DEVICE FOR REMOVING HYDROGEN SULPHIDE AND LOW-MOLECULAR MERCAPTANS FROM OIL Russian patent published in 2012 - IPC C10G27/06 B01D19/00 

FIELD: chemistry.

SUBSTANCE: The invention relates to raw hydrocarbons processing plants and can be used in oil industry when hydrogen sulphide and low-molecular mercaptans are removed from sulphurous oil. The invention relates to purifier which removes hydrogen sulphide and low-molecular mercaptans from oil. The purifier comprises a sulphurous oil feeding pipe, a oil separator connected in series with the gas pipeline by pipes, an oil pump, a mixing unit, an oxidation reactor, a high pressure separator with gas pipe and purified oil storage tanks, a tank for preparation and storage of the catalyst alkaline solution fitted with dosage pumps where their outlet is connected with the inlet of the oil pump, an air compressor with its outlet connected to the inlet of the mixing unit, and a flare line. The device is also fitted with a water pipe feeding fresh washwater. The water pipe is connected to the pipeline between the high-pressure and the low-pressure separators, furthermore, the gas feeding pipes of oil separator and low pressure separator are connected by a drain gas pipe; the gas pipe of the high pressure separator is connected with the flare line. It is also connected with the purified oil storage tanks through the shunt pipe with a pressure regulator.

EFFECT: increase of stock oil quality in order to conform with the GOST R 51858-2002 standard.

1 dwg