TWI398512B - Compound emulsion fuel solvents, compound emulsion fuel solutions produced with the solvents and water, the method of producing the solvents and solutions, and their applications - Google Patents

Description

Composite fuel emulsion, composite emulsion fuel prepared by emulsifying emulsion and water, and preparation method and application of emulsion and emulsion

The present invention relates to a composite fuel emulsion and a preparation method thereof, characterized in that the composite fuel emulsion comprises a composite fuel emulsion and an aqueous phase component, in particular, the composite fuel emulsion comprises an emulsifier, a combustion improver, a stabilizer, and an anti-wear agent. a composite of an oxidizing agent, an antifoaming agent, an antifreezing agent and a fuel oil, which is blended with the aqueous phase component and subjected to shear treatment at room temperature by an emulsifying device, wherein the emulsion has a high calorific value, It has good emulsification stability, few residue and less pollutants, and is suitable for energy supply. The present invention relates to liquid carbonaceous fuels and gaseous fuels in the chemical category.

Based on the depletion of fuel oil sources and the increasing environmental pollution, the search for and breakthrough of alternative energy sources is imminent. At present, fossil fuels are still the main source of energy supply, and are widely used in steam locomotives, industrial boilers or diesel engines, and domestic kitchen bath equipment.

Fuel oil bottleneck

The pollutants produced by the combustion of fuel oil mainly include soot particles, carbon oxides (COx), nitrogen oxides (NOx) and sulfur oxides (SOx), which not only cause damage to the ozone layer, but also acid rain and greenhouse effect. Deterioration, the smoke generated by soot particles and NOx can damage the respiratory system and visual system of animals, and impede the environmental line of sight; exhaust gases such as NOx and SOx will be further oxidized to produce corrosive properties such as HNO ₃ and H ₂ SO ₄ . Strong acid damages the walls of the combustion chamber.

The liquefied petroleum gas commonly used in household kitchen equipment is a mixture of propane and butane. At present, the main source is the cracking of oil and gas fields or coal. Among them, the liquefied petroleum gas prepared by the cracking of coal often contains a large amount of unsaturated olefins. After combustion, there is a problem of coking or accumulation of coke, which causes the valve stick of the gas system to fail. The heavy fuel oil such as heavy oil or residual oil produced by catalytic cracking contains a large amount of non-hydrocarbon compounds containing sulfur, nitrogen or oxygen, and unsaturated hydrocarbons which are easily oxidized, and the non-hydrocarbon compound contains fluorene and a non-basic nitrogen compound such as tetrahydrocarbazole, and a basic nitrogen compound such as pyridine, wherein the oxime and tetrahydrocarbazole are unstable and are easily oxidized to form a peroxide and cause oxidation of the hydrocarbon, and The coexistence of two types of nitrogen compounds accelerates the formation of peroxides and oxidation of hydrocarbons, causing deposition of impurities, or even causing blockage of the fuel system.

Therefore, the key to the pursuit and breakthrough of alternative energy sources is that the three major issues of improving fuel combustion efficiency, reducing pollutants emitted by fuel combustion, and reducing carbon residue remaining in the combustion chamber have yet to be overcome.

Application of water phase in fuel system

According to the results of the British Petroleum Research Center in 1975, 5 to 15% of fuel oil is burned in the boiler, which will reduce NOx by 15 to 40%, SO ₂ by 4 to 17%, and SO ₃ by 10 to 30. %, CO decreased by 66 to 75% and flue gas decreased by 85%, confirming that the water-based fuel oil will improve exhaust pollution such as NOx, SOx, COx and soot particles due to relatively complete combustion.

There are currently at least three ways to add water to the combustion chamber, namely:

Method 1. Entering water with air through an intake system;

Method 2. Directly inject water into the combustion chamber or add water to the fuel oil;

Method 3. Adding an emulsifier to the fuel oil, and mixing water to form an oil-water emulsion fuel, and then spraying the emulsion fuel into the combustion chamber through the nozzle;

Among them, both methods 1 and 2 will cause abnormal heat shrinkage and cracking of the lining of the combustion chamber, and the two methods cannot optimize the dispersion of the water in the fuel oil before the existing burner structure is maintained. There is no significant benefit to the improvement of combustion efficiency.

Interfacial activity

In the oil-water emulsification technology disclosed in the method 3, the aqueous phase component and the oil phase component are emulsified by a surfactant or an emulsifier to form a water-in-oil or oil-in-water emulsion, wherein the emulsion A plurality of micron-sized oil-water emulsion droplets are included.

The surfactant can be divided into two types: non-ionic and ionic. The ionic type can be divided into three types: cationic, anionic and zwitterionic. Generally, the ionic surfactant does not have sufficient lipophilicity to produce oil phase. Large solubilization, it is difficult to be used alone in the application of oil-water emulsion fuel, or the emulsification effect is poor, resulting in instability of the oil-water emulsion fuel; the mixture of two or more surfactants coexists due to the cohesive force between the oleophilic groups, and The hydrogen bond between the hydrophilic groups, the dipole-dipole force and the dipole-ion interaction can form a stable structure and enhance the emulsification effect, that is, the emulsification effect of the mixture of two or more surfactants is better than that of the single surfactant. Therefore, it is widely used in practice.

The surfactant molecules are composed of a hydrophilic polar group and a lipophilic non-polar group, and the equilibrium value of the lipophilic group and the hydrophilic group in the surfactant molecule, that is, the HLB value (Hydrophilic-Lipophilic Balance, Hydrophilic-lipophilic balance), as an important indicator of the emulsifying properties of the surfactant, 俾 to determine that the surfactant molecule is hydrophilic or lipophilic, the non-ionic HLB value is between 0 and 20, the larger the HLB value is The stronger the hydrophilicity of the surfactant molecules, the more suitable for the preparation of the oil-in-water emulsion; Chung, SH and Kim, JS and others point out that the water-in-oil and oil-in-water emulsions are the most stable. The HLB values are 5.5 and 13.7 respectively; Lin Chengyuan et al.'s research paper points out that under the same water content, compared with the water-in-oil two-phase emulsion, the oil-in-water-in-water three-phase emulsion has a higher High viscosity and exhaust temperature, as well as low CO and NOx exhaust emissions, which indicate that the three-phase emulsified oil suitable for the preparation of oil-in-water oil has an HLB value of 6-8, and an HLB value greater than 10 is difficult to produce stability. Oil-in-water oil-in-water three-phase emulsion. Table 1 below shows the dispersion state of the surfactant in the aqueous phase by the HLB value of the surfactant:

From the dispersion state of the above table, the emulsion exhibiting a clear milky white color is in a preferably stable state, and the stability of the emulsion is evaluated by the dispersion state.

