108results about How to "Strong demulsification ability" patented technology

The invention discloses a deoiling agent for oilfield binary composite displacement output sewage and a preparation method thereof. The deoiling agent comprises acryloyloxy ethyldimethylamine, chloroalkane, acrylamide, N,N'-methylene-bis acrylamide, ammonium persulfate and sodium sulfite. The preparation method comprises the following steps: reacting the acryloyloxy ethyldimethylamine and chloroalkane (CnH2n+1Cln=1-12) to generate a cationic monomer; and mixing the acrylamide and N,N'-methylene-bis acrylamide, adding deionized water by three times while stirring, completely dissolving, adding the cationic monomer, respectively adding ammonium persulfate and a sodium sulfite solution, and stirring at the constant temperature of 45 DEG C to react for 3-5 hours, thereby obtaining the deoiling agent. The deoiling agent is simple to prepare and convenient to use, and has the advantages of low chemical consumption, low cost and high deoiling ratio (higher than 90%); the separated recovered oil does not influence the subsequent crude oil dehydration; and therefore, the deoiling agent can be widely used in the oilfield binary composite displacement output sewage deoiling technique.

The invention discloses a high-concentration emulsion treatment method and a treatment system. The system comprises a waste emulsion storage tank, an acidification reaction tank, an oil separation tank, a Fenton reaction tank, a press filter, an evaporating pot and a biochemical device sequentially; the biochemical device comprises a filtrate collection tank, an anaerobic tank, a facultative anaerobic tank, an aerobic tank, a biological aerated filter, an MBR (Membrane Bioreactor) membrane tank, a reverse osmosis tank, a chemical oxidation pond and a recycled water tank which are sequentiallyconnected; the acidification reaction tank is connected with a dosing tank which is used for adding a demulsifier, and the Fenton reaction tank is connected with a dosing tank II for adding a Fenton reagent, a dosing tank III for adding a demulsifier and a dosing tank IV for adding liquid alkali / lime hydrate. The treatment method comprises the steps of collecting treatment, acidification, primarycoagulative precipitation, secondary coagulative precipitation, evaporation treatment, biochemical treatment and second-stage biochemical treatment. The system and the method have the effects of highdemulsification capability, applicability to the treatment of a variety of emulsions, high recovery and reutilization rate and high purification treatment capacity.

The invention relates to a heavy poor crude oil deep electric desalting device which comprises an electric desalting tank body, an electronic pressure regulator, an electric desalting special transformer, a flat-response electrode plate, a vertical-response electrode plate and an oil dispenser. The electronic pressure regulator can preset, modify or dynamically regulate the wave curve input to the transformer by programming. AC response high tension electricity is transported on the flat-response electrode plate, negative-positive response high tension electricity is transported on the vertical-response electrode plate, the flat-response electrode plate and an oil-water boundary form an AC response high voltage electric field, the high tension electricity transported on the flat-response electrode plate can be automatically adjusted according to the emulsification degree of an oil-water emulsification layer, and the oil dispenser is arranged between the flat-response electrode plate and the oil-water boundary. The invention forms the flat response high voltage electric field and the vertical response high voltage electric field, has stronger emulsion breaking property, thoroughly solves the problem of the tripping operation of the transformer during the procedure of processing heavy poor crude oil, ensures that a unit operates stably for a long period, greatly reduces the water content of the desalted crude oil so as to achieve the technical target that the water content of the desalted crude oil is not less than 0.2 percent, achieves the technical target that the salt content is lowered to be less than 2mg / l and realizes the technical target of deeply desalting.

The composite compound for oil-film bearing oil comprises following constituents: 0.01-1.0% any one or mixture of condenses of amine and epoxide, ethylene oxide-propane block polyether, oil-solubility polyether; 0.01-1.8% any one or mixture of thiadiazoles polysulfide, benzenetriazole-aldehyde-amine condenses, and benzenetriazole fatty acidic ammonium salt; 0.01-1.5% any one or mixture of alkyl-naphthalene sulfonate, benzotriazoles, and alkylphosphoricimidazole salt; 0.01-1.0% any one or mixture of vulcanized cotton seed oil, vulcanized alkene cotton seed oil, fatty acid ester, phosphonic ester, and molybdenum phosphate sulfate; 0.05-2.5% any one or mixture of vulcanized fatty acid ester, vulcanized vegetable oil, vulcanized isobutene, polysulfide, and phosphite ester; and basic oil.

