30results about How to "No carbon deposition" patented technology

The invention relates to a clean fuel, in particular to a coal-based composite domestic fuel so as to solve the problem that existing domestic fuel oil has a lot of disadvantages. The composite domestic fuel is composed of light coal tar, methanol, a dispersing agent, a corrosion inhibitor, and a combustion-supporting agent. The light coal tar is the distillate distillated from coal tar during fractional distillation under a temperature below 280DEG C, and has a density of 0.91-0.99g/ml. The dispersing agent is any of polyisobutylene succinimide, phosphoric acid amide, alicyclic amine, and succinimide or a mixture of several of them in any proportion. The corrosion inhibitor is any of oleic acid glycol ester, N, N-bis(salicylidene)-propanediamine, benzotriazole, 2, 6-di-tert-butyl-p-cresol or a mixture of several of them in any proportion. The combustion-supporting agent is any of calcium naphthenate, magnesium naphthenate, iron naphthenate, and ferrocene or a mixture of several of them in any proportion. Being easy to ignite, the composite domestic fuel provided in the invention has good atomizing performance, more sufficient combustion, as well as higher thermal efficiency, the smoke blackness and other emission indexes all meet the requirements, and the economic effects are more significant.

The present invention relates to an application of a NiO/MgO solid solution catalyst in a coke oven coal gas steam reforming hydrogen production method at a low water carbon ratio, wherein a mass percentage of Ni is 6.9-43%, and the catalyst has characteristics of simple preparation process, high activity at a high temperature and a low water carbon ratio, no carbon deposition and good stability. According to the present invention, during a reforming process at a temperature of 875 DEG C and a H2O/CH4 ratio of 1, a methane conversion rate is maintained to 95-98%, and a carbon dioxide conversion rate is maintained to 52-54%; at a temperature of 875 DEG C and SV of 12600 mL/g.h, when a H2O/CH4 molar ratio is increased to 0.9 from 0.3, a methane conversion rate is correspondingly increased to 98.3% while a carbon dioxide conversion rate is reduced to 67.2% from 88. 4%; and when a reaction temperature is increased to 900 DEG C from 600 DEG C, a methane conversion rate and a carbon dioxide conversion rate are respectively increased to 98.7% and 601%.

The invention relates to an automobile gasoline composite modifying agent. The raw material of the modifying agent is prepared from the following components in percentage by weight: 25-50% of an octane value promoter, 30-50% of a combustion improver and 20-25% of a latent solvent, wherein the octane value promoter comprises the following components in percentage by weight: 20-45% of sec-butyl acetate, 30-40% of diisopropyl ether, 5-10% of absolute ethyl alcohol and 20-30% of methyl tert-butyl ether; the combustion improver comprises the following components in percentage by weight: 10-20% of cyclopentane, 47-50% of mixed light arene, 30-40% of alkylate and 3-6% of 1# jet fuel; and the latent solvent comprises the following components in percentage by weight: 10-30% of acetone, 25-30% of dimethoxy ethane, 20-25% of industrial isobutyl alcohol, 22.5-28% of industrial isopropyl alcohol, 1-4% of trinitromethane, 1-2% of glycol ethylene ether, 0.1-0.2% of a clearing agent polyisobutene succinimide, 0.2-0.4% of a metal deactivator T1201 and 0.2-0.4% of an antioxidant. By adopting the automobile gasoline composite modifying agent, a three-way catalyst of an organic ashless exhaust system cannot be poisoned, a fuel spray nozzle and a cylinder exhaust valve cannot be abraded, and carbon deposition and abrasive particles cannot be generated in a machine body.

