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3286 results about "Oil separation" patented technology

An oil water separator (OWS) is a piece of equipment used to separate oil and water mixtures into their separate components.There are many different types of oil-water separator. Each has different oil separation capability and are used in different industries. Oil water separators are designed and selected after consideration of oil separation performance parameters and life cycle cost ...

Apparatus for separation of gas-liquid mixtures and promoting coalescence of liquids

Provided herein is a conditioning apparatus that includes a geometrical configuration having an inlet flow deceleration conduit and a cyclonic tube to effectuate both liquid-gas separation and droplet coalescence. The apparatus is typically positioned at the inlet of a separator vessel used for removing water and gas from extracted crude oil containing entrained water and gas. The apparatus promotes droplet coalescence and gas separation for mixed fluids flowing into an existing water and oil separation device.
Owner:SAUDI ARABIAN OIL CO

Air/oil separation system and method

A centrifugal air / oil separation system communicates with bearing cavities of the engine and substantially isolates separated oil from contacting the gearbox.
Owner:PRATT & WHITNEY CANADA CORP

Crude oil desulfurization

This invention relates to a crude oil desulfurization process which comprises hydrodesulfurizing a crude oil feed in a crude desulfurization unit. The desulfurized crude oil is then separated into a light gas oil fraction, a vacuum gas oil fraction and a vacuum residuum fraction. The vacuum gas oil is hydrocracked to form at least one low sulfur fuel product. The light gas oil fraction is hydrotreated. The vacuum gas oil may be hydrocracked in one or more stages. Hydrocracking in the second stage, if present, will convert of at least 20% of the first zone effluent, to create a low sulfur light gas oil fraction. The light gas oil fraction may then be hydrotreated.
Owner:CHEVROU USA INC

Edible spread composition and packaged product

An edible spread composition comprises a homogenous mixture of plant fiber-containing material, edible oil, water, and an effective amount of an emulsifier that prevents separation of oil from the plant fiber and other mixture solids that otherwise occurs in its absence when the edible spread composition is discharged while held under pressure. The edible spread composition may be, for instance, a peanut butter spread composition or a chocolate spread composition. There also is a packaged spread product comprising the edible spread composition that is held inside a pressurized container and dispensed without experiencing oil separation.
Owner:KRAFT FOODS GRP BRANDS LLC

Method for treating coking wastewater

The invention discloses a method for treating coking wastewater, which relates to the method for treating wastewater and aims to solve the problems that an activated sludge method for treating the coking wastewater has the disadvantage of relatively poorer effect on the removal of organic substances and the treated water is difficult to reach the secondary discharge standard of the Integrated Wastewater Discharge Standard (GB8978-96). The method comprises that: the coking wastewater is discharged after passing through an oil separation tank, an adjusting tank, an iron carbon-Fenton oxidation pond, an up-flow anaerobic sludge bed reactor, a multifunctional hydrolyzing pond, an anaerobic tank, a composite active sludge tank and a secondary sedimentation tank, wherein the coking wastewater can also pass through a floatation tank. The coking wastewater treated by the method of the invention has a pH value of 5 to 8 and the rate of removal of Cu2+ from the coking wastewater of 69 to 85 percent, contains 300 to 450mg / L phenol and less than 15mg / L cyanide and therefore reaches the secondary discharge standard of the Integrated Wastewater Discharge Standard (GB8978-96).
Owner:HARBIN INST OF TECH

Oil return control device, air conditioning system and oil return control method of air conditioning system

ActiveCN108180680ASolve the problem of excessive exhaust oil discharge rateReduced exhaust oil discharge rateMechanical apparatusFluid circulation arrangementOil separationAir conditioning
The invention discloses an oil return control device, an air conditioning system and an oil return control method of the air conditioning system. The oil return control device comprises an oil separation mechanism and an oil return control assembly, wherein the oil separation mechanism is arranged at an exhaust port of a lower row of exhaust cylinders in a compressor comprising two or more parallel cylinders, and is used for separating and obtaining lubricating oil from exhaust gas of the lower row of exhaust cylinders, and the oil return control assembly is arranged between the oil separationmechanism and an oil pool at the bottom of the compressor, and is used for controlling the lubricating oil to return to the oil pool according to the pressure difference between exhaust ports of thetwo or more exhaust cylinders in the compressor. According to the scheme, the defects that in the prior art, a lower cylinder is prone to wear, short in service life, low in running reliability and the like can be overcome, so that the beneficial effects that the lower cylinder is not prone to wear, long in service life and high in running reliability are achieved.
Owner:GREE ELECTRIC APPLIANCES INC

Method for directly liquefying coals with function of maximizing utilization of liquefied residues

