FIELD: chemistry.
SUBSTANCE: group of inventions relates to a method and an installation for the purification of a multi-phase hydrocarbon flow. The multi-phase hydrocarbon flow is purified with obtaining a purified liquid hydrocarbon flow, such as a flow of liquefied natural gas. The multi-phase hydrocarbon flow is supplied into the first gas-liquid separator, in which the said flow is divided under the first pressure into a hydrocarbon vapour flow of the first separator and the lower flow of the first separator. The lower flow of the first separator is then divided in the second gas-liquid separator under the second pressure, which is lower than the first pressure, with the formation of a hydrocarbon vapour flow of the second separator and a purified hydrocarbon flow. The hydrocarbon vapour flow of the second separator is subjected to compression in a compressor for the upper flow, which results in obtaining a stripping vapour flow, which is supplied into the first gas-liquid separator.
EFFECT: group of inventions is aimed at the creation of the method and installation for obtaining the purified liquid hydrocarbon flow, which does not require the application of cold in the upper gaseous flow for the creation of an irrigation flow.
17 cl, 2 dwg, 1 tbl