The invention relates to air compressor oil, comprising a phenolic antioxidant, a phenylamino antioxidant, an olefine acid antioxidant, a metal deactivator, an ash-free antiwear agent, a defoamer, a light-sensitive agent, a hydrogenation paraffin base oil fraction, a hydrogenation naphthenic base oil and a hydrogenated alkyl high boiling substance. The invention also provides a preparation method of the air compressor oil. The air compressor oil disclosed by the invention has excellent high-temperature carbon deposit resistance, excellent high-temperature oxidation resistance, and excellent abrasion resistance, and simultaneously has excellent lubricating property, anti-foaming property and demulsibility on the product, the cost performance of the product is improved, the performances of the synthetic air compressor oil and composite synthetic air compressor oil are achieved, and the long-term work requirements of single-screw and dual-screw air compressors are completely met.

The invention relates to an electrochemical reforming system for dry reforming of methane and carbon dioxide and a construction method and a using method of the electrochemical reforming system for dry reforming of methane and carbon dioxide. The electrochemical reforming system for dry reforming of methane and carbon dioxide and the construction method and the using method of the electrochemical reforming system for dry reforming of methane and carbon dioxide aim at solving the problem that because of high-temperature condition limitation in an existing reforming reaction and carbon deposition, catalyst deactivation is caused. The system comprises a plurality of electrolytic tank thin pieces, a reactor and an external power source. The construction method includes the steps that firstly, an electrolyte thin film is prepared through a tape casting method; secondly, electrodes are prepared through a silk-screen printing method, and , and porous electrodes are obtained through a pore-forming agent and high-temperature calcination; thirdly, a confluence layer is prepared, and the electrolytic tank thin pieces are obtained after high-temperature sintering; and fourthly, the electrolytic tank thin pieces are placed in the reactor, and the power source is connected. The constructed system has the characteristics that the methane conversion efficiency is high, synthetic gas selectivity is high, and carbon deposition is avoided, and the preparation technology is simple, low in cost and easy and convenient to operate. The electrochemical reforming system for dry reforming of methane and carbon dioxide and the construction method and the using method of the electrochemical reforming system for dry reforming of methane and carbon dioxide belong to the electrochemical reforming field of dry reforming of methane and carbon dioxide.

An improved cylinder features that two parallel piston rings are in a slot on piston, the joint of piston ring is butt connected in step mode, the joints of two piston rings are staggered. It is possible that two piston rings are sleeved together. Its advantages are high durability and sealing performance, and elongated service life of engine.

The invention provides a graphene modified conductive polystyrene composite material for a precision electronic carrier tape and a preparation method thereof. The graphene modified conductive polystyrene composite material contains a polymer formed by the following components: polystyrene, a grafting agent and an organic amine modified conductive filler, wherein the conductive filler comprises graphene. The polystyrene-based composite material has good shrinkage rate, high strength and excellent electrical properties; all the components in the composite material have good interfacial compatibility, and chemical crosslinking or physical entanglement among all the components is sufficient, so interface bonding strength is high, surface resistance is uniform, the surface is fine and smooth, and a crystal point phenomenon is not liable to occur; and thus, at least part of the electronic carrier tape formed by the polystyrene-based composite material is not liable to have the problems of pocket deformation, tape strip tearing and unsmooth bag entry and exit of electronic components, the phenomenon of carbon deposition is avoided, and high flatness is realized.

The invention relates to a vehicle methanol fuel capable of protecting machines, the vehicle methanol fuel comprises, by weight, 90%-99% of methanol and 1%-10% of a stable modifying agent, the stable modifying agent comprises, by weight, 1-50 parts of isopropanol, 1-50 parts of n-hexane, 1-50 parts of acetone, 1-50 parts of ethanol, 1-50 parts of n-propanol, 1-50 parts of ethyl acetate, 1-50 parts of methyl tert butyl ether, 1-50 parts of tert butyl alcohol, 1-50 parts of isopropyl ether, 1-50 parts of neutral red, 1-50 parts of xylene and 1-50 parts of diethyl malonate. The product octane number of the vehicle methanol fuel is more than 90 via detecting, the vehicle methanol fuel has a plurality of advantages of good antiknock quality and stