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1068results about "Non-miscible liquid separation" patented technology
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System for reducing acid value of hydrolysate in separation and washing process of dimethyl dichlorosilane hydrolysate
The utility model relates to a system for reducing the acid value of hydrolysate in the separation and washing process of dimethyl dichlorosilane hydrolysate. Comprising three stages of coalescers, dimethyl dichlorosilane acidic hydrolysate enters the system from the first stage of coalescer, process water enters the system from the third stage of coalescer, the acidic hydrolysate and diluted hydrochloric acid or process water are mixed in each stage of coalescer, oil-water two-phase separation is completed through multiple times of washing and coalescence, and meanwhile the acid value of the hydrolysate is reduced; each stage of coalescer comprises two static mixers connected in series, a group of prefilters and a large coalescer, the coalescer is Z-shaped, and four stages of filter elements are arranged in each stage of coalescer. Through repeated tests, a modified polyvinylidene fluoride filter element of Pall Company is finally selected, and after continuous three-stage coalescer treatment, the acid value of dimethyldichlorosilane hydrolysate can be reduced to 10 PPM or below.
Owner:HUBEI XINGRUI SILICON MATERIAL CO LTD
Janus super-wettability gradient pore structure cellulose aerogel material for efficient seawater desalination and oil-water separation
The invention discloses a Janus super-wettability gradient pore structure cellulose aerogel material for efficient seawater desalination and oil-water separation as well as a preparation method and application of the Janus super-wettability gradient pore structure cellulose aerogel material. According to the aerogel material, a self-assembled gradient pore structure is matched with a high-strength bio-based skeleton formed by chemical crosslinking, an enhanced chemical crosslinking-physical strengthening network structure is formed, and finally solution replacement and normal-pressure drying are performed in absolute ethyl alcohol to obtain the aerogel material. Under the support of a chemical crosslinking effect and a gradient pore physical structure formed by self-assembly of the material, the integrity and mechanical strength of the pore wall of the obtained material are ensured, and meanwhile, in the aerogel preparation and modification process of PVA, PEI and MTMS, the material has excellent upper and lower double-layer super-hydrophobic and super-hydrophilic asymmetric wettability; therefore, the composite material has efficient oil-water emulsion separation performance, lasting super-hydrophilic / underwater super-oleophobic stability, excellent mechanical performance and seawater desalination treatment performance in a high-salinity environment.
Owner:FUZHOU UNIV
Standpipe recirculation systems for material removal machines
Provided are a recirculation system (200) for a material removal machine (102) and a material removal system (100). A material removal system (100) includes a recirculation system (200) in fluid communication with a material removal cabinet (104) housing a material removal machine (102). The recirculation system (200) may have an upper reservoir (300) configured to drain fluid into a lower reservoir (204) before recirculating the fluid. The upper reservoir (300) may have a standpipe (320) configured to allow swarf, debris, and / or other material within the fluid to be entrained prior to flowing over the standpipe (320).
Owner:ILLINOIS TOOL WORKS INC
Porous bio-based polymer microsphere as well as preparation method and application thereof
PendingCN120623735AOther chemical processesPharmaceutical non-active ingredientsEndcappingPolymer chemistry
The invention provides a porous bio-based polymer microsphere as well as a preparation method and application thereof. The porous bio-based polymer microsphere provided by the invention comprises a mixture of a bio-based high-molecular polymer P1 and a bio-based block copolymer P2, wherein the bio-based block copolymer P2 is a bio-based block copolymer of which the end-capped group at one end is a hydrophilic group and the end-capped group at the other end is a hydrophobic group. The porous microspheres are prepared by adopting a method of combining condensation phase separation, solvent replacement and solvent volatilization, the obtained microspheres are uniform and stable, the pelletizing rate of the microspheres is nearly high, the yield is high, and subsequent screening is not needed; the process is simple, and the difficulty in operation and control of the process caused by introduction of multiple water phases / oil phases is reduced.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1
A method for purification of liquefied waste plastics using recycled aqueous stream
PendingUS20260015548A1Treatment with plural serial refining stagesLiquid hydrocarbon mixture productionAlkaline earth metalProcess engineering
The present disclosure relates to a method for processing of liquefied waste plastics (LWP). The method includes subjecting a liquefied waste plastic-based feedstock to heat treatment (HT processing) in an aqueous solution containing alkali metal hydroxide and / or alkaline earth metal hydroxide to form a heat treated effluent, transferring the heat treated effluent to a separator, subjecting the heat treated effluent to phase separation to isolate at least an oil phase including treated LWP and an aqueous phase including contaminated material, and recycling at least a part of the aqueous phase back to the HT processing.
