323results about "Fuel additives" patented technology

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 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 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.

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.

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.

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.

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).

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 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.

The present invention relates to a method for preparing a polyisobutyl benzene sulfonate comprising the steps of alkylation of benzene with a terminal unsaturated polyisobutene to produce a polyisobutyl benzene, sulfonation of the polyisobutyl benzene to produce a polyisobutyl benzene sulfonic acid, and neutralizing the polyisobutyl benzene sulfonic acid to produce a polyisobutyl benzene sulfonate. The invention also relates to the polyisobutyl benzene sulfonate, the polyisobutyl benzene sulfonic acid, the polyisobutyl benzene, and to a lubricant comprising the polyisobutyl benzene sulfonate, to a fuel comprising the polyisobutyl benzene sulfonate, and to a use of the polyisobutyl benzene sulfonate as lubricant additive or fuel additive.

The present invention relates to a method of powering a diesel engine with a fuel emulsion, the method comprising the step of preparing a fuel emulsion by emulsifying a fuel and water in the presence of an emulsifier package comprising a branched surfactant of formula (I) as defined below and optionally a propoxylated surfactant of formula (II) as defined below. It further relates to a fuel emulsion for powering a diesel engine.

The invention provides a process and equipment for preparing biomass briquette from municipal solid waste. The invention relates to a process for preparing biomass briquette coal from municipal solid waste. The process comprises the following steps: S1, pretreating waste impurities; s2, drying and modifying; s3, crushing and mixing; s4, molding and pressing; s5, curing and curing; and S6, finished product detection and packaging. According to the technology for preparing the biomass briquette from the municipal solid waste, non-combustible impurities in the waste are precisely removed through pretreatment, the bonding performance and combustion performance of materials are improved through modification treatment, the forming and curing technology is precisely regulated and controlled, and the biomass briquette is prepared. The prepared biomass briquette is high in strength, stable in calorific value, high in combustion efficiency and low in pollutant emission, biomass components in household garbage are converted into clean renewable energy sources, environmental pollution caused by garbage landfill and incineration is effectively reduced, the resource utilization rate of waste is increased, the pressure of fossil fuel shortage is relieved, and environmental protection is achieved. And the method has remarkable environmental benefits and social benefits.

The invention also provides a briquette comprising:(i) a particulate material; and(ii) a binder, the binder comprising (a) at least partially saponified polyvinyl alcohol and (b) an alkali metal alkyl siliconate or polyalkylsilicic acid; wherein the particulate material is selected from a carbonaceous material, metal, metal ore, mineral waste or a mixture thereof.

This invention belongs to the field of diesel additive technology, and particularly relates to a diesel cetane number improver and its preparation process, comprising the following steps: mixing isooctyl nitrate, n-hexadecane, n-eicosane, oleic acid, and 2,6-di-tert-butyl-p-cresol to obtain a premix; mixing anhydrous ethanol, glycerol, and an emulsifier, adding the premix, reacting, and drying to obtain microparticles; mixing ethyl acetate, isopropanol, n-butanol, and an emulsifier, adding hexadecyl alcohol and EVA-210 to dissolve, to obtain a film-forming solution; mixing ethyl acetate and isopropanol, adding the microparticles and the film-forming solution, removing ethyl acetate, isopropanol, and n-butanol, adding the solution to liquid paraffin and mixing to obtain the diesel cetane number improver. The diesel cetane number improver prepared by this invention can prevent isooctyl nitrate from directly contacting the external environment, slow down the generation rate of free radicals, effectively improve and stabilize the cetane number of diesel, and maintain the cetane number of diesel at a high level for a longer period of time.

The invention discloses carboxyalkylated lignin as well as a preparation method and application thereof in coal gasification wastewater coal slurry, and belongs to the technical field of coal water slurry. The carboxyalkylated lignin with a three-dimensional structure is obtained by introducing a carboxyalkyl branched chain into a lignin structure through a graft copolymerization method. The preparation method comprises the following steps: dissolving lignin in deionized water or isopropanol, adjusting the pH value to 11-12, adding a reaction reagent with a carboxyl functional group and an alkyl chain, and reacting in a water bath at 60-80 DEG C for 2-4 hours; then adjusting the pH value to 6-7; and washing, centrifuging and purifying to obtain the carboxyalkylated lignin. Carboxyalkylated lignin is used as a dispersing agent to be applied to a system for preparing coal water slurry from coal gasification wastewater, coal particles can be fully dispersed and stabilized in a complex coal gasification wastewater system by using fewer adsorption sites, and the carboxyalkylated lignin can be used as the dispersing agent to remarkably improve the slurrying performance and long-term stability of coal gasification wastewater coal slurry.

The invention discloses aluminum-based powder fuel with a grain boundary oxygen vacancy channel and a preparation method and application of the aluminum-based powder fuel, and particularly relates to the technical field of metal fuel and aluminum-based alloy powder fuel. The method comprises the following steps: heating and melting pure aluminum to form an aluminum melt; then, Al-RE intermediate alloy is added into the aluminum melt, and the total content of the rare earth element RE in the melt is adjusted to be 0.1-7 wt%; and finally, the uniformly mixed melt is subjected to controlled supersonic atomization and rapid solidification, and the aluminum-based alloy powder is obtained. According to the invention, after powder combustion, a rare earth oxide channel rich in oxygen vacancy defects is constructed at a crystal boundary, and then oxidative combustion is further promoted. Lattice distortion and in-situ solid solution of boron atoms are caused by the radius difference of double rare earth (Ce / La) atoms, so that the formation energy of oxygen vacancies is greatly reduced. In the combustion process, high-concentration oxygen vacancies form a high-speed oxygen transmission channel, barrier of a compact oxidation film is broken, oxygen can rapidly permeate into particle cores, and the burn-off rate and energy release efficiency of aluminum powder are remarkably improved.

The invention belongs to the technical field of diesel additives, and particularly provides a low-sulfur ash-free functional composite diesel anti-wear agent and a preparation method thereof. The functional composite diesel oil anti-wear agent comprises the following raw materials: 100 parts of soybean oleic acid, 4-8 parts of an emulsifier, 1-3 parts of an electrolyte, 0.5-1.5 parts of a lubricant, 0.2-0.5 part of a metal deactivator, 1-2 parts of a functional auxiliary agent and 200-300 parts of deionized water. The composite diesel oil anti-wear agent is excellent in anti-wear performance, has the functions of oxidation resistance, corrosion resistance and the like, and meets the higher requirements of modern low-sulfur diesel oil on the comprehensive performance of the additive.

This invention discloses a graphene oxide / carbon nanotube-based coal combustion catalyst, its preparation method, and its applications, belonging to the field of catalytic combustion technology for efficient coal utilization. First, graphene oxide is used as a carrier, and then carbon nanotubes and manganese oxide are grown on its surface in a one-step process using condensation and redox reactions, followed by co-firing with coal. The graphene oxide / carbon nanotube-based combustion catalyst prepared by this invention effectively improves combustion efficiency, reduces the ignition temperature of coal, and lowers the reaction activation energy, resulting in significant economic benefits and broad application prospects.

The invention belongs to the technical field of surface modification of boron powder, and particularly relates to a process for excessively adding boron powder into an energetic material. The process comprises the following steps: modifying a boron powder raw material by using a phthalic ester coupling agent as a modifier to obtain modified boron powder; the preparation method comprises the following steps: adding stearic acid into an energetic material, heating and mixing, and then adding a surfactant to obtain a mixed solution; and adding the modified boron powder into the mixed solution in batches, and stirring and dispersing until no particles or sedimentation is generated. After the boron powder is modified by the titanate coupling agent, the viscosity of the obtained modified boron powder system is remarkably reduced, and the modified boron powder system has good lubricity and rheological property. When the boron powder is used in an energetic material, the addition amount of the boron powder can be remarkably increased by adding the surfactant into the energetic material such as hydrocarbon fuel. The energy level of the liquid energetic material is improved by adding the modified boron with high energy density, and the maximum addition amount of the boron powder in aviation kerosene can reach 78.6% due to excessive addition of the boron powder in aviation kerosene.

