16 results about "Desalter" patented technology

Systems and methods for crude oil desalting technology are provided. More specifically, systems and methods for the usage of waste heat from compression to treat high salinity water are provided. The systems and methods generate recycled water streams for desalter treatment. The systems and methods can treat high salinity waters from desalters and dehydrators. The high salinity streams are introduced to the compressed gas streams, where the waste heat causes the water portion of the water streams to evaporate, resulting in a fully or near-saturated gas stream and a concentrated waste water stream. The saturated gas streams are cooled and condensed, and low TDS water is separated from the gas stream in knockout drums. The low TDS water can be reintroduced to the desalting system as wash water, generating a circular water reuse.

The technology relates to the use of a high salinity produced water stream from a gas oil separation plant (GOSP), as a wash water stream for the desalter unit in a GOSP. The produced water stream is pretreated by a sequence of steps and subsequently desalinated by a ultra-high pressure reverse osmosis (UHP-RO) membrane. The UHP-RO produces a permeate stream and a reject stream. A portion of the permeate stream is reused as a wash water stream in the desalter unit of the GOSP.

Various methods and systems are disclosed, in one embodiment, including a method comprising: treating at least a plastic-derived pyrolysis oil in a desalter to at least form a desalted pyrolysis oil; heating the desalted pyrolysis oil; separating the desalted pyrolysis oil to form a gas phase and a liquid phase; steam cracking at least a portion of the first vapor phase in the presence of steam to form at least a cracked effluent; and separating the cracked effluent into at least an additional gas phase and an additional liquid phase.

A method and assembly for improving and maintaining a seal between an insulating rod and a flange in a desalter entrance bushing assembly. The assembly includes an insulating rod with a shoulder for a biasing component, a hub nut with a spring seat for a biasing component, a biasing component, and a flange to which the insulating rod can create a fluid tight seal. The shoulder and spring seat can form approximately 90-degree platforms on which the biasing component can apply force when the hub nut is appropriately secured to the flange. The method includes threading the hub nut containing the biasing component into the flange. The nut is secured to a predetermined torque and the biasing component ensures that the seal is maintained during temperature and pressure fluctuations.

A side-stream is separated from an oil phase stream that is discharged from a crude oil separator in a gas-oil separation plant. The side-stream contains water and oil. At least a portion of the oil phase stream that is discharged from the crude oil separator in the gas-oil separation plant is flowed to a desalter in the gas-oil separation plant. An electric field is applied across the side-stream to coalesce aqueous droplets present in the side-stream to form an aqueous phase. The aqueous phase is separated from the oil of the side-stream. At least a portion of the aqueous phase is evaporated to form a wastewater phase and a vapor phase. At least a portion of the vapor phase is condensed to produce a wash water. The wash water is flowed to the desalter. The wash water can be referred to washing water or dilution water.

Systems and methods including a gas-oil separation plant system including a high pressure production trap (HPPT) separator; a low pressure production trap (LPPT) separator; a dehydrator comprising a plurality of electrical or mechanical dehydrator grids; a desalter comprising a plurality of electrical or mechanical desalter grids; a stabilizer column; wherein a flow pipe interposes the HPPT, LPPT, dehydrator, desalter, and stabilizer column through which an emulsified crude oil is circulated for separation of liquid hydrocarbons and saline water therefrom; and one or more recirculation flowlines for recirculating a stabilized hot crude oil from the stabilizer column to one or more of the HPPT, LPPT, dehydrator, and desalter to (1) reduce or eliminate an amount of demulsifier chemical being introduced into the flow pipe, (2) remove adhered particles from one or both of the dehydrator grids and the desalter grids, or (3) a combination of (1) and (2).

A method for automating wash water rates into a desalter comprises the steps of collecting historical dry crude rates; collecting historical wash water rates; collecting historical salt content amounts, where the historical dry crude rates, historical wash water rates, and historical salt content amounts are from a historical time period; determining a percent wash water from the historical wash water rates and historical dry crude rates; developing a salt content versus percent wash water curve using the historical salt content amounts and percent wash water; developing a salt content predictive equation from the salt content versus percent wash water curve; programming the salt content predictive equation and the percent wash water equation into a distributed control system; and regulating a current wash water rate based on an expected salt content determined from the salt content predictive equation.

This disclosure relates to the method and system of cooling a pre-treated produced water stream in a gas oil separation plant (GOSP), using a heat integration concept. The pre-treated produced water stream is cooled by multiple heat exchangers arranged in series or in parallel. The cooled pre-treated produced water stream is desalinated to produce a permeate stream and a brine reject stream. The permeate and brine reject streams are used as the cooling media for the heat exchangers. This operates in a cyclic way, such that the permeate stream from the desalination unit heats up while cooling the pre-treated produced water. The heated permeate stream is used as a wash water stream for a desalter unit in the GOSP. This method reduces the reliance on an external fresh water source for the wash water stream and provides an energy efficient way of cooling the pre-treated produced water stream.

The invention relates to the technical field of ultrasonic desilting, and discloses an ultrasonic desilting and deoiling device which comprises an electric desalting tank, a finished oil tank is arranged on the rear portion of the electric desalting tank, a first reciprocating lead screw is arranged in the electric desalting tank, a heating precipitation mechanism is arranged in the electric desalting tank, and a second reciprocating lead screw is arranged in the heating precipitation mechanism. An ionization mechanism is arranged in the electric desalting tank, and a residue treatment mechanism is arranged at the bottom of the electric desalting tank, impurities in the electric desalting tank are vibrated off and separated through reciprocating movement of an ultrasonic pipe, so that the cost of subsequent manual cleaning of the device is saved, and the operation efficiency of the device is improved; when crude oil is not filtered, many impurities are doped in the crude oil, in order to facilitate transportation of the crude oil, the transverse rod rotates to drive the feeding stirring blades to rotate, so that the unfiltered crude oil in the feeding pipe is dredged and transported, and the situation that the crude oil is blocked in the feeding pipe, and consequently operation of the device is affected is prevented.

