Abstract:
Disclosed herein is an electrostatic fluid filtration system suitable for removing sub micron insoluble contaminants known to cause varnish from fluids such as dielectric fluids. The electrostatic fluid filtration system is configured to remove both water and other contaminants from a target fluid (e.g. a dielectric fluid) and comprises a cabinet, a computer control unit, and one or more substantially cylindrical filtration units, including at least one of a water filtration unit and an electrostatic contaminant filtration unit. In the contaminant filtration unit, the target fluid flows radially through the filtration media that is positioned between the electrode plates in a generally horizontal flow pattern. This forces the target fluid to traverse multiple energy fields in a serpentine fashion and in a single pass through the contaminant filtration unit. After flowing through each layer of the filtration media, the target fluid is discharged from the electrostatic contaminant filtration unit.
Abstract:
An oil cleaning system is provided having an oil source and a re-circulating oil flow conduit that is in fluid communication with the oil source and operable to draw an oil flow stream therefrom. A barrier filter is further provided and positioned in the oil flow conduit to filter particles from the flow stream. An electrostatic fluid cleaner is also positioned in the oil flow conduit downstream of the barrier filter to remove particles from oil flow exiting the barrier filter. Furthermore, a selectively operable bypass conduit is provided that is fluidly connected to the oil flow conduit upstream of the electrostatic fluid cleaner. A sensor is positioned to detect a predetermined aqueous content upstream of the electrostatic fluid cleaner and to divert flow in the flowstream into the bypass conduit. The oil cleaning system also includes a sensor that is operatively associated with the bypass conduit and is positioned to detect a predetermined aqueous content in the flow stream upstream of the electrostatic cleaner. Upon detection of the predetermined aqueous content, flow in the flow stream is diverted through the bypass conduit.
Abstract:
The invention includes a method for dewatering and/or desalting a water-in-oil emulsion comprising introducing a plurality of streams of the emulsion into the electrostatic field under opposed flow whereby the water coalescence is enhanced. The invention also includes an improved electrostatic apparatus for dewatering and/or desalting a water-in-oil emulsion comprising a plurality of horizontally directed nozzles positioned to introduce a plurality of streams of the emulsion into the electrostatic field under opposed flow conditions.
Abstract:
The invention provides a method, apparatus and system for separating blood and other types of cellular components, and can be combined with holographic optical trapping manipulation or other forms of optical tweezing. One of the exemplary methods includes providing a first flow having a plurality of blood components; providing a second flow; contacting the first flow with the second flow to provide a first separation region; and differentially sedimenting a first blood cellular component of the plurality of blood components into the second flow while concurrently maintaining a second blood cellular component of the plurality of blood components in the first flow. The second flow having the first blood cellular component is then differentially removed from the first flow having the second blood cellular component. Holographic optical traps may also be utilized in conjunction with the various flows to move selected components from one flow to another, as part of or in addition to a separation stage.
Abstract:
A system and a method for separating interdispersed gas and liquid components of an inlet stream includes introducing the inlet steam into a vessel having a dry gas outlet and a liquid outlet, passing the inlet stream into at least one vortex tube supported within the vessel, the vortex tube having a gas outlet and a liquid outlet, rapidly rotating the inlet stream within the vortex tube to separate entrained liquid and passing reduced moisture outlet gas from the vortex tube into the interior of the vessel and passing the outlet gas through a mist eliminator within the vessel to provide gas that is passed out the vessel dry gas outlet.
Abstract:
A process for separating an emulsion into separate and easily recoverable phases. The process comprises exposing an emulsion comprising a discontinuous phase and a non-conducting continuous phase to an electric field thereby effecting coalescence of the discontinuous phase into droplets of a size for effective gravitation from the continuous phase, where the discontinuous phase and the continuous phase have different dielectric constants and densities and at least one of the phases comprise a silicon containing compound or a silicon containing polymer. The present process is especially useful for separating emulsions where the discontinuous phase is an aqueous acid solution and the continuous phase is diorganopolysiloxane.
Abstract:
Device for separating a mixture consisting of at least a continuous phase (I) and of at least a conducting disperse phase (II) in the form of particles such as drops in the continuous phase, the two phases having different densities. The device includes at least two substantially cylindrical parts (1, 3) fitted into each other which delimit an annular zone (5), introducing means (6, 7) for introducing the mixture to be separated at the periphery of the outer tubular part (1), arranged so as to communicate a rotational motion to the mixture, means for applying between the two parts (1, 3) a potential difference capable of causing the particles of the disperse phase (II) to coalesce, receiving and decanting means (4), means (8, 9) for discharging the two phases (I) and (II) at least partly separated on account of the differentiated motion of the particles which have coalesced and means for establishing a circulation of the mixture.
Abstract:
The present invention is a liquid-liquid contactor which employs an electrostatic field to mix an organic phase with an aqueous phase and to coalesce the aqueous phase in order to accomplish extraction of a component present in the aqueous phase. The electrostatic field is formed between a rod electrode located within a gaseous phase adjacent the top of the contactor and a plate electrode located within the aqueous phase adjacent the bottom of the contactor by applying a high voltage to the rod electrode. The extraction process consists of an extraction stage where the component is extracted out of the aqueous phase by the organic phase and a subsequent stripping stage where the component is stripped out of the organic phase by ion exchange with a second aqueous phase.
Abstract:
An improved process for electrically coalescing water-in-oil emulsions in an AC electrical field, wherein the improvement comprises using insulated electrodes having a dielectric constant which is at least about 3 and having a hydrophobic surface in contact with the emulsion. This invention results in faster coalescense of the emulsion than can be obtained with insulated electrodes having a lower dielectric constant, even if the electrode-emulsion interface is hydrophobic. Formation of spongy emulsion and decomposition of the oil phase under the high voltages required for rapid coalescense is minimized and even eliminated.
Abstract:
Diluted bitumen emulsion, the aqueous phase of which carries undissolved mineral particles, is upgraded by resolving it by subjecting it to a unidirectional electric field established between an energized electrode and an aqueous material surface serving as an electrical ground. The emulsion is introduced below the level of such surface and allowed to rise. A potential gradient is provided which is sufficient to cause coalescence of the aqueous material in the emulsion as soon as the emulsion breaks the aqueous material surface, the emulsion thereby being resolved at such surface.