FIELD: petrochemical industry. SUBSTANCE: invention presents a method to produce hydrocarbon oils with the given compositions. A hydrocarbon oil is heated up and added with a dopant at mixing it in the mixer with the following pumping of the blend through a closed contour of the container and the mixer. The blend of doped oil then is subjected to ultrasonic oscillations of super high frequency equal to the oil molecules resonant frequency. EFFECT: decrease of power consumption for operation of the pump and heating and preservation of high figures of the hydrocarbon oil quality. 2 dwg
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