169results about "Molecular distillation" patented technology

The utility model provides molecular distillation equipment, and relates to the technical field of distillation equipment. A bearing assembly is arranged at the lower position of the front end face of the frame plate block, a fastening assembly is arranged at the upper end of the frame plate block, and the bearing assembly and the fastening assembly are directly installed on the frame plate block, so that equipment can be rapidly disassembled and assembled through the bearing assembly and the fastening assembly; the heat exchange assembly at the outer end of the distillation assembly is of an independent installation structure, heat exchange is stable, meanwhile, independent taking down is convenient, the discharging assembly at the bottom of the same distillation assembly is of a separated installation structure, and the connecting assembly of the discharging assembly is also of a detachable structure, so that after the equipment is damaged, the equipment can be conveniently taken down. The independent convenient replacement effect is achieved, and the problem that the detection cost is increased after the whole set of equipment is replaced due to the fact that the whole set of equipment is damaged and cannot be used due to the fact that the working part is damaged in the cold-heat exchange process after the existing distillation equipment is detected for multiple times is solved.

Various aspects of this disclosure relate to methods to lower the activation energy of the cannabinoid decarboxylation reaction by performing the decarboxylation reaction in the gas phase. In some specific embodiments, the method relates to the decarboxylation of a cannabinoid performed in a short-path distillation apparatus or a thin-film distillation apparatus.

The present application relates to the field of semiconductor manufacturing, and specifically to a component separation device, and a liquid recovery apparatus and method. The component separation device comprises a heater, a distillation chamber, a condenser, a light component collection tank and a heavy component collection tank. The heater is configured to heat a waste liquid, such that the waste liquid is heated to evaporate, light components therein volatilize onto a surface of the condenser and flow into the light component collection tank after condensation, heavy components therein flow into the heavy component collection tank from a surface of the heater, and a distance between the condenser and the heater is greater than an average molecular motion path L1 of the heavy components and less than an average molecular motion path L2 of the light components. The waste liquid is heated to evaporate, such that the heavy components and the light components in the waste liquid are effectively separated, thereby effectively recycling the waste liquid.

The invention relates to the technical field of vegetable oil processing, in particular to a diglyceride vegetable oil preparation process capable of reducing the content of 3-chloropropanol ester, which comprises the following steps: adding degummed oil obtained after alkali refining degumming into a short-path distiller, and carrying out primary molecular distillation to obtain crude distilled oil; mixing the crude distilled oil with activated clay, and decolorizing to obtain decolorized oil; pouring the decolored oil into a rotary wiped film type molecular distiller for secondary molecular distillation to obtain a diglyceride vegetable oil semi-finished product; carrying out deodorization treatment on the diglyceride vegetable oil semi-finished product by adopting a double-tower double-temperature sectional deodorization process to obtain deodorized oil; and crystallizing the deodorized oil in a crystallizing tank, growing crystal, filtering and dewaxing to obtain the diglyceride vegetable oil. The diglyceride vegetable oil is prepared by performing molecular distillation twice in the refining process, deodorizing and then performing the dewaxing process, so that the content of 3-chloropropanol ester can be effectively reduced.

The invention belongs to the technical field of plant essential oil separation, and provides a plant essential oil high-purity separation method based on a molecular distillation technology, which comprises the following steps: firstly obtaining a free path of a substance molecule to be extracted in a raw material, sequencing to obtain a free path gradient, then converting into a temperature gradient, and dividing into a gradient adjacent part and a non-gradient adjacent part overlapped temperature domain. And for the non-gradient adjacent part overlapping temperature domain, constructing a non-gradient temperature change curve, analyzing the stability, and performing regulation and control when the stability is not stable. The method comprises the following steps: uniformly dividing an overlapped temperature domain of a gradient adjacent part into subintervals, carrying out heating-constant temperature-cooling circulation on each subinterval, collecting a first fraction product by using an independent condenser, carrying out secondary and multiple molecular distillation, and dynamically adjusting the boundary of the subintervals in combination with GC-MS analysis so as to remove impurities. According to the method, high-purity separation of the plant essential oil is realized through association of a molecular free path and temperature in combination with multi-interval circulating distillation and real-time monitoring, the problem of insufficient separation purity in the prior art is solved, and the product purity is improved.

The invention relates to the field of molecular distillation, in particular to distillation equipment for preparing high-quality silicone oil, which comprises a frame body, a distillation cylinder arranged in the middle of the frame body, a top cover arranged at the top of the distillation cylinder, a plurality of feed ports formed in the bottom of the top cover, a heating surface arranged outside the distillation cylinder, a condenser arranged inside the distillation cylinder, and a vacuum interface formed in the right lower part of the distillation cylinder, a distillate outlet is formed in the lower right portion of the distillation cylinder, a feeding port is formed in the right portion of the top cover, a film scraping frame is rotationally connected into the distillation cylinder and slidably connected with film scraping plates, the upper portion of the film scraping frame penetrates out of the top cover, the film scraping plates are symmetrically arranged on the film scraping frame, and gaps exist between the film scraping plates and the inner wall of the distillation cylinder. Through cooperation of the film scraping frame, the film scraping plate, the first servo motor, the connecting rod, the adjusting frame and other components, a liquid film formed on the inner wall of the distillation cylinder can be more uniform, and meanwhile, the thickness of the formed liquid film can be adjusted according to materials with different viscosities, so that the downward flowing speed of the liquid film tends to be consistent, and the optimal distillation effect is achieved.

The invention relates to the field of agilawood essence extraction, in particular to an agilawood essence substance extraction method which comprises the steps of raw material pretreatment, subcritical fluid extraction, molecular distillation purification, alcohol extraction and concentration and macroporous adsorption resin purification. According to the method, subcritical low-temperature extraction and molecular distillation technologies are combined, efficient, high-purity and sectional extraction of volatile essential oil and non-volatile essence substances in agilawood under the low-temperature condition is achieved, damage to thermosensitive components is effectively avoided, and no organic solvent is left.

The utility model relates to the technical field of molecular distillation, and discloses a diversion mechanism for molecular distillation equipment, which comprises a distillation equipment body and a lifting plate, the front side of the distillation equipment body is provided with a display, one side of the distillation equipment body is provided with a control switch, and the top of the distillation equipment body is fixedly provided with a limiting box. A heating wire is arranged on the inner side of the limiting box, a heating bottle is arranged in the limiting box, a liquid inlet pipe is arranged on one side of the heating bottle, and a liquid guide pipe is arranged on one side of the heating bottle. According to the flow guide mechanism for the molecular distillation equipment, through the design of the conical flow guide inlet and the flow guide outlet, the flow guide and buffering effects can be achieved, when liquid enters and flows out of the flow guide pipe, due to the gradual change of the cross section, impact and turbulent flow of the fluid can be reduced, flowing is more stable, and when the liquid flows out of the flow guide pipe to a narrower outlet, the flow guide effect is better. Therefore, the flow guide efficiency can be improved.

A chemical reformer system has an inlet, a digester, a series of chemical reformers, coolers and separators. The temperatures and pressures of the digester and chemical reformers may be regulated, where the pressure decreases from the first chemical reformer to the last and the temperature increases from the first chemical reformer to the last. The chemical reformer system may be utilized to convert feedstock biomass to output compounds, such as bio-oils.

The utility model belongs to the technical field of silicone oil fraction purification processing, and discloses a vacuum cooling device for silicone oil molecular distillation, which comprises a vacuum condensation cavity, a cooling coil is arranged in the vacuum condensation cavity, a cooling liquid circulating device is arranged on one side of the vacuum condensation cavity, and a cooling liquid outlet is formed in the other side of the vacuum condensation cavity. The cooling coil penetrates through the side wall of the vacuum condensation cavity and is in sealed connection with a cooling liquid circulating device, the top and the bottom of the vacuum condensation cavity are both in sealed connection with three-way sealing joints, and the vacuum condensation cavity flows out of a vacuum negative pressure pipeline and a steam output pipeline through the top portions of the three-way sealing joints. The device is compact and reasonable in structural design, high-temperature silicone oil steam molecules can be cooled, impurities and low-molecular silicone oil in the high-temperature silicone oil steam molecules can be condensed and separated, the condensation efficiency of the device is high, the condensation temperature control precision is high, and the device is suitable for large-scale production. And the production efficiency and the production quality can be greatly improved.

