46results about How to "High demulsification rate" patented technology

The invention discloses an inverse-phase micro-emulsion polymer fracturing fluid system with an online construction function. The inverse-phase micro-emulsion polymer fracturing fluid system comprisesinstant dissolving emulsion thickening agents, functional auxiliaries, a clay stabilizer and fluid preparation water. The instant dissolving emulsion thickening agents are inverse-phase micro-emulsion polymers, and inverse-phase micro-emulsion polymerization is carried out on raw materials including acrylamide, acrylic acid, strong-hydrophilicity monomers, a functional monomer A, a functional monomer B, pH (potential of hydrogen) regulators, solubilizers, composite emulsifiers, oil solvents, initiators and deionized water to obtain the instant dissolving emulsion thickening agents; the functional monomer A is methyl methacrylate or ethyl methacrylate or a mixture of the methyl methacrylate and the ethyl methacrylate; the functional monomer B is vinylphosphonic acid or vinyl sulfonic acid;the functional auxiliaries are non-ionic surfactants; the clay stabilizer is potassium chloride, and the fluid preparation water is clear water or high-mineralization water or treated stratum flow-back fluid. The inverse-phase micro-emulsion polymer fracturing fluid system has the advantages that the inverse-phase micro-emulsion polymer fracturing fluid system is high in dispersing and swelling speed and can be prepared in a batch manner or can be continuously mixed, 'online construction' requirements even can be completely met by the inverse-phase micro-emulsion polymer fracturing fluid system, processes for constructing the inverse-phase micro-emulsion polymer fracturing fluid system are simple, and the fracturing cost can be reduced.

The invention relates to a demulsification method by soybean grease microbe extraction through an aqueous enzymatic method, which belongs to the plant grease extraction technology. The method comprises the following steps: 1) crushing soybean to obtain a puffed material by using an extruding puffed pretreatment, mixing the puffed material and water to obtain a mixed liquor, adding alkaline protease in the mixed liquor for enzymatic hydrolysis, centrifuging after enzymatic hydrolysis to obtain free oil, an emulsion, a hydrolysate and residues; 2) fermenting the mixed demulsifying bacteria with different complex formulation proportion through a MMSM inorganic salt liquid medium to obtain a mixed demulsifying bacteria whole liquid culture medium; 3) adjusting the pH value to the emulsion obtained in the step 1) to neutrality, fully and uniformly mixing with the mixed demulsifying bacteria whole liquid culture medium, and standing and performing constant temperature demulsification, centrifuging after demulsification to obtain soybean oil. The method of the invention has the advantages of simple technology device, low cost, easy degradation of waste liquid, low toxicity and no pollution generation, and the mixed demulsifying bacteria whole liquid culture medium has good thermostability and repeated usage.

The invention discloses a high-frequency crude oil dehydrator. A high-frequency dehydrator is connected with an impedance allocating network; a high-frequency radiator is connected with a temperature detection system; the temperature detection system is respectively connected with the impedance allocating network, a power amplification tank circuit, a high-frequency oscillation circuit and a detection and alarm system; the detection and alarm system is connected with a control system of a power supply system; the control system of the power supply system, the high-frequency oscillation circuit, the power amplification tank circuit and the impedance allocating network are all connected with a cooling system; a radial high-frequency electric field is generated by the high-frequency dehydrator at the high frequency; the orientation polarization is generated under the action of the electric field; two ends of water droplets induce and generate opposite charges to form an induction electric field; dipole coalescence is generated between the similar water droplets; the water droplets are condensed to form large water droplets; the large water droplets are demulsified and settled; the high-frequency electric field accelerates polar molecules to rotate at high speed and cause charge neutralization; when liquid globules lose the action of double electric layers, the liquid globules collide and gather, so that the oil and the water are separated. The high-frequency crude oil dehydrator has the characteristics of low operation cost, dehydration simplicity, high dehydration efficiency, stability and safety in dehydration, and green and environment-friendly performance.

The invention discloses an oil-soluble demulsifier and a preparation method thereof. The preparation method comprises the following steps: adding phenyl hydrogen-containing silicone oil and an organic solvent into a reaction kettle; heating to 70 to 75 DEG C with stirring; adding a suitable amount of catalyst at the temperature; then heating to 80 to 130 DEG C; dropwise adding a mixture of long-chain carbon olefins and polyether; after the mixture is dropwise added, reacting for 5 to 10 hours at the temperature; distilling under a reduced pressure to remove low-boiling-point substances and unreacted raw materials to obtain the novel oil-soluble demulsifier, wherein the molar ratio of the phenyl hydrogen-containing silicone oil to the mixture of polyether and long-chain alkyl is 1:(1-1.3); the molar ratio of polyether to long-chain carbon olefins is 1:(1-4). The novel oil-soluble demulsifier provided by the invention can prolong action time in demulsification application, and moreover, has the advantages of high-efficiency demulsifying effect, wide application range, small using amount and low toxicity.

The invention discloses a biological enzyme demulsification method for extracting soybean oil and fat by an aqueous enzymatic method and belongs to vegetable oil and fat extraction technologies. The method includes the following steps of (1) smashing puffed soybeans, mixing the smashed soybeans with water to obtain a mixed liquor, adding alkaline protease in the mixed liquor to perform an enzymolysis reaction, and after the enzymolysis, performing a centrifugal separation to obtain free oil, an emulsion, a hydrolysate and residues; (2) adding water and phospholipase in the emulsion obtained from the step (1) to stir to perform the enzymolysis reaction to obtain a reaction solution; and (3) adding alcohol in the reaction solution obtained from the step (2) to perform an ultrasonic processing, and then performing the centrifugal separation to obtain the soybean oil and fat. The biological enzyme demulsification method for extracting the soybean oil and fat by the aqueous enzymatic method has the advantages that the required processing equipment is simple, the demulsification time is short, the method is environment-friendly, and the demulsification rate is high.

The invention relates to an amphiphilic hyperbranched polymer as well as preparation and application thereof. The core of the amphiphilic hyperbranched polymer is hyperbranched polyethyleneimine withstrong hydrophilic property, wherein partial end amino of the hyperbranched polyethyleneimine is grafted with carboxyl on NH2(CH2)5CONH(CH2)5COOH by virtue of amido bonds. When the amphiphilic hyperbranched polymer serves as a demulsifier, the oil-in-water emulsion reaches the aqueous oil content of lower than 5% in a short time under the condition that the addition amount of the demulsifier is small. Meanwhile, the oil phase moisture content can be as low as 1% or less, the residual emulsion layer is extremely thin even disappears, and a clear oil-water interface is formed.

The invention discloses a high-frequency crude oil dehydrator. A high-frequency dehydrator is connected with an impedance allocating network; a high-frequency radiator is connected with a temperature detection system; the temperature detection system is respectively connected with the impedance allocating network, a power amplification tank circuit, a high-frequency oscillation circuit and a detection and alarm system; the detection and alarm system is connected with a control system of a power supply system; the control system of the power supply system, the high-frequency oscillation circuit, the power amplification tank circuit and the impedance allocating network are all connected with a cooling system; a radial high-frequency electric field is generated by the high-frequency dehydrator at the high frequency; the orientation polarization is generated under the action of the electric field; two ends of water droplets induce and generate opposite charges to form an induction electric field; dipole coalescence is generated between the similar water droplets; the water droplets are condensed to form large water droplets; the large water droplets are demulsified and settled; the high-frequency electric field accelerates polar molecules to rotate at high speed and cause charge neutralization; when liquid globules lose the action of double electric layers, the liquid globules collide and gather, so that the oil and the water are separated. The high-frequency crude oil dehydrator has the characteristics of low operation cost, dehydration simplicity, high dehydration efficiency, stability and safety in dehydration, and green and environment-friendly performance.

The invention relates to a method for demulsifying oil-in-water emulsion. The method comprises the following steps: 1) carrying out an aldimine condensation reaction on lauric aldehyde and hyperbranched polyethyleneimine, and performing reductive amination to obtain amphipathic hyperbranched polyethyleneimine modifier, wherein a feed ratio of the lauric aldehyde to hyperbranched polyethyleneimineis (1-6ml):(2-6g); the core of the amphipathic hyperbranched polyethyleneimine modifier is hyperbranched polyethyleneimine with strong hydrophilic property, and the shell is composed of oleophilic dodecyl and hydrophilic amino; and 2) dispersing the amphipathic hyperbranched polyethyleneimine modifier into the oil-in-water emulsion for demulsifying. According to the method, the oil content of an aqueous phase of the oil-in-water emulsion is less than 5% in a short time, the moisture content of an oil phase can be reduced to 0.1% or less, the residual emulsion layer is extremely thin even disappears, and a clear oil-water interface is formed.

The invention discloses a treatment method and application of a demulsifier and rice straw raw materials, belonging to the technical field of oil field chemicals. The processing method of the rice straw comprises reacting the raw material of the rice straw with an acid solution according to the material ratio (1.5-3) g:(100-150) mL, and then filtering and drying. The present invention also proposes a demulsifier, including the rice straw obtained by the above treatment method. In addition, the present invention also proposes an application of the above-mentioned demulsifier in the treatment of W / O crude oil emulsion. The demulsifier proposed by the invention can realize high-efficiency demulsification in a short time, and the demulsification rate is as high as more than 89%.

The invention relates to the technical field of plant oil extraction, in particular to comprehensive suaeda salsa seed oil and protein extraction technology. The comprehensive suaeda salsa seed oil and protein extraction technology comprises the following steps: performing raw material pretreatment, performing fermentation treatment, performing primary enzymolysis treatment, preparing a whole culture fluid of composite demulsifying bacteria, performing demulsification treatment, performing secondary enzymolysis and performing washing and drying treatment. By the preparation method, through enzymolysis, fermentation, enzymolysis treatment, and then demulsification treatment with the composite demulsifying bacteria, the oil extraction rate of suaeda salsa seeds is greatly increased and the yield of protein is also increased.

The invention provides a method for extracting soybean oil compound breakdown emulsion by virtue of an aqueous enzymatic method, and belongs to extracting and processing technologies of vegetable oil and fat. The method comprises the following steps: (1) crushing soybeans, then performing extrusion puffing to obtain a puffed material, mixing the puffed material with water to obtain a mixed solution, adding alkali protease into the mixed solution to perform enzymolysis, and then performing centrifugal separation to obtain free oil, emulsion, hydrolysate and residues; (2) mixing the emulsion with a AlCl3 solution at equal volumes, then adding a microbial surfactant, mixing uniformly, and then adjusting the pH value to be neutral; and (3) performing ultrasonic treatment on the treated emulsion, and then performing centrifugal separation to obtain soybean oil. By adopting the method, the inorganic salt AlCl3, the microbial surfactant and an ultrasonic technology are organically combined together to form an integral compound demulsification system which is low in cost and pollution-free, and is short in demulsification time and high in demulsification rate, and the obtained soybean oil is high in purity and good in quality and has a wide application prospect in processing of the vegetable oil and fat.

The invention discloses a microemulsion nano fracturing yield increase agent and a preparation method thereof. The microemulsion nano fracturing yield increase agent is prepared from the following components in parts by weight: 20 to 40 parts of a surfactant, 20 to 40 parts of limonene, 1 to 7 parts of fatty acid, 1 to 7 parts of fatty amine, 1 to 3 parts of first coated microspheres and 10 to 30parts of water. The microemulsion nano fracturing yield increase agent is a nano-level tiny particle and can go deep into a small hole and reach all regions affected by fracturing liquid; when required to be subjected to gel breaking, the fracturing liquid is in contact with a gel breaking agent to exert the effect, so that the interfacial tension and the surface tension of the fracturing liquid gel breaking liquid are greatly reduced; the absorption amount of the fracturing liquid on a fracture shale solid interface is reduced, and the treatment area of the deep part of a fracture is relatively large; the capillary force of the fracturing liquid gel breaking liquid can be lowered; the wettability of the surface of a solid is improved; the liquid locking damage is relieved. Therefore, thefracturing liquid flowback rate is increased, and the yield of fluid ores is finally increased.