OIL REFINING INSTALLATION (VERSIONS) Russian patent published in 2007 - IPC B01D19/00 

FIELD: oil-processing industry; petrochemical industry; production of the oil refining devices.

SUBSTANCE: the invention is pertaining to the installations of refining of the oil from hydrogen sulfide and the light mercaptans. The installation contains the steam-stripping column with the remote heater-reboiler mounted at the inlet of the installation, the heat exchanger-cooler of the oil mounted after the steam-stripping column, the unit of preparation and storage of the water-alkaline solution of the oxidation catalyst, the pump-batcher and the unit of oxidative refining. The prepared sulfur-bearing oil is fed into the steam-stripping column feeding section, where the desorption removal of the main amount of the available hydrogen sulfide takes place, and then - into the heat exchanger-cooler. The partially refined oil is fed by the pump into the reactor, before which inlet the oil stream is injected with calculated amount of the compressed air, where the after-refining of the oil from the residual hydrogen sulfide and the light mercaptans is exercised at the expense of their catalytic oxidation by the dissolved air. The other version of the installation contains the gaseous-liquid ejector mounted at the inlet of the installation, the tank-separator, the pumping-ejecting installation, the gas-liquid ejector, which gas suction fitting pipe is connected through the pipe duct with upper part of the tank-separator. In this version preliminary desorption withdrawal from the oil of the main amount of the hydrogen sulfide is exercised in the tank-separator at the expense of creation in it of the moderate vacuum. The oil-refining installation ensures improvement of the quality of the commercial oil and the cost reduction at its operation.

EFFECT: the installation ensures improvement of the quality of the commercial oil and the cost reduction at its operation.

7 cl, 2 dwg