METHOD AND FACILITY FOR PRODUCING DEPRESSANT TO DIESEL FUEL, DEPRESSANT AND DIESEL FUEL Russian patent published in 2008 - IPC C10L1/192 C10L1/16 C10L1/222 

FIELD: oil and gas industry.

SUBSTANCE: invention is used in oil processing and petrochemistry. There is described the method of producing depressant; this method includes thermo-oxidising of decomposition reaction of crushed synthetic ethylene-propylene rubber with molecular weight of 300000-1000000 at presence of a dissolvent - hydrocarbon C₁₀-C₁₈. Thermo-oxidising decomposition reaction is carried out at atmospheric pressure and reaction medium temperature of 170-210°C, at that oxidising is performed with molecular air oxygen. Air is bubbled through the reaction medium and is stabilised with amino compound stabiliser. There is also suggested a depressant, produced in accordance with the above described method and diesel fuel on base fuel, containing produced depressant at amount of 0.05-0.2 wt %. Also there is described a facility for producing of depressant for diesel fuel, including a reactor of thermo-oxidising decomposition of ethylene-propylene copolymer; the said reactor has a source products input region, a case for its heating, and a device for bubbling of air through the reaction medium; the facility includes a homogeniser, an input of which is connected to the reactor output; at that the homogeniser is equipped with a closed circuit for circulation of a homogenised medium, connected with its input and output with the homogeniser.

EFFECT: reduction of power costs.

14 cl, 2 tbl, 14 ex, 1 dwg