Andriy Kytsyaab, Liliya Bazylyaka*, Olena Pasternakc & Mykola Turovskiiaa Department of Physical Chemistry of Fossil Fuels, Institute of Physical-Organic Chemistry and Coal Chemistry named after L. M. Lytvynenko, National Academy of Sciences of Ukraine, Lviv, Ukraineb Physico-Mechanical Institute NAS of Ukraine, Lviv, Ukrainec Department of Environmental Management and Environmental Protection, Mariupol State University, Mariupol, Ukraine