The invention relates to a method for directly liquefying coals with a function of maximizing utilization of liquefied residues. The method comprises the following technical steps: preparing coal paste; carrying out hydrotreating and liquefaction on the coal paste; carrying out oil separation treatment on the obtained oil product; carrying out upgrading and hydrotreating on the obtained product; carrying out hot extraction on the residues and then carrying out solid-liquid separation on the residues; and recovering the solvent; and carrying out hydrotreating treatment on the mixture of heavy oils and asphalt materials so as to obtain the final product, then taking the heavy oils as recycled solvent to prepare the coal paste, and the like. The method provided by the invention has the advantages that because of organically combining the liquefaction process and the residue extraction, the utilization of liquefied residues is maximized, the conversion rate of coal is improved, the yieldsof light and middle oils subjected to coal liquefaction are improved by 10 to 60 percent, and the quality of oil is improved, thereby greatly enhancing the economic benefits of direct coal liquefaction plants and improving environment protection; and the method provided by the invention has important economic and social significances, and can widely be applied to the field of coal direct liquefaction.
Owner:CHINA COAL RES INST

Processing method for recycling electroplating concentrated control zone electroplating waste water resource

The invention relates to a processing method for recycling an electroplating concentrated control zone electroplating waste water resource, which comprises the following steps: firstly, preprocessing the inverted trough water in the electroplating production process, recycling valuable metals in the inverted trough water, and respectively filling the pretreated tail water in corresponding processing systems according to kinds; then, recycling copper, nickel and chromium resources in the corresponding processing system; afterwards, mixing other drain away water in a base station and the waste water with recycled copper, nickel and chromium resources, and then carrying out integrated structure breaking, neutralizing and coagulating sedimentation, and mixing the treated waste water and the pretreated water by treatment of oil separation, oil removal and coagulating sedimentation for biochemical treatment; and finally, discharging the effluent which reaches the standard. The method not only enables the electroplating waste water to reach the standard and can be discharged stably, but also recycles the valuable resources in the waste water in low cost, greatly reduces the secondary pollution and realizes the clean production of electroplating waste water control and the environmental requirements of the electroplating concentrated control zone.
Owner:ZHEJIANG HI TECH ENVIRONMENTAL TECH

Water and oil separation system

A separation system includes at least a hydrocyclone and one or more membranes. In another aspect, a separation system includes a membrane having graduated and / or asymmetrical pore sizes. A further aspect of a separation system includes an inner membrane, an outer membrane and a hydrocyclonic flow between the membranes.
Owner:BOARD OF TRUSTEES OPERATING MICHIGAN STATE UNIV

Preparing method of polyimide aerogels and hybrid aerogels thereof

The invention discloses a preparing method of polyimide aerogels and hybrid aerogels thereof, belonging to the field of aerogels. In the preparing of the polyimide precursor, the polyamic acid precipitated fiber having a large specific surface area is dissolved in an aqueous solution of triethylamine, then stirred and dissolved. And the thermal imidization is directly frozen and dried without a long sol-gel process to obtain the polyimide aerogels. At the same time, by introducing the filler with different functional characteristics, the functional diversity of polyimide hybrid aerogels is realized. The prepared hybrid aerogels can be used as flexible conductors, microstrip patch antennas, catalysts, water and oil separation membranes, high performance adsorbent materials, etc., and can be used in the fields of flexible wearable microelectronics, aerospace communications, photocatalysis and oil leakage, etc. The application scope of polyimide materials and aerogels materials is expanded, the value of products is enhanced, the preparing cycle is shortened, and its industrialization process is promoted.
Owner:BEIJING UNIV OF CHEM TECH

Coal chemical industry high-concentration wastewater treatment method and apparatus

The invention provides a coal chemical industry high-concentration wastewater treatment method and an apparatus which can solve the problems of low flux and high membrane pollution when an MBR (membrane bioreactor) is used for coal chemical industry wastewater treatment in the prior art. The coal chemical industry high-concentration wastewater treatment apparatus comprises an oil separation device, a flocculation reaction device communicated with the oil separation device, an ultra-micro air flotation device communicated with the flocculation reaction device, an advanced oxidation device communicated with the ultra-micro air flotation device, a hydrolysis and acidification device communicated with the advanced oxidation device, a denitrification device communicated with the hydrolysis and acidification device, an anoxic device communicated with the denitrification device, and an aerobic MBR device which comprises a plurality of MBR membranes arranged in the aerobic MBR device and is communicated with the anoxic device. The coal chemical industry high-concentration wastewater treatment method and the device provided by the invention have the beneficial effects that the pretreatment is complete, the subsequent treatment difficulty is low, and the biochemical treatment effect is ensured so as to be favorable for reducing membrane pollution; in addition, the cleaning frequency of the membranes is low and the service life is long; and furthermore, the MBR outlet water is stable, suspended matters are avoided, and the deep treatment effect can be further ensured.
Owner:GO HIGHER ENVIRONMENT GRP CO LTD

