“…In recent years, the attention of scientists in the field of energy has been attracted by the processes of hydrothermal oxidation, defined as chemical and physical processes in water environments at high pressures and temperatures [1][2][3][4][5][6][7]. A special place is occupied by chemical processes in supercritical water environments (Tcr=374,2ºС, Pcr=217,6atm), when water becomes a supercritical substance called fluid.…”