A system for removing salt from oil includes a vertically oriented desalting vessel, a crude oil entry located at a bottom of the desalting vessel in fluid communication with the top crude oil layer, a pair of electrode plates positioned vertically in the top crude oil layer, at least one ground plate inside the desalting vessel, a water outlet located on the bottom of the desalting vessel, and a treated oil outlet located at a top of the desalting vessel. A method for removing salt from crude oil includes providing a crude oil mixture into a vertically oriented desalting vessel, applying an electric field through a pair of electrode plates, collecting treated oil from a treated oil outlet located at a top of the desalting vessel, and collecting water from a water outlet located on the bottom of the desalting vessel in fluid communication with the bottom water layer.

The invention relates to the technical field of pure water production and treatment, in particular to high-purity pure water production and treatment equipment, and aims to solve the problems that existing pure water production equipment is poor in pretreatment effect, filtering efficiency and service life are difficult to balance, and impurities are inconvenient to collect. The equipment comprises a pretreatment box, a raw water tank, a filter tank, a reverse osmosis unit, a pure water tank and a deep desalter. Water storage, primary filtration and refiltration assemblies are arranged in the pretreatment box, multi-stage filtration of water is achieved by pushing a top plate, a filter plate, a filter cylinder and other structures, an electric push rod drives a transmission mechanism, the filter cylinder automatically rotates and bristles automatically clean, a waste box is stably connected with the pretreatment box through a positioning groove and a positioning column, replacement is convenient, and impurity leakage can be avoided. The equipment is high in filtering efficiency and long in service life, impurities are convenient to collect and treat, and reliable high-purity pure water can be provided for various fields.

The utility model relates to the field of wastewater desalination, in particular to a wastewater evaporation desalter, and adopts the technical scheme that the wastewater evaporation desalter comprises a heating base, an evaporation tank, a tank cover, a driving motor, a radiating fin plate, a storage tank, a gas collecting pipe and a plum blossom stirring rod, the evaporation tank is mounted on the inner wall of an outer frame, and a threaded groove is formed in the upper end of the outer frame in a penetrating manner; according to the device, the plum blossom stirring rod is driven by the driving motor to fully stir salt-containing wastewater in the evaporation tank, so that the effect and the efficiency of evaporating and heating the salt-containing wastewater in the evaporation tank by the heating base are improved in an auxiliary manner, and high-temperature steam in the evaporation tank can be introduced into the gas collecting pipe through the gas collecting pipe; and the high-temperature steam in the gas collecting pipe is quickly cooled by the radiating fin plate, so that the steam is condensed into water, and the condensed water falls into the storage tank due to the weight of the condensed water so as to lift, so that the steam is recycled.

This technology relates to the treatment of a produced water stream to promote water circularity in a gas oil separation plant (GOSP). A wash water unit supplies a wash water stream to a desalter to desalt the crude oil in a GOSP. The desalter effluent stream is pretreated to produce a pretreated desalter effluent stream. Simultaneously, an untreated produced water stream is processed in a water oil separator (WOSEP) of a GOSP. The WOSEP produces a produced water stream and a recovered oil stream after separation. A portion of the produced water stream is pretreated and mixed with the pretreated desalter effluent stream resulting in a mixed stream. The mixed stream is desalinated to produce a permeate stream and a reject stream. The permeate stream is reused as a wash water stream in the desalter. The reject stream is recycled to either the WOSEP inlet or WOSEP outlet.

The technology relates to the pretreatment process of a high salinity produced water stream in a gas oil separation plant (GOSP). The produced water stream includes a salinity of up to 150,000 ppm of total dissolved solids (TDS). The treated produced water stream is processed by a desalination unit integrated in the GOSP, to produce a permeate stream with less than 5000 ppm of TDS and a reject stream. The permeate stream is reused as a wash water stream in the desalter unit of the GOSP, to desalt the crude oil or use it for other beneficial reuse purposes.

A method and assembly for improving and maintaining a seal between an insulating rod and a flange in a desalter entrance bushing assembly. The assembly includes an insulating rod with a shoulder for a biasing component, a hub nut with a spring seat for a biasing component, a biasing component, and a flange to which the insulating rod can create a fluid tight seal. The shoulder and spring seat can form approximately 90-degree platforms on which the biasing component can apply force when the hub nut is appropriately secured to the flange. The method includes threading the hub nut containing the biasing component into the flange. The nut is secured to a predetermined torque and the biasing component ensures that the seal is maintained during temperature and pressure fluctuations.

This application relates to a desalter configuration integrated with a steam cracker. The disclosure of this application provides a method for producing light olefins. In one embodiment, the method includes pressurizing a hydrocarbon feed in one or more pumps to produce a pressurized hydrocarbon feed and heating the pressurized hydrocarbon feed in one or more heat exchangers to produce a heated hydrocarbon feed. The method includes mixing the heated hydrocarbon feed with water and separating the interstage hydrocarbon feed from the interstage water. The method includes mixing the interstage hydrocarbon feed with water and separating the desalted hydrocarbon feed from the outlet water. The method includes pyrolyzing the desalted hydrocarbon feed in a steam cracker.