FIELD: gas processing.
SUBSTANCE: invention relates to four variants of the associated petroleum gas (APG) processing installation to produce liquefied hydrocarbon gases. According to one of the variants, the installation includes a two-stage compressor station for compression of APG and stabilization gas, a dephlegmator with an external cold source, a separator with a liquefied hydrocarbon gas outlet line connected by a stabilization gas outlet line to the APG supply line, and a gas dehydration and/or purification unit. the installation is characterized by the fact that a heat exchanger and a three-phase separator are located on the APG supply line after the compressor station, connected to the reflux condenser by a reflux outlet line, equipped with a water outlet line, a separation residue outlet line with a reducing device and a separator, and a gas outlet line on which a drying and/or cleaning unit and a reflux condenser with a reflux gas outlet line, on which a heat exchanger is located.
EFFECT: reducing the volume of adsorbent loading, reducing energy consumption for cooling the compressed gas.
4 cl, 4 dwg, 4 ex
