MULTISTAGE FLUID SEPARATION ASSEMBLY AND METHOD

摘要

A multistage fluid separation assembly is disclosed, which comprises: one or more primary gas cooling devices (1) which each have liquefied and/or solidified condensables enriched fluid outlet (8); and a secondary fluid separation vessel (2) having a tubular vertical section (10), which vessel ( 2) is connected to the condensables enriched fluid outlet (8) of said primary g as cooling device(s)(1) via a tangential conduit (3)which injects said condensables enriched fluid tangentially into the tubular section (10) such that a tertiary stream (17) of liquified and/or solidified condensables is induced by gravity and centrifugal forces to swirl in downward direction alongside the inner surface of the tubular section (10) into a liquid collecting tank (19) at or near the bottom of the vessel (2) for collecting a tertiary mixture of liquified and/or solidified condensables, which tank (19 ) is provided with one or more heaters (20) for heating the tertiary mixture t o reduce the amount of solidified condensables, such as wax, paraffins and hydrates, and with one or more liquid outlets (23, 26).