Contactor and separation apparatus and process of using same
In an improved fiber-film type contactor/separator an enhanced coalescing zone is provided by the presence of a disengagement device connected to a shroud that contains a bundle of high surface area vertical hanging fibers, where the enhanced coalescing zone diverts a portion of an admixture of immiscible liquids to flow radially in a path not parallel to the vertical axis of the hanging fibers whereby the diverted portion of liquids contacts a coalescing surface to cause at least one of the liquids to coalesce into droplets. The immiscible liquids are allowed to settle into separate phase layers and first and second outlets selectively remove the higher density liquid from the lower density liquid.
1. A method of retrofitting an apparatus designed for separating an admixture of at least two immiscible liquids into separate phases, where the apparatus before retrofitting comprises a lower contact zone containing a plurality of hanging fibers defining a vertical axis that are contained in a shroud that is configured to only allow the admixture of liquids to flow downward along the hanging fibers parallel to the vertical axis, where the retrofitting comprises:
providing the apparatus containing the shroud; and
adding a vertical segment having an open end and side openings to the shroud to form an enhanced coalescing zone that allows a portion of the admixture of liquids to exit the the side openings following a flow path that is not parallel to the vertical axis, where vertical segment further comprises an annulus having a coalescing surface and an open center configured to allow the hanging fibers to extend through the open center, where the side openings are part of inner and outer walls of the annulus and the coalescing surface is positioned between the inner and outer walls adjacent to the side openings of the inner and outer walls.
2. The process of claim 1 wherein the shroud is extended to surround free hanging vertical hanging fibers to increase the volume of the lower contact zone.