1. The Department of Oil, Gas and Solid Fuel Refining Technologies, National Technical University «Kharkiv Polytechnic Institute», 61002 Kharkiv, Ukraine
2. The Department of Chemical Technology and Engineering, State University of Economics and Technology, 50005 Kriviy Rih, Ukraine
3. The Department of Chemical Technology of Oil and Gas Processing, Lviv Polytechnic National University, 79013 Lviv, Ukraine