Efficacy of oil-water emulsion fuel in fuel system

In the oil-water emulsion fuel, the water phase component can dilute the concentration of impurities such as nitrogen and sulfur in the fuel oil to reduce the amount of NOx and SOx generated, and dilute the NOx and SOx and other exhaust gases to further oxidize. The corrosive properties of strong acids such as HNO ₃ and H ₂ SO ₄ inhibit the erosion of the walls of the combustion chamber. In addition, due to the presence of water vapor formed by the vaporization of the aqueous phase component, the water gas effect can be decomposed and the reaction of the effect is as follows:

C (carbon or soot) + H ₂ O (water vapor) CO+H ₂

The water vapor reacts with carbon deposits or soot particles in the combustion chamber to form combustible gas CO and H ₂ to participate in combustion, and even heavy oil can be cracked at a high temperature to generate a certain amount of CO and H ₂ . It will improve combustion efficiency and reduce carbon deposits and soot particles in the combustion chamber.

The emulsified water-in-oil or oil-in-water-in-oil type oil-water emulsion fuel not only improves the fluidity of the fuel oil but is more easily sprayed and dispersed in the combustion chamber through the nozzle, and some oil-water emulsion droplet particles are more affected by the outer layer of oil. The phase component is burned so that the water phase component of the inner layer of the particle coated by the droplet is rapidly vaporized by heat, causing the volume to rapidly expand and form a micro-explosion phenomenon, and the water phase component will be coated on the outer layer after being micro-exploded. The oil phase components are dispersed to form smaller oil droplets, which promotes the atomization before combustion in the combustion chamber. The theoretical system was first proposed by Soviet scientist V. Hivahov in 1963 and has been verified by experiments. . The oil droplets generated by the micro-explosion will be further dispersed in the combustion chamber, especially for the oil-water emulsion fuel of heavy oil such as diesel oil and heavy oil, which will be more effective and will increase the air entrained in the combustion chamber. The surface area is contacted, and the turbulence intensity and expansion angle of the oil mist increase, so that the flame cross section becomes wider and thicker, which not only reduces the excess air amount by 2 to 6%, but also reduces the amount of heat lost by the exhaust gas emission, and further increases The combustion chamber temperature and the almost complete combustion effect are achieved, so that fuel oil can be saved.

According to the research paper of Taiwan's successful university <Combustion application of fuel additive and droplet-liquid column collision analysis report>, water is added to heavy oil or waste oil and emulsified. When the micro-explosion effect is good, the combustion efficiency will be improved. It compensates for the decrease in total calorific value caused by the replacement of fuel oil by a small amount of water.

Existing oil-water emulsion fuel technology

Compared with the water-in-oil type oil-water emulsion fuel, the oil-in-water type oil-water emulsion fuel is more favorable for transportation, but solves the problem of inconvenient transportation caused by the viscosity of fuel oil, but it is unstable. Such as Orimulsion oil, it must be stored in the environment of 20 ~ 30 ° C, and the operating environment temperature must be controlled in the range of 5 ~ 75 ° C, otherwise there is de-emulsification due to the separation of oil and water, so it is not applicable It is an industrial fuel oil; in addition, the oil-in-water type of emulsion fuel must be used in special combustion equipment, and it is difficult to be widely used in general industrial boilers or diesel engines, and the oil-in-water type has a micro-explosion effect. Not as good as the water-in-oil type. The oil-in-water emulsion fuel technology can be found in the following patents: Republic of China TW410231, China mainland CN1523085, CN1515652, CN1191560, US 5360458 and PCT patent WO95/27021; among them TW410231 uses HLB value of 13 An emulsifier of ～19, and CN1191560 also uses an emulsifier having an HLB value of 13 to 19, and is subjected to high shear stress to prepare an oil-in-water emulsion fuel having an ultra-heavy oil concentration of 76.5 to 82%. However, the oil-in-water emulsion type of oil-in-water type has poor performance in terms of emulsion stability, wide application, fuel saving effect and reduction of smoke pollution effect, and is less suitable as a fuel supply source.

The water-in-oil type emulsion fuel technology is composed of emulsified fuel oil, emulsified by light hydrocarbon fuel oil, and emulsified by heavy oil such as diesel or heavy oil; light hydrocarbon fuel oil contains low molecular weight aliphatic hydrocarbons The formula is C _n H _2n+2 ) and the cycloalkane (formula C _n H _2n ), and a trace amount of aromatic hydrocarbons, and most of the single surfactants are more difficult to dissolve in a mixture of aliphatic hydrocarbons and naphthenes; diesel or Heavy oils contain high viscosity aromatic hydrocarbons and long-chain polymeric hydrocarbons that are emulsified by most surfactants.

Emulsification techniques for light hydrocarbon fuel oils can be found in the following patents, in which CN1769400 uses fluoroalkyl ether alcohol to emulsify light hydrocarbon pentane, TW189847 uses 25-85% alkanolamine, and 5 to 25% ethoxylation. The alkylphenol and 0-40% copolymer were composed. The inventors prepared a comparative emulsion according to the contents of TW189847, and found that the stability was not good, as shown in Example 7.

Emulsifying techniques for diesel or heavy oil are widely used by incorporating a certain amount of aqueous phase components into fuel oils such as heavy oil or diesel oil, and thoroughly mixing them mechanically and/or chemically to prepare an emulsion fuel. See the following patents: US4743357, US3649527, JP57-49696, WO82/02241 and other patents, the measures taken by these technologies are mostly water under appropriate inorganic catalyst and necessary acid-base environment, temperature and pressure. The phase components participate in the catalytic cracking reaction to produce methane, CO and light fuel oil. After combustion, not only the inorganic catalyst residue but also the energy consumption of the treatment process can reduce the energy saving effect. In addition, TW589369 uses a mixture of 30-80% polyoxyethylene fatty alcohol ether, 5-50% Span 20-80 series and 5-50% Tween 20-80 series to prepare a non-ionic interface with an HLB value of 2.5-8. Active agent; TW574365 describes an additive containing 20 to 70% by weight of an emulsifier having an HLB value of 2.5 to 8, which is composed of a fatty acid polyoxyethylene having a carbon number of 4 to 18 or a higher alcohol polyoxyethylene compound, Span 20~ 80 and TWeen 20-80 series are prepared; the additives of the two patents TW589369 and TW574365 contain inorganic oxidants such as potassium permanganate and sodium dichromate, so that the emulsion fuels have a large amount of slag after combustion. Remains in the combustion chamber.

Among the emulsion fuels disclosed in US Pat. No. 5,024,676, JP 1-185,394, and JP 1-313595, the concentration of heavy oils and the like in the emulsion fuel is only 77% by weight; in China, <Energy Saving Technology> 1990(3) 13-19, etc. The literature, the water ratio is 10-20%, the fuel saving rate is about 10%, and the fuel saving effect is not good; CN1589312 diesel fuel emulsion contains nonionic surfactant with HLB value of 4-8 and up to 25% by weight. According to the research paper of Taiwan's successful university <Combustion application of fuel additive and droplet-liquid column collision analysis report>, it is only recommended to add 10% water; according to TW589369, general emulsion fuel is not easy to ignite, especially when added When the content of the aqueous phase component is more than 30% by weight, the ignition cannot be achieved; in short, the current water content of the existing emulsion fuel technology is only 10 to 30%, which not only has poor fuel saving effect but also limits emulsification. Industrial utilization of fuel.

