
• Authors: Xun Tang; Shu Yuan Li; Chang Tao Yue; Ji Lai He; Ji Li Hou
• Keywords: 13. Climate action; 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology; 6. Clean water

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).