The invention discloses high-silicon aluminum coal of a composite fluxing agent and a preparation method, and belongs to the field of coal chemical industry. Through optimized compounding of dolomite, hematite and rare earth metal, the flowing temperature of the high-silicon-aluminum coal is controlled to be gt; and the temperature of 1500 DEG C is obviously reduced to 1390-1430 DEG C, so that the process requirements of liquid deslagging of the gasification furnace are met. According to the invention, dolomite and hematite are respectively ground into large particle sizes, are mixed and then are finely ground, so that the fluxing agent is uniformly mixed and calcined and then is jointly ground with high-silicon aluminum coal, and the mixing efficiency and dispersity are obviously improved. The composite fluxing agent is wide in raw material source and low in cost, and an effective solution is provided for efficient and clean utilization of the high-silicon-aluminum coal.

The invention relates to the technical field of diesel additives, and particularly discloses a multi-effect composite diesel additive and a preparation method thereof. The additive comprises the following components in parts by weight: 7-11 parts of an anti-wear agent, 5-8 parts of a cetane number improver, 4-6 parts of a clearing agent, 2-3 parts of an antioxidant, 3-4 parts of a solubilizer, 3-4 parts of a pour point depressant, 1-2 parts of a preservative and 4-7 parts of a multifunctional additive. The invention also provides a preparation method of the composition. All the components act together to achieve the multiple effects of improving the combustion quality, reducing emission, strengthening lubrication and the like, in addition, the prepared auxiliary agent integrates multiple functions, and the oil phase adaptability and the functional strength can be guaranteed.

The present invention relates to a method for producing a carbon dioxide absorbent and a desulfurization catalyst, the method comprising the steps of: (S10) introducing an illite powder into a reaction bath storing water heated to 40 to 100° C., followed by stirring; (S20) introducing sodium hydroxide into the reaction bath, followed by stirring; (S30) separating and filtering a supernatant from the reaction bath; and (S40) separating a precipitate from the reaction bath.

A fuel composition for producing an emulsion explosive composition comprises a mixture of a liquid fuel and an emulsifying agent, wherein the emulsifying agent comprises nanoparticles in a weight % that is from about 0.05% to about 2% of the weight of the fuel composition.

The present disclosure relates to methods and fuel compositions for reducing or eliminating fuel injector deposits in high pressure gasoline engines. The fuel compositions include gasoline and a synergistic combination of a fuel injector clean-up mixture including a heterocyclic amine, diamine, or open chain derivative thereof and a hydrocarbyl substituted dicarboxylic anhydride derivative selected from a diamide, acid / amide, acid / ester, diacid, amide / ester, diester, and imide.

The present application relates to the structure of the formula (I) or formula (II) shown in the methyl oleate succinic alcohol ether ester, wherein, R1 It is selected from -CH2-, -CH2CH2-, -CH (CH3) CH2-, -CH2CH (CH3)-; N It is selected from the integer of 1-15; R2 It is selected from the substituted or unsubstituted C1-C 40 Hydrocarbon group. The present application also relates to the preparation method of the methyl oleate succinic alcohol ether ester and the diesel composition comprising the methyl oleate succinic alcohol ether ester. The methyl oleate succinic alcohol ether ester provided by the present application can significantly improve the lubricating property of low sulfur diesel, and has excellent effect of improving the lubricating property of diesel with small addition amount in diesel, and the freezing point of the methyl oleate succinic alcohol ether ester is low, which can be normally used under low temperature environmental conditions.