Pall’s PhaseSep coalescer/separator stack should be used when the contaminant is an aqueous liquid such as water, caustic, or an amine solution and when the IFT is greater than 3.0 dyne/cm. (see Figure 1). Using Pall’s coalescer/ separator stack in Pall’s unique vertical housing design is the most efficient technique for separating two liquids meeting the above criteria. The liquid/liquid mixture enters the coalescing element and flows inside to outside. This is where small liquid droplets suspended in the continuous phase come together, or coalesce, as the mixture moves through Pall’s proprietary coalescer medium.
Contaminant-free liquid and large droplets of the dispersed phase flow toward the separator located directly below the coalescer stage. The flow is outside to inside. The separator medium is hydrophobic preventing the aqueous phase from entering the separator. Only the non-aqueous continuous phase fluid flows through the separator. The two liquids are removed by separate drain connections.