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Multi-phase Separation

Multi-phase Separation

Multi-phase separation is required in many applications, for example the removal of solids and liquids in natural gas pipelines, the separation of high viscosity polymer-melts from ethylene gas streams in poly-ethylene plants, and the removal of contaminates in filtration facilities. Coanda has performed experimental studies involving gravity, impact and centrifugal separation mechanisms, and has developed a number of experimental techniques to measure separation efficiency. Typically these experiments involve the construction of a test loop in which the phases are initially combined (for example in a suspension vessel) in the required proportions and delivered to the prototype being studied. In batch configurations the discharge streams are accumulated while in continuous configurations the discharge streams are returned to the blending vessel.

A flow loop at Coanda configured to study the separation efficiency of a high viscosity liquid stream from a gaseous stream.

A 2D LIF image representing the liquid phase PDF at a horizontal cross-section in the vessel.

Liquid / Solid multi-phase separation loop in operation at Coanda (proprietary vessel internals obscured at client’s request). This loop is capable of 1200usgpm with up to 45% solids loading. Propeller flow meters are included to measure total volumetric flow rates through two piping legs.