COMPLEX FOR PROCESSING NATURAL GAS WITH PRODUCTION OF LIQUEFIED NATURAL GAS OF CONTROLLED QUALITY Russian patent published in 2020 - IPC F25J1/00 F25J3/00 

FIELD: gas industry.

SUBSTANCE: invention relates to the field of natural resources use and can be used in gas processing industry. Complex for processing natural gas with production of liquefied natural gas (LNG) of controlled quality includes a gas processing unit with production of commercial natural gas prepared for liquefaction, ethane fraction and products of separation of wide spread of hydrocarbons (NGF). Complex also comprises a unit for preparing raw natural gas and removing undesirable impurities, a unit for extracting ethane fraction and NGL, a link of a booster compressor station for supplying commercial natural gas to a gas pipeline and a natural gas liquefaction unit and a unit for purifying and fractionating NGL with a link for storing commercial products, as well as a natural gas liquefaction unit, comprising a measurement unit for input of natural gas prepared for liquefaction, a gas liquefaction plant, a LNG storage link and a LNG export link. In the gas processing unit, commercial natural gas with higher calorific capacity in range of 1000-1020 BTU/st. cub. feet, evaluated at temperature of 15 °C and atmospheric pressure is generated. In the natural gas liquefaction unit, a commercial LNG with calorific value in range of 1000-1150 BTU/st. cub. feet is produced, which is provided by supplying into the commercial natural gas of the components that increase caloric content in the gas processing unit.

EFFECT: technical result is possibility of variation of calorific value of product.

7 cl, 1 dwg