292 results about "Oil additive" patented technology

The invention discloses a preparation method of a modified lubricating oil additive containing graphene-silicon dioxide, which comprises the following steps: preparing an RGO / SiO2 nano composite material additive with SiO2 grafted on graphene by a hydrothermal method, and adding oleic acid (OA) to participate in a hydrothermal reaction to prepare an OA-RGO / SiO2 nano composite material additive with SiO2 and OA grafted on graphene; according to the preparation method, the morphology size of the lubricating oil additive is optimized, and the tribological performance and dispersion stability of the lubricating oil additive are improved; the microstructure of the composite material is observed through an SEM scanning electron microscope, it is found that a sheet layer on the surface of the composite material added with oleic acid is thinner and wrinkled, the particle size of nano particles is smaller, the nano particles are wrapped by the sheet layer more tightly, and the nano particle diameter of the OA-RGO / SiO2 additive is reduced by 18.42% compared with that of an RGO / SiO2 additive; in a contact angle test, the nano additive in which oleic acid participates in a hydrothermal reaction can further reduce the surface energy of the nano additive, and the contact angle is greatly reduced.

The invention relates to the technical field of fuel additives, in particular to a fuel additive as well as a preparation method and application thereof. Comprising the following components in parts by weight: 60 to 220 parts of bis-polyether amine, 10 to 20 parts of polyisobutene amine, 5 to 15 parts of polyether polyol, 5 to 30 parts of alkyl amine alcohol, 0.5 to 20 parts of polybasic fatty acid ester, 0.5 to 20 parts of alkyl acid ester, 10 to 30 parts of a catalyst, 2 to 7 parts of an antioxidant, 5 to 10 parts of a corrosion inhibitor and 10 to 50 parts of carrier oil. A small amount of the fuel additive is mixed with gasoline or diesel oil, and through bis-polyether amine and polyisobutene amine, combustion of fuel oil in a combustion chamber of an internal combustion engine is improved, more complete combustion of the gasoline or the diesel oil is promoted, the combustion efficiency of the fuel oil is enhanced, the oil consumption is reduced, and the economical efficiency of the fuel oil is improved; and air pollution caused by emission of hydrocarbon or combustion intermediate products is reduced.

The invention relates to the technical field of marine fuel oil additives, and particularly provides a marine fuel oil purification synergist and a preparation method thereof. The marine fuel oil purification synergist comprises the following components in percentage by mass: 8%-12% of a sulfur capturing agent, 15%-20% of a core-shell dispersing agent, 5%-8% of a lubricating agent, 0.5%-1% of an antioxidant, 1%-2% of a pour point depressant and the balance of a solvent. The marine fuel oil purification synergist has the advantages of high flash point, sulfur inhibition, combustion enhancement and dispersion stability. The multi-component synergistic system not only greatly improves the combustion efficiency of the marine fuel oil, but also effectively inhibits the emission of harmful substances, obviously reduces the carbon deposition and wear of an engine, and keeps the cleanliness of a fuel oil system. In practical application, the synergist shows excellent environment-friendly benefits and economic benefits, and a green fuel solution which can meet increasingly strict requirements of environment-friendly laws and regulations and can reduce the operation cost is provided for the ship industry.

The utility model belongs to the technical field of lubricating oil additive filling, and particularly relates to a lubricating oil additive finished product filling device which comprises a base, supporting legs are arranged at the four corners of the bottom of the base, a filling mechanism is installed on the top of the base, and the rear end of the filling mechanism is communicated with a stirring mechanism. And a conveying mechanism is arranged below the filling mechanism. According to the filling mechanism disclosed by the utility model, the lubricating oil additive can be quickly filled through the cooperative operation of the liquid pump, the hose, the connecting pipe and the filling head. The electric telescopic rod can adjust the height of the filling head to adapt to filling containers of different specifications, and the universality of the equipment is improved; the electromagnetic valve can accurately control opening and closing of each filling head, and the accuracy of the filling amount is ensured.

The application provides an acid ester composite diesel anti-wear agent and a preparation method thereof, and belongs to the technical field of diesel additives, and comprises the following steps: S1, preparing a silanized solid acid catalyst; S2, preparing C18 polyol ester; S3, mixing an acid type anti-wear component and the C18 polyol ester, and then stirring after heating, and then adding tetrahydropyrazole pyridine derivatives and a diluent to continue stirring, and then cooling and filtering to obtain the acid ester composite diesel anti-wear agent. The application can improve the lubricity and anti-wear performance of low-sulfur diesel at a lower additive dosage, and has low corrosion and good oxidation stability.

The invention discloses a diesel additive and a preparation method thereof. The diesel oil additive comprises the following raw material components in percentage by mass: 1-5% of a function improver, 0.5-1% of an antioxidant, 0.1-0.3% of a dispersing agent and the balance of base oil. The invention also provides a preparation method of the diesel oil additive, and the diesel oil additive is prepared by mixing the raw material components. Compared with the prior art, the prepared diesel oil additive has the advantages of being good in anti-wear lubrication and low-temperature fluidity, small in additive amount, wide in adaptability, high in stability and the like, and the preparation method is easy and convenient to operate, low in cost and suitable for large-scale production.

The present invention discloses a lubricating oil additive for a flexible fuel engine, which comprises the following raw materials: overbased calcium alkyl salicylate, overbased sulfurized calcium alkylphenate, 4-pyridine ethylpropylene polymer, alkyl diphenylamine, 2,6-di-tert-butyl a-dimethylamino-p-cresol, and nano boron nitride BNNS. The present invention also discloses a lubricating oil composition for a flexible fuel engine, which comprises the above-mentioned lubricating oil additive for a flexible fuel engine, and further comprises an emulsifier and a base oil. The present invention can solve the key problem that a large amount of water is generated during the work combustion process of a flexible fuel engine, resulting in hydrolysis of dispersants, friction reducers and anti-wear agents in engine oil, damage to the molecular structure and loss of lubricating function. At the same time, it also solves the technical problem of difficult low-temperature cold start of a flexible fuel engine caused by water.

The invention provides a diesel oil anti-wear agent and a preparation process thereof, and belongs to the technical field of diesel oil additives, and the preparation process comprises the following steps: mixing and stirring diisooctyl maleate and xylene, adding diethylenetriamine and deionized water, carrying out heating reaction, adding toluene, 4-(aminomethyl) pyridine and ethylene oxide, carrying out mixing reaction, filtering, washing, and drying to obtain the diesel oil anti-wear agent. The pyridinium-based polyester hollow capsule is prepared; the preparation method comprises the following steps: mixing xylene, catechol, ethylene phosphonic acid, ammonium persulfate and deionized water, heating, dispersing in cyclohexane, adding polyvinyl alcohol, octadecyl methacrylate and azodiisobutyronitrile, mixing and reacting to obtain catechol phosphonate nano colloidal particles; mixing and stirring the fatty acid ester solution, the oleoyl fluorocarbon copolymer and the pyridinium-based polyester hollow capsule, adding the catechol phosphonate nano colloidal particles, continuously stirring, performing ultrasonic treatment, and degassing to obtain the diesel oil anti-wear agent. The diesel oil antiwear agent can improve the antiwear property and demulsibility of the diesel oil antiwear agent.

The invention provides a nitrogen-containing boric acid ester-nano hybrid composite anti-wear additive as well as a preparation method and application thereof, and belongs to the technical field of lubricating oil additives. The nitrogen-containing boric acid ester, the functionalized nanoparticles, the ionic liquid, the auxiliary anti-wear agent and the dispersion stabilizer are subjected to nano-scale hybrid compounding, and the nitrogen-containing boric acid ester, the functionalized nanoparticles, the ionic liquid, the auxiliary anti-wear agent and the dispersion stabilizer have a synergistic effect on four aspects of physical bearing, chemical adsorption, interface modification and extreme pressure enhancement; a multi-synergistic lubrication and protection system of an adsorption film, a physical isolation layer, an extreme pressure reaction layer and rolling lubrication microspheres is constructed, efficient wear resistance, friction reduction, bearing and stability improvement are jointly achieved, and the lubricating oil is suitable for insoluble base oil.

The invention belongs to the technical field of automotive diesel additives, and particularly relates to a power boosting type diesel additive as well as a preparation method and application thereof. The additive contains 10-30 g / L of an organic lanthanum peroxide component in terms of La, and is a solution prepared from lanthanum carbonate or lanthanum oxide, acetylacetone, hydrogen peroxide and an inert and hydrophobic hydrocarbon solvent; in the preparation raw materials, the molar ratio of La to acetylacetone to H2O2 is 1: (3.0-3.2): (3.3-3.5); the hydrocarbon solvent is composed of a solvent A and a solvent B, the normal-pressure boiling point of the solvent A is 75-100 DEG C and accounts for 20-40 wt% of the total amount of the hydrocarbon solvent, and the normal-pressure distillation range of the solvent B is 70-300 DEG C. The additive is suitable for being added into vehicle diesel oil of a gas station, the adding amount is 0.05-2 v per thousand, the power performance of a diesel oil vehicle can be remarkably improved, and the additive has a certain application prospect.

The invention addresses the instability and toxicity of organometallic compounds used as fuel additives, which can pose environmental and health risks during handling. While these additives improve fuel combustion, efficiency, and reduce emissions by increasing octane, their handling exposes humans and the environment. This invention provides a formulation, coating process (spraying, immersion, extrusion, powder coating), and testing method to prevent direct contact. Coatings, comprising organic hydrocarbons, do not hinder octane enhancement, ensure deposit-free release in fuel tanks, and clean the fuel system. The coating also prevents sublimation during storage. Performance is evaluated by measuring weight loss under vacuum.

The utility model belongs to the technical field of stirring equipment, and particularly relates to a propanil missible oil additive stirring device which comprises a stirring barrel, a sealing cover is mounted on the top surface of the stirring barrel, a motor is fixedly mounted on the top surface of the sealing cover, the output end of the motor is fixedly connected with a stirring shaft, one end of the stirring shaft extends into the stirring barrel, and the other end of the stirring shaft extends into the stirring barrel. A feeding pipe is fixedly connected to the outer surface of the stirring barrel, a discharging pipe is fixedly mounted on the bottom surface of the stirring barrel, and a second gear is fixedly mounted on the outer surface, located outside the stirring barrel, of the stirring shaft; by arranging a clamping plate, when a gear I rotates, the clamping plate can be driven to move back and forth in a connecting funnel under the action of a connecting plate, and an additive in a feeding box leaks into a feeding pipe through a leakage groove, finally enters a stirring barrel and is mixed with raw materials in the stirring barrel; therefore, the purpose of intermittently adding the additive into the stirring barrel is achieved.

The application belongs to the technical field of lubricating oil additives, and particularly relates to a polyisobutylene succinimide dispersant as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing polyisobutylene maleic anhydride, base oil and aromatic hydrocarbon solvent, then adding aminobenzene boronic acid, and performing reaction by increasing temperature to reflux temperature, and obtaining the polyisobutylene succinimide dispersant after filtration. The polyisobutylene succinimide dispersant is prepared by using polyisobutylene maleic anhydride and aminobenzene boronic acid, the molecular structure of the polyisobutylene succinimide dispersant contains not only an aromatic ring but also an oxygen-containing benzene boronic acid group, the aromatic ring and the benzene boronic acid group both have a good adsorption effect on soot particles, and the ability of the polyisobutylene succinimide dispersant to disperse soot is improved. The performance test results show that the oil product prepared by using the polyisobutylene succinimide dispersant of the application not only improves the soot dispersion performance of the oil product, but also improves the high-temperature detergency of the oil product, and the preparation process is simple and easy to implement.

The utility model relates to the technical field of reaction kettles, in particular to a reaction kettle for purifying lubricating oil additives, which comprises a lifting and storing tank, a feeding pipe, a discharging component and stirring blades, an air pressure balance tank is mounted on the upper side of the lifting and storing tank, and a first exhaust pipe is arranged at one end of the upper side of the lifting and storing tank; a first air pump is installed at one end of the first air suction pipe, a first air outlet pipe is installed at one end of the lower side of the air pressure balance tank, a second air outlet pipe is arranged at the other end of the upper side of the lifting and storing tank, and a second air pump is installed at one end of the second air outlet pipe. The discharging component is detachable, the reaction kettle is convenient to clean after the purification reaction, the detachable filtering structure is arranged, the use convenience is improved, the air pressure in the extraction and storage tank is adjusted through the air pressure balance tank, the flatness and stability of the air pressure in the extraction and storage tank in the working process are improved, and the purification reaction efficiency is improved.

The utility model relates to the technical field of lubricating oil additive proportioning, and discloses a lubricating oil additive proportioning device which comprises a supporting plate, a circular plate, a proportioning box and a lifting mechanism, a material box is arranged on the supporting plate, and according to the lubricating oil additive proportioning device, the circular plate is arranged at the bottom end of a branch pipe body of a material guide pipe; a matching box rotationally connected with the circular plate is arranged below the supporting plate, a discharging control mechanism is arranged at the bottom of a material cavity of the matching box, a plurality of connecting rods are arranged on the lifting mechanism, a discharging barrel is arranged at one end of each connecting rod, and additives in a material box are guided into the multiple material cavities of the matching box through a material guiding pipe. When an additive with a required amount is needed, only the proportioning box needs to be rotated to be switched to the material cavities with the corresponding required amount, then the additive is guided out through cooperation of the discharging barrel and the discharging control mechanism, after the proportioning box is rotated, the empty material cavities can be automatically filled through the material guiding pipe, repeated weighing by workers is not needed, time is greatly saved, and the working efficiency is improved.

The present invention provides a thiadiazole compound containing a hindered phenol group, a preparation method thereof and its use in the field of lubricating oil additives. The preparation method of the thiadiazole compound containing a hindered phenol group comprises the following steps: mixing a carboxylic acid compound containing a hindered phenol group with thionyl chloride, removing impurities under reduced pressure to obtain an acyl chloride compound containing hindered phenol; stirring and mixing 2-mercapto-5-amino-1,3,4-thiadiazole with a halogenated hydrocarbon compound, filtering, washing and drying to obtain a 2-mercapto-5-amino-1,3,4-thiadiazole derivative; adding a hindered phenol acyl chloride compound, 2-mercapto-5-amino-1,3,4-thiadiazole derivative and an alkaline additive to an organic solvent, washing, drying and purifying to obtain a thiadiazole compound containing a hindered phenol group. The thiadiazole compound containing a hindered phenol group is an antioxidant, extreme pressure and anti-wear additive, which can be applied to synthetic ester lubricants and has a good antioxidant, extreme pressure and anti-wear effect.

The invention discloses octyl vanillate as well as a preparation method and application thereof, and relates to the field of insulating oil additives. According to the invention, vanillic acid and n-caprylic alcohol are subjected to esterification reaction under the action of the bio-enzyme catalyst to synthesize octyl vanillate, and the synthesis method is efficient, green, environment-friendly and low in cost. The prepared octyl vanillate is added into the synthetic ester insulating oil as an antioxidant active component, a long ester chain in the octyl vanillate has high thermal stability, the oxidation of the synthetic ester insulating oil can still be effectively inhibited at high temperature, and the compatibility between the octyl vanillate and the synthetic ester insulating oil is good. Therefore, compared with traditional antioxidants, the synthetic ester insulating oil has remarkable advantages in the aspect of maintaining excellent oxidation resistance and electrical performance of the synthetic ester insulating oil.

The invention discloses an oil-soluble Mo-functionalized graphene composite material as well as a preparation method and application thereof, and belongs to the field of lubricating oil additives. The preparation method comprises the following steps: (1) mixing a Mo-functionalized graphene composite material with an organic solvent, and performing ultrasonic treatment to form a solution A; (2) adding an amine reducing agent into the solution A, carrying out reduction reaction, filtering and washing to obtain a filter cake; and (3) mixing a long-chain organic compound, a coupling agent and a surfactant, performing ultrasonic treatment to form a mixed solution B, performing ultrasonic dispersion on the filter cake into the mixed solution B, and performing heating treatment, cooling, filtering, washing and drying to obtain the oil-soluble Mo-functionalized graphene composite material. Through partial reduction and chemical grafting processes, the Mo-functionalized graphene composite material is subjected to selective reduction firstly, then a coupling agent is utilized to graft a long-chain organic compound to the surface of the composite material, and an oil-soluble group is introduced, so that the dispersion stability and the anti-wear and anti-friction performance in lubricating oil are remarkably improved.

The present invention discloses an anti-wear and anti-oxidation lubricating oil additive, its preparation method, and its application. This invention relates to the field of lubricating materials technology and addresses the problem of unsatisfactory thermal oxidation stability of existing lubricating oil additives. The anti-wear and anti-oxidation lubricating oil additive comprises a compound represented by Formula I: #imgabs0#, where R is an alkali metal or alkaline earth metal. The additive provided by the present invention exhibits excellent thermal oxidation stability.

The invention belongs to the technical field of lubricating oil additives, and particularly relates to an anti-foaming agent and a preparation method and application thereof. The anti-foaming agent provided by the invention is a copolymer of a monomer 1 and a monomer 2, the monomer 1 comprises 2-ethylhexyl acrylate, and the monomer 2 comprises one or two of ethyl acrylate, styrene and butyl acrylate. The anti-foaming agent provided by the invention has good thermal stability and can adapt to long-term use in a higher-temperature environment; meanwhile, the anti-foaming agent provided by the invention has good compatibility with mineral oil, synthetic oil and other oil substances, and can be uniformly dispersed in lubricating oil. The anti-foaming agent provided by the invention has an excellent anti-foaming effect when being used in high-viscosity lubricating oil.

The utility model provides a dust recovery mechanism for producing a lubricating oil additive, and belongs to the technical field of dust recovery mechanisms. Comprising a dust suction box and a dust suction frame fixed to the bottom end of the side wall of the dust suction box, a filter plate is fixedly embedded in the top end of the dust suction box, a baffle is fixed to the center of the bottom wall of the dust suction box, a conveying frame is fixed to the top end of the baffle, and a flow guide plate of an arc-shaped structure is installed at the top end of the conveying frame; a water conveying mechanism connected with the conveying frame is arranged at the center position of the baffle. The water pump enables water flow to flow along the conveying frame, the water outlet groove and the top wall of the flow guide plate through the conveying pipe, water curtains are formed on the two sides of the baffle, the draught fan in the dust collection frame enables air to enter the dust collection box after being started, dust carried in the air is adsorbed by the water curtains and flows downwards, the dust in the air is conveniently adsorbed, and the dust collection efficiency is improved. Dust needing to be filtered by the filter plate is greatly reduced, and the situation that the filter plate is blocked by the dust is reduced.

The embodiment of the invention provides a method for preparing high-performance heavy alkyl benzene sulfonic acid barium salt by modifying a heavy alkyl benzene raw material, and relates to the technical field of synthesis of lubricating oil additives. The method for preparing the high-performance heavy alkyl benzene sulfonic acid barium salt by modifying the heavy alkyl benzene raw material comprises the following steps: S1, selecting narrow-fraction long-straight-chain alpha-olefin with the carbon number range of C10-C14 as an alkylating agent, and carrying out Friedel-Crafts alkylation reaction on the alkylating agent and benzene in the presence of a Lewis acid catalyst at the reaction temperature of 30-70 DEG C according to the molar ratio of the benzene to the alpha-olefin of 3: 1-8: 1; the reaction time is 1-4 hours, and after the reaction is completed, carrying out hydrolysis, layering and distillation purification; by physically mixing the narrow-fraction long-straight-chain alpha-olefin synthesized heavy alkylbenzene with regular structure and low branching degree with commercially available heavy alkylbenzene, the molecular homogeneity of the raw material is optimized, the reaction consistency and the salifying stability are improved on the premise of not changing the existing process, and the barium heavy alkylbenzene sulfonate product with better damp-heat and salt spray performance is prepared.

A lubricating oil additive composition including: (i) a Broensted acid salt of at least one first amide compound, the Broensted acid salt being a salt of the first amide compound and a Broensted acid, the first amide compound being a monoamide of at least one fatty acid (a1), and at least one amine compound (a2), the amine compound (a2) being an oligomer of at least one alkanolamine (a3) represented by the general formula (1):in the formula, n is 1 or 2; R1 is C1-4 linear chain alkylene or C3-10 branched chain alkylene, the C3-10 branched chain alkylene having a main chain, the main chain having a carbon number of 2; and when n is 2, a plurality of R1's may be the same, and may be different from each other.

The utility model relates to the field of petroleum additive production equipment, in particular to an oil-based petroleum additive diluting device which comprises a diluting tank, a lower liquid inlet pipe extending into the diluting tank is arranged at the lower end of the diluting tank, a liquid distribution disc is arranged at the upper end of the lower liquid inlet pipe, a plurality of liquid outlets are formed in the side face of the liquid distribution disc, and a conical flow guide block is arranged at the upper end of the liquid distribution disc. An upper liquid inlet pipe extending to the upper part of the diluting tank is vertically arranged above the conical flow guide block; and a liquid outlet valve is arranged at the lower end of the diluting tank. The device has the advantage of uniform dilution.

The utility model relates to the technical field of feed production, and discloses grease adding equipment for livestock and poultry feed production, which comprises a support column and a bottom block, and the bottom block is fixedly arranged above the support column; a supporting mechanism is fixedly installed above the bottom block, a hollow frame is fixedly installed above the supporting mechanism, and a first sealing ring is movably installed in one end of the hollow frame. According to the device, grease is placed in the material storage barrel after the first valve is closed, the first valve is opened to enable the grease to flow into the feeding hopper, the feeding hopper moves downwards due to weight increment and drives the downward pressing frame and the first sealing ring to move downwards, and the grease in the feeding hopper is discharged into the material receiving box. The bottom of the valve I is gradually closed, so that the cost increase caused by the damage of the electronic scale can be avoided, the working efficiency of the device is improved, and the use cost of the device is reduced. Through the technical scheme, the problems of high cost and solidification in the prior art are solved.

The application discloses a kind of quaternary ammonium mannich base, quaternary ammonium mannich base multifunctional fuel additive and its preparation method and application.The quaternary ammonium mannich base, its structural formula is as shown below:Wherein, m=10~90, preferably m=15~80;N=0~20, preferably n=2~10;R1, R2, R3 same or not same, respectively independently H or C1-C4 alkyl;R4 is H, CH3 Or C2H5;R5 is C3-C8 alkyl or aryl, preferably C3-C8 alkyl;R6 is CH3 Or C2H5;X is SO4 Or CO3.The multifunctional fuel additive comprising quaternary ammonium mannich base of the application not only has good dispersibility, has the effect of reducing the accumulation amount of vehicle engine carbon deposit, but also can effectively reduce the balance point temperature, solve diesel engine particulate filter (DPF) passive regeneration failure, reduce the number of active regeneration, prolong regeneration mileage.

The application discloses a combustion-supporting and corrosion-preventing type colloidal magnesium-based heavy oil additive and a preparation method thereof. The heavy oil additive is prepared from the following components in parts by weight: magnesium oxide 50-80 parts, bentonite 10-15 parts, lime powder 5-10 parts, nano silicon dioxide 10-15 parts, basic copper chloride 5-10 parts, diaspore powder 10-15 parts, sodium dodecyl benzene sulfonate 2-8 parts, hydrocarbon solvent 2-8 parts, combustion-supporting dispersant 2-8 parts, and water 80-100 parts. The additive can inhibit the combustion of sulfur in the heavy oil to generate sulfur oxides, low-temperature sulfur corrosion and the synergistic corrosion of HCl. In the low-temperature section, the basic components such as lime powder react with HCl to generate salt compounds, neutralize the acidic substances in the flue gas, and significantly increase the pH value to above 8, thereby preventing the low-temperature dew point corrosion of the tail heating surface.

The invention discloses a fuel additive filling device based on unpowered mechanical mixing. The fuel additive filling device comprises a base frame body, and a fuel additive storage tank is arranged on the base frame body; and a mixer is also arranged on the base frame body. The mixer comprises a main cylinder, quick coupling structures are arranged at the two ends of the main cylinder, one end serves as a fuel oil inlet and is used for being connected with an output pipeline of an oil discharging well, and the other end serves as a discharging opening and is used for being connected with an input pipeline of a storage tank for storing a fuel oil and additive mixture. A fuel additive inlet is formed in the cylinder wall of the main cylinder body, a multi-branch liquid injection pipe is arranged in the main cylinder body, and the multi-branch liquid injection pipe is communicated with the fuel additive inlet; a spiral shifting piece structure is arranged in the main barrel and located on one side of a fuel oil inlet of the multi-branch liquid injection pipe, after fuel oil enters the mixer, spiral fuel oil flow is formed under the action of the spiral shifting piece structure, and then the spiral fuel oil flow is spirally mixed with a fuel oil additive output by the multi-branch liquid injection pipe.

The invention belongs to the technical field of fuel additives and clean energy. The invention provides a fuel oil additive, which is prepared from 40 to 60 parts of fatty acid ester, 10 to 20 parts of alcohol ether compounds, 1 to 3 parts of nanometer oxides, 2 to 4 parts of surfactants, 1 to 2 parts of oxidation stabilizers, 2 to 3 parts of sodium benzoate, 1 to 2 parts of 2, 6-dimethyl pyridine, 0.5 to 1 part of metal organic catalytic combustion improvers and 20 to 30 parts of solvent oil. The fuel additive can significantly improve the fuel combustion efficiency, reduce the fuel consumption, reduce the emission of CO, HC, NOx and soot, and improve the combustion stability and storage performance. The additive selects part of bio-based raw materials, has the characteristics of energy conservation, emission reduction, greenness and low carbon, is suitable for the field of combustion-supporting modification of gasoline, diesel oil and biofuel, and has good environmental benefits and application prospects.