The use of a high concentration of 4 to 6% by weight of a polyol partial ester of diesel and water emulsion fuel technology can be found in the following patents: WO 85/04183, WO 00/63322, WO 01/02516, US3876391, GB2066288, GB2352246, EP0012292 In EP0242832, EP0372353, EP0888421, EP0893488, EP1101815, DE3229918, CN1079499 and JP-B2-2793190, however, high-concentration emulsifiers will precipitate in the emulsion, and in practice, if the emulsifier is not evenly dispersed In the case of emulsion, glue-like mucous material remains in the inner wall of the combustion chamber and the wall of the pipe, which hinders or blocks the flow of the emulsion fuel in the fuel system piping, resulting in incomplete combustion and increased maintenance costs of the combustion equipment.

Other emulsion fuel technologies can be found in the following patents: TW200533739, TWI272303, TW256853, US5024676, US6030424, CN1051753, and CN1188138. The related literatures indicate that the emulsions are not stable and are easily delaminated, that is, the emulsion fuel is The oil and water are separated before combustion, so the combustion efficiency is not good.

In addition, EP 630 398 describes an emulsion fuel comprising a hydrocarbon fuel, 3 to 35% by weight of water, and at least 0.1% by weight of an emulsifier, wherein the emulsifier comprises sorbitol fatty acid ester, polyalkylene glycol and Ethoxylated alkyl phenol; WO 97/34969 describes an emulsifier having an HLB value of 6-8, which comprises sorbitol fatty acid ester, polyethylene glycol monooleate and ethoxylated nonyl phenol; WO92 /19701 describes an emulsifier having an HLB value of less than 8, comprising an alkanolamine and an ethoxylated alkylphenol; and a diesel stability additive disclosed in CN1462795, comprising a nonionic surfactant having an HLB value of 4 to 10; CN1083516 describes an emulsifier comprising 20-40% polyethyl ether, and improving the fuel economy of the oil-water emulsion fuel to 20-30%; CN1236003 describes a 15-20% alkyl phenoxy ether and 10~ 15% alkyl benzene polyethoxy ether; emulsifier used in TW470771 comprises a mixture of polyoxyalkylphenols, ethanolamines, butanol and glycerides; TW200740983 contains 0.5-3% emulsifier and 10~45% An additive for biochemical aqueous solution to prepare emulsified diesel oil and emulsified heavy oil; The composition of the emulsion prepared by the fuel technology is obviously different from the present invention, and thus the effect is not as good as the present invention.

All in all, there are still many shortcomings in the existing emulsion fuel technology that still need to be broken.

(1) The emulsion stability of the emulsion is not good and the transport reserve is not easy: due to the poor composition of the emulsifier and related additives, improper process temperature, or improper shearing of the emulsifying device, the emulsion droplets are not promoted. In the case of micronization, the emulsion is incompletely emulsified and is prone to agglomeration and delamination. Therefore, in the room temperature storage environment, most of the emulsion fuels can maintain oil and water in a state of separation for at most only for several days. Generally, emulsification The fuel must be used immediately after preparation, so it is not conducive to long-distance transport or large-scale production reserves.

(2) Poor heat value improvement effect and residual residue: due to poor composition of emulsifier and water phase components, there is colloidal foreign matter in the fuel system pipeline or a large amount of carbon deposit remains in the combustion chamber after combustion. The slag not only degrades the combustion efficiency, but also the maintenance of the equipment of the burning appliance is quite inconvenient.

In view of the above shortcomings, the inventors of the present invention found that the type and amount of emulsifiers and related auxiliaries affect their interaction with fuel oil and water, and thus determine the quality of the emulsified fuel. Therefore, the water-in-oil type is retained. Under the premise of the advantages of combustion, the emulsion of the appropriate kind and dosage can effectively solve the problems described in the prior art, and then propose a novel, stable and high calorific value composite fuel emulsion and Its preparation method.

The object of the present invention is to provide a composite fuel emulsion for blending with water to prepare a water-in-oil or oil-in-water-in-oil emulsified composite fuel emulsion; the emulsion and an equal volume of gas, natural gas and heavy oil Compared with fuel oil such as diesel oil, the calorific value is higher and higher than 15-30%; in addition, the emulsion is easy to ignite and burn, and the concentration and quantity of exhaust gas discharged after combustion are lower than that of equal volume fuel oil. It is indeed suitable as a fuel source for various burners.

The object of the present invention is to provide a composite fuel emulsion characterized by comprising a water-in-oil or oil-in-water-in-oil emulsion prepared by blending a composite fuel emulsion with water; the emulsion and an equal volume of gas, natural gas, Compared with fuel oil such as heavy oil or diesel oil, the calorific value is higher and higher than 15-30%; in addition, the emulsion is easy to ignite and burn, and the concentration and quantity of exhaust gas discharged after combustion are equal to the volume of fuel oil. Low, indeed suitable as a fuel source for various burners.

The object of the present invention is to provide a composite fuel emulsion which is convenient for storage and long-distance transport, and after being transported to a destination, the emulsion is blended with water to prepare a water-in-oil or oil-in-water-in-oil type. A composite fuel emulsion having a stability of storage for a period of more than 4 months without separation of oil and water.

The object of the present invention is to provide a liquid composite fuel emulsion characterized by comprising a water-in-oil or oil-in-water-in-oil emulsion prepared by blending a composite fuel emulsion with water, the emulsion having a length of more than 4 months. The stability of time storage without oil and water separation.

The object of the present invention is to provide a composite fuel emulsion characterized by comprising a water-in-oil or oil-in-water-in-oil emulsion prepared by blending a composite fuel emulsion with water, and vaporizing into a gaseous fuel through a high temperature heating device. Compared with an equal volume of natural gas and gas, the gaseous fuel has a higher calorific value and is higher than 15 to 30%, and is indeed suitable as a fuel source for various burners.

The object of the present invention is to provide a composite fuel emulsion for blending with water to prepare a water-in-oil or oil-in-water-in-oil composite fuel emulsion, wherein the emulsion is characterized by:

(1) Emulsifier: is at least one nonionic surfactant selected from the group consisting of Tween 20-80 series (Polyethoxylated sorbitan esters, polyoxyethylene sorbitan fatty acid ester), Span 20-85 series (sorbitan esters) , sorbitol fatty acid ester), Triton 100-405 series (alkylphenol ethoxylates, alkylphenol ethoxylates) and SOFTANOL 50-120 series (Polyoxyetbylene alkyl ether, polyoxyethylene fatty alcohol ether) The oil phase and the aqueous phase solution are emulsified to form a water-in-oil or oil-in-water-in-water emulsion, wherein the emulsifier has an HLB value ranging from 4 to 8, and a preferred HLB value is 5 to 6.