Owner:NESTE OYJ
Modified separation membrane and preparation method and application thereof
The application relates to a modified separation membrane in the technical field of membrane materials, a preparation method and application thereof. The modified separation membrane comprises a base film and a nanostructure layer on the upper surface of the base film and the membrane hole surface close to one side of the upper surface of the base film; wherein the pore size of the base film is 120-400 mu m; the nanostructure layer is composed of microparticles with a size of 100-1000 nm; the preparation method comprises 3D printing of the separation membrane; and the upper surface of the separation membrane and the membrane hole surface close to one side of the upper surface of the separation membrane are subjected to plasma treatment. The modified separation membrane preparation method combines the 3D printing technology and the membrane separation technology, improves the traditional membrane preparation process, finds a more optimal membrane replacement process, and the modification method is free of chemical agents, has the advantages of being more convenient and fast to operate, high in separation efficiency, low in processing cost, green and pollution-free, and the like, and has important significance in the aspects of membrane separation technology improvement and application of oily wastewater treatment.
Owner:ZHEJIANG NORMAL UNIV
Preparation method of Joule heat-assisted super-wetting metal net, metal net with super-hydrophilic performance and metal net with super-hydrophobic performance
PendingCN121606927AFatty/oily/floating substances removal devicesNon-miscible liquid separationEmulsionCarbon nanotube
The invention provides a preparation method of a Joule heat-assisted super-wetting metal net, a metal net with super-hydrophilic performance and a metal net with super-hydrophobic performance. According to the material, carbon nanotubes are firmly adhered to the surface of a metal net through polydopamine mediation to construct a micro-nano coarse structure, a hydrophobic alkyl compound is grafted through a sulfenyl three-component coupling reaction to reduce surface energy, and a super-hydrophilic / underwater super-oleophobic metal net and a super-hydrophobic metal net are prepared respectively. The Joule heating effect of the material is remarkably enhanced by introducing the carbon nanotubes, so that the temperature of the material can be rapidly increased to 100 DEG C or above within 20 seconds under the ultralow voltage of 2.0 V. The characteristic can be effectively used for in-situ heating viscosity reduction of high-viscosity crude oil, continuous and efficient oil-water separation is achieved in a double-channel separation device, the crude oil flux reaches up to about 3985 L.m <-2 >. H <-1 >, and the separation efficiency exceeds 98.6%. The method is also suitable for stainless steel meshes with micron-sized apertures, and can realize efficient separation of various crude oil emulsions.
Owner:XINJIANG TECH INST OF PHYSICS & CHEM CHINESE ACAD OF SCI +1
Integrated evaporation device applied to carbonyl synthesis process
The utility model relates to an integrated evaporation device applied to a carbonyl synthesis process, which comprises a catalyst material mixer, a coalescence separator and a combined evaporator, a catalyst material feeding pipe is arranged above the front part of the coalescence separator, a water-phase material discharging pipe is arranged at the middle position below the middle part of the coalescence separator, and a water-phase material discharging pipe is arranged below the water-phase material discharging pipe. A liquid-phase material discharge port is formed in the bottom of the combined evaporator, a water-phase material discharge pipe of the coalescence separator and the liquid-phase material discharge port of the combined evaporator are connected in parallel through a connecting pipeline and then are communicated with the input end of the catalyst material mixer through a playback pump, and through the technical scheme, the activity of a catalyst is effectively improved; the problem of equipment blockage in continuous production is solved, and a catalyst-containing water-phase material generated by the coalescence separator and a catalyst-containing liquid material generated by the combined evaporator are recycled, so that the utilization rate of the catalyst is greatly improved, the loss of the catalyst is effectively reduced, the operation cost is reduced, and production and income are increased.
Owner:SHANDONG HUALU HENGSHENG CHEM IND
Single cell protein process and product
This disclosure describes methods to separate solids from liquids in a production facility. A process separates components in the process stream by applying non-condensable media to create density differences and then using a mechanical device to separate the solids from the liquids based on the density difference. The process produces the liquids and solids, which may be further processed to create valuable animal feed products.
Owner:ICM INC
Cellulose-based cationized carbon nanofiber / cyclodextrin composite demulsifier as well as preparation method and application thereof
PendingCN120605529AWaste water treatment from quariesFatty/oily/floating substances removal devicesCelluloseNanofiber
The invention discloses a cellulose-based cationized carbon nanofiber / cyclodextrin composite demulsifier. The cellulose-based cationized carbon nanofiber / cyclodextrin composite demulsifier is obtained by sequentially carrying out cyclodextrin modification and cationized modification on cellulose-based carbon nanofibers. The preparation method comprises the following steps: firstly, taking biomass cellulose as a raw material, and sequentially carrying out chemical grafting modification, high-pressure homogenization treatment and hydrothermal reaction to prepare cellulose-based carbon nanofibers; then promoting the reaction between the cellulose-based carbon nanofibers and the natural cyclic oligosaccharide cyclodextrin under an ultrasonic condition, and improving the wettability and interfacial activity of the cellulose-based carbon nanofibers; finally, cyclodextrin is modified by utilizing a cationization reagent, so that the surface of cyclodextrin carries a large amount of positive charges, the interfacial activity of the carbon nanofibers is further enhanced, softening of an interfacial film is promoted, the stability of oil drops is reduced, and the demulsification efficiency is effectively improved. The composite demulsifier has the advantages of being small in dosage, low in demulsification temperature, high in demulsification efficiency, easy to degrade and the like, and the related preparation method is simple, environmentally friendly and suitable for application and popularization.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +1
Method for extracting and separating polyether polyol in waste salt slag by water-based method
The invention relates to a method for extracting and separating polyether polyol in waste salt slag by a water-based method, and belongs to the technical field of separation and purification. The method comprises the following steps: (1) slurrying extraction: mixing polyether polyol salt slag with water according to a certain mass ratio, and carrying out slurrying extraction under a stirring condition to obtain oil-water-salt mixed slurry; (2) performing centrifugal separation to obtain an oil-water mixture rich in polyether polyol; (3) demulsifying and layering to obtain a polyether polyol phase; and (4) refining and purifying: dehydrating the polyether polyol phase to obtain a recycled polyether polyol product. According to the method, water is used as an extraction solvent, so that the use of toxic and flammable organic solvents is completely avoided, the safety and health hidden dangers are fundamentally eliminated, and secondary organic pollution is avoided. By optimizing parameters such as the temperature and the liquid-solid ratio of extraction water and combining centrifugal separation, the polyether polyol can be efficiently extracted and separated from the thick salt slag, and the recovery rate can reach 95% or above.
Owner:山东辰升新材料有限公司
A device and method for removing grease from extraction-coupling waste alkali solution
ActiveCN119612673BFatty/oily/floating substances removal devicesSpecific water treatment objectivesFiberFiltration
This invention relates to a device and method for removing grease from waste alkali solution through extraction-coalescing coupling. The device comprises a Y-flange filter, a micro-mixing extractor, an axial coalescing filter, a horizontal coalescing separator, and a settling tank. In the micro-mixing extraction module, the waste alkali solution and extractant are micro-dispersed and intensified in the mixture to improve grease extraction efficiency. After coalescence and demulsification by oleophilic / hydrophilic particles and fibers within the axial coalescing module and the horizontal coalescing separator, oil and water phases are separated in the settling zone. Suspended solids in the mixture are intercepted in the filtration module; the oil phase floats to the top and is periodically discharged. By introducing an extraction-coalescing coupling process, combined with the enhanced mixing of micro-extraction and the demulsification function of hydrophilic / hydrophobic particles, efficient removal of various oils from waste alkali solution is achieved. This invention has a compact structure and is widely applicable to the treatment of wastewater with high oil content and suspended solids, as well as the extraction treatment of high-concentration organic wastewater, especially complex wastewater containing high-viscosity oils.
Owner:EAST CHINA UNIV OF SCI & TECH +1
Oil-water separation system
PendingCN121177805ALiquid separation auxillary apparatusFatty/oily/floating substances removal devicesOil waterSewage
The present invention relates to the technical field of oil-water separation, and particularly discloses an oil-water separation system, which comprises: a submersible pump configured to pump oil-containing sewage; an inlet of the solid-liquid separator is communicated with an outlet of the submersible pump; the oil-water separation equipment comprises a mother pipe communicated with an oil-water outlet of the solid-liquid separator, a plurality of oil-water separation units and a connecting pipe, and each oil-water separation unit comprises a liquid inlet pipe, a first stop valve mounted on the liquid inlet pipe, an oil-water separator, a liquid outlet pipe and a second stop valve mounted on the liquid outlet pipe; inlets of the oil-water separators are communicated with an outlet of the main pipe through liquid inlet pipes, water outlets of the oil-water separators are communicated with the liquid outlet pipes, the connecting pipes are used for communicating two adjacent oil-water separators, and third stop valves are mounted on the connecting pipes. According to the oil-water separation system, the oil-water separation paths of the multiple water separation units are controlled, so that the separation requirements of different scenes can be met.
Owner:INNOVATION & INNOVATION CENT OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +2
Three-phase separation equipment for oil sludge, sand and water in oil field
The invention relates to the field of oil field oil sludge treatment equipment, in particular to oil field oil sludge sand-water three-phase separation equipment, which comprises a pretreatment tank body, a rotary stirring shaft rotatably mounted in the tank body, a bottom bracket and a top bracket fixed on the shaft, and a plurality of stirring pipe sleeves with dosing holes arranged between the brackets; a chemical adding control system is further arranged and connected with the stirring shaft, the support and the stirring pipe sleeve, and the chemical adding position, the chemical adding speed and the hardening and tempering temperature can be cooperatively regulated and controlled through a normalization algorithm according to real-time data such as the oil sludge liquid level and the oil content; according to the invention, uniform diffusion and precise effect of liquid medicine are realized, demulsification and flocculation efficiency is maximized, consumption of the liquid medicine is obviously reduced, residual liquid medicine in a pipeline can be cleaned, long-term stable operation of equipment is guaranteed, a good foundation is laid for subsequent three-phase separation, and the overall treatment effect is improved.
Owner:ZHANJIANG OUTAI OIL & GAS TECH SERVICE CO LTD
Methods and systems for organic recovery in solvent extraction
PCT designated stageWO2025217025A1Gas treatmentCentrifugal force sediment separationAqueous solutionSolvent extraction
A device for recovering entrained organic particles from an aqueous solution is provided. The device comprises a tank configured to receive a mixed solution through an inlet, wherein the mixed solution comprises an aqueous solution and organic particles, a plurality of curved impellers configured to impel a torque on the mixed solution, wherein in response to receiving the torque the mixed solution moves in a rotational motion within the tank, a deflector wall coupled to the floor extending vertically from the floor and surrounding the plurality of curved impellers to form an inner well configured to direct a flow of the rotating mixed solution towards a top surface of the tank, and a skim launder coupled to a boundary wall of the tank and positioned at the top surface, wherein the skim launder is configured to recover organic particles from the tank as they separate from the aqueous solution.
Owner:FREEPORT MCMORAN INC
Oil-water separation device and method for separating oil phase
PendingCN121177804AFatty/oily/floating substances removal devicesNon-miscible liquid separationFluid phaseSewage
The invention provides an oil-water separation device which comprises a sewage pool containing an oil-water mixture and a separation mechanism connected with the sewage pool through a liquid inlet pipe, and the separation mechanism comprises at least one upper floating column and an injection pipe arranged on the upper floating column and used for feeding solid particles. The oil discharging pipe is arranged above the injection pipe, and the solid particles and an oil phase in the oil-water mixture can form a light flocculus adhering body floating on the surface of a liquid phase.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1
Non-distillation regeneration device and system thereof
The present invention relates to the technical field of waste lubricating oil treatment, and discloses a non-distillation regeneration apparatus and system, the non-distillation regeneration apparatus comprises: a high pollution lubricating oil pretreatment unit for removing water and other large particle impurities in waste oil; the electro-adsorption unit is used for capturing pollutants such as polar oxides and colloids in oil by adopting a porous conductive framework under the action of a direct-current electric field; the molecular filtering unit is used for carrying out cross-flow filtering by utilizing a ceramic membrane assembly and removing macromolecular non-ideal components; the deep purification unit is filled with a composite adsorbent to further purify the base oil, and the final product quality is ensured. By means of the innovative electro-adsorption refining filter and the multi-stage collaborative purification process, efficient regeneration of the waste lubricating oil under the non-distillation condition is achieved, high-quality base oil can be stably produced, and the method has the remarkable advantages of being energy-saving, environmentally friendly and high in automation degree.
Owner:QINGDAO HAINA ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY DEVELOPMENT CO LTD
Filtering equipment capable of automatically replacing and filling activated carbon and extraction and oil removal system
ActiveCN223696916USolid sorbent liquid separationLoose filtering material filtersActivated carbonEnvironmental engineering
The utility model relates to filtering equipment capable of automatically replacing and filling activated carbon and an extraction oil removal system, and relates to the field of filtering equipment. The filtering equipment comprises a feeding mechanism, a spiral conveying pipe, a filtering unit, a conveying belt and a waste barrel, the filtering unit comprises a filtering barrel, a top cover and a bottom cover, the top cover and the bottom cover are detachably connected with the filtering barrel, an activated carbon inlet and a liquid inlet are formed in the top cover, and a liquid outlet is formed in the bottom cover; the feeding mechanism is located above the filtering unit, the feeding mechanism is communicated with the spiral conveying pipe, and a discharging opening of the spiral conveying pipe is communicated with the activated carbon inlet; the conveying belt is arranged below the filtering unit, and the tail end of the conveying belt communicates with the waste barrel. The filtering equipment can be quickly disassembled and is convenient to maintain, filling and discharging of activated carbon do not need manual intervention, automatic replacement can be achieved, operators are effectively prevented from entering the tank body for operation, safety and efficiency are improved, labor intensity is reduced, and the filtering equipment is more efficient and more environmentally friendly.
Owner:QUZHOU HUAYOU COBALT NEW MATERIAL CO LTD +1
Janus membrane, preparation method and application thereof, and emulsion treatment device
The invention discloses a Janus membrane as well as a preparation method and application thereof and an emulsion treatment device, and relates to the technical field of membrane filtration, the Janus membrane comprises a polyvinylidene fluoride base membrane and a copolymerization crosslinking product grafted on the surface of one side of the polyvinylidene fluoride base membrane, the copolymerization crosslinking product comprises a product formed by tannic acid and gelatin through a Michael addition reaction. Wherein the copolymerization crosslinking product is grafted on the surface of one side of the polyvinylidene fluoride base membrane, the contact angle of the side is reduced, the contact angle of the surface of the other side of the polyvinylidene fluoride base membrane is still high, and the contact angles of the surfaces of the two sides form a difference value, so that the hydrophilicity of one side of the polyvinylidene fluoride base membrane is high, the hydrophobicity of the other side of the polyvinylidene fluoride base membrane is high, and the Janus membrane is formed. The Janus membrane is suitable for efficient separation of emulsion.
Owner:WUHAN POLYTECHNIC UNIVERSITY
Deep purification device and method for Methanol-to-Olefin washing water
ActiveUS12540084B2Water treatment parameter controlFatty/oily/floating substances removal devicesFiberPhysical chemistry
The present disclosure relates to a deep purification device and method for methanol-to-olefin washing water. Provided is a deep purification device for methanol-to-olefin washing water, comprising: a quench tower (1-1), a water washing tower (1-2) connected to an outlet at the top of the quench tower (1-1), a boiling bed separator (1-3) having the top thereof connected to the bottom of the water washing tower (1-2), a fiber coalescer (1-4) connected to the bottom of the boiling bed separator (1-3), and a buffer settling tank (1-5) connected to the sidewall of the boiling bed separator (1-3) at a position near the top. Further provided is a deep purification method for methanol-to-olefin washing water.
Owner:SHANGHAI HUACHANG ENVIRONMENT PROTECTION +2
Multi-stage separation method for oil in dimethyl dichlorosilane hydrolysis byproduct acid
The invention discloses a multistage separation method of oil in dimethyl dichlorosilane hydrolysis byproduct acid, which is used for removing organic oil impurities in dimethyl dichlorosilane hydrolysis byproduct hydrochloric acid, and comprises the following steps: S1, static pre-separation: introducing the dimethyl dichlorosilane hydrolysis byproduct hydrochloric acid to be treated into a static settling tank; most easily separated oil drops in the byproduct hydrochloric acid are removed; s2, introducing the byproduct hydrochloric acid treated in the step S1 into a high-shear device, adding a polymer demulsifier, and stirring to promote oil drop coalescence; s3, deeply filtering the demulsified acid liquor by adopting a strong acid-resistant, temperature-resistant and anti-pollution ceramic membrane, and intercepting fine oil drops; and S4, introducing the byproduct hydrochloric acid filtered in the S3 into an activated carbon adsorption column, and adsorbing residual trace soluble organic matters and pigments. Compared with the prior art, the multi-stage separation method for the oil in the dimethyl dichlorosilane hydrolysis byproduct acid has the advantages of being convenient to operate and use, efficient, low in cost and environmentally friendly.
Owner:HOSHINE SILICON (SHANSHAN) IND CO LTD
Super-hydrophobic melamine sponge prepared based on tannic acid and polydimethylsiloxane and application
PendingCN120795409AOther chemical processesAlkali metal oxides/hydroxidesOrganic solventDimethyl siloxane
The invention belongs to the technical field of oil-water separation materials, and particularly relates to a super-hydrophobic melamine sponge prepared on the basis of tannic acid and polydimethylsiloxane and application of the super-hydrophobic melamine sponge, namely tannic acid is introduced to generate a rough structure on the surface of the sponge, and then polydimethylsiloxane is used for modification. The hydrophobic angle of tannic acid, polydimethylsiloxane and melamine in the prepared super-hydrophobic sponge is as high as 154.8 degrees. Wherein the oil absorption capacity is the most remarkable performance, and the oil absorption capacity of the modified sponge can be kept 94.61% of that of the original sponge. Meanwhile, the separation efficiency of various oil-water mixtures / organic solvents exceeds 97.04%. In acid / alkaline solution, salt solution and mechanical pressing tests, the sponge shows excellent corrosion resistance and pressure resistance. Therefore, the excellent performance of the super-hydrophobic melamine sponge prepared based on the tannic acid and the polydimethylsiloxane is expected to further expand the application of a functional adsorption composite material in the field of oil-water separation.
