Geology, geography and global energy

Scientific and Technical Journal

Determination of the efficiency of using imidazolium solt for extraction of organosulfur compounds

2014. №3, pp. 18-20

Abdulaeva Vasilya F. - Undergraduate, Astrakhan State Technical University, 16 Tatishchev st., Astrakhan, 414056, Russian Federation,

Okhlobystina Aleksandra V. - C.Sc. in Chemistry Younger Research Assistant, Astrakhan State Technical University, 16 Tatishchev st., Astrakhan, 414056, Russian Federation

Liquid-liquid extraction is an alternative method desulphurization of motor fuels. In recent times different ionic liquids used as extractants. This is due to their selectivity to sulfur-containing compounds and low vapor pressure. We have studied the selectivity 1-butyl-3-methylimidazole of hexafluorophosphate in the extraction process with respect to different classes of organic compounds of sulfur contained in light distillates. N-heptane was used as a model of motor fuel. In this work we examined the effect of contact time, temperature and the mass ratio of model fuel to feed for the extraction. The content of organic sulfur compounds in model fuel before and after extraction was determined using energy dispersive X-ray fluorescence spectrometry method in accordance with ASTM D 4294-98.

Key words: ионные жидкости, жидкостно-жидкостная экстракция, сероочистка, десульфуризация, меркаптаны, дисульфиды, имидазолиевые соли, рентгенофлуоресцентная спектроскопия, зеленая химия, селективность, ionic liquids, liquid-liquid extraction, desulphurization, merc