(2) Combustion agent: mainly composed of one or more peroxides for improving the ignition and combustion properties of the emulsion, and is selected from at least one of the following compounds: hydrogen peroxide, peroxyformic acid, peracetic acid, and Cyclopentadienyl iron, toluene, xylene, t-butyl hydroperoxide, di-tert-butyl hydroperoxide, isopropyl hydroperoxide, acetone hydrogen peroxide, cyclohexanone peroxide, dibenzoguanidine peroxide , phenoxyhydrazine peroxide, ethyl butyl oxyhydroxide, alkyl nitrate, tributyl methoxide acetate, dibutyl propyl peroxide, and homologues and derivative compounds thereof, etc., preferably It is composed of hydrogen peroxide and xylene, and can dissolve impurities such as asphaltene or colloid in heavy oil or residue, which is more conducive to combustion.

(3) Stabilizer: is at least one co-emulsifier for promoting the formation of an interfacial film between the oil-water interface of the emulsion, which is characterized by comprising a hydroxyl group (-OH), a carbonyl group (-CO-), an amine group ( At least one functional group capable of forming a hydrogen bond, such as -NH ₂ ), a carboxyl group (-COOH), and an ester group (-COO-), is used to enhance the strength of the oil-water interface film, and to improve the emulsification effect of the emulsifier; Is selected from at least one of the following compounds: alcohols, polyols, phenols, epoxides, polyoxides, amines, organic acids, sugars, and homologues and derivative compounds thereof, etc. In methanol, ethanol, ethylene glycol, propylene glycol, glycerol, isovaerythritol, polyvinyl alcohol, cresol, xylenol, butanol, second octylphenol, polyethylene oxide, polyvinyl formal, Polyacrylic acid, ethylene glycol amine, polyacrylamide, carboxymethyl cellulose, animal glue, alginate, pectin, xanthan gum, and homologues and derivative compounds thereof, preferably xanthan gum composition.

(4) Antioxidant: used to prevent the emulsion, and the emulsion prepared by mixing the emulsion with water for a long time to be degraded, and also to improve the polymerization of unsaturated hydrocarbons generated by heavy oil or diesel after combustion, resulting in coking ; selected from at least one of the following compounds: 2,5-di-tert-butyl hydroquinone, tert-butyl hydroquinone, 2,6 di-tert-butyl-p-cresol, 2,6 di-tert-butyl dimethyl Amino p-cresol, tert-butylhydroxyanisole, propyl gallate, isooctyl 3,5-di-tert-butyl-4-hydroxyphenylpropionate, N,N-dimethyl-12 Alkylamine, N,N-dimethyloctadecylamine, tri-n-octylamine, N,N-diethylhydroxylamine, N,N-dimethylcyclohexylamine, organophosphate, dialkyl The zinc thiophosphate salt, and the homologues and derivative compounds thereof are preferably composed of t-butyl hydroquinone.

(5) Antifoaming agent: used to destroy or inhibit the foaming of emulsion or emulsion and enhance the emulsification effect; it generally has better chemical stability and thermal stability, and lower surface tension to make the foam difficult to form, The preferred spreading factor is characterized by ease of spreading on the surface of the solution, rapid defoaming, and low volatility; and is selected from at least one of the following compounds: dimethyloxane, dimethyloxane mixture added with cerium oxide, Polyoxyalkylene, alkyl polyoxyalkylene, polyether modified polyoxyalkylene copolymer, alkyl phosphate ester, ethylene oxide and propylene oxide copolymer, and homologues and derivative compounds thereof Preferably, it is composed of polyoxyalkylene.

(6) Antifreeze: used to prevent solidification of emulsion or emulsion, selected from at least one of the following compounds: methanol, ethylene glycol, propylene glycol, glycerol, ethylene glycol, polyglutamic acid, urea, dimethyl Aachen, as well as homologues and derivative compounds thereof, are preferably composed of ethylene glycol.

(7) Fuel oil: is a carbonaceous fuel selected from at least one carbon number of 5 to 22, and comprises: gasoline, kerosene, diesel oil, wax oil, heavy oil or residual oil, oil slurry, petroleum solvent, animal oil, vegetable oil , biodegradable oil, mineral oil, waste oil, and the like, and a product obtained by mixing flammable particles (for example, carbon black) into the carbonaceous fuel, can be used as an oil phase component of the composite fuel emulsion of the present invention; The composition of these oils is as follows:

In addition, heavy oil or residual oil is the residue remaining after crude oil is distilled under reduced pressure or atmospheric pressure, and contains saturated hydrocarbons, aromatic hydrocarbons, asphaltenes, colloids and sulfur nitrogen. The slurry contains 30% to 50% of saturated hydrocarbons and colloids. And 50% or more of aromatic hydrocarbons, etc., petroleum solvents include petroleum ether, pentane, n-hexane, heptane, degreased oil, general-purpose solvent, deodorizing solvent, etc., and waste oil includes engine oil such as discarded steam locomotive engine oil, Industrial oils such as discarded lubricating oils and cutting oils, and used cooking oils such as discarded edible oils.

In addition, the addition of potassium hydroxide, sodium hydroxide, etc., in addition to adjusting the pH of the emulsion and combining with the acidic impurities in the fuel oil to form a fine ash to reduce environmental pollution, can further make the oil droplets of the emulsion The surface of the particles is charged to promote stenic stabihization, thereby reducing the occurrence of flocculation and coalescence, and the emulsion droplets are thus less prone to demulsification.

In summary, the composite fuel emulsion of the present invention comprises an emulsifier, a combustion improver, a stabilizer, an antioxidant, an antifoaming agent, an antifreezing agent and a fuel oil, each of which comprises 1 to 5%, 1 to 5%, and 1 of the emulsion, respectively. ~3%, 1-2%, 1-3%, 1-3%, and 79-94% by volume; wherein the composition of the emulsion is organic, which can be completely burned in the combustion chamber to provide heat, and is free of impurities. Residue residue, and solve technical obstacles that have been insurmountable for a long time.

The object of the present invention is to provide a composite fuel emulsion characterized by comprising a water-in-oil or oil-in-water-in-oil emulsion prepared by blending the composite fuel emulsion with water, wherein the emulsion is characterized by:

(1) The composite fuel emulsion comprises: an emulsifier, a combustion improver, a stabilizer, an antioxidant, an antifoaming agent, an antifreeze and a fuel oil, each of which comprises 1 to 5% and 1 to 5% of the emulsion, respectively. 1 to 3%, 1 to 2%, 1 to 3%, 1 to 3%, and 79 to 94% by volume.