Owner:CHANGZHOU UNIV
Tetrahydrofuran purification device
The utility model belongs to the technical field of chemical solvent preparation, and particularly relates to a tetrahydrofuran purification device. The utility model provides a tetrahydrofuran purification device. The tetrahydrofuran purification device comprises a feed port, a catalytic hydrogenation reaction part, a gas phase discharge port, a liquid phase discharge port, a heavy component removal tower and an absorption tower. In the application, through the catalytic hydrogenation part, the impurity dihydrofuran in the tetrahydrofuran is hydrogenated to generate the tetrahydrofuran, the impurities n-butyraldehyde and isobutyraldehyde are hydrogenated to generate alcohols which are easily separated from the tetrahydrofuran, through determination, the content of the impurity dihydrofuran in the purified tetrahydrofuran is reduced to 3 ppm or below, the alcohols are separated in the heavy component removal tower, and the content of the tetrahydrofuran in the tetrahydrofuran is reduced to 3 ppm or below. The purity and the quality of tetrahydrofuran are effectively improved, and the purification device structure and the purification process are simple.
Owner:CHINA CHEM TECH RES INST
Energy storage alternating current all-in-one machine and photovoltaic system
The embodiment of the utility model provides an energy storage AC all-in-one machine and a photovoltaic system, and relates to the technical field of energy storage equipment. The energy storage and communication all-in-one machine comprises a container, an oil pool and an interlayer, and the oil pool is located in the container and arranged at the bottom of the container. The interlayer is arranged in the oil pool, the interlayer is used for dividing an inner cavity of the oil pool into an upper cavity and a lower cavity, the interlayer is provided with at least one through hole, and the through hole is used for communicating the upper cavity with the lower cavity. The oil pool and the container are integrated, that is, the oil pool is contained in the container, so that the oil pool can be prevented from being independently built on site, the cost can be reduced, the construction difficulty can be reduced, and soil is not easily polluted. In addition, the oil pool is designed into the upper chamber and the lower chamber which are separated, so that the oil collecting space can be increased, and a large amount of oil can be collected.
Owner:ENVISION ENERGY TECH (SHANGHAI) CO LTD +1
Device and method for intelligently regulating and controlling liquid-liquid continuous separation of plant extract
PendingCN121422537ALiquid separation auxillary apparatusEvaporationPhysical chemistryProcess engineering
The invention discloses a device and a method for intelligently regulating and controlling liquid-liquid continuous separation of plant extracts, and belongs to the field of plant extract separation. The device comprises a mixing and concentrating device, a gravity type liquid-liquid separator and a data processing unit; the mixing and concentrating device is provided with a mixer, a film evaporator and a first near-infrared spectrometer; the gravity type liquid-liquid separator is provided with a plurality of flowmeters and a second near-infrared spectrometer; the method comprises the following steps: constructing a concentrated solution prediction model, monitoring parameters such as spectral data, temperature, stirring speed, flow and the like of the concentrated solution in real time, analyzing data through a data processing unit, optimizing a separation process by adopting a fuzzy PID control algorithm, regulating parameters such as interface height, temperature, stirring speed and the like in real time, and realizing accurate control on separation efficiency and separation effect. According to the invention, precise monitoring and regulation of liquid-liquid continuous separation of the plant extract are realized, and the separation efficiency and the separation effect are improved.
