UNIT FOR PREPARING NATURAL GAS FOR TRANSPORT Russian patent published in 2022 - IPC B01D53/02 C07C7/12 C10G5/00 F25J3/02 

FIELD: gas industry.

SUBSTANCE: invention relates to the field of the gas industry, namely, to the technique and technology for treating natural gas, and can be used in the gas, petroleum, and other industries on adsorption units for preparing natural gases for transport. The unit for preparing natural gas for transport is equipped with a line for discharging part of the prepared gas from the low-pressure separator, communicating with a third recuperative heat exchanger via a throttle. The third recuperative heat exchanger is communicating on one side with the discharge of low-pressure gas from the low-pressure separator, and on the other side, via the line for supplying the cooled part of the prepared gas, with an additionally installed fuel gas separator and via the cooled low-pressure degassing gas line, with an additionally installed flare knockout drum. In the flare knockout drum, the gas condensate discharge line is connected via a centrifugal pump with the line for discharging gas condensate from the medium-pressure separator to the low-pressure separator, and the low-pressure gas discharge line is connected with the low-pressure fuel network or with the flare discharge line. The line for discharging gas condensate from the fuel gas separator is also connected with the line for discharging gas condensate from the medium-pressure separator to the low-pressure separator. The gas phase line is connected with the fuel network by passing through the recuperative heat exchanger, the flare knockout drum, and the fuel gas separator, to produce dry fuel gas and an additional amount of stable gas condensate.

EFFECT: increase in the environmental safety and resource saving of the unit due to the reduction in the volume of exhaust gases, production of an additional amount of fuel gas and stable hydrocarbon condensate.

1 cl, 1 dwg