(2) an aqueous phase component selected from the group consisting of at least one type of water comprising: low mineral water having trace elements, deionized water, pure water, and magnetized water, wherein the magnetized water is subjected to magnetization by a magnetic field; It is best to deionize water to avoid excessive mineral deposits in the water.

The object of the present invention is to provide a method for preparing a composite fuel emulsion, which comprises mixing a stabilizer contained in the emulsion with a water phase of 1 to 5% by volume to carry out pre-emulsification, and then mixing with an additive composition. The emulsion,

Wherein the composite fuel emulsion comprises:

Emulsifier 1 to 5% by volume

Stabilizer 1 to 3% by volume

Combustion agent 1 to 5% by volume

Antioxidant 1~2% by volume

Antifreeze 1 to 3% by volume

Defoamer 1 to 3% by volume

Fuel oil 79 to 94% by volume

It is characterized in that the method comprises the following steps:

(1) mixing the stabilizer of the emulsion with 1 to 5% by volume of the aqueous phase component,

(2) mixing the stabilizer containing the aqueous phase component with the composition to prepare the emulsion, wherein the composition comprises the emulsifier, the combustion improver, the antioxidant, the antifreeze, the antifoaming agent, and the like a group of substances consisting of fuel oil.

The object of the present invention is to provide a method for preparing a composite fuel emulsion, which comprises mixing a stabilizer contained in the emulsion with a water phase of 1 to 5% by volume to carry out pre-emulsification, and then mixing with an additive composition. The emulsion is finally prepared by emulsifying the emulsion with 10 to 45% by volume of the aqueous phase component.

Wherein the composite fuel emulsion system comprises:

A composite fuel emulsion 55 to 90% by volume

One aqueous phase component 10 to 45% by volume

Wherein the composite fuel emulsion comprises:

Emulsifier 1 to 5% by volume

Stabilizer 1 to 3% by volume

Combustion agent 1 to 5% by volume

Antioxidant 1~2% by volume

Antifreeze 1 to 3% by volume

Defoamer 1 to 3% by volume

Fuel oil 79 to 94% by volume

Wherein the aqueous phase component is selected from the group consisting of at least one type of water comprising: a group of low mineral water, deionized water, pure water and magnetized water having trace elements.

It is characterized in that the method comprises the following steps:

(1) using a preparation method of a composite fuel emulsion to prepare a composite fuel emulsion,

(2) mixing the emulsion with 10 to 45% by volume of the aqueous phase component,

(3) An emulsion treatment by an emulsifying device to prepare the emulsion.

The preparation method of the composite fuel emulsion comprises the following steps:

(1) mixing the stabilizer of the emulsion with 1 to 5% by volume of the aqueous phase component,

(2) mixing the stabilizer containing the aqueous phase component with the composition to prepare the emulsion, wherein the composition comprises the emulsifier, the combustion improver, the antioxidant, the antifreeze, the antifoaming agent, and the like a group of substances consisting of fuel oil.

In summary, the composite fuel emulsion of the present invention comprises the composite fuel emulsion and the aqueous phase component, and does not require additional heating at room temperature, and provides high-speed shear treatment through an emulsification device, wherein the shear treatment is sheared. The speed is from 2000 to 10000 RPM, and the preferred shear rate is from 6000 to 8000 RPM to prepare a water-in-oil or oil-in-water-in-water composite fuel emulsion; wherein the emulsion has an oil droplet size of less than 2 um and accounts for 70%. Above, it is optimal that the droplet size is less than 2 um, which accounts for more than 95%; wherein the aqueous phase component can be as high as about 45% by volume, which is obviously superior to the prior art 20-30% by volume of the water phase component, and the fuel economy The effect is significant, and the technical obstacles that have been insurmountable for a long time are solved.

Therefore, the present invention is a novel, progressive and practical invention. Compared with the existing emulsion fuel technology, the advantages of the present invention are as follows:

1. The proportion of the aqueous phase component of the composite fuel emulsion is increased to 40 to 45%, and there is no ignition problem;

2. The composite fuel emulsion has a high calorific value, which is obviously higher than the equivalent volume of conventional fuel oil by 15-30%. After burning, there is no residual residue, and it can be vaporized into a gaseous fuel by a high temperature heating device. Source of fuel for various burners;

3. The preparation process of the composite fuel emulsion and the composite fuel emulsion does not need to be treated by a heating device, so the preparation method is relatively simple, and the technical obstacles which have been unsolved for a long time are solved, which is obviously superior to the existing technology in the high temperature environment. Process

4. When the composite fuel emulsion is used as a fuel supply, it does not need to be treated by a heating device, and solves the technical obstacle that has been insurmountable for a long time, and is obviously superior to the prior art that needs to be heated and consumes additional power;

5. It has stability of more than 4 months, and the emulsification process does not need to be heated separately, which is more conducive to long-term storage, long-distance transportation and large-scale preparation.

Therefore, the present invention has significant power enhancement and complies with the invention patent requirements, and submits an application according to law.

The present invention has been described in detail below with reference to the preferred embodiments of the present invention. The examples of the invention are intended to be illustrative only and not limiting the scope of the invention.

Example 1

The preparation method of the emulsion contained in the composite fuel emulsion of the present invention is described by the present embodiment, and the emulsion is added with a certain amount of water in the embodiment 2 to prepare the composite fuel emulsion of the present invention, and finally the emulsion is heated by a high temperature device. Vaporized into a gaseous fuel to replace gas or natural gas.

The preparation method of this embodiment is divided into three major steps:

I. Proposed emulsion preparation process steps:

(1) planning the type and dosage of the raw materials required for the emulsion to be prepared to prepare the emulsion having a total amount of 1000 c.c.

(2) ordering the injection of each raw material into an emulsifying device,

(3) stirring and mixing the respective emulsion components to prepare the emulsion,

2. Emulsion preparation steps:

(1) Emulsifier: Firstly, the HLB value of the composite fuel emulsion to be prepared is determined to be 7.6, and the nonionic surfactants used are Triton-100, Tween 20 and Span 80, and the ratio thereof is 1:2:7. Percentage, the agent is 3% by volume of the emulsion.

(2) Combustion promoter: a peroxide such as a cyclic ketone peroxide and xylene, and the volume percentage of the emulsion is 3.5% and 3 to 5%, respectively.

(3) Stabilizer: The xanthan gum was mixed into 2% water to complete the formulation, and the volume percentage of the emulsion was about 3%.

(4) Fuel oil: a general-purpose solvent and mixed hexane which are commercially available (Taiwan Zhongyou), and the volume percentage of the emulsion is 58 to 65% and 10 to 25%, respectively.

3. Emulsion production steps:

First, put xylene, common solvent and mixed hexane into an emulsifying device, stir for about 3 to 5 minutes, then emulsifier, stabilizer, combustion improver, 1.5% ethylene glycol, 0.5% sodium hydroxide, 0.5 % antioxidant and 0.2% antifoaming agent are injected into the emulsifying device, stirring is continued for about 10 to 15 minutes, without additional heating during the stirring process, and the stirring speed is 90-150 revolutions per minute (RPM), which can be prepared. The emulsion contained in the composite fuel emulsion of the present invention.

Example 2

The emulsion prepared in Example 1 is spiked with a certain amount of water to prepare a composite fuel emulsion of the present invention, and then the emulsion is vaporized into a gaseous fuel by a high temperature heating device, and finally the gaseous fuel is combined with a commercially available barreled gas. Combustion was performed separately to determine the calorific value and compare the calorific value of the two.

The preparation method of the composite fuel emulsion of the present invention is that the 1000c.c. emulsion prepared in Example 1 is injected into the emulsifying device to perform pre-shearing treatment, and the shearing speed is set to 300-500 RPM, and then the The prepared 600c.c. water is added to the emulsifying device to emulsify the water and the emulsion. After the water volume is added, the speed of the emulsifying device is accelerated from 500 RPM to 3000 RPMM, and then accelerated to 6000 RPM. After about 5 to 10 minutes of stirring time, the preparation of the composite fuel emulsion of the present invention can be completed, wherein more than 90% of the droplet molecules contained in the emulsion have a particle size of less than 2 um.

The fuel emulsion 4800c.c. which has been prepared is vaporized into a gaseous fuel by a high-temperature heating device, and is measured and compared with a commercially available 5 kg drum of gas. The steps are as follows:

(1) using a container to charge 3 kg of water, and using the vaporized composite fuel emulsion of the present invention and commercially available general barreled gas as fuel, and then using the rapid furnace as a combustion tool, respectively, the container and the amount of water contained therein. Heating to about 90 ° C, and finally comparing the time taken to burn the same volume of the two fuels, and measuring its calorific value.

(2) The fuel emulsion 4800c.c. is vaporized into a gaseous fuel through a high-temperature heating device, and is burned, which takes a total of 380 minutes to burn out.

(3) Burning commercially available 5 kg barrels of gas (only 4 kg of gas is available due to atmospheric pressure; according to the Energy Bureau, 1Kg of gas has a volume of 1.786 liters, or 4,700 liters of volume is 7.144 liters) It takes 360 minutes to burn up the volume of gas in the barrel.

(4) The thermal value of the emulsion measured by PERR 1261 (Oxygen Bomb Calorimeter) is 8380 仟 / liter, while the measured liquefied petroleum gas (LPG) contained in commercially available barreled gas is 6000. ~6635 Leica / liter.

(5) From the experimental results and the calorific value measurement results, the composite fuel emulsion of the present invention has a higher calorific value than that of the commercially available barreled gas, and is obviously suitable for use as a fuel.

Example 3

The emulsion prepared in the present embodiment and the composite fuel emulsion prepared by blending the emulsion with water are used as a fuel source for a combustion device such as an industrial boiler, and the preparation method and steps thereof are the same as those in the first embodiment and the second embodiment. , only changing the composition of the emulsion and the emulsion is:

1. Preparation of an emulsion contained in the composite fuel emulsion of the present invention:

(1) Emulsifier: The volume percentage of the emulsion is 1.5 to 5%.

(2) Combustion promoter: a peroxide such as a cyclic ketone peroxide, dicyclopentadienyl iron or xylene, and the volume percentage of the emulsion thereof is 0.5 to 1%, 0.1 to 1%, and 1 to 3%, respectively.

(3) Stabilizer: The xanthan gum is mixed with 1 to 2% water to complete the preparation, and the volume percentage of the emulsion is about 1.5 to 3.5%. And add 0.5 to 1% sodium hydroxide.

(4) Fuel oil: heavy oil, a commercially available general-purpose solvent, and mixed hexane, which account for 35 to 50%, 25 to 35%, and 15 to 20% by volume of each emulsion.

(5) Antioxidant: The volume percentage of the emulsion is 0.3 to 1.5%.

The emulsion contained in the composite fuel emulsion of the present invention can be prepared by stirring.

2. The composition of the composite fuel emulsion of the present invention is:

The emulsion 1000c.c. was added with a water content of 600 c.c. to prepare the emulsion of 1600 c.c.

3. The fuel emulsion and the same volume of heavy oil are used as fuel samples, and a one-ton boiler burner is used to test the fuel combustion characteristics. The boiler is used in industrial sterilization equipment, and the original use thereof Fuel oil is heavy oil. The test results of the combustion characteristics found that the heavy oil still had 5-10% residual amount and could not be burned out, and the fuel emulsion could be completely burned without residue. The combustion heat value of the fuel emulsion measured by PARR 1261 is 10200 仟 / liter, however, according to the Energy Bureau data, the heat value of heavy oil combustion is only 9200 仟 / liter. Example 4

The emulsion prepared in the present embodiment and the composite fuel emulsion prepared by blending the emulsion with water are used as a fuel source for a combustion device such as an industrial boiler or a die-casting machine, and the preparation method and steps thereof are the same as the embodiment 1 and the implementation. In the same manner as in Example 2, only the emulsion and the composition of the emulsion were changed:

1. Preparation of an emulsion contained in the composite fuel emulsion of the present invention:

(1) Emulsifier: The volume percentage of the emulsion is 1.5 to 5%.

(2) Combustion promoter: a peroxide such as a cyclic ketone peroxide, dicyclopentadienyl iron or xylene, and the volume percentage of the emulsion thereof is 0.5 to 1%, 0.1 to 1%, and 1 to 3%, respectively.

(3) Stabilizer: The xanthan gum is mixed with 1 to 2% water to complete the preparation, and the volume percentage of the emulsion is about 1.5 to 3.5%. And add 0.5 to 1% sodium hydroxide.

(4) Fuel oil: waste locomotive oil, diesel oil, commercially available general-purpose solvent and mixed hexane, the volume percentage of the emulsion is 35 to 55%, 5 to 10%, 10 to 25% and 10 to 20%. .

(5) Antioxidant: The volume percentage of the emulsion is 0.3 to 1.5%.

The emulsion contained in the composite fuel emulsion of the present invention can be prepared by stirring.

2. The composition of the composite fuel emulsion of the present invention is:

The emulsion 1000c.c. was added with a water content of 600 c.c. to prepare the emulsion of 1600 c.c.

3. The fuel emulsion and the same volume of heavy oil are used as fuel samples, and the fuel burning characteristics of the Pilot Oil Burner are tested by the Japanese brand. The burner is used in the combustion of the die casting factory. Equipment, the fuel oil originally used is heavy oil. The test results of the combustion characteristics found that the heavy oil still had 5-10% residual amount and could not be burned out, and the fuel emulsion could be completely burned without residue. The combustion heat value of the fuel emulsion measured by PARR 1261 is 9900 仟 / liter, however, according to the Energy Bureau data, the heat value of heavy oil combustion is only 9200 仟 / liter. Example 5

The emulsion prepared in the present embodiment and the composite fuel emulsion prepared by blending the emulsion with water are used as a fuel source for a combustion device such as a dryer for industrial iron can label printing, and the original fuel used in the machine The oil is natural gas. The preparation method and the steps are the same as those in the first embodiment and the second embodiment, and only the composition of the emulsion and the emulsion is changed:

1. Preparation of an emulsion contained in the composite fuel emulsion of the present invention:

(1) Emulsifier: The volume percentage of the emulsion is from 1 to 3.5%.

(2) Combustion promoter: a peroxide such as a cyclic ketone peroxide, dicyclopentadienyl iron or xylene, and the volume percentage of the emulsion thereof is 0.5 to 3%, 0.1 to 1%, and 3 to 5%, respectively.

(3) Stabilizer: The xanthan gum is mixed with 1 to 2% water to complete the preparation, and the volume percentage of the emulsion is about 1.5 to 3.5%. And add 0.5 to 2% sodium hydroxide.

(4) Fuel oil: diesel oil, a commercially available general-purpose solvent, and mixed hexane, which account for 5 to 10%, 40 to 55%, and 10 to 40% by volume of the emulsion.

(5) Antifoaming agent: The volume percentage of the emulsion is from 1 to 3%.

The emulsion contained in the composite fuel emulsion of the present invention can be prepared by stirring.

2. The composition of the composite fuel emulsion of the present invention is:

The emulsion 1000c.c. was added with a water content of 600 c.c. to prepare the emulsion of 1600 c.c.

3. The combustion heat value of the vaporized fuel emulsion measured by PARR 1261 is 8800 仟 / liter, however, according to the Energy Bureau data, the calorific value of heavy oil combustion is only 5300 仟 / liter. (According to the calorific value of natural gas is 8,900 仟 / cubic meter, 1 cubic meter of volume contains about 1.672 liters of natural gas). Example 6

The emulsion prepared in the present embodiment and the composite fuel emulsion prepared by blending the emulsion with water are used as a fuel source for a combustion device such as an agricultural grain dryer, and the original fuel oil used in the machine is diesel. In order to facilitate ignition and combustion, the upper diesel burner usually adds 10-15% kerosene. The preparation method and the steps are the same as those in the first embodiment and the second embodiment, and only the composition of the emulsion and the emulsion is changed:

1. Preparation of an emulsion contained in the composite fuel emulsion of the present invention:

(1) Emulsifier: The volume percentage of the emulsion is from 1 to 3%.

(2) Combustion promoter: a peroxide such as a cyclic ketone peroxide, dicyclopentadienyl iron or xylene, and the volume percentage of the emulsion thereof is 1 to 5%, 1 to 2%, and 1 to 5%, respectively.

(3) Stabilizer: The xanthan gum is mixed with 1 to 2% water to complete the preparation, and the volume percentage of the emulsion is about 1.5 to 3.5%. Add 1 to 2% sodium hydroxide.

(4) Fuel oil: Diesel, a commercially available general-purpose solvent and mixed hexane, the volume percentage of the emulsion is 30 to 50%, 30 to 45%, and 10 to 20%, respectively.

(5) Antifoaming agent: The volume percentage of the emulsion is from 1 to 3%.

The emulsion contained in the composite fuel emulsion of the present invention can be prepared by stirring.

2. The composition of the composite fuel emulsion of the present invention is:

The emulsion 1000c.c. was added with a water content of 600 c.c. to prepare the emulsion of 1600 c.c.

3. The combustion heat value of the vaporized fuel emulsion measured by PARR 1261 is 9600 仟 / liter, however, according to the Energy Bureau data, the diesel combustion heat value is 8800 仟 / liter, and the kerosene combustion heat value is 8500 仟 / liter. Example 7: Stability test of fuel emulsion

From the fuel emulsions prepared in the above Examples 1, 3, 4, 5 and 6, each of the three reagents was taken, and each of the reagents was 100 c.c., that is, 300 c.c. was extracted from each of the examples, and According to the preparation method of the Republic of China Patent No. TW189847, a comparative emulsion is separately prepared, and three 100c.c. reagents are also extracted, and the six emulsion samples are separately subjected to a static test, a temperature change test and a dynamic test, and The oil-water separation of each sample was observed. If the sample was separated by oil-water separation, the free water content at the bottom of the sample was measured. Finally, the stability of the emulsion samples was determined by the oil-water separation and the clear condition.

A. Static (4 months standing for a long time) test:

After the preparation of the six kinds of samples, each of them was allowed to stand for 4 months, and the oil-water separation and the clear condition of the emulsion samples were observed month by month to determine the long-term standing of the emulsion samples. Stability, the observation results are shown in Table 2:

X: separation

2. Temperature change test:

The six emulsion samples are placed in an incubator, the temperature of the incubator is adjustable, the temperature control range is -20 ° C ~ 100 ° C, and the temperature of the six samples is controlled according to the following temperature cycle Environment: set the temperature at 70 ° C for 8 hours, the temperature at 30 ° C for 8 hours, and the temperature at 5 ° C for 8 hours. The three stages are tested weekly, and the oil-water separation and clearness of the emulsion samples are observed. The stability standard indicates The symbols are the same as those in Table 2. The observation results are shown in Table 3:

3. Dynamic testing:

The six emulsion samples were placed in a test tube tank of the centrifuge, and then centrifuged for 15 minutes at a centrifugal speed of 3000 RPM (about 1050 g, wherein g is gravitational acceleration), and then the emulsion samples were measured. The amount of free water, the stability of the emulsion samples is determined by the amount of water. According to the amount of water released, the emulsion is more severely demulsified, resulting in more serious oil-water separation. Conversely, less water is released. It means that the stability is higher; that is, the stability is determined according to the amount of free water at the bottom of each tube after centrifugation, and the amount of emulsified or emulsified water layer at the top of the fuel oil layer. Shown as follows:

4. Results of the stability experiment:

From the results of Table 1, Table 2 and Table 3, it can be seen that compared with the comparative example, the composite fuel emulsion of the invention has better stability under the three test conditions of long-term static test, temperature change test and dynamic test. The emulsion samples of Examples 3, 4 and 5 are preferred.

It can be seen from the results of the above examples that the composite fuel emulsion of the present invention and the composite fuel emulsion prepared by blending the emulsion with water are indeed another preferred source of energy supply compared with conventional fuel oil sources. It is sufficient to replace fuels such as gas, natural gas, heavy oil and diesel, and the advantages of the invention are as follows:

1. The composite fuel emulsion of the present invention has a high calorific value. Compared with the traditional fuel oil of the same volume, the heat value of the invention is about 15-30% higher than that of the conventional fuel oil, so it can be a source of energy supply with higher combustion efficiency.

2. The composite fuel emulsion of the present invention can be vaporized into a gaseous fuel by a high temperature heating device to augment the use of the fuel emulsion.

3. The composite fuel emulsion of the present invention can be completely burned without residue residue, which can improve the problems of the burner nozzle and the residue or carbon deposit of the combustion chamber, thereby effectively prolonging the life of the burning appliance.

4. The composite fuel emulsion of the present invention has better emulsion stability, that is, the emulsion is less prone to oil-water separation, and it can be known from Example 7 that it can be stored for up to 4 months at room temperature without occurrence. Demulsification situation.

The essence of the present invention will be more apparent from the description of the above embodiments, however, the above-described embodiments are merely preferred embodiments of the present invention in place of various conventional energy sources, and variations and creations thereof in accordance with the teachings of the present invention It is to be understood that the modifications and variations of the invention may be made without departing from the spirit and scope of the invention.

Claims (13)

A composite fuel emulsion for forming a gaseous fuel, characterized in that the emulsion comprises: a composite fuel emulsion of 55 to 90% by volume, and an aqueous phase component of 10 to 45% by volume; wherein the composite fuel emulsion comprises: an emulsifier 1~5% by volume, stabilizer 1~3% by volume, combustion improver 1~5% by volume, antioxidant 1~2% by volume, antifreeze 1~3% by volume, defoamer 1~3% 5% by volume, fuel oil, 79 to 94% by volume, wherein the emulsifier is characterized by comprising at least one nonionic surfactant composition, wherein the composition has an HLB value of 4 to 8 between. The aqueous phase component according to claim 1 of the patent application, comprising a composition, wherein the composition is selected from the group consisting of low-mineral water with trace elements, deionized water, pure water, and magnetized water. substance. The emulsifier according to item 1 of the patent application range is selected from the group consisting of Tween 20-80 series, Span 20-85 series, Triton 100-405 series and SOFTANOL 50-120 series. The combustion improver according to claim 1 of the present invention, for improving the ignition and combustion properties of the emulsion, characterized in that the combustion improver comprises a composition, wherein the composition is selected from the group consisting of hydrogen peroxide, peroxyformic acid, Peracetic acid, iron dicyclopentadiene, toluene, xylene, t-butyl hydroperoxide, di-tert-butyl hydroperoxide, isopropyl hydroperoxide, acetone hydrogen peroxide, cyclohexanone peroxide, Diphenyl oxide Methyl hydrazine, phenoxy acetonide, ethyl butyl sulfoxide, alkyl nitrate, tributyl methoxide acetate, dibutyl propyl benzoate, and homologues and derivative compounds thereof a group of substances. The stabilizer according to the first aspect of the patent application for improving the emulsification effect of the emulsifier, characterized in that the stabilizer system comprises a composition, wherein the composition is selected from the group consisting of methanol, ethanol, ethylene glycol, and propylene glycol. , glycerol, pentaerythritol, polyvinyl alcohol, cresol, xylenol, butanol, second octylphenol, polyethylene oxide, polyvinyl formal, polyacrylic acid, ethylene glycol amine, polyacrylic acid A group of amines, carboxymethylcellulose, animal glues, alginates, pectins, xanthan gum, and homologues and derivative compounds. The antioxidant according to the first aspect of the patent application for preventing deterioration of the emulsion by storage for a long period of time, characterized in that the antioxidant comprises a composition, wherein the composition is selected from the group consisting of 2,5-di-tert-butyl Hydroquinone, tert-butyl hydroquinone, 2,6 di-tert-butyl-p-cresol, 2,6-di-tert-butyldimethylamino-p-cresol, tert-butylhydroxyanisole, citrate Ester, isooctyl 3,5-di-tert-butyl-4-hydroxyphenylpropionate, N,N-dimethyldodecylamine, N,N-dimethyloctadecylamine, tri-n-octyl a group of amines, N,N-diethylhydroxylamine, N,N-dimethylcyclohexylamine, organophosphates, zinc dialkyldithiophosphates, and homologues and derivative compounds thereof substance. The antifoaming agent according to the first aspect of the patent application, for destroying or suppressing foaming of an emulsion or an emulsion, and enhancing an emulsification effect, characterized in that the antifoaming agent comprises a composition, wherein the composition is selected from the group consisting of two Methyl decane, dimethyloxane mixture added with cerium oxide, polyoxyalkylene, alkyl polyoxyalkylene, polyether modified polyoxyalkylene copolymer, alkyl phosphate ester, epoxy a copolymer of ethane and propylene oxide, and a group of homologues and derivative compounds. The antifreeze according to claim 1 of the patent application for preventing coagulation of the emulsion, characterized in that the antifreeze comprises a composition, wherein the composition is selected from the group consisting of methanol, ethylene glycol, propylene glycol, glycerin, Ethylene glycol, polyglutamic acid, urea, dimethyl hydrazine, and homologues and derivatives thereof a group of substances consisting of a compound. The fuel oil according to claim 1, wherein the fuel oil comprises at least one carbonaceous fuel composition having a carbon number of 5 to 22, wherein the composition is selected from the group consisting of gasoline, kerosene, and diesel. Wax oil, heavy oil or residual oil, oil slurry, petroleum solvent, animal oil, vegetable oil, biodegradable oil, mineral oil and waste oil, and a product obtained by mixing flammable powder particles into the carbonaceous fuel Group of substances. The petroleum solvent of the fuel oil according to claim 9 of the invention, characterized in that the petroleum solvent comprises a composition selected from the group consisting of petroleum ether, pentane, n-hexane, heptane, and degreased oil. A group of substances consisting of a general-purpose solvent and a deodorizing solvent. A method for preparing a composite fuel emulsion, wherein the composite fuel emulsion comprises: a composite fuel emulsion of 55 to 90% by volume, and an aqueous phase component of 10 to 45% by volume; wherein the composite fuel emulsion comprises: an emulsifier 1 to 5 % by volume, stabilizer 1 to 3% by volume, combustion improver 1 to 5% by volume, antioxidant 1 to 2% by volume, antifreeze 1 to 3% by volume, defoamer 1 to 3% by volume, The fuel oil is 79 to 94% by volume; characterized in that the preparation method comprises the following steps: (1) using a preparation method of a composite fuel emulsion to prepare the composite fuel emulsion, and (2) 55 to 90% by volume of the The emulsion is mixed with 10 to 45% by volume of the aqueous phase component. (3) Shearing treatment by an emulsifying device to prepare the emulsion. The method for preparing the composite fuel emulsion according to claim 11 of the invention, characterized in that the method comprises the steps of: (1) mixing the stabilizer with 1 to 5% by volume of the aqueous phase component, and (2) comprising the aqueous phase; The stabilizer is mixed with the composition to prepare the emulsion, wherein the composition comprises the emulsifier, the combustion improver, the antioxidant, the antifreeze, the antifoaming agent and the fuel oil. Group of substances. According to the shearing treatment of the emulsifying device of claim 11, wherein the shearing speed is 2000 to 10000 RPM, and the preferred shearing speed is 6000 to 8000 RPM.