576results about "Fuel additives" patented technology

The invention relates to the field of fire-resistant oil, in particular to phosphate-based fire-resistant oil with synergistically optimized flame resistance and stability and a preparation method of the phosphate-based fire-resistant oil. The fire-resistant oil comprises base oil and an additive, the base oil is a mixture obtained by esterification of mixed alkylphenol and phosphorus oxychloride; the molar percentage of the mixed alkylphenol is as follows: 4-6% of phenol; 11 to 14 percent of p-methylphenol; 22 to 26 percent of 2, 5-position dimethyl phenol; 0.8 to 1.5 percent of 2, 4-position dimethyl phenol; 2.5 to 4 percent of 2, 3-position dimethyl phenol; 0.4 to 0.6 percent of 4-ethyl phenol; 40 to 48 percent of 3, 5-position dimethyl phenol; 8 to 11% of 3-ethyl phenol; 3 to 5 percent of 3, 4-position dimethyl phenol; the additives comprise an antioxidant, a corrosion inhibitor, an anti-foaming agent and an anti-hydrolysis agent; the addition amount of the antioxidant is 0.05-5% of the total mass of the base oil; the addition amount of the corrosion inhibitor is 0.001%-0.08% of the total mass of the base oil; the addition amount of the anti-foaming agent is 0.001%-0.009% of the total mass of the base oil; the addition amount of the anti-hydrolysis agent is 0.001%-0.005% of the total mass of the base oil. The fire-resistant oil provided by the invention can be safely used under the working conditions of high temperature and extreme pressure.

The invention relates to the technical field of fuels and additives thereof, in particular to an alcohol fuel with a catalytic effect and an additive thereof.The alcohol fuel with the catalytic effect comprises C1-C7 alcohol and hydrocarbon, and a rare earth compound catalytic material is used in the fuel; the rare earth compound comprises a hydroxyl group or a phenyl group or a C5-C25 group or a carboxyl group or an amino group or a metal, the alcohol fuel is high in formula calorific value adjustable calorific value, can well adapt to an internal combustion engine or an engine for testing the alcohol fuel, is a novel alternative energy with potential, and can be used for preparing the alcohol fuel. The environmental protection problem of fossil fuel is solved, and the fuel efficiency is accelerated.

The invention discloses a biomass fuel rod and a production method and application thereof, and belongs to the technical field of biomass fuels, the biomass fuel rod comprises the following components by mass: 60-80 parts of a biomass raw material, 10-20 parts of a binder, 1-5 parts of a combustion improver, 3-8 parts of a sulfur and chlorine fixing agent, 1-3 parts of a denitration agent, and 2-5 parts of an ash content regulator. The production method specifically comprises the following steps: (1) pretreatment: crushing a biomass raw material until the particle size is less than or equal to 2mm, and carrying out pretreatment by adopting baking semi-carbonization; (2) mixing: sequentially adding a binder, a combustion improver, a sulfur-fixing and chlorine-fixing agent, a denitration agent and an ash content regulator which are ground until the particle size is less than or equal to 2mm, and stirring and mixing for 5-10 minutes; (3) forming: carrying out extrusion forming by adopting a twin-screw extruder under the pressure of 15-25MPa and the temperature of 80-100 DEG C to obtain a fuel rod with the density of 1.2-1.4 g / cm < 3 >; the production method is simple and easy to implement, the combustion performance of the produced fuel rod is good, and the combustion efficiency and the environmental protection property are improved.

The invention discloses a quality-divided separation and high-valued utilization method of coal gasification slag, a generated product and application, and belongs to the technical field of high-valued recycling of coal gasification slag. According to the method, the coal gasification slag is classified by adopting an alkali fusion-acid leaching two-step method, components in the coal gasification slag are classified into pure carbon components and a metal-containing acid leaching salt solution, a high-valued utilization method is provided for the classified components, and the carbon components are activated into an active carbon electrode material with a high specific surface area and applied to the field of energy storage. The metal-containing acid leaching salt solution is prepared into the metal cross-linked hydrogel, and the metal cross-linked hydrogel is applied to the field of coal flame retardance. The method can effectively solve the technical problem that the overall utilization is restricted by carbon ash caused by multi-metal component mixing and high carbon content of the coal gasification slag in the prior art.

The invention relates to the field of methanol fuels, and particularly discloses a synthetic environment-friendly methanol fuel and a preparation method thereof, the synthetic environment-friendly methanol fuel comprises the following raw materials by weight: 50-70 parts of methanol, 15-30 parts of biomass blend oil, 1-4 parts of a mutual solvent, 0.5-2 parts of a cetane number improver, 0.01-0.05 part of a cleaning dispersant, 0.002-0.01 part of a metal corrosion inhibitor, 0.003-0.015 part of an acid neutralizer, and 0.005-0.02 part of a stabilizer. The biomass blend oil is prepared from waste animal and vegetable oil through transesterification and hydrogenation upgrading processes. According to the invention, the biomass blend oil is prepared from waste animal and vegetable oil through ester exchange and hydrogenation upgrading processes, so that resource utilization of wastes is realized, and more importantly, the inherent defects of too low cetane number and insufficient heat value of methanol are effectively overcome due to the characteristics of high cetane number, high saturation and low oxygen content of the biomass blend oil; the fuel can be stably and efficiently combusted in a compression ignition engine, meanwhile, emission of particulate matter and uncombusted hydrocarbon is remarkably reduced, and environmental friendliness is embodied from the source.

The invention provides an alginate lyase mutant Amut8C as well as a coding gene and application thereof, belongs to the technical field of gene engineering and enzyme engineering, and can solve the problem that existing alginate lyase cannot meet the requirements of severe reaction conditions such as high temperature and acidity in industrial application. The amino acid sequence of the alginate lyase mutant Amut8C disclosed by the invention is as shown in SEQ ID NO. 1. According to the space structure of the alginate lyase Algt, disulfide bonds in molecules are analyzed, the alginate lyase is mutated, and the obtained alginate lyase mutant Amut8C has heat resistance, acid and alkali resistance and digestive enzyme tolerance, and compared with the alginate lyase Algt, the alginate lyase mutant Amut8C has the advantages that the content of the alginate lyase mutant Amut8C is increased, and the content of the alginate lyase mutant Amut8C is increased. The alginate oligosaccharide with the polymerization degree of 1-4 prepared from the alginate lyase mutant Amut8C under the same enzymolysis condition is higher in yield. The method can be applied to the fields of feeds, foods, detergents or biofuels.

The invention provides rare earth based hexaaluminate, a preparation method thereof and a methane combustion catalyst. The general formula of the rare earth based hexaaluminate is AByAl12-yO19, A is a rare earth element and / or an alkaline earth metal element, B is a transition metal element, and y is more than 0 and less than 12. By introducing the rare earth element and / or alkaline earth metal, the stability of a hexaaluminate skeleton is enhanced, and the high temperature resistance of the hexaaluminate skeleton is further improved; and meanwhile, the transition metal is used for partially replacing Al < 3 + >, so that the catalyst has better high-temperature catalytic activity when being applied to catalytic methane combustion, and the methane catalytic combustion reaction temperature can be obviously reduced.

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 preparation method of a low-sulfur diesel oil anti-wear agent, and belongs to the technical field of carbon-containing fuel processing, and the preparation method comprises the following steps: adding sodium oleate, tetrabutylammonium bromide and xylene into a three-necked flask, uniformly stirring and mixing, heating, dropwise adding 3-chloro-1, 2-propylene glycol, continuously heating until reflux, centrifuging, and carrying out rotary evaporation to obtain glyceryl monooleate; the preparation method comprises the following steps: dispersing NCC in xylene, adding lauric acid and p-toluenesulfonic acid, and carrying out heating, reflux reaction, cooling, centrifugation, washing and drying under the protection of an inert atmosphere to obtain modified NCC; the preparation method comprises the following steps: heating and melting glyceryl monooleate, adding silane modified silicon dioxide, stirring, carrying out ultrasonic treatment, cooling to obtain a modified nano-composite, adding the modified NCC and a stabilizer, stirring, and carrying out ultrasonic uniform mixing to obtain the low-sulfur diesel oil anti-wear agent. The diesel oil anti-wear agent provided by the invention can improve the wear resistance of diesel oil under the condition that the addition amount is relatively low, and improve the low-temperature fluidity and demulsifying performance.

A diesel fuel composition including (a) a quaternary ammonium salt additive; and (b) one or more nitrogen-free detergents; wherein the quaternary ammonium salt additive includes the quaternised reaction product of a hydrocarbyl substituted succinic acid derived acylating agent and a compound able to react with said acylating agent and which includes a tertiary amine group; wherein each molecule of the hydrocarbyl substituted succinic acid derived acylating agent includes on average at least 1.2 succinic acid moieties.

The invention relates to the technical field of fuel additives, in particular to an amine hydrate carbon dioxide carbonylation antiknock agent and a preparation method and application thereof.The antiknock agent is obtained by mixing and reacting an amine mixture, a hydrated electron base solution and carbon dioxide, and the mass ratio of the amine mixture to the hydrated electron base solution to the carbon dioxide is (6.0-9.0): (0.8-1.2): (7.0-11.0); the problem of environmental pollution of a traditional antiknock agent and the technical problem of CO2 resource utilization are solved, and collaborative development of greenhouse gas emission reduction and efficient antiknock agent preparation is achieved.

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.

This invention relates to an alcohol-based fuel additive, its preparation method, and its application, belonging to the technical field of diesel fuel additives. The additive, by weight, comprises: a mixture of C3-C10 fatty alcohols, fatty acid methyl esters, methyl tert-butyl ether, isoamyl nitrate, dimethyl carbonate, and diesel fuel. The mass ratio of methyl tert-butyl ether to dimethyl carbonate is [value missing]. This invention employs a stepped feeding process, solving the problem of combustion improver failure caused by high shear heat generation by cooling the fuel before adding isoamyl nitrate, and ensuring long-term fuel stability at -10°C using a specific polarity gradient ratio. The fuel prepared by this invention has a high cetane number, strong power, and good anti-stratification effect, making it suitable for compression ignition engines.

A method of improving the lubricity of a diesel fuel composition, the method comprising admixing into the composition: (a) at least one ester, amide or imide compound; and (b) at least one small, functionalised aromatic compound.

The invention relates to the technical field of synergists for increasing the oxygen flame temperature of natural gas, in particular to a synergist for increasing the oxygen flame temperature of the natural gas, a preparation method of the synergist, adding equipment of the synergist and an adding method of the synergist. The oxygen flame temperature is increased to 3200 DEG C or above, the cutting and welding speed is higher, the oxygen flame can be injected into liquefied natural gas for liquid mixing in the environment of-160 DEG C, the mixed liquefied natural gas can directly enter the welding and cutting working condition after being gasified, and the low-temperature liquid mixing mode is smaller in liquid molecule distance, more sufficient and uniform in mixing and beneficial to long-distance transportation; and the gas-state molecules are mixed with natural gas in a pipeline in a gas-state manner, and the gas-state molecules are close in spacing and are fully and uniformly mixed, so that long-distance pipeline transportation is facilitated.

The present disclosure relates to demulsifier compositions containing one or more demulsifying polymers and an alkyl carboxylic acid solvent, and methods of using the compositions to separate water-in-oil emulsions.

The invention relates to the technical field of biofuels, and discloses an aviation kerosene biological alternative fuel based on multi-objective optimization, which is characterized in that a comprehensive selection index system comprising density, kinematic viscosity, thermodynamic characteristics (lower calorific value and hydrogen-carbon ratio) and molecular weight is established based on a multi-objective optimization model constructed by a genetic algorithm; the invention discloses a biological fuel formula for replacing RP-3 aviation kerosene by optimizing the design of biological alternative fuel components, the biological alternative fuel is prepared from the following components in parts by volume: 70-80 parts of second-generation biodiesel, 10-15 parts of tetrahydrofuran and 7-15 parts of isopropanol, the components are easy to obtain, the production process is simple, and the biological alternative fuel is suitable for large-scale production. The second-generation biodiesel, tetrahydrofuran and isopropanol are used as raw materials, the obtained biofuel has low kinematic viscosity, the low calorific value reaches 43 MJ / kg or above, the physicochemical property of the biofuel is similar to that of RP-3 aviation kerosene, and the biofuel has good substitutability and wide popularization value.

Method for preventing or reducing corrosion or wear in gasoline engine is provided. The step of the method includes supplying a fuel composition comprising a reaction product of fatty acid and polyamine.

A method of improving the lubricity of a diesel fuel composition, the method comprising admixing into the fuel composition: (a) at least one ester lubricity additive; and (b) at least one aromatic compound including a single carboxylic acid functional group.

The invention discloses a boiler deashing and decoking agent, and belongs to the field of boiler deashing and decoking. Comprising the following substances in parts by weight: 15-20 parts of sodium carbonate, 5-10 parts of sodium sulfate, 20-25 parts of potassium hydroxide, 12-16 parts of 8-hydroxyquinoline sulfate, 10-15 parts of modified nano silicon dioxide, 1-2 parts of polyvinylpyrrolidone, 3-5 parts of potassium chlorate, 2-6 parts of sodium lignin sulfonate, 3-5 parts of polyoxypropylene triol, 2-4 parts of an ethyl acrylate-acrylonitrile copolymer and 20-30 parts of modified calcium carbonate. The modified nano silicon dioxide can be uniformly dispersed in the medicament by virtue of nano-scale particle size and surface modification treatment, so that the contact area with deposited ash and coke blocks is increased, and the removal efficiency is improved; the polyvinylpyrrolidone is helpful for keeping the components in a good dispersion state in the use process, and agglomeration is avoided; and through the synergistic effect of all the raw materials, a good ash removal and decoking effect can be achieved, so that normal use of the boiler is ensured.

The use of (a) amino-based deposition control additives and (b) complex esters in gasoline fuel compositions for the purpose of providing synergistic reduction of engine wear in spark-ignition internal combustion engines fueled by said gasoline fuel compositions, wherein (b) the complex ester is obtained by esterification reaction between (A) at least one aliphatic straight-chain or branched C2 to C12 dicarboxylic acid, (B) at least one aliphatic straight-chain or branched polyhydroxy alcohol having 3 to 6 hydroxyl groups and (c) at least one aliphatic straight-chain or branched C1 to C30 monocarboxylic acid (C1) as a chain terminator in the case of an excess of component (B), or at least one aliphatic straight-chain or branched monocarboxylic acid (C2) as a chain terminator in the case of an excess of component (A).

The application discloses a fuel oil stabilizer for high-viscosity residual oil blending. The fuel oil stabilizer comprises, in percentage by weight, 1-15% of a fatty amine, 0.1-1.5% of a mono-polyisobutene bis-succinimide, 0.1-2% of a non-ionic surfactant alkylphenol polyoxyethylene-polyoxypropylene alcohol ether, 1-30% of alkyl imidazole ionic liquid and / or quaternary ammonium salt ionic liquid, 10-30% of polyvinyl pyrrolidone, 10-20% of an antifoaming agent, and the rest of hydrogenated white oil. The stabilizer has good compatibility, dispersibility, aging resistance and thermal stability for high-viscosity residual oil blending fuel oil.

A method for controlling carbon deposits in an internal combustion engine using a nitrogen-containing surfactant is disclosed. The nitrogen-containing surfactant is 【Chemical 1】 JPEG2026511712000032.jpg1961 defined as or its acceptable salts, [wherein X 1 and X 2 are independently H, C, N, O, or S, and X 1 or X 2 independently contains one or more C2-C 20 alkyl groups or one or more aromatic rings, and each A, B, and D is selected from hydrogen, a monovalent organic group, and a monovalent heterocyclic organic group in the form of a group or moiety bonded through a carbon atom, and any two or more of A, B, and D may optionally be bonded together to form a cyclic structure, and X 1 and X 2 may optionally be bonded together to form a cyclic structure], or one or more nitrogen-containing surfactants selected from aliphatic hydrocarbyl-substituted amines or hydrocarbyl-substituted poly(oxyalkylene)amines. Fuel compositions and concentrate compositions containing the nitrogen-containing surfactant are also disclosed.

A process for producing ethylene and at least one of butanol and an alkyl tert-butyl ether from field butane includes separating the field butane into an n-butane stream and an isobutane stream; cracking the n-butane stream to obtain a cracked product stream comprising n-butane, 1- butene, 2-butene, butadienes, or a combination comprising at least one of the foregoing; and at least one of the following: (1) separating the cracked product stream to obtain a butane stream and a butene stream, and reacting the butene stream with water to obtain a fuel additive comprising butanol, and (2) dehydrogenating the isobutane stream in a dehydrogenation unit to form an isobutene stream and reacting the isobutene stream with an aliphatic alcohol to produce an alkyl tert-butyl ether.

An unleaded aviation fuel composition having a MON of at least 99.6, sulfur content of less than 0.05wt%, CHN content of at least 98wt%, less than 2 wt% of oxygen content, an adjusted heat of combustion of at least 43.5 MJ / kg, a vapor pressure in the range of 38 to 49 kPa, comprising a blend comprising: from 5 vol.% to 25 vol.% of toluene having a MON of at least 107; from 0.5 vol.% to 4 vol.% of aniline;from 30 vol% to 70 vol% of at least one alkylate or alkyate blend having an initial boiling range of from 32°C to 60°C and a final boiling range of from 105°C to 140°C, having T40 of less than 99°C, T50 of less than 100°C, T90 of less than 110°C, the alkylate or alkylate blend comprising isoparaffins from 4 to 9 carbon atoms, 3-20vol% of C5 isoparaffins, 3-15vol% of C7 isoparaffins, and 60-90 vol% of C8 isoparaffins, based on the alkylate or alkylate blend, and less than 1 vol% of C10+, based on the alkylate or alkylate blend; from 0.1 vol.% to 10 vol.% of branched alkyl acetate; at least 8 vol% of isopentane, isobutane, or mixture thereof in an amount sufficient to reach a vapor pressure in the range of 38 to 49 kPa; from 2 vol.% to 10 vol.% of mesitylene; wherein the fuel composition contains less than 1 vol% of C8 aromatics. As well as meeting the requirements of the ASTM D910 specification, the unleaded aviation fuel compositions of the present invention exhibit reduced bladder delamination, improved materials compatibility such as reduced elastomer swelling and reduced paint staining, and improved engine endurance.

A method for preventing adhesion of and clogging with a mineral raw material by performing at least any of transfer and treatment of a raw material mixture in which a mineral raw material has been brought into contact with a cationic w / o emulsion polymer in a transfer and treatment facility and preventing adhesion of and clogging with the mineral raw material in the transfer and treatment facility, wherein the cationic w / o emulsion polymer has an intrinsic viscosity of 10.0 dL / g or less.

The subject of the present invention is the use, for reducing the emissions of nitrogen oxides and at least one type of polluting agent chosen from carbon monoxide and unburned hydrocarbons during the combustion of a liquid fuel in a compression-ignition internal combustion engine, of an additive composition comprising: (i) one or more additives chosen from compounds having in their structure at least one alkyl-phenol group; and (ii) one or more cetane index-improving additives; in which the mass ratio of the quantity of additive(s) (i) to the quantity of additive(s) (ii) is in the range from 1:3 to 3:1.The present invention also relates to a method for reducing emissions of nitrogen oxides and at least one type of polluting agent chosen from carbon monoxide and unburned hydrocarbons during the combustion of a liquid fuel in a compression-ignition internal combustion engine, using this additive composition.

The invention discloses a novel mixed water-based fuel and a processing method thereof, and belongs to the technical field of fuel preparation. The novel mixed water-based fuel is prepared from the following components in percentage by weight: 30% of water, 25% of heavy aromatics, 20% of base oil, 10% of a catalyst, 10% of a dispersing agent, 3% of an environment-friendly detergent and 2% of a combustion improver. The processing method comprises the following steps: putting the purified water into a stirring container, sequentially adding the heavy aromatics, the base oil and the catalyst, and uniformly stirring; heating to 40 + / -5 DEG C, adding a dispersing agent, and stirring; and cooling, adding the combustion improver and the environment-friendly detergent, and uniformly stirring. The formula is scientific and reasonable, the synergistic effect of all the components is remarkable, and the prepared fuel system is stable, full in combustion, low in pollutant emission and outstanding in energy-saving and environment-friendly effect; the processing method is simple and easy to implement, controllable in operation and high in safety, production conditions are easy to realize, dual requirements of laboratory preparation and large-scale industrial production can be met, and the method has a good application prospect.