Product/Service
Phasesep Coalescer Cartridges
•Datasheet: Phasesep Coalescer Cartridges
The inability to efficiently separate liquid/liquid emulsions can be a very costly problem in the oil, gas, and chemical industries. Liquid contamination can cause final products to be off-specification, rapid deactivation of downstream catalysts, corrosion of downstream storage facilities, and increased costs for wastewater treatment.
Separating liquid/liquid dispersions can be difficult depending on the physical properties of the two liquid phases. The specific gravity, viscosity, and interfacial tension (IFT) of the two liquid phases are important parameters in determining how easy two liquids can be
separated. Conventional coalescers begin to lose efficiency when the IFT gets below 20 dyne/cm. In addition, efficient separation is a function of the compatibility of the liquids with the coalescer medium. A good coalescing medium is not necessarily compatible with the liquids and a compatible medium is not necessarily a good coalescing medium.
Pall's Phasesep® coalescer is available in several types of high efficiency coalescing media which ensures that a Pall coalescer can be specified for virtually any liquid/liquid separation application in the oil, gas, and chemical industries.
A Pall Phasesep system is available in two different configurations. Both configurations begin with a filtration stage to remove solid contaminants.
Prefiltration
Due to the fine pore structure of the coalescer medium, Pall recommends that a prefilter be installed upstream of the coalescer assembly. Removal of solids performs the following important functions:
Extends significantly the life of the coalescer. Reduces particulate concentration meeting fluid specifications. Decreases stability of the liquid/liquid emulsion, thereby making liquid/liquid separation easier. Two different housing configurations are available for Phasesep® coalescers.
Applications
- Removal of carried-over caustic from refinery fuels downstream of caustic treating processes.
- Separation of oil from water.
- Removal of water and caustic from on-line analyzer sampling systems.
- Separation of water from hydrogen peroxide working solutions.
- Separation of hydrogen peroxide working solutions from hydrogen peroxide.
- Removal of carried-over amine from hydrocarbon downstream of a liquid/liquid amine contactor.
- Removal of oil from ammonia.
- Separation of pyrolysis gas from quench water in ethylene plants.
•Datasheet: Phasesep Coalescer Cartridges
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