The development of new or intensification of already known deposits and the attraction of this additional source of hydrocarbons for recycling at Ukrainian refineries is a very actual topic today. In connection with this, Rozhniativ and Styniava deposits, which are located in Ivano-Frankivsk and Lviv regions, respectively, have been overhauled. In this work, a detailed study of oils from these deposits was carried out to determine the variant of their processing.
According to the obtained results, the oil fields of Styniava and Rozhniativ are rather light (855 and 849 kg / m3, respectively). Sulfur content in Rozhniativ oil is 0.404%, in Styniava - 0.346%. The oil freezing point is relatively low, but not sufficient to produce commercial diesel fuel, so oil requires dewaxing processes. The water content in the oil of Styniava deposit is 2.1%, with the demand for pre-processing up to 0.1%, so oil must be dehydrated. Oil of the Rozhniativ deposit has only traces of water. The fractional composition of oil has shown that gasoline fractions contain in it is about 30%, diesel fractions - about 25%.
Rozhniativ and Styniava oil deposits contain a little amount of low substances resin, which is typical of paraffinic oil. They will serve as good raw materials for thermodestructive processes. According to the specified micro-elemental composition of oil, sodium and calcium amounts are the largest. These elements are part of the reservoir water. There is a small amount of vanadium, nickel and iron in the oil.
The research of separate fractions of oil was conducted. The resulting gasoline fractions are characterized by low sulfur content, and sufficiently high content of aromatic and naphthenic hydrocarbons. It is expedient to send these fractions to the catalytic reforming plant. The resulting diesel fractions do not meet the requirements of the state standard with respect to the content of sulfur and the hardening temperature, so they should be directed to the hydroisomerization plant. The output of fuel oil is about 48% by weight with respect to the initial oil. The best way of its processing is hydrocracking or catalytic cracking.
1. Prokopiv V. Y., Kekukh D. A., Muzychko T. I., Tyvonchuk S. P. (2018) Suchasni geologichni zdobutki PAT "Ukrnafta". Naftogazova galuz Ukrainy- Oil and Gas Industry of Ukraine, 2, 12-16.
2. Rozenfeld I. M., Vasylenko S. V., Kotsaba V. I., Volovetskyi V. B., Shchyrba O. M. (2018) Normatyvni dokumenty PAT "Ukrgazvydobuvannia" dlia potochnogo ta kapitalnogo remontiv sverdlovyn. Naftogazova galuz Ukrainy. Oil and Gas Industry of Ukraine, 3, 14-19.
3. W.Gόrski (2016) Przetwory naftowe i płyny eksploatacyjne: leksykon. Praca zbiorowa. Krakow, drukarnia GOLDRUK [in Poland].
4. Bannov P. G. (2005) Osnovy analiza i standartnyie metody kontrolia kachestva nefteproduktov. Moskva: CNIITEneftekhim. [in Russian].
5. ASTM D2887 Standard Test Method for Boiling Range Distribution of Petroleum Fractions by Gas Chromatography.
6. ASTM D5307-97 (Reapproved 2002) e1 Standard Test Method for Determination of Boiling Range Distribution of Crude Petroleum by Gas Chromatography
7. ASTM D6352-04e1 Standard Test Method for Boiling Range Distribution of Petroleum Distillates in BoilingRange from 174 to 700 °C by Gas Chromatography.
8. Babatunde O., Boichenko S., Topilnytskyy P., Roman¬chuk V. (2017) Comparing physico-chemical properties of oil fields of Nigeria and Ukraine. Chemistry & Che¬mical Technology, Vol. 11, No. 2, 220-225. [in English].
https://doi.org/10.23939/chcht11.02.220
9. Ya-fei Chen, Wan-fen Pu, Yi-bo Li, Xue-li Liu, Fa-yang Jin, Jian Hui, Xiao-long Gong, Chen Guo (2018). Novel Insight into the Viscosity-Temperature Characteristic by the Comparison of Tahe Ordinary- And Ultra- Heavy Oils. Energy & Fuels, 32:12, 12308-12318. [in English]
https://doi.org/10.1021/acs.energyfuels.8b03091
10. Тopilnytskyy P., Romanchuk V., Yarmola T. (2018) Production of corrosion inhibitors for oil refining equipment using natural components. Chemistry & Chemical Technology, Vol. 12, No. 3, 400-404. [in English]
https://doi.org/10.23939/chcht12.03.400
11. P. Topilnytskyy, V. Romanchuk, S. Boichenko, Y. Golych (2014) Physico-chemical properties and efficiency of demulsifiers based on block copolymers of ethylene and propylene oxides. Chemistry & Chemical Technology, Vol. 8, No. 2, 211-218. [in English]
https://doi.org/10.23939/chcht08.02.211
12. Kapustin V. M., Gureev A. A. (2007) Tekhno¬logiia pererabotki nefti v 2 ch. Chast vtoraia. Destruktivnyie protsessy. Мoskva: KolosS. [in Russian].
13. DSTU-7688:2015 Palyvo dyzelne Evro. Tekhnichni umovy.
14. Machynskyi О. Ya., Topilnytskyy P.І. (2011) Gidrokreking: monografiia. Lviv: Vydavnytstvo Lvivskoi politekhniky. [in Ukrainian].