1182results about "Fuel additives" patented technology

The invention relates to the technical field of catalysts, in particular to a catalyst for fire coal and a preparation process thereof, and the catalyst comprises the following materials in parts by weight: 2-8% of rare earth nitrate, 5-18% of alkaline earth metal salt, 2-5% of alkali metal salt, 0.5-1% of copper-manganese composite oxide, 0.2-1.5% of transition metal salt, 0.1-0.3% of nonionic surfactant, 0.05-0.15% of organosilicon compound and the balance of water. The coal-fired catalyst is specially designed for a power plant, has excellent permeation and adsorption performance, solves the problem that the coal-fired catalyst is difficult to uniformly disperse in blocky coal, promotes full combustion of the coal in the power plant, improves the combustion rate and the burn-off rate, eliminates solid hazardous wastes from the preparation raw materials, ensures safety and environmental protection, and is suitable for industrial production. The power plant can be assisted to save coal resources, emission of harmful pollutants can be reduced from the source, and remarkable economic benefits and environmental benefits are brought to the power plant.

The invention belongs to the related technical field of metal fuels, and discloses an aluminum-lithium alloy powder fuel and a preparation method thereof, the aluminum-lithium alloy powder fuel is prepared from the following raw materials in percentage by mass: 2-10% of Li, 0.1-5% of Mg, 0.1-3% of RE and the balance of Al. The added Mg element can separate out stable, fine and uniformly-distributed intermetallic compounds besides a micro-explosion effect, the activity of Li in the alloy can be reduced, the stability of the fuel can be improved, the added RE element can form an Al3 (Li, RE) precipitated phase with a core-shell structure by taking the precipitated intermetallic compound Al3RE as a heterogeneous nucleation particle of a metastable phase delta '(Al3Li), and the stability of the fuel can be improved. Through targeted component design, the structure regulation and control of the precipitated phase in the alloy powder can be realized, so that the microstructure of the precipitated phase is improved, and the combustion performance of the fuel is improved.

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 fire coal additives, in particular to a high-efficiency coal saving agent and a preparation method thereof. The coal saving agent is prepared from the following raw materials in percentage by mass: 7-14% of an oxygen supply agent, 5-12% of a combustion improver, 5-13% of a catalyst, 0.1-1% of industrial waste residues, 1-3% of a desulfurization additive, 1-2% of a dispersing agent and the balance of deionized water, wherein the catalyst is a Ce-Mn / TiO2 catalyst, and the catalyst is a TiO2 catalyst; the industrial waste slag is selected from at least one of cold-rolled iron oxide slag, nickel slag or steel slag; the desulfurization additive is selected from at least one of calcium acetate, calcium oxide or calcium carbonate. The coal-saving agent can effectively improve the combustion characteristic of coal, improve the combustion efficiency and the combustion effect, and realize the efficient coal-saving effect under the condition of low mixing amount; meanwhile, desulfurization and denitrification can be achieved, emission of sulfide and nitric oxide is reduced, and environmental pollution can be prevented and controlled.

The invention relates to the technical field of biomass liquid fuels, in particular to a biomass liquid fuel and a preparation method thereof, and the biomass liquid fuel comprises the following components by weight: 40-60 parts of biomass-based methanol; 10 to 20 parts of biomass-based ethanol; 5 to 15 parts of biomass-based n-butyl alcohol; 5 to 10 parts of dimethyl ether; 10 to 20 parts of biodiesel; 1-5 parts of a lignin derivative; 0.1 to 0.5 part of an antioxidant; 0.1 to 0.5 part of a stabilizing agent; 0.5-2 parts of a purification dispersant; 1-3 parts of bio-based glycerol n-butyl ether; according to the invention, a plurality of alcohols (methanol, ethanol and n-butyl alcohol) are synergistically used, so that a series with the carbon chain length gradually increasing from C1 to C4 is formed. According to the design, the volatility and the energy density of the fuel are balanced, the oxygen content of the fuel is increased through hydroxyl (-OH) in alcohol molecules, and more complete combustion is promoted.

The invention discloses a coking inhibition additive for heat absorption type hydrocarbon fuel. The coking inhibition additive comprises hydrazine monohydrate, distilled water and stearic acid terminated hyperbranched polyethyleneimine CHPEI. The invention also provides a preparation method of the heat absorption type hydrocarbon fuel coking inhibition additive, which comprises the following steps: weighing hydrazine monohydrate, adding distilled water, and stirring until the hydrazine monohydrate and the distilled water are uniformly mixed; adding CHPEI particles, and stirring until the CHPEI particles are completely dispersed; the mixture is put into a high-speed homogenizer to be stirred, and it is ensured that the mixture is in a uniform sticky paste shape; the invention also provides an application of the heat absorption type hydrocarbon fuel coking inhibition additive. According to the coking inhibition additive and the application thereof provided by the invention, high-temperature coking of aerospace engine fuel can be effectively inhibited; and a pseudo-homogeneous system which is low in freezing point, good in overload resistance stability and uniform in appearance can be formed with hydrocarbon fuel.

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 provides a nanofluid fuel with metal carbide as an additive and a preparation method thereof.The nanofluid fuel comprises liquid fuel, the metal carbide and a surfactant, the metal carbide and the surfactant are evenly dispersed in the liquid fuel, the mass percent of the metal carbide is 1%-40%, the mass percent of the surfactant is 1%-20%, and the mass percent of the liquid fuel is 1%-20%. The mass percent of the surfactant is 1%-15%, and the balance is liquid fuel. By applying the technical scheme, the technical problems that in the prior art, the energy density of liquid fuel is insufficient, and the combustion heat release process of fuel is affected by surface oxidation and combustion products of traditional energy-containing nano metal particles or metal oxide particles are solved.

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

The invention relates to the technical field of catalysts, in particular to a molybdenum-based oxide / carbide / GO heterojunction catalyst, a preparation method thereof and application of the molybdenum-based oxide / carbide / GO heterojunction catalyst in the field of fuel oxidation desulfurization. The preparation method comprises the following steps: S1, adding dimethylimidazole and metal salt into a graphene oxide aqueous solution, and stirring for reaction; s2, adding an aniline monomer and an initiator, dropwise adding phosphomolybdic acid as a molybdenum source, and centrifuging, washing and freeze-drying a product after the reaction is finished to obtain a polyaniline modified ZIFs / GO composite precursor adsorbed with the molybdenum source; and S3, performing high-temperature pyrolysis on the composite precursor in a protective atmosphere to obtain the catalyst. The invention provides a mode of constructing a molybdenum-based oxide / carbide heterostructure by enhancing the electron-donating capability and conductivity of a carrier through double-doped electron-donating elements, and develops a catalyst with high catalytic activity and low cost. The catalytic efficiency in the oxidative desulfurization process can be effectively improved.

The invention provides an environment-friendly low-sulfur diesel oil anti-wear agent, a preparation method and application thereof and a low-sulfur diesel oil anti-wear agent composition, and belongs to the technical field of anti-wear agents. The environment-friendly low-sulfur diesel oil anti-wear agent has a structure shown in the specification. The environment-friendly low-sulfur diesel oil anti-wear agent prepared by the invention has the advantages of excellent anti-wear performance, low acidity, small influence on the use performance of diesel oil, such as corrosivity, combustion performance, total acid value, oxidation stability and the like, capability of improving the oxidation resistance of the diesel oil, compatibility with engine oil, no increase of carbon deposit in an engine, and wide application prospect. # imgabs0 #

The invention relates to the technical field of antistatic agents, and particularly discloses an oil product antistatic agent and a preparation method thereof. The modified polysulfone is obtained by mixing and treating the following raw materials in parts by mass: 35-40 parts of xylene, 20-25 parts of composite polyamine, 15-20 parts of polysulfone, 5-8 parts of oligomeric dopamine and 1-2 parts of an activating agent, the preparation method comprises the following steps: taking composite polyamine, mixing with oligomeric dopamine, dispersing with xylene, then adding an activator, stirring, then adding polysulfone, and continuously treating, thereby obtaining the product. The preparation method of the composite polyamine comprises the following steps: taking epichlorohydrin, dispersing, adding a mixed amine source, heating, adding sodium carbonate, continuously stirring, cooling, adding a deprotection agent, filtering after treatment, taking a liquid part, drying by distillation, washing, drying again, and grinding to obtain the composite polyamine. The oil product antistatic agent prepared by the invention has relatively strong antistatic capability and relatively long duration time, and can form a firmer double-electric-layer structure.