The invention discloses scraper type thin film molecular distillation equipment which comprises a distillation retort, and a vibration structure is arranged in the distillation retort, serves as the inner wall of the distillation retort and is used for reducing material residues; the downward pressing structure is arranged on the vibration structure, and the downward pressing structure is used for driving the vibration structure so that the vibration structure can vibrate; and the film scraping structure is arranged on the inner side of the vibration structure, and the film scraping structure is used for evenly smearing the materials to the inner side of the vibration structure. According to the scraper type film molecular distillation equipment, the film scraping structure can dynamically adapt to different material characteristics, such as viscosity, adjustment of film scraping pressure and speed and uniform and controllable liquid film thickness through elastic matching of the compression-resistant spring, the sliding rod and the sliding groove of the bearing plate, combination of rotation speed adjustability of the speed reducer and real-time detection of the damping sensor on film scraping resistance; the problem that evaporation efficiency and separation selectivity are limited due to uneven liquid films of traditional equipment is effectively solved.

The invention belongs to the technical field of extraction of plant essential oil, and particularly relates to an extraction process of cumin essential oil. The extraction process specifically comprises the following steps: pretreating cumin seeds, and then carrying out supercritical CO2 gradient subsection extraction to obtain crude oil of a first incense section and crude oil of a body incense and a bottom incense section in sequence; respectively carrying out degassing, cold precipitation, filtration and clarification on the two sections of crude oil, carrying out molecular distillation, and cutting according to an accumulative distillation ratio to obtain light, medium and heavy fractions and residual liquid; and finally, directionally blending all fractions from different crude oils according to a ratio to obtain a final product. The method comprises the following steps: carrying out gradient extraction on first incense and base incense components in cumin through a process of segmented enrichment, segmented refining and directional blending, respectively rectifying the first incense and base incense components into functional fractions, and then carrying out directional combination; the process can synergistically improve the aroma level integrity, processing adaptability and storage stability of the essential oil under conventional equipment, and realizes designable flavor.

The invention discloses osmanthus essential oil and a preparation method thereof. According to the invention, osmanthus fragrans extract is used as a raw material, and the osmanthus fragrans essential oil is prepared by adopting an ethanol crystallization + molecular distillation + n-hexane secondary crystallization technology. The osmanthus essential oil prepared by the method is light yellow to orange red, clear and transparent, has the original rich fragrance of osmanthus, is still transparent liquid under a low-temperature storage condition, and does not have a solidification phenomenon; the method is low in equipment investment, simple to operate and good in repeatability, and has very high commercial application value and prospect.

The invention provides a waste heat recovery system for molecular distillation equipment, the waste heat recovery system is communicated with a heat return port of a heat generation source, the waste heat recovery system comprises a heat recovery assembly, a heat exchange tank, a preheating feeding header pipe and a plurality of preheating feeding branch pipes arranged at an outlet of the preheating feeding header pipe; a heat conduction part is arranged in the heat exchange tank, the heat conduction part comprises a heat preservation cavity, a heat transfer medium is arranged in the heat preservation cavity, the heat conduction part is rotationally arranged in the heat exchange tank, and a reciprocating material conveying structure is arranged in the heat conduction part. And meanwhile, through the rotating arrangement effect of the heat conduction piece, the rolling movement operation of the heat transfer medium in the heat conduction piece can be achieved, effective heat absorption operation can be conveniently conducted on all the parts of the heat transfer medium, and the performance that the heat transfer medium absorbs heat more sufficiently and efficiently is improved.

The invention discloses a waste offset printing ink recovery treatment method and application, and belongs to the technical field of printing ink, the recovery treatment method comprises the following steps: mixing and stirring waste offset printing ink and n-hexane through pretreatment, and removing solid-phase slag through centrifugal separation to obtain a liquid phase; concentrating the liquid phase, recovering the solvent and reserving concentrated slurry; secondly, directionally dissolving the low-molecular resin and the high-molecular resin by butyl acetate and ethylene glycol diacetate respectively through two-stage counter-current extraction and centrifugal separation to obtain a low-molecular resin solution, a high-molecular resin solution and pure pigment slurry; mixing the two resin solutions, recovering the solvent through multi-tower rectification, and refining through short-path molecular distillation to obtain regenerated resin; and finally, performing ultrasonic purification, modification and spray drying on the pigment slurry to obtain the regenerated pigment. According to the waste offset printing ink recycling treatment method and application, an efficient and reliable solution is provided for recycling of waste offset printing ink.

The application relates to the technical field of molecular distillation equipment, and discloses a vacuum pressure system of a multi-stage molecular distillation equipment, which comprises an outer pipe connecting end, an inner pipe connecting end, a distiller and a monitoring mechanism; the monitoring mechanism is arranged in the interlayer of the outer pipe connecting end and the inner pipe connecting end, is used for monitoring the sealing condition of the outer side of the gap of the inner pipe connecting end, and seals the leakage point after the leakage point appears, and informs the personnel to repair. The vacuum pressure system of the multi-stage molecular distillation equipment is characterized in that the monitoring mechanism is arranged in the interlayer of the outer pipe connecting end and the inner pipe connecting end, the attaching sheet of a plurality of sealing components is annularly wrapped around the inner pipe connecting end, and the protection shell is filled with gas-expanding fluorine rubber particles; when the leakage point appears, the attaching sheet is firstly moved to the leakage point to preliminarily seal the leakage point, and then the filler is expanded to further press the attaching sheet to tightly adhere to the leakage point, so that the problem that the connecting end is prone to generating the leakage point and the product quality is reduced in the prior art is solved.

The invention relates to a ganoderma lucidum spore oil high-purity deacidification process based on a molecular distillation technology, and discloses a process for removing free fatty acid in ganoderma lucidum spore oil and effectively retaining active ingredients by optimizing parameters of molecular distillation equipment and combining multistage molecular distillation with a nanofiltration membrane pre-concentration process. The purity, the quality and the stability of the ganoderma lucidum spore oil are improved. The method is characterized by comprising the following steps: (1) raw material pretreatment: primarily heating ganoderma lucidum spore oil by adopting a constant-temperature water bath at 30-50 DEG C, removing mechanical impurities by virtue of a vacuum filtering device, then carrying out vacuum drying treatment on the filtered ganoderma lucidum spore oil at 60-70 DEG C for 2-3 hours, controlling the vacuum degree to be 0.01-0.03 MPa, and removing moisture, so as to obtain pretreated ganoderma lucidum spore oil; (2) primary molecular distillation: the ganoderma lucidum spore oil pretreated in the step (1) is subjected to primary molecular distillation, the evaporation surface temperature is 120-140 DEG C, the condensation surface temperature is 40-60 DEG C, the system pressure is maintained within the range of 0.1-0.5 Pa, and light components and heavy components are collected.

This invention relates to the field of nervonic acid preparation technology, specifically to a high-efficiency separation device for nervonic acid from garlic fruit oil based on molecular distillation technology. The device includes a molecular distillation apparatus, internally comprising, from top to bottom, a driver, a film scraping system, and a condensation system. The film scraping system includes a rotating shroud driven by the driver, a centrifugal disc located at the bottom of the rotating shroud, a pressure rod located inside the rotating shroud, and a transmission rod rotating at the bottom of the pressure rod and slidably inserted into the centrifugal disc. The centrifugal disc of this invention uses centrifugal force generated by high-speed rotation to evenly distribute the material onto the evaporation wall, forming an initial ultrathin film. Simultaneously, the scraper rotates accordingly, performing secondary scraping and homogenization of the initial liquid film. Utilizing the synergistic structure of centrifugal material distribution and mechanical scraping, the problem of uneven material distribution in traditional methods is solved at its source, and dynamic renewal of the evaporation interface is achieved, thereby improving heat and mass transfer efficiency.

The invention relates to a process for obtaining free fatty acid and / or free fatty acid ester, in which a liquid mixture containing the free fatty acid and / or the fatty acid ester is separated by contacting a vapour of the liquid mixture in a column of a distillation apparatus with condensate formed from the vapour running downward, wherein heat and mass transfer takes place between the vapour and the condensate on column internals. According to the invention, the column has at least 10 theoretical plates and the separation is conducted with a pressure drop between the top and bottom of the column Δp of ≥ 3.3 mbar. Appropriately, the liquid mixture, preferably produced from vegetable oil or from fish oil, contains polyunsaturated fatty acid, preferably omega-6 or omega-3 fatty acid and / or alkyl monoesters and / or glycerol monoesters. In one configuration of the invention, the column has at least 30, preferably at least 40, theoretical plates and the separation is conducted with a pressure drop Δp between 3.5 mbar and 6 mbar.

