Methods and systems are provided for desalting wash water treatment and recycling processes and control of those processes. More specifically, treatment of wash water and wastewater streams using forward osmosis are provided. Additional methods and systems for desalting processes are provided, including recycling wash water. Methods for controlling operations of desalting systems and processes are provided.

Methods and systems are provided for desalting wash water treatment and recycling processes and control of those processes. More specifically, treatment of wash water and wastewater streams using forward osmosis are provided. Additional methods and systems for desalting processes are provided, including recycling wash water. Methods for controlling operations of desalting systems and processes are provided.

A separation vessel containing a multi-phase mixture comprising oil and water comprises a buoyant thermal energy transfer device. The buoyant thermal energy transfer device further comprises a thermally conductive body and an internal heating element. The buoyant thermal energy transfer device defines a collective specific gravity between about 0.7 and about 1.2, which may be accomplished by adding positioning floats to the buoyant thermal energy transfer device. With such a collective specific gravity, the buoyant thermal energy transfer device is situated in the emulsion layer of the multi-phase mixture, with the internal heating element applying heat to emulsion layer, aiding in the breakage of emulsions. Demulsified oil and water may then be removed from the separation vessel.

A forward secant swirl tube may be used to separate heavier particles such as oil and moisture from an air flow. The swirl tube includes a central hub having a centerline and a circular perimeter. An outer circular housing extends from an inlet edge to an outlet edge. A plurality of vanes extends from the central hub to the outer housing. The vanes are equally spaced around the central hub. Each vane has an inlet transition portion connected to a discharge portion. The top edge of the inlet transition portion of each vane is offset from the centerline of the central hub forming a forward secant line with respect to the centerline of the central hub and a direction of spin induced by the plurality of vanes.

A particle size tracking system for providing predictive maintenance and battery tuning of hydrocyclones arranged in a battery configuration, featuring a control having a signal processor configured to: receive signaling containing information about particle sizes of material flowing in pipes of hydrocyclones arranged in a battery configuration; and determine corresponding signaling containing information to control the operation of each hydrocyclone arranged in the battery configuration, based upon the signaling received. The signal processor may be configured to provide the corresponding signal as control signaling to control the operation of each hydrocyclone arranged in the battery configuration.

A subsea multiphase fluid separation system has a gas separator for separating gas from a well stream containing oil. A water separation stage downstream of the gas separator has at least one dual pipe separator for separating water from the oil of the wellstream. A water treatment system for cleaning oil from water is produced by the water separation stage. On an oil outlet path, downstream of the or each dual pipe separator, there is an electrocoalescer and at least one second separator in series.

The present disclosure relates to a process for treating a feedstock containing tall oil, the process including separation of a light stream from the feedstock, followed by removal of a heavy fraction from the feedstock, in which process the separation of the light stream from the feedstock a fractionator is used and at least one product is collected from the light stream. The disclosure also relates to an apparatus for use in the process and use of a fractionator in dehydration of a feedstock containing tall oil.

An apparatus for treating a multiphase hydrocarbon-containing fluid in an oil and/or gas production facility, the apparatus comprising: (a) an inlet for a multiphase hydrocarbon-containing fluid, wherein the inlet comprises a first pipe network configured to be connectable to a plurality of oil well heads in an oil field; (b) a separation system comprising: (i) a solids separator in fluid communication with the inlet; (ii) a solids outlet connected to the solids separator; (iii) a fluid separator in fluid communication with the solids separator, the fluid separator being configured to separate the remaining multiphase hydrocarbon-containing fluid into an oil phase, a water phase and a gas phase; (iv) an oil outlet connected to the fluid separator; (v) a gas outlet connected to the fluid separator; and (vi) a water outlet connected to the fluid separator; (c) a solids cleaning system connected to the solids outlet, wherein the solids cleaning system is configured to clean deposits of residual oil from the solid particles separated by the solids separator to provide cleaned solid particles and first residual oil, the solids cleaning system having a first output for outputting the cleaned solid particles and a second output configured to output the first residual oil; and (d) a water cleaning and recycling system connected to the water outlet, wherein the water cleaning and recycling system is configured to clean residual oil from the water phase separated by the fluid separator, the water cleaning and recycling system comprising an oil filter for separating the residual oil from the water phase to provide cleaned water and second residual oil, the oil filter having a third output for recycling the cleaned water to at least one well head of the oil field, wherein the third output comprises a second pipe network configured to be connectable to the at least one well head of the oil field, and a fourth output configured to output the second residual oil. Also disclosed is a corresponding method.

A continuous oil-water separation system includes a storage tank having an inlet and an outlet and storing an oil-water mixture, a filter housing including a storage space having a predetermined height and having an inlet connected to the outflow portion of the storage tank to allow the oil-water mixture to flow in therethrough, a water drain hole allowing water separated from the oil-water mixture to be discharged therethrough, and an outlet allowing a residual oil-water mixture to flow out therethrough, a super-hydrophilic oil-water separation filter positioned in the storage space of the filter housing to absorb water from the oil-water mixture and connected to the water drain hole to allow the absorbed water to be discharged therethrough, a pressure control valve installed on an outlet pipe extending from the outlet, and a hydrophobic membrane connected to a rear end of the pressure control valve on the outlet pipe.

This disclosure describes methods to separate solids from liquids in a production facility. A process separates components in the process stream by using a mechanical device to separate the solids from the liquids based on a density difference. The process produces the liquids and solids, which may be further processed to create valuable animal feed products.