PROCESS FOR THE SEPARATION OF A MULTIPHASE STREAM WHICH FLOWS ALONG A PIPE BY MEANS OF A T-JUNCTION

摘要

The present invention relates to a separation process for j multiphase streams which flow into j pipes, with j varying from 1 to n, where n is an integer number, said multiphase streams comprising a gas or vapour phase, one or more liquid phases and a solid phase, said process characterized in that it comprises the following steps: ° transporting j multiphase streams through j pipes towards j T junctions situated along said pipes, ° separating, by means of said j T junctions, each of j streams into two fluxes so that one flux has a higher volumetric gas composition and the other has a higher volumetric liquid composition; ° completing the phase separation in the 2j fluxes leaving the T junctions by means of j+1 traditional separators, of which at least j separators substantially separate fluxes which are characterized by a higher volumetric gas composition, and at least one separator separates fluxes characterized by a higher volumetric liquid composition; ° controlling the velocity of the two fluxes leaving each j T junction by means of a control system, in order to regulate the volumetric ratio of the fluxes leaving each T junction and respect the critical entrainment condition of the gas phase in each flux having a higher volumetric gas composition; ° storing the liquid phases separated by means of separators in an accumulation vessel and piping the gas phases separated by means of separators having a higher volumetric composition of gas, to an evacuating line.