The invention discloses a polyether crude oil demulsifier using straight chain alkyl phenolic resin as an initiator and a preparation method and an application thereof. The general formula of the polyether crude oil demulsifier using straight chain alkyl phenolic resin as an initiator is A-(PO)a-(PO)b-(EO)c-(PO) m, wherein PO is -(CH2-O-CH2CH2)-, EO is -(O-CH2CH2)-, A and R are straight chain alkyls with carbon number of 6, n is an integer of 5-13, a+b is equal to m, and in the general formula, the mass of EO accounts for 15-25% of the mass sum of EO and PO. The polyether crude oil demulsifier prepared by the invention is simple in preparation process, good in surface activity, strong in demulsification capability and diffusion capability, good in dehydration effect, excellent in capability of perfecting oil-water interface emulsification performance and strong in universality, and the demulsification and dehydration rate of the crude oil reaches to 80-92%.

The invention relates to a lubrication oil composite demulsifier which is composed of the following components in percent by weight relative to 100 percent of the total weight of the composite demulsifier: 0.5-15 percent of kilfoam, 1-25 percent of demulsifier and 60-98 percent of solvent, wherein the kilfoam is one or more components comprising silicone oil, fluorine-bearing silicone oil and acrylate copolymer, and the demulsifier is a polyethers demulsifier. The invention combines the kilfoam and the demulsifier and gives a full play to the advantages of the kilfoam and the demulsifier, thereby further improving the emulsification resistance of oils.

A preparing method of composite flocculating agent includes that substitute amine A produced by the reaction of amine and epoxypropane reacts with adduct B produced by the reaction of carbowax molecular weight of which is 500-1000 and epichlorohydrin with inverse flow, the product of which can be used for flocculating agent directly after neutralization of commercial alcaine or acetic acid, wherein inorganic flocculants account for 5-40 mass%, that has strong demulsifying effect for oily wastewater of oil-in-water or water-in-oil, and rapid flocculating separation effect for oily wastewater contained more fatlute, after that the wastewater with low turbidity and little scum contains much oil.

The invention discloses an integrated treatment process of enhanced flocculation and bio-contact oxidation for high-salt oil-containing wastewater, which uses a two-step serial biochemical reactor combining a push flow bio-contact oxidation reactor and a completely mixed bio-contact oxidation reactor. The treatment process comprises a combined process preparation stage and a treatment stage, wherein the preparation stage comprises the steps of selecting fillers, culturing sludge and hanged membrane, and preparing flocculant; the treatment stage comprises enhanced flocculation treatment and bio-contact oxidation treatment. Cured flocculant adopted by the invention has better flocculation effect and adsorption-bridge capacity for suspended substances and emulsified oil and stronger demulsifying capacity for emulsified oil water, and is applied to treatment of emulsified oil containing wastewater; under change of inflow water quality, flow and saltness, the invention has strong impact resistance on load capacities and stable yielding water quality. The COD of the yielding water is below 40mg / L, and the removing rate reaches 90%. The invention is an efficient way for treating high-salt oil containing wastewater and has vast potential for future development.

The invention relates to Rhodococcus sp., lipopeptid extra-cellular bio-demulsifier produced by culturing the Rhodococcus sp. and an application thereof. The dosage of the bio-demulsifier is 100-200mg / L, and the demulsification rate of the W / O type kerosene model emulsion can be 72.7-89.1% within 24h when the demulsification test temperature is 35 DEG C. When the bio-demulsifier is used in thin oil extraction liquid in ocean extraction plants of Shengli Oil Field (SLOF) and the dosage is 90-140mg / L, the demulsification rate can achieve 60.0-62.5% within 6.5h which is further superior to the chemical demulsifier used on site. The extra-cellular bio-demulsifier has the advantages of convenient extraction, low production cost, easy storage and transportation, and can solve the problems of influenced oil product quality and high extraction cost of cell wall combined products when full culture liquid is added.

The invention relates to an oil-soluble rust-inhibiting additive, and the preparing method as well as the use method thereof. In the preparing method, twelve-alkene-butyl diacid DDSA and polylol are adopted as raw materials and decompressed at a temperature of 130 to 150 DEG C. The corresponding rust-inhibiting additive is obtained through the synthesis of one-step esterification reaction. The use method of the oil-soluble rust-inhibiting additive is that the weight percentage of the quantity added to common rust-inhibiting grease is 0.03 to 0.05 percent. The rust-inhibiting additive of the invention can prolong the antioxygen life of petroleum products, has stable performance and high temperature resistance, is hard to be dissolved out at a low temperature and has excellent fluidity. The rust-inhibiting additive is a rust-inhibiting additive with excellent performance, which is applicable to rust-inhibiting oils of various types such as the steam-turbine oil, the hydraulic oil, the main shaft oil and so on.

The present invention discloses one kind of demulsifier. The demulsifier contains salt formed with Gemini amine and alkyl aryl sulfonic acid and in the shown structure, and assistant. The Gemini amine is amphiphilic and hydrophobic-oleophobic, and the alkyl aryl sulfonic acid is amphiphilic. The stable demulsifier system has excellent demulsifying and preserving effect on emulsified raw oil, and may be used widely for demulsifying treatment in raw oil production and refining.

The invention provides a shield machine main bearing sealing grease, which comprises, by mass, 4-10% of base oil, 2-6% of a fiber material, 2-7% of a solid lubricant, 14-20% of lubricating grease, 15-24% of a tackifier, 4-8% of a corrosion inhibitor, 40-50% of a powdered filler, and 0.5-3% of a nanometer rare earth oxide. The invention further provides a preparation method of the sealing grease. Compared to the existing shield machine main bearing sealing grease, the shield machine main bearing sealing grease prepared by using the formula of the present invention has good emulsification resistance, good wear resistance and good sealing property, wherein the wear resistance is excellent, the minimum diameter of the wear spot under ASTM D4172 standard is 0.49, and the emulsification resistance of the sealing grease is improved so as to easily improve the water rinsing resistance of the sealing grease of the present invention, such that the sealing grease has good sealing property.

A fuel additive and its preparation for a engine, a fuel containing the additive, a fuel additive concentrate, a method for improving performance of fuel injectors and a method for cleaning fuel injectors for an engine. The fuel additive includes a quaternary ammonium salt derived from a reaction of a hydrocarbyl substituted anhydride, a tertiary amine and a hydroxyl-containing epoxide, wherein the tertiary amine is devoid of primary and secondary amino groups.

The invention discloses a steam turbine oil composition and a preparation method thereof, and relates to the field of industrial lubricants. The steam turbine oil composition comprises the following components: (1) base oil; (2) an antioxidant; (3) an anticorrosive antioxidant; (4) an antirust agent; (5) an extreme pressure wear resisting composite agent; (6) an organic sulfonated substance or organic sulfonated polymer; (7) an anti-bubbling agent; (8) a demulsifying agent; (9) a dispersing agent. The preparation method of the steam turbine oil composition comprises the following steps: (1) weighing; (2) mixing compressed air; (3) mixing by using a mixing pump; (4) performing standing. The steam turbine oil composition provided by the invention is stable in quality, moderate in viscosity and good in liquidity, has excellent lubricating performance, extreme pressure wear resistance, cooling performance, high temperature stability and oxidation stability and relatively good bubbling resistance and demulsibility, and is very ideal steam turbine oil.

The invention discloses high-performance fully-synthetic wind power gear oil. The wind power gear oil comprises base oil and additives, wherein the base oil is polyol ester, and the additives comprisean antioxidant, a demulsifying agent, a pour point depressant, an antirust agent, an extreme-pressure anti-wear agent, a detergent dispersant, a defoaming agent and a metal deactivator. The inventionalso provides a preparation method of the wind power gear oil. The preparation method comprises the following steps: carrying out an esterification reaction on polyol monoester and fatty acid to synthesize polyol ester, blending the polyol ester to obtain the base oil, adding the additives into the base oil, and conducting mixing to obtain the environment-friendly fully-synthetic wind power gearoil. According to the invention, the wind power gear oil has good compatibility with various additives and can be widely applied to a wind power gear oil tank; the gear oil has very long service lifeeven under severe working conditions; the high viscosity index and good shear stability of the gear oil are guaranteed; the lubricating requirement of a gear box used in a very wide viscosity range ismet; pitting corrosion can be effectively avoided or inhibited; and normal operation of a large heavy-duty mechanical gear transmission device is guaranteed.

A fuel additive and its preparation for a engine, a fuel containing the additive, a fuel additive concentrate, a method for improving performance of fuel injectors and a method for cleaning fuel injectors for an engine. The fuel additive includes a quaternary ammonium salt derived from a reaction of a hydrocarbyl substituted anhydride, a tertiary amine and a hydroxyl-containing epoxide, wherein the tertiary amine is devoid of primary and secondary amino groups.

The invention provides a viscosity reducer for chlorinated natural rubber waterborne paint. The viscosity reducer is obtained by taking Mg(NO3)2.6H2O, Fe(NO3)3.9H2O and sodium lignosulfonate as the raw materials, and under pH of 8.0-10.5 and a temperature of 90-110DEG C, carrying out reaction for 6-36h. The viscosity reducer is a lignosulfonate radical-magnesium iron hydrotalcite compound, and thelignosulfonate radical anions in the compound are embedded into the magnesium iron hydrotalcite inorganic laminates. The lignosulfonate radical-magnesium iron hydrotalcite compound can destroy a hydrogen bond network system between chlorinated natural rubber and inorganic filler so as to effectively reduce the viscosity of chlorinated natural rubber waterborne paint, and at the same time does notcause demulsification and phase separation of chlorinated natural rubber waterborne paint.

The demulsifier for demulsification of penicillin fermenting liquor is characterized by that it is made from 50-80% of acidamide, 20-50% of alkylamine polyethenoxy ether and 0-20% of additive by mixing. It overcomes the defect of demulsifier formed by simple-kmixing deic acid, polyethylene amine and alkyl diethanolamine, and possesses strong desmulsification power, not only possesses high demulsification efficiency, but also can economize production cost, and can raise yield, can make yield stable in above 94%, and has good impurity-removing rate.

The invention relates to a dewatering power supply for rectangular-wave alternating-current crude oil. The power supply consists of a main circuit 1, a control circuit 6 and an optimal control circuit 9 which are connected in series, wherein a full-bridge uncontrollable rectifying and filtering circuit 2, a voltage regulation circuit 3, a rectangular wave generating circuit 4 and an intermediate frequency transformer 5 in the main circuit 1 are sequentially connected in series; the control circuit 6 comprises a voltage regulation and control circuit 7 using a TL494 pulse width modulation chip as a core and a rectangular wave generation and control circuit 8 based on an SG3525 pulse width modulation chip and is responsible for the disconnection of IGB devices in the voltage regulation circuit 3 and the rectangular wave generating circuit 4 so as to regulate the output voltage, frequency and duty ratios; the optimal control circuit 9 consists of an industrial control touch screen 10 and a PLC control circuit 11 which are connected in series; the industrial control touch screen 10 is used as a man-machine interface for transmitting parameters or recipe data input by users to a PLC and displaying power supply running information in real time according to signals provided by the PLC; and the PLC control circuit 11 is responsible for receiving information input by external circuits, carrying out processing by software and outputting voltage control signals to the voltage regulation and control circuit 7 and the rectangular wave generating and control circuit 8.

A composition comprising: (a) 0.001% to 5% of at least one compound of formula (I) or a zwitterionic form or salt thereof, wherein R<1 >is C10-C22 alkyl or aralkyl; R<2 >and R<3 >independently are hydrogen or C1-C4 alkyl; R<4 >is hydrogen, C1-C22 alkyl, C7-C22 aralkyl, or -CH(R<5>)CH(R<6>)COOH, wherein R<5 >and R<6 >independently are hydrogen or C1-C4 alkyl; and (b) crude oil.

A composition comprising: (a) 0.001% to 20% of at least one compound having: (i) at least one carboxyl group; (ii) at least one amide group; and (iii) at least fifteen carbon atoms; and (b) crude oil; provided that the compound is not represented by formula (I) wherein R<1 >and R<2 >independently are hydrogen or C1-C22 alkyl and n is one or two.

A composition useful for dispersing asphaltenes in crude oil comprising: (a) 0.001% to 20% of at least one reaction product of (i) an imine; and (ii) an organic acid; and (b) crude oil.

The invention relates to a metal ceramic lubricating oil couplant, which is composed of: 2-16% of metal ceramic; 1-9% of shielding phenol; 1-8% of diphenylamine; 2-9% of ethoxyphenol; 2-12% of benzotriazole; 1-11% of polymethacrylate; 2-12% of phosphorodithioate; 1-11% of polyalkoxyphenol; 1-12% of polyisobutylene succinate; 1-11% of sulfurized isobutylene; and the balance base oil. The invention adopts the boride base metal ceramic, which has high hardness and melting point, low density and is resistant to corrosion, abrasion and extreme pressure. Thus, the prepared product has strong thermal stability, good high temperature extreme pressure performance, strong oxidation resistance, high wear resistance, and strong demulsification ability.

The invention relates to a polymer-containing oil-field wastewater treating agent belonging to the technical field of oil-field wastewater treatment. The polymer-containing oil-field wastewater treating agent is characterized by comprising the following components by mass percent: 80-90% of PAC (Polymeric Aluminum Chloride), 5-10% of organic positive ion high polymer, and 5-10% of polyquaternium anti-phase demulsifying agent. The polymer-containing oil-field wastewater treating agent provided by the invention is prepared by using a compound method; the water treating agent has very strong flocculation and demulsification effect, and the organic impurities and emulsified oil contained in the oil-field wastewater can be effectively eliminated; and the polymer-containing oil-field wastewater treating agent has the advantages of simple component, convenience in preparation, high speed and efficiency, low cost, wide application range, high demulsification efficiency, small use amount, no toxic and side effect, obvious water purification and the like.

The invention discloses a method for preparing synthetic hydrocarbon containing aromatic hydrocarbon from internal olefin, and belongs to the technical field of synthetic hydrocarbon preparation. The method is as follows: the synthetic hydrocarbon containing the aromatic hydrocarbon is obtained by carrying out an alkylation reaction under the action of an aluminium trichloride catalyst and a cocatalyst by taking alkylbenzene and the internal olefin as raw materials; the number of carbon atoms contained in the alkyl of the alkylbenzene is 1-260, and the internal olefin contains 8-14 carbon atoms; and the prepared synthetic hydrocarbon containing the aromatic hydrocarbon achieves the aromatic hydrocarbon of 5%-10% by weight, the pour point of -28 to -42 DEG C, the flash point of 250-300 degrees, the kinematic viscosity of 22-110 and the viscosity index of 130-180. The method disclosed by the invention has the advantages of wide raw material source and low price; and the prepared synthetic hydrocarbon not only has all the property of PAO synthetic hydrocarbon oil, but also has the characteristics of alkylbenzene synthetic oil, does not need high temperature and high pressure in a production process and is energy-saving and environment-friendly.

The invention discloses a reusable lubricating oil filtering device which comprises an oil feed pump, an oil drain pump, an infrared heater, an oil-water separator, a vacuum stereoscopic separating tank and a water circulating condensation separation device, wherein the oil-water separator is connected with the oil feed pump through the infrared heater; a coarse filter is arranged between the oil-water separator and the infrared heater; the upper end of the vacuum stereoscopic separating tank is connected with the oil-water separator and the water circulating condensation separation device; and the lower end of the vacuum stereoscopic separating tank is connected with the oil drain pump. The reusable lubricating oil filtering device disclosed by the invention can be used for carrying out dewatering and impurity removal on oil products seriously containing water or muddy emulsive oil products, improving the kinematical viscosity, flash point and demulsibility of the oil products, lowering the oil consumption cost and reducing the equipment failure rate.

The invention provides an accurate qualitative and quantitative detection method for an oil adjuvant vaccine. The accurate qualitative quantitative detection method comprises the following steps of demulsifying the oil adjuvant vaccine, performing quantitative analysis on a demulsified antigen sample, meanwhile, purifying by adopting the means of gel electrophoresis, and then performing qualitative detection on the purified antigen sample; a demulsifying method comprises the following steps of mixing the oil adjuvant vaccine and a demulsifying agent and obtaining an aqueous phase antigen sample after the mixture is layered; the demulsifying agent comprises a mixture of an organic solvent and an acid, wherein the organic solvent is selected from one of acetonitrile, n-butyl alcohol, benzyl alcohol, butyl diethylene glycol and ethyl alcohol; and the acid is selected from one of hydrochloric acid, acetic acid, methanoic acid and trifluoroacetic acid. The demulsifying method provided by the invention is high in demulsifying capacity; the antigen can be enabled to be mainly distributed into the aqueous phase; the aqueous phase can be completely separated from an oil phase; the content and the quality of the effective antigen in the vaccine can be truly reflected; the demulsified antigen is separated and purified through electrophoresis; and the purity of the antigen is improved.

The invention relates to a demulsifier composition and lubricating oil. The demulsifier composition comprises a tritolyl phosphate demulsifier and a polyether demulsifier, wherein the mass ratio of the tritolyl phosphate demulsifier and the polyether demulsifier is 4:1-6. The demulsifier composition is used in worm and gear oil, and has better water separation effect when compared with single use of one demulsifier type.

The invention provides environment-friendly synthetic refrigerating machine oil. The environment-friendly synthetic refrigerating machine oil is composed of polyol ester and additives, wherein the additives comprise an antioxidant, a pour point depressant, an acid catching agent, an extreme-pressure anti-wear agent, a cleaning dispersant, a defoaming agent and a metal deactivator. The invention further provides a preparation method of the environment-friendly synthetic refrigerating machine oil. Base oil of the environment-friendly synthetic refrigerating machine oil is one or more polyol esters synthesized by an esterification reaction of polyol monoester and fatty acid; then the one or more polyol esters synthesized by the esterification reaction are subjected to mixing and intersolubility blending so as to obtain the base oil; and a plurality of the additives are added into the blended base oil, and mixing and stirring are conducted to obtain the environment-friendly synthetic refrigerating machine oil. The synthesized refrigerator oil has good compatibility with various additives, and can be widely applied to refrigerators taking ammonia series, chlorofluorocarbon, hydrochlorofluorocarbon or isobutane as refrigerants. The synthetic refrigerating machine oil also has good chemical stability, lubricity, thermal stability and oxidation stability.

The invention discloses a preparation method of a multi-branched cationic polyether reverse demulsifier. Bisphenol A is used as a block polyether initiator, phenolic hydroxyl ortho-hydrogen, formaldehyde and vinylamine undergo an amine methylation reaction to generate a polyamine compound with bisphenol A serving as a core, vinylamine serving as a branch and a phenolic hydroxyl group as a leaf, the polyamine compound and epoxy compounds such as epoxypropane and ethylene oxide undergo a ring opening polymerization reaction to produce a multi-branched polyether, and further the tail end of the multi-branched polyether is subjected to modification with different cationization degrees to obtain the multi-branched cationic polyether reverse demulsifier. The prepared multi-branched cationic polyether reverse demulsifier is higher in deoiling rate and demulsifying efficiency and better in demulsifying capacity, and can well make up for the functional defects of a traditional demulsifier, theoil exploitation cost can be effectively reduced, energy is saved, emission is reduced, and development of an oil exploitation process is facilitated.