Method for treatment of waste emulsion

The invention discloses a method for the treatment of waste emulsion, more particularly a method for the treatment of waste emulsion generated in the machining processes such as cutting, grinding and the like. The method comprises the following steps: separation of stored emulsion breakers, mechanical air flotation, ion-carbon electrolysis, coagulating sedimentation, oil separation with inclined plate, microorganism purification, sedimentation, sand filtering, etc.; the method has the advantages of simple technology and standard-reaching wastewater, and devices for the implementation of the method have small floor area, little investment, low running cost, low energy consumption, maximal recycling of waste oil resource and prominent operability and is widely suitable for machining and the treatment of waste emulsion in other industries. The waste oil recycled according to the method is completely capable of being used for the production of patented product, the protective grease, thus idealized application of resources is achieved.
Owner:成都蜀光石油化学有限公司

Method for treating acid-washing wastewater and metallic ions in iron and steel industry

The invention provides a method for treating acid-washing wastewater and metallic ions in iron and steel industry, which comprises steps as follows: acid-washing wastewater naturally flows into a water collecting well and enters a preneutralization filter chamber under the elevation action of a pump, the preneutralization filter chamber is provided with 10-200mm limestone which is in a graded distribution mode, and after the acid-washing wastewater is preneutralized by the limestone, the pH value of the effluent water is controlled at 5-6, wherein the method provided by the invention greatly lowers the chemical expenses and operating cost as compared with the conventional method of directly adding an alkali solution; the acid-washing wastewater, which is subjected to initial pH value regulation, naturally flows into an oil separation regulating chamber, so that iron ions in the wastewater react with the alkali solution to form a precipitation mixture of ferric hydroxide, zinc hydroxide and the like; and the wastewater is elevated into a membrane solid-liquid separator to complete solid-liquid separation, so that the wastewater can be discharged after reaching the standard. The invention thoroughly solves the problems that the precipitate can not easily settle, the iron can not be easily removed, and the iron ions are dissolved out. The invention has the advantages of simple technique, high economy, low requirements for technical levels of workers, and high controllability, is reliable to operate, and has wide market prospects.
Owner:TIANJIN ACADEMY OF ENVIRONMENTAL SCI

Switchable two-stage and cascade marine energy-saving ultralow-temperature refrigeration system

The present invention discloses a switchable two-stage and cascade marine energy-saving ultralow-temperature refrigeration system which comprises a high-temperature level refrigeration system, a low-temperature level refrigeration system, a hot fluorine defrosting system of a high-temperature level air cooler and a hot fluorine defrosting system of a low-temperature level air cooler. The hot fluorine defrosting system of the high-temperature level air cooler comprises a high-temperature level compressor of which the outlet is divided into two paths through a first oil separator; and the second path is connected with an air suction port of the high-temperature level compressor through a first solenoid valve, the high-temperature level air cooler, a third solenoid valve, a first pressure relief valve, a first gas-liquid separator, a first one-way valve and a first heat regenerator. The hot fluorine defrosting system of the low-temperature level air cooler comprises a low-temperature level compressor of which the outlet is divided into two paths through a precooler and a second oil separator; and the second path is connected with an air suction port of the low-temperature level compressor through an eighth solenoid valve, the low-temperature level air cooler, a sixth solenoid valve. a second pressure relief valve, a second gas-liquid separator, a third one-way valve and a second heat regenerator. The present invention has the obvious effects of large refrigeration section, high cooling rate, good energy-saving effect and thorough defrosting.
Owner:SHANGHAI OCEAN UNIV

Preparation method of modified graphene enhanced polyurethane sponge used for oil-water separation

The invention relates to the field of high molecular materials, in particular to a preparation method of modified graphene enhanced polyurethane sponge used for oil-water separation. Polydopamine modified graphene is adopted, superhydrophobic modified graphene powder is prepared through Michael addition reaction of low-surface-energy substances of 1H, 1H, 2H, 2H-perfluorodecyl mercaptan and the like with polydopamine, the superhydrophobic powder is loaded on the market polyurethane sponge, and the superhydrophobic / oleophylic oil-water separation is obtained. The preparation method is simple in operation, the prepared modified graphene enhanced polyurethane sponge can rapidly adsorbed oil and various organic solvents on the water or even under water, and efficient water-oil separation is realized; the sponge can be recycled by an extrusion deoiling method; the preparation method has the advantages of high operability, low cost, good repeatability and the like; scale production can be performed, and the preparation method is hopefully applicable to removal of water body oil pollutants to alleviate enormous pressure of ecological environment.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
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