PLANT FOR PURIFICATION OF ASSOCIATED PETROLEUM AND NATURAL GAS FROM SULFUR-CONTAINING COMPOUNDS Russian patent published in 2019 - IPC B01D53/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to gas and oil industry, in particular to plants for cleaning gases from sulfur-containing compounds, and can be used in preparing associated petroleum gas (hereinafter APG) and natural gas for consumption. Purification and drying of associated petroleum gas from sulfur-containing compounds consists of a filter for purification from mechanical impurities and a separator for separation of finely dispersed water and condensed hydrocarbons, installed before the gas inlet into the adsorber, unit for collection of heavy hydrocarbons from associated petroleum gas and unit for drying associated petroleum gas consisting of adsorbers equipped with valves at inlet and outlet of associated oil gas. At the same time gas analyzers are installed at the output of the drying unit and heavy hydrocarbons catching unit. In unit of deep desulphurization as adsorbers there used are heat exchangers with sorbent in inter-tube space equipped with pipelines with valves for supply and discharge of impregnating solution. In the sulfur-containing compounds recycling unit heat exchangers are installed instead of reactors with sulfur traps and capacity for sulfur collection.

EFFECT: invention increases degree of purification of natural or associated petroleum gas from sulfur-containing compounds to concentration of not more than 1 ppm.

1 cl, 1 dwg