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

A composition including a pyrolysis oil and, as an additive, one or more of: (a) an antioxidant; and (b) a stabilising additive selected from (i) alkoxylated amine compounds; (ii) aldehyde-alkylphenol copolymers; (iii) a quaternary ammonium salt, and mixtures thereof. A method and use for improving the stability of a composition including a pyrolysis oil by addition to the composition one or more of said additives is also provided.

The invention relates to the field of fuel, and discloses a fuel composition and application thereof. The fuel composition comprises a basic fuel and functional fuel addition components, the functional fuel addition components comprise polyoxymethylene dialkyl ether, hydrocarbon, a cetane number enhancer and a lubricant, the hydrocarbon is polycyclic hydrocarbon fuel and / or polycyclic hydrocarbon fuel, and the cetane number enhancer is polycyclic hydrocarbon fuel and / or polycyclic hydrocarbon fuel. The lubricant is selected from dibasic acid monoester compounds and fatty acid and / or fatty acid polyol ester; based on the total mass of the functional fuel additive components, the content of the polyoxymethylene dialkyl ether is 1-70% by mass, the content of the hydrocarbon is 15-90% by mass, the content of the cetane number enhancer is 0.005-10% by mass, and the content of the lubricant is 0.001-5% by mass. The composition is suitable for making up the deficiency of polyoxymethylene dimethyl ethers in plateau areas and improving the power and power performance of fuel engines.

A gasoline modifier, a preparation method therefor and a use thereof, and a clean and environmentally friendly gasoline containing same. By volume, the gasoline modifier comprises 10-30 parts of No. 3 or No. 5 white oil, 5-50 parts of a gasoline detergent synergist and 40-85 parts of isooctyl alcohol; the gasoline detergent synergist comprises a stock liquid and a diluent liquid; the stock liquid is a liquid substance formed by mixing 2-ethylhexyl phosphate and etidronic acid in a weight ratio of 1.8-3:1 and heating to perform an esterification reaction; and / or the stock liquid comprises 2-ethylhexanol, phosphite ester, 2-ethylhexyl acetate, polyisobutylene succinic anhydride and ethylhexyl phosphate; the diluent liquid is formed by mixing formaldehyde having a content greater than 99% with oligomeric water clusters in a weight ratio of 1:4-3:7; and the weight percentage of the stock solution in the gasoline detergent synergist is 0.8%-1.3% white oil. The gasoline modifier is a pure petroleum product. When added to gasoline, it can change the physical properties of the gasoline, and achieve the effects of increasing efficiency, saving fuel, removing carbon and reducing emissions.

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.

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 provides an alcohol-based automotive clean fuel and a preparation method thereof. The alcohol-based fuel comprises the following components in parts by weight: 60-90 parts of methanol, 2-10 parts of ethanol, 1-5 parts of multi-carbon alcohol, 5-15 parts of aliphatic ether, 0.2-2 parts of a catalyst, 2-6 parts of peroxide and 1-3 parts of a corrosion inhibitor. The alcohol-based fuel prepared by the invention has a relatively high octane number, which shows that the anti-knock property is good, and knock is not easy to occur when the alcohol-based fuel is used in an engine; the sulfur content is relatively low, so that the corrosion to engine parts can be reduced, the emission of sulfur dioxide is reduced, and the environmental pollution is reduced; the density is relatively high, so that the combustion heat value can be improved, and the stability in the storage and transportation processes is higher; the copper sheet corrosion grade is low, which shows that the corrosion to metal is low; compared with the prior art, the alcohol-based fuel has low emission of HC, CO and NOx, which indicates that the alcohol-based fuel is greener and cleaner, and the raw materials such as methanol and ethanol can be prepared from renewable resources such as wood chips, corncobs, cereals and straws, so that the requirement of sustainable development is met.

