FIELD: oil and gas industry.
SUBSTANCE: low pressure heavy hydrocarbon gas stripping unit includes a compressor mounted on a feed gas line, and a dephlegmator with condensate discharge line and a heat-mass exchange unit cooled by cooling agent. The method is characterized by that a multi-phase pump is installed as a compressor. A semi-blind plate is arranged in the dephlegmator above compressed raw gas inlet connected to raw gas line before the multi-phase pump by circulating reflux line, a reducing device and the heat-mass-exchange unit of the dephlegmator are arranged on the reflux line, condensate discharge line is connected to the separator equipped with residue discharge line and a line for feeding separation gas into the feed gas line before the multi-phase pump, and the condensate discharge line is connected to multi-phase pump by circulating condensate supply line. A version of the stripping unit is also claimed.
EFFECT: reduced power consumption by excluding the use of external coolant, which role is performed by recirculation reflux.
6 cl, 1 dwg
