Process for maintaining the pressure within a two-phase product storage under a pre-determined limit during the filling and associated condensation installation.

摘要

The storage tanks found in oil terminals for retaining, in the form of a liquid phase (20) below a vapour phase (30), large quantities of product with a vapour pressure greater than 50 kilopascals at the storage temperature present a problem during filling when high injection flow rates of the product must be guaranteed. In order to overcome this problem economically and flexibly, the present invention proposes, while the product is injected into the storage tank (6) in liquid form, evacuating the vapour from the vapour phase (30) of this storage tank (6), condensing it and returning it to the storage tank (6) by means of an ejector-condenser (10) in which at least a portion of the injected liquid product flows. <IMAGE>