The present application relates to the field of environmental protection additives, specifically disclosing a natural gas low-temperature combustion-supporting environmental protection additive and its preparation method. The natural gas low-temperature combustion-supporting environmental protection additive comprises the following substances in parts by weight: 10 to 50 parts of dimethyl carbonate, 0 to 10 parts of methyl tert-butyl ether, 10 to 20 parts of methanol, and 15 to 20 parts of dispersed catalytic particles; the dispersed catalytic particles are carbon aerogels adsorbed with nano-Pt particles. The natural gas low-temperature combustion-supporting environmental protection additive of the present application uses dimethyl carbonate, methyl tert-butyl ether, and methanol as liquid matrices, and a carbon aerogel material adsorbed with the precious metal Pt as a catalytic material. The environmental protection additive material is effectively coated and loaded in the boiling gas phase. A uniform bonding form is formed between the gas-phase environmental protection additive and the natural gas, so that the methane in the natural gas opens the gas-hydrogen-oxygen bond under the action of the environmental protection additive at 80 to 100°C, effectively catalyzing the combustion of natural gas in an oxygen-rich state, further improving the activity of natural gas in a low-temperature environment.

The invention belongs to the technical field of additives for coal-fired boilers, and particularly relates to a coal-saving desulfurization ash-removal decoking agent applied to boilers. The coal-saving, desulfurization, ash-removal and coke-cleaning agent is prepared from the following components: a component A, a component B and a component C, wherein active components CaO, HoFeO3 and CeO2 are loaded on a carrier SrO-MgO; the component B is prepared by loading the active components MgCO3 and KNO3 on the carrier BaFe12O19; the component C is Cu-doped CoFe2O4, and the component C is Cu- The mass ratio of the component A to the component B to the component C is (5-8): (2-3): 1. The coal-saving desulfurization ash-removal coke cleaning agent can effectively save fuel, improve the sulfur fixation efficiency, reduce generation of coke scales on the furnace wall, remove old coke scales, improve the working condition of a circulating fluidized bed boiler and greatly reduce the operation and maintenance cost of the circulating fluidized bed boiler.

The present invention provides a coal-saving, desulfurization, and decoking catalyst for boilers and an application method thereof. Through the synergistic effect of multiple components, the catalyst can simultaneously achieve coal-saving, desulfurization, decoking, corrosion protection, and ash cleaning functions during boiler operation, effectively solving the problems of single function, low desulfurization efficiency, poor decoking effect, and insufficient adaptability in the prior art. The desulfurization catalyst neutralizes sulfur oxides in flue gas, reducing low-temperature slagging. The temperature-sensitive expansion particles dynamically expand and peel off hard coke. The porous carrier particles adsorb ash and complex salts. The high-temperature retention loosening agent and the catalyst work together to prevent secondary accumulation, improve heat transfer conditions, and increase boiler thermal efficiency. The coal-saving agent reduces fuel consumption. The metal protective agent forms an anti-corrosion film on the heated surface, extending the life of the equipment and significantly improving the economic efficiency of boiler operation.

The invention is suitable for the technical field of coal, and provides a high alkali metal coal slag adhering method, which comprises the following steps: step 1, analyzing the occurrence form and content of alkali metal: firstly, analyzing the occurrence form and content of alkali metal in coal, including four forms of water-soluble alkali metal, ammonium acetate solubility, diluted hydrochloric acid solubility and insoluble alkali metal, according to the invention, the slag adhering problem of the high alkali metal coal is reduced, the combustion efficiency and environmental protection property of the coal are improved, the combustion and gasification efficiency of the coal is improved, the environmental pollution is reduced, through reasonable coal blending, the utilization efficiency of coal resources is improved, the production cost is reduced, the low alkali coal can be effectively utilized to improve the combustion characteristics of the high alkali coal, and the slag-bonding and contamination problems of a boiler are reduced; meanwhile, safe and economical operation of the boiler is guaranteed, the components of the coal ash can be effectively regulated and controlled, the utilization value of the coal ash is improved, the environmental influence is reduced, cyclic utilization of resources is achieved, and the slag adhering phenomenon of the high alkali metal coal in the combustion and gasification process can be more accurately predicted and controlled, so that effective prevention and solution measures are taken.

The present invention relates to the technical field of clean fuels, and in particular to an ether-based clean fuel for vehicles and a preparation method thereof, comprising the following raw materials in parts by weight: 35-45 parts of methyl tert-butyl ether, 15-20 parts of isobutanol, 10-15 parts of methanol, 4-7 parts of flaky graphene agents based on doping cerium / yttrium, 2-4 parts of dimethyl ether, 1-3 parts of ferrocene, and 3-6 parts of regulating modifiers. The clean fuel of the present invention adopts methyl tert-butyl ether to match isobutanol, methanol, dimethyl ether and ferrocene raw materials, and the flaky graphene agent based on doping cerium / yttrium and the regulating modifier are added to coordinate and synergize, so that the combustion performance of the product is excellent, and the corrosion performance and water resistance of the product are remarkable, the product performance balance and coordination are improved, and the product has a remarkable product performance stability effect in a low temperature environment.

The present invention deals with a resin obtainable from at least one 4-(2-(alkoxy)ethyl)phenol compound with at least one aldehyde, and a composition comprising said resin. The instant invention further pertains to the use of such a composition as an additive in a petroleum product such as a crude oil or any product which results therefrom by any refining and / or extraction process. The additive composition of the invention is especially useful for dispersing asphaltenes in petroleum products. In addition, the invention aims at providing a petroleum product comprising such an additive composition, as well as a method for preventing the precipitation of asphaltenes present in a petroleum product, wherein an additive composition as defined herein is added.

The invention discloses a preparation method and application of an efficient desulfurizing agent, and belongs to the technical field of desulfurizing agent preparation. The preparation method of the efficient desulfurizing agent comprises the following steps: step 1, adding ferric salt and magnesium salt into a container containing distilled water, stirring and dissolving to obtain a mixed solution A, then adding a modified template agent and a pore-forming agent into the container containing distilled water, stirring and dissolving to obtain a mixed solution B; 2, uniformly mixing the mixed solution A and the mixed solution B, heating and stirring to obtain a colloidal solid C, freeze-drying the colloidal solid C, calcining and grinding to obtain a spongy composite oxide; and step 3, adding the spongy composite oxide into a tetrahydrofuran solution containing the modifier, sealing and stirring, putting into a reaction kettle, carrying out hydrothermal reaction, and after the reaction is finished, filtering, washing and drying to obtain the efficient desulfurizer. The high-efficiency desulfurizing agent prepared by the method has an excellent desulfurizing effect.

A process dissolves or disperses asphaltenes from marine fuels by using at least one quaternary ammonium compound. A weight ratio of saturates to asphaltenes in the marine fuel is at least 4.0. A marine fuel is produced that includes saturates, aromatics, and asphaltenes in addition to at least one quaternary ammonium compound. Another process reduces or prevents fouling caused by asphaltenes in a marine fuel.

A corrosion inhibition composition includes a carrier fluid and corrosion inhibitor consisting essentially of a compound represented by Formula (I):where R1, R2, R3, and R4 are each, independently, a hydrogen or an alkoxy group, and m and n are each, independently integers ranging from 2 to 10, where R5 and R6 are each, independently, a saturated C6-C10 hydrocarbon group or an unsaturated C6-C10 hydrocarbon group. A method of producing a corrosion inhibition composition consisting essentially of an ethoxylated diamine corrosion inhibitor and a carrier fluid and a method for inhibiting corrosion in a refined hydrocarbon-bearing system are also described.

The present invention belongs to the field of fuel additives. The present invention provides a method for synthesizing a cleaning dispersant. Polyisobutylene, phosphorus pentasulfide and sulfur powder are subjected to a sulfurization reaction to obtain a sulfurization product solution. The sulfurization product solution is subjected to a hydrolysis reaction using xylene and tap water to obtain a hydrolyzate solution. The hydrolyzate solution is subjected to extraction and esterification reactions using an extractant and pentaerythritol, respectively, to obtain the cleaning dispersant. The phosphorus content of the final product of this process is increased from the original 0.82% to 1.78%, and the yield is increased from the original 53.0% to 76.8%. Based on small-scale tests, the present invention has obtained the optimal reaction conditions through a large number of rigorous pilot tests, and is expected to be suitable for industrial production.

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.