49 results about "Water oil emulsion" patented technology

A method for demulsifying water-oil emulsions through ultrasonic action, comprises a step of making the water-oil emulsions flow through at least one ultrasonic acting region in a flow direction, wherein: within the ultrasonic acting region, a concurrent ultrasonic wave whose traveling direction is the same as the flow direction of the water-oil emulsions is generated by at least a one first ultrasonic transducer provided at the upstream end of the ultrasonic acting region, and at same time, a countercurrent ultrasonic wave whose traveling direction is opposite to the flow direction of the water-oil emulsions is generated by at least a one second ultrasonic transducer provided at the downstream end of the ultrasonic acting region; and the concurrent ultrasonic wave and the countercurrent ultrasonic wave act simultaneously on the water-oil emulsions which flow through the ultrasonic acting region, so as to demulsify the water-oil emulsions. After being demulsified, the water-oil emulsions gravity settle and separate, or settle and separate under an electric field, so as to be dewatered. The present invention can apply to various water-oil separating technologies in the procedures from mining to processing of crude oil.

The control of emissions from fossil-fired boilers wherein an injection of substances above the primary combustion zone employs multi-layer feedforward artificial neural networks for modeling static nonlinear relationships between the distribution of injected substances into the upper region of the furnace and the emissions exiting the furnace. Multivariable nonlinear constrained optimization algorithms use the mathematical expressions from the artificial neural networks to provide the optimal substance distribution that minimizes emission levels for a given total substance injection rate. Based upon the optimal operating conditions from the optimization algorithms, the incremental substance cost per unit of emissions reduction, and the open-market price per unit of emissions reduction, the intelligent emissions controller allows for the determination of whether it is more cost-effective to achieve additional increments in emission reduction through the injection of additional substance or through the purchase of emission credits on the open market. This is of particular interest to fossil-fired electrical power plant operators. The intelligent emission controller is particularly adapted for determining the economical control of such pollutants as oxides of nitrogen (NOx) and carbon monoxide (CO) emitted by fossil-fired boilers by the selective introduction of multiple inputs of substances (such as natural gas, ammonia, oil, water-oil emulsion, coal-water slurry and/or urea, and combinations of these substances) above the primary combustion zone of fossil-fired boilers.

A process using supercritical water-oil emulsion to upgrade a heavy hydrocarbon feedstock into an upgraded hydrocarbon product or syncrude with highly desirable properties (low sulfur content, low metals content, lower density (higher API), lower viscosity, lower residuum content, etc.) is disclosed. The process does not require external supply of hydrogen nor does it use externally supplied catalysts.

A dynamic water/oil demulsification system for a gas-oil separation plant (GOSP) includes:

• • an in-line microwave treatment subsystem upstream of one or more of each of a dehydrator vessel, desalter vessel and/or water/oil separator vessel, each of which vessels receives a water-oil emulsion;
  • sensors that monitor and transmit data corresponding to properties of the water-oil emulsion in or downstream of the respective vessel(s); and
  • a processor/controller associated with the in-line microwave treatment subsystem that initiates the application of microwave energy to the emulsion(s) based on the data from the sensors.

The invention discloses a automatic energy-saving purification filter, its characteristics are that, at least two filter core, a change fluid set in the filter with roof of filter core constitute active cavity, through-hole on the roof of filter core, the active cavity through through-hole connect the cavity of filter core and through the back flow channel pass transferpump connect the enter fluid port. Based on no change of original tube and setting position, the invention used the spinning of the change fluid achieve fuel filtration and recoil washing function, which is a revolutionary improvement of the traditional electromechanical switch teams filter automatically filter with intermittent operation, the machine operator no more worry about removing filter core, fuel saving and environmental protection, science and simple structure, reducing the automatic filter manufacturing costs. The present invention can also make watered-oil emulsion, the use of emulsified oil in the middle operating condition saved about 5%, reducing harmful gases and soot particulate emissions above 30%, significant social and economic benefits.

Methods are generally provided for forming a membrane. In one embodiment, the method includes: dispersing GO nanoparticles in a solvent; depositing the GO nanoparticles on a support to form a GO membrane; and reducing the GO membrane to form a rGO membrane. Also provided is the rGO membrane formed from such methods, along with a plurality of stacked rGO layers. Methods are also provided for separating water from a water/oil emulsion by, for example, passing water through the rGO membrane.

The invention discloses a preparing method of high-performance graphene oxide/halloysite nanotube composite water-oil separation film. The preparing method is characterized by comprising the steps of firstly preparing lamella graphene oxide through an improved Hummer method, purifying a halloysite nanotube through acid treatment, then mixing the lamella graphene oxide and the halloysite nanotube into a composite solution, and then adopting a vacuum filtration method to make the composite solution into film through suction filtration to prepare the graphene oxide/halloysite nanotube composite water-oil separation film. In the prepared high-performance graphene oxide/halloysite nanotube composite water-oil separation film, the halloysite nanotube is introduced, the water flux can be greatly increased, and the anti-dirt performance is improved at the same time; meanwhile, the high-performance graphene oxide/halloysite nanotube composite water-oil separation film has a good separation effect on water-oil emulsion.

The invention relates to a treatment system and a method for drilling fluid waste, in particular to an electromagnetic treatment system and a method for oil base drilling fluid waste. Comprehensive thermal effect of light wave, electromagnetic wave and microwave is utilized for demulsification separation of water-oil emulsion in oily sludge, drying, dewatering and vaporization of waste oil, and resource utilization of oil, water and residue can be realized. Oil contents in drilling cuttings and waste are decreased under two percent, and the national standards are reached. The pollution problem of oil base drilling fluid waste is elegantly resolved on the one hand, and the waste of oil base drilling fluid or synthetic base is reduced on the other.

The dock vessel has the tow compartment for placement of tug-boats, and technological compartment. The technological compartment is made as a hangar at the bottom of which a central channel is located, along its upper boundaries, the rack-ledges with symmetrical location to the right and left, toward the hull, are placed on which the technological equipment for the water-oil emulsion treatment is placed. Between the dock-vessel hull walls and side walls of the central channel, the containers for collection of the emulsified oil are placed. The central channel of the technological compartment is equipped with, at least, two bulkheads in which, the hermetically pluggable openings located at different levels are made. The floating boom is made as the sectional net sleeve filled with elastic porous adsorbent and provided with positive buoyancy in the top edge of doubled net forming the net sleeve and negative buoyancy at its lower edge.

The group of inventions relates to the field of organic chemistry and can be used for cleaning water, industrial and domestic waste water or waste water sediment, and for the containment and recovery of petroleum and petroleum product spills in large bodies of water, rivers, lakes and seas. In the claimed group of inventions, aqueous solutions of polysaccharide microgels, having a molecular mass of 20000-200000 daltons and a particle size of 50-600 nm, are used as a substance for cleaning water of petroleum and petroleum products. Moreover, low concentrations of polysaccharide microgels in water, ranging from 0.1 to 20 g/l, are used. Said solutions are used as a surface modifier for a filter used in separating water-oil emulsions, as a sorbent for the containment and recovery of oil spills in an aqueous medium, and also as a coagulant for the cleaning of water polluted by petroleum and petroleum products. The technical result is in making it possible to recover a commercial product, recovered during the process of cleaning water of petroleum or petroleum products, and to recover the starting substance for the reuse thereof, while simultaneously simplifying the slurry utilization process.

Trace element levels of heavy metals in crude oil are reduced by contacting the crude oil with an oxidizing agent, extracting heavy metals into a water phase for subsequent separation from the crude oil. The oxidizing agent is selected from the group of hydroperoxides, organic peroxides, inorganic peracids and salts thereof, organic peracids and salts thereof, and ozone. In one embodiment, the oxidizing agent converts heavy metals into the heavy metal cations in a water-oil emulsion, which can be subsequently separated from the crude oil, for a treated crude oil having reduced levels of heavy metals. In one embodiment, at least a complexing agent can be added to facilitate the removal by forming soluble heavy metal complexes in the water phase.

An oil-in-water emulsion includes, for 100 wt % thereof: a) 0.1 to 10 wt % of an emulsifying system including, for 100 wt % thereof: (i) 5 to 95 wt % of the mixture of the reaction products of a reducing sugar and 1,12-octadecanediol essentially consisting of hydroxyl-octadecyl polyglycosides of formula (I): HO—R—O-(G)_n-H (I) and of polyglycosyl octadecyl polyglycosides of formula (II): H-(G)_m-O—R—O-(G)_p-H (II), where, in formulas (I) and (II), G is the remainder of the reducing sugar and R is the divalent radical octadecane-diyl-1,12, and where n, m and p, identical or different, each are, independently of each other, a decimal number between 1 and 5; (ii) 95 to 5 wt % of 1,12-octadecanediol; b) 0.01 to 5 wt % of at least one thickening and/or gelling agent; c) 10 to 50 wt % of an oil phase; and d) 89.89 to 35 wt % of an aqueous phase.

The invention relates to a coalescence material for emulsified water as well as a preparation method and application of the coalescence material. The coalescence material for the emulsified water includes a substrate and a fluorine-containing polyurethane coating layer coating the surface of the substrate. The fluorine-containing polyurethane coating layer of the coalescence material contains a hydrophobic fluorine-containing chain segment and a hydrophilic chain segment, thereby having hydrophobic and lipophilic characteristics in the air; the contact angle between the fluorine-containing polyurethane coating layerandwater drops is 100-120 degrees, the contact angle between the fluorine-containing polyurethane coating layerandoil drops is 50-80 degrees, the contact angle of water under oil changes dynamically and decreases from 120-150 degrees to 50-80 degrees within 2 min, so that favorable conditions are provided for demulsification mixingof liquid drops in a water-oil emulsion, andcompared with other fluorocarbon materials in the prior art, the coalescence material provided by the invention has a significantly better coalescence and separation effect on the emulsified water; and the coalescence material is suitable for the separation of the water-oil emulsion containing different types and different concentrations of surfactants, and the water-oil separation efficiency isas high as 91-98%.

The invention discloses a nanofiber membrane coated with polymethylsilicate for water-oil emulsion separation and a preparing method thereof. The method includes the following steps of preparing a polymer solution, preparing a nanofiber membrane through static spinning, soaking the prepared nanofiber membrane in a potassium methyl silicate solution, adjusting the pH of the solution to be about 7 with acid under the ultrasonic condition, and conducting drying to prepare the nanofiber membrane coated with polymethylsilicate. The surface of the nanofiber membrane is coated with a layer of polymethylsilicate, so emulsified water-oil drops can be broken during water-oil filtering, and the water-oil separation efficiency and the repeated utilization rate are increased; on the other hand, the surfaces of nanofiber are coated with polymethylsilicate, so the use intensity of the filtering membrane is improved; the preparing method has the advantages of being easy to operate, low in cost, easy to control in the process and the like.

The invention relates to the technical field of static coalescers, in particular to a plate electrode static coalescer.The late electrode static coalescer is characterized in that the upper portion of the coalescer is a high-voltage electricity input section, the lower portion of the coalescer is a coalescing section, the high-voltage electricity input section is provided with an observation chamber made of insulating organic glass, the upper end of the observation chamber is provided with a high-voltage insulating wire inlet, the bottom of the observation chamber is provided with an insulating wiring groove, a stainless steel shell is arranged below the observation chamber, the shell and an insulating electrode and a bare electrode which are located in the shell form the coalescing section, and the insulating electrode is connected with the high-voltage end of an external transformer through the insulating wiring groove and the high-voltage insulating wire inlet.The plate electrode static coalescer has the advantages that the speed of water-oil emulsion passing the coalescer becomes low, the staying time of the water-oil emulsion in an electric field becomes long, large electric field force effect is achieved, water drops in oil sufficiently collide and coalesce and are combined into large particles which are then settled, and oil-water separation efficiency is increased.

Relating to the technical field of crude oil corrosion prevention technologies, the invention discloses a test method for the stability of water in crude oil, and solves the problems of great difference between the test result and actual operating conditions, poor reproducibility and the like in existing oil film microscopic observation method for testing the water content of crude oil. The test method for the stability of water in crude oil specifically includes the steps of: employing a high speed centrifuge to dehydrate to-be-tested crude oil; weighing the dehydrated to-be-tested crude oil, and adding the dehydrated to-be-tested crude oil into a test bottle; adding deionized water into the to-be-tested crude oil to form an oil-water mixed solution; stirring the mixed solution for 24h by magnetic stirring to form a stable water-oil emulsion to serve as the test fluid; conducting standing for 24h, employing an ultrasonic oscillator to simulate crude oil storage and transport conditions, and carrying out dehydration operation on the test fluid; testing the electrical characteristics of a test bottle bottom solution by a test electrode, and judging whether water precipitates.