Owner:CHENGUANG BIOTECH GRP CO LTD
Oil-water separation membrane and preparation method thereof
The invention relates to the technical field of membrane material preparation, and particularly discloses an oil-water separation membrane and a preparation method thereof.The oil-water separation membrane is characterized in that polyethyleneimine is grafted to zeolite powder under the action of a cross-linking agent epichlorohydrin, and a large number of amido groups on a polyethyleneimine chain can serve as effective chelating coordination sites of metal ions in subsequent steps; meanwhile, polyethyleneimine has excellent hydrophilic performance and is grafted on the zeolite powder, so that the hydrophilic performance of the zeolite powder is improved; then, three metal salts of magnesium, aluminum and cerium are compounded with urea on the surface of the PEI grafted zeolite through a hydrothermal reaction to generate a composite metal hydroxide structure, Mg and Al form a basic framework of a layered double-metal hydroxide structure, oxygen vacancy defects can be easily formed by doping Ce, and the defects can adsorb water molecules, so that a stable hydration layer is formed on the surface of the material, and the surface of the material is protected; the excellent super-hydrophilicity is shown.
Owner:YANGZHOU POLYTECHNIC INST
Preparation of degradable cellulose acetate-based nanofiber membrane with efficient photocatalytic performance for oil-water separation
The invention relates to a preparation method of a degradable cellulose acetate-based nanofiber membrane with high-efficiency photocatalytic performance, which comprises the following steps: based on a green and environment-friendly concept, taking degradable cellulose acetate as a substrate, and adding zinc oxide / tin oxide heterojunction nanoparticles which are prepared by a one-step sintering method and have high-efficiency photocatalytic performance into the substrate; and the nanofiber membrane is prepared through electrostatic spinning. The nanofibers are uniform in thickness, and the surface roughness of the membrane is improved after the heterojunction nanoparticles are added, so that the hydrophilicity is improved. After oil-water separation, the problem of oil contamination blockage is effectively solved by utilizing the photocatalytic performance of the heterojunction nano-particles, and meanwhile, compared with a single-photocatalyst oil-water separation membrane, the recombination rate of photon-generated carriers is reduced through synthesis of the heterojunction nano-particles, and the photocatalytic performance is effectively improved. The prepared degradable cellulose acetate-based nanofiber membrane with the efficient photocatalytic performance has a good separation effect on various oil-in-water emulsions, and the rejection rate of the degradable cellulose acetate-based nanofiber membrane can reach 99% or above.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Oil clarifying device with oil residue filtering function
ActiveCN223732249UFatty substance recoveryNon-miscible liquid separationOil intakeMechanical engineering
Owner:HUNAN DUWUYOU FOOD CO LTD
Super-hydrophobic sponge as well as preparation method and application thereof
PendingCN120623566AOther chemical processesGeneral water supply conservationAlcoholPhysical chemistry
The invention provides super-hydrophobic sponge as well as a preparation method and application thereof, relates to the technical field of functional materials, and aims to solve the problems of low hydrophobicity and insufficient oil-water separation effect of the super-hydrophobic sponge. The method comprises the following steps: step 1, soaking a sponge with a required size in alcohol for a preset time, then washing the sponge with deionized water to remove the alcohol, and drying the sponge to obtain a pretreated sponge; 2, TBA, BPTA and DMSO are added into a container, the obtained solution is mixed and shaken to be clear, finally, an acid solution is added and stirred, the pretreated sponge is added after uniform stirring, the pretreated sponge is soaked in the solution, the container is sealed and subjected to a standing reaction, after the reaction, redundant solvent on the upper layer is removed, the reacted sponge is washed with alcohol, the reacted sponge is dried, and the sponge is obtained. The super-hydrophobic sponge is obtained.
Owner:PIPECHINA SOUTH CHINA CO +1
System and method for electrical coalescence separation
A system and method are disclosed relating to electrical coalescence separation. In some examples, a first electric field can be established in a first vessel that includes a first oil-water mixture received from an oil stream based on a first voltage. A second electric field can be established in a second vessel that includes a second oil-water mixture received from the oil stream based on a second voltage. The first electric field can be controlled based on the second voltage to control separation of water from oil in the first oil-water mixture in the first vessel.
Owner:SAUDI ARABIAN OIL CO