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 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 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.

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 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.

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 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 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.