METHOD FOR DEMETALLIZATION OF HYDROCARBON PRODUCTS Russian patent published in 2021 - IPC C10G32/02 

FIELD: oil industry.

SUBSTANCE: present invention relates to a method for demetallization of oil or fuel oil, including carrying out a purification process by ensuring the combined movement of a mixture of the initial hydrocarbon feedstock and reagents in the reactor, filtering the mixture at the end of its processing in the reactor, while a ferromagnetic liquid based on magnetite taken in an amount of not more than 5 wt% of the entire reaction mass in the reactor, the initial hydrocarbon feedstock and the ferromagnetic liquid are mixed to form a homogeneous mixture. The resulting homogeneous mixture for processing is fed into the reactor with ferromagnetic elements inside it. The rotation of the homogeneous mixture of the initial hydrocarbon feedstock and the ferromagnetic liquids together with ferromagnetic elements is ensured in a rotating electromagnetic field characterized by a frequency of 50 Hz of a three-phase AC network with a voltage of 380 V, magnetic induction in the working area of ​​the reactor 0.9-1.1 T and at the number of revolutions of ferromagnetic elements in the reaction zone in the range from 2000 to 3000 per minute inclusive, the processing of a homogeneous mixture in a rotating electromagnetic field is carried out at a flow rate of the mixture through the reactor in the range of 0.1-0.5 m/s. After processing a homogeneous mixture in a rotating electromagnetic field, its magnetic separation is carried out to separate ferromagnetic nanoparticles. Then the mixture is fed for purification to a mesh-type electrostatic filter in which the mixture is exposed to a pulsating electric field with a voltage in the range of 2-20 kV, a pulsation frequency of 10-200 Hz and pulse amplitude in the range of 0.5-2 kV. Then the mixture is fed into a plate-type electrostatic filter with a voltage of 200-2000 V and with alternating polarity of electrodes with a frequency of 10-200 Hz, separation of the liquid and solid phases is carried out. The electrodes are made in form of a plate.

EFFECT: invention is aimed at increasing the efficiency of the method for demetallization of hydrocarbon products, ensuring the simplicity and reliability of the method, providing a multi-level and multifunctional impact on the processed raw materials, ensuring the environmental friendliness of the method.

8 cl, 1 dwg, 1 tbl, 3 ex