PROBLEM: To provide a composition comprising highly enriched PUFA or its alkyl esters while containing fatty acid esters of 3-MCPD at adequately low concentrations and to provide an efficient method for producing the composition. MEANS FOR SOLVING: A composition that contains fatty acids or fatty acid alkyl esters as its major component, the composition containing highly unsaturated fatty acid or alkyl ester thereof, wherein the proportion of the highly unsaturated fatty acid in the constituent fatty acids of the composition is 50 area % or more and wherein the concentration of 3-MCPD as found upon analyzing the composition by American Oil Chemists' Society official method Cd 29b-13 assay A is less than 1.80 ppm.

The invention relates to the technical field related to the biological processing industry, discloses a deacidification device for fish oil processing and production and a process thereof, and aims to solve the problems that all parts of fish oil are heated unevenly due to heating outside a tank and free fatty acid is difficult to separate from a fish oil system after being evaporated. When the auger rotates, fish oil at the bottom of the deacidification tank can be conveyed upwards, so that a small amount of fish oil finally flows out from a gap between the flow limiting disc and the tank cover, and the fish oil is stirred up and down in the deacidification tank; in the process that a small amount of flowing-out fish oil flows along the inner wall of the deacidification tank, a layer of thin film liquid is formed, the contact area of the liquid film and the heating surface of the tank wall is greatly increased, heat can be directly and rapidly transferred to fish oil molecules, and in the liquid film state, free fatty acid in the fish oil can be rapidly diffused to a gas phase space after being vaporized, so that the fish oil is rapidly separated from the gas phase space. And the residence time of fatty acid steam in an oil phase is reduced.

This invention relates to a high-content EPA / DHA product separation and purification device, belonging to the field of extraction and purification equipment technology. It includes a distillation cylinder with a heating jacket inside. A film-forming mechanism is located at the upper end of the cylinder's inner cavity, utilizing a preheated liquid jet to form an atomized liquid film skirt, which, in conjunction with the heating jacket, heats the raw material. An inclined guide plate is located at the lower end of the cylinder's inner cavity, with multiple through holes arranged in a ring array. Above the guide plate is a heavy phase collection area, with a heavy phase discharge pipe on one side. Below the guide plate is a light phase collection area, with a light phase discharge pipe on one side. A condensation mechanism is installed inside the distillation cylinder. This solution solves the problem that direct heating of the raw material can lead to a slow boiling point, resulting in impurities contaminating the EPA / DHA and affecting its purity.

This invention relates to the field of molecular distillation equipment technology, and discloses a feeding device for a molecular distillation equipment, including a distillation body and a liquid inlet pipe. The liquid inlet pipe is installed on one side of the top of the distillation body for injecting a liquid mixture into the distillation body. The liquid inlet pipe contains a valve body, a valve core, a throttling boss, and a multi-stage throttling ring. The valve body is fixed to the inner wall of the end of the liquid inlet pipe closest to the distillation body. This feeding device for molecular distillation equipment, by setting a valve core adjustment structure synchronized with the gas pressure of the distillation body and a liquid outlet fine-tuning component, achieves dynamic adaptation of the feed flow rate to the vacuum degree of the distillation body. This solves the problem of frequent fluctuations in the liquid volume within the distillation body caused by pulse / droplet feeding in existing technologies, ensuring stable liquid layer thickness, uniform heat transfer, avoiding insufficient vaporization of high-boiling-point components or excessive vaporization and decomposition of low-boiling-point components, and maintaining gas-liquid balance and the purity of the target component.

The invention belongs to the technical field of separation and purification, and particularly relates to a separation and purification system, application thereof and a method for separating and purifying saturated fatty acid amide. The separation and purification system provided by the invention comprises a spiral plate heat exchanger, a short-path molecular distiller, a horizontal distiller, a horizontal condenser, a vertical condenser and a product receiving tank which are communicated in sequence, a low-boiling-point substance outlet of the short-path molecular distiller is communicated with a front fraction receiving tank, the horizontal distiller is communicated with a falling film heater through a circulating pump, and a material outlet of the falling film heater is communicated with the horizontal distiller; and the top end of the vertical condenser is connected with a vacuum unit. The separation and purification system is simple and convenient to operate, can be suitable for separation and purification of various saturated fatty acid amides, and expands the application field. The product separated by the separation and purification system provided by the invention is high in purity (the amide content is greater than or equal to 98.5%), good in color (less than or equal to 100HaZen) and high in yield (greater than or equal to 95.5%).

The invention discloses a wiped film thickness adjusting device for a molecular distiller, and relates to the technical field of molecular distillators, the wiped film thickness adjusting device comprises a tank body, a motor and a central pipe, and further comprises a heating mechanism arranged on the outer wall of the tank body and used for forming a heating surface for liquid evaporation on the inner wall of the tank body; the first scraping plate, the second scraping plate and the third scraping plate are sequentially fixed to the outer wall of the center pipe, and liquid outlet grooves penetrating through the first scraping plate, the second scraping plate and the third scraping plate are longitudinally formed in the inner wall of the center pipe at equal intervals; and the buoyancy switching mechanism is arranged in the central pipe and the top cover and is used for switching the first scraping plate, the second scraping plate and the third scraping plate to scrape a film according to the liquidity of the liquid, so that the film forming thickness of the liquid on the inner wall of the tank body is adjusted. And the film scraping thickness can be automatically adjusted according to different contents of heavy components and light components in the material film scraping process, so that the evaporation effect is improved.

The invention discloses a preparation method of diglyceride, and belongs to the technical field of grease processing. The method comprises the following steps: carrying out glycerolysis reaction on grease and glycerol, purifying by molecular distillation to obtain light-phase distilled monoester, reacting the light-phase distilled monoester under the action of enzyme to obtain a reaction product containing glycerol, monoglyceride, diglyceride and triglyceride, and purifying the reaction product by molecular distillation to obtain the diglyceride grease. According to the preparation method, the triglyceride grease rich in source is adopted as the raw material, fatty acid does not need to be added, no by-product is generated, and cost is saved; the method does not need to use an organic solvent, and the preparation process is pollution-free; and the yield of the diglyceride prepared by using the method is high, and the content of the 1, 3-diglyceride in the prepared diglyceride is high.

The utility model discloses molecular distillation equipment which comprises a shell, a heavy oil outlet and a light oil outlet, a feeding hole is formed in the top of the shell, a heavy oil outlet is formed in the side edge of the bottom of the shell, a heating device is arranged outside the shell, and a first driving device is arranged at the top of the shell; the material distribution disc is arranged on the upper portion of the interior of the shell and driven by the first driving device to rotate, the outer periphery of the material distribution disc extends to the inner wall of the shell, and a condensation structure is arranged on the bottom face of the material distribution disc; the middle shaft is arranged on the bottom surface of the material distribution disc and can move along the radial direction of the material distribution disc so as to be close to or far away from the shell; the scraper is configured to move in the radial direction of the material distribution disc so as to be attached to the inner wall of the shell or be away from the inner wall of the shell; according to the molecular distillation equipment, the problem that the use of the molecular distillation equipment is influenced due to the fact that residual materials are attached to the inner wall of the outer shell and are solidified after feed liquid is processed by the traditional molecular distillation equipment can be solved.

The invention belongs to the field of sugar industry, and discloses a method for enriching and separating sugarcane flavor substances. A co-processing method of sugarcane juice acid adjustment, heating, vegetable tannin coagulation, plate frame filtration, secondary heating, high-temperature evaporation, condensation, subcritical extraction and distillation is mainly adopted, filtered juice subjected to existing plate frame filtration treatment is high in quality, the water content of a filter cake is low, and the extraction, enrichment and purification processes of sugarcane flavor substances are green production processes. The method has the advantages that the method is simple in operation, the influence on subsequent processing of the sugar juice is small, the comprehensive utilization value of the obtained filter mud, deodorized water and other byproducts is high, the sugarcane flavor substance enrichment and separation system has the characteristics of compact and advanced equipment, high efficiency and the like, products are diversified, the value of the byproducts is high, and the comprehensive economic benefit and social benefit are very remarkable.

A method for reducing mineral oil content in edible vegetable oil includes the following steps: carrying out the molecular distillation on the edible vegetable oil having mineral oil exceedance; mixing water, the vegetable oil and an emulsifier with stirring to form an unstable emulsion; standing the emulsion for 1 to 5 hours for layer separation to form oil phase and emulsified phase, or oil phase, emulsified phase and water phase, and then separating different phases; freezing the oil phase after stirring, and then treating the oil phase with high-voltage pulsed electric field followed by ultrafiltration to obtain a vegetable oil I; subjecting the emulsion phase to low-temperature plasma treatment and then to high-voltage pulsed electric field treatment to break emulsion, drawing the upper oil phase for ultrafiltration followed by molecular distillation to obtain a vegetable oil II.