METHOD OF DEGASSING LIQUID SULPHUR Russian patent published in 2018 - IPC C01B17/02 B01D19/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the field of oil and gas processing industry and can be used in processes of degassing liquid sulfur from hydrogen sulphide. Process is a process for the preliminary removal of physically dissolved H₂S by centrifuging liquid sulfur in a centrifugal degassing unit followed by decomposition of hydrogen polysulfides to dissolved in liquid sulfur H₂S as a result of evacuation of liquid sulfur in the vacuum degassing unit. At the same time, the supply of liquid sulfur to the centrifugal degassing unit is carried out through a jet vacuum pump connected along a vacuum line to a vacuum degassing unit, during operation of which a vacuum is created in the vacuum degassing unit and withdrawal from the block formed by H₂S in the process of decomposition of hydrogen polysulfides. Degassed liquid sulfur is then withdrawn from the vacuum degassing unit by displacement with nitrogen gas, and the removed H₂S from the centrifugal degassing unit is output by the exhaust fan.

EFFECT: technical result is to intensify the process of degassing liquid sulfur with a residual content of H₂S and H₂S_x in liquid sulfur, close to absolute zero values, and in reducing the capital and operating costs of the process.

4 cl, 1 dwg, 1 tbl, 1 ex