GAS PROCESSING PLANT Russian patent published in 2023 - IPC B01D53/00 B01D53/48 B01D53/73 

FIELD: oil and gas.

SUBSTANCE: invention relates to equipment for the processing of sour hydrocarbon gases containing mercaptans, and may be used in the gas industry. The invention relates to a gas processing plant, including a feed gas supply line with a compressor, an amine treatment unit connected to a sulfur production unit equipped with sulfur and exhaust gas output lines, an adsorption drying and purification unit equipped with a regeneration gas output line with branches of the recirculated gas supply line and balance parts of the regeneration gas located thereon, a low-temperature separation unit equipped with a line for the output of a wide fraction of light hydrocarbons and a line for the output of dry stripped gas, which is connected to the adsorption drying and purification unit with a purge gas supply line. On the supply line of the recirculated part of the regeneration gas, a demercaptanization unit is installed, equipped with a supply line of hydrogen-containing gas and connected to the feed gas line by a line for supply of the recovered recirculated part of the regeneration gas.

EFFECT: reduction in the content of mercaptans in acid gas and an increase in the quality of commercial sulfur.

1 cl, 3 ex, 2 dwg