Extractive desulfurization of pyrolysis tire oil with deep eutectic solvent using hydrodynamic cavitation
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Extractive desulfurization of pyrolysis tire oil with deep eutectic solvent using hydrodynamic cavitation Jelena D. Jovanovic 1 & Sandra D. Petkovic 2
&
Mihajlo N. Gigov 2 & Borivoj K. Adnadjevic 2
Received: 20 April 2020 / Accepted: 6 August 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract The extractive desulfurization (EXDS) of pyrolytic oil (PO) from organosulfur compound with deep eutectic solvent (DES), tetrabutylammonium bromide-formic acid, using hydrodynamic cavitation (HDC) was investigated. Applying the method of independent variation value one per variable, the effect of the processing parameters of EXDS using HDC: the inlet pressure of the reaction mixture (P1), the mass ratio of DES to pyrolysis oil (DES/PO), the temperature of the reaction mixture (T) and the number of passes of the reaction mixture through the cavitation reactor (n), on the degree of desulfurization of pyrolytic oil (DDS) was determined. In order to determine the effect of processing parameters on the DDS, the processing parameters were varied following manners: (a) the value of P1 was varied in the range of 1–50 atm at DES/PO = 5, T = 298 K and n = 10, (b) the value of DES/PO was varied in the range of 1–10 at P1 = 30 atm, T = 298 K and n = 10, (c) the value of temperatures was varied within the range 298–338 K at P1 = 30 atm, DES/PO = 5, and n = 10, and (d) the value of (n) was varied within the range 1–20 at P1 = 30 atm, DES/PO = 5, and T = 298 K. Based on the obtained results, it was found that the increase in the values of P1, DES/PO, T, and n leads to the increase in the value of DDS of pyrolytic oil. The optimal processing parameters EXDS of pyrolytic oil are determined. The model mechanism of the extractive desulfurization of pyrolytic oil with deep eutectic solvent and the influence of cavitation effects on the degree of pyrolytic oil desulfurization are discussed. Keywords Hydrodynamic cavitation . Pyrolytic oil . Desulfurization . Extraction . Deep eutectic solvent
Introduction Permanent increasing world population followed with rapid industrial developments and tremendous growth of automotive industry unavoidably leads to hugely increased consumption of fossil fuel-derived oils which is certainly connected with the serious problems of pollutant emissions (Chen et al. 2010). One of the major pollutions is organosulfurs originating from transportation fuels. During combustion process, sulfur oxide gases are produced which are held responsible for acid rain. Most importantly, they have damaging effects to our Responsible Editor: Philippe Garrigues * Jelena D. Jovanovic [email protected]; [email protected] 1
Institute of General and Physical Chemistry, Belgrade, Studentski trg, 12-16 11001 Belgrade, Republic of Serbia
2
Mining Institute, Batajnicki put 2, 11080 Belgrade, Republic of Serbia
health including various aspects from respiratory illness to cardiovascular disease and even cancerous diseases (Li et al. 2016a, b).
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