COMPARATIVE ANALYSIS OF EXTRACTIVE CAPACITY SOLVENTS FOR CLEANING AROMATIC OILS FROM POLYCYCLIC AROMATIC HYDROCARBONS

UDC 66.061

  • Grushova Evgeniya Ivanovna – – DSc (Engineering), Professor, the Department of Oil and Gas Processing and Petroleum Chemistry. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: grushova.e@mail.ru

  • Zholnerkevich Veronika Igorevna – graduate. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: zholnerkevichv@mail.ru

DOI: https://doi.org/10.52065/2520-2669-2021-247-2-133-137

Key words: aromatic oil, liquid extraction, dimethyl sulfoxide, mixture of N-methylpyrrolidone with ethylene glycol, IR spectroscopy.

For citation: Grushova E. I., Zholnerkevich V. I. Comparative analysis of extractive capacity solvents for cleaning aromatic oils from polycyclic aromatic hydrocarbons. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2021, no. 2 (247), pp. 133–137 (In Russian).DOI: https://doi.org/10.52065/2520-2669-2021-247-2-133-137.

Abstract

Comparative experimental data on the extraction purification of aromatic oil samples obtained in the process of selective purification of petroleum vacuum distillates of different viscosities VD-2 and VD-3 with phenol from polycyclic aromatic hydrocarbons with dimethylsulfoxide and a mixture of 90 wt. % N-methylpyrrolidone with 10 wt. % ethylene glycol. Extraction purification was carried out in one step at a temperature of 50°C and the multiplicity of the solvent to the raw material equal to 2:1 wt. h. The analysis of the obtained products of each experiment was carried out, material balances were compiled. The structural and group composition of aromatic oil samples before and after extraction purification was studied by IR spectroscopy. On the basis of IR spectra, the conditional content and the ratio of aromatic and paraffin structures in aromatic oils were evaluated. It is shown that the efficiency of selective purification depends both on the composition and properties of the feedstock and on the properties of the extractant, and the use of IR spectroscopy allows us to quickly qualitatively characterize the efficiency of the process of selective purification of aromatic oil samples from polycyclic aromatic structures.

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05.05.2021