A Study on the Process Conditions of Removing Basic Nitrogen Compounds from Gasoline

Abstract The methods of hydrochloric acid extraction, liquid–solid adsorption, and complexation were used to remove basic nitrogen compounds from gasoline, and the efficiencies of three removal methods were studied. The experimental results show that the optimum range of the concentration of hydrochloric acid is 0.05 ∼ 1.0 mol L−1, and the optimum extraction time is 20 min for hydrochloric acid extraction method. The efficiency of removal of basic nitrogen compounds reaches its top when the ratio of liquid to solid is controlled at 5:1, and that the optimum range of concentration of complexing agent is 15 ∼ 20 wt% for complexation. Under the conditions mentioned above, all the removal yields of basic nitrogen of these three present methods can exceed 90%.