Published May 2024, Pg. 42-48

Section: Oil refining and petroleum chemistry

UOT: 547.56.563.364

DOI: 10.37474/0365-8554/2024-05-42-48

Results of research in the field of purification of Naftalan oil fractions with appropriate solvents

V.M. Abbasov Dr. in Ch. Sc. - Institute of Petrochemical Processes

L.I. Alieva Dr. in Tech. Sc. - Institute of Petrochemical Processes

G.A. Isayeva PhD in Ch. Sc. - Institute of Petrochemical Processes

P.A. Movsumova PhD in Tech. Sc. - Institute of Petrochemical Processes

S.S. Süleymanova PhD in Ch. Sc. - Institute of Petrochemical Processes

Oil fraction samples were selected from individual wells of the Naftalan field. The physicochemical, spectral properties and structure of fractions obtained from mixtures of Naftalan oil were determined by using modern methods of analysis.
For purification of Naftalan oil fractions from aromatic and sulfur compounds, an extraction process was carried out with ionic liquids (morpholineformate, diethylamineformate, triethylamineformate, pyridineformate, N-methyl-2-pyrrolidoneformate, piperidineformate, anylinformate), as well as and N-methyl-2-pyrrolidone extractants. 
In the obtaining of therapeutic “White Naftalan” oil from a fraction of Naftalan oil boiling at 200–450 °C, the purification process with ionic liquid morpholineformate in a mass ratio oil fraction: ionic liquid – 1:1, at a temperature of 60 oC, was carried out in 4 stages, with the contact time of 1 hour for each stage. In the purification proces the amount of aromatic hydrocarbons decreased and was 2 %, and the raffinate yield was  72.65 %. was. Thus, according to the results of IR, UV spectral analysis of the morpholineformate ionic liquid can be considered an economically and environmentally effective extractant in the obtaining of  therapeutic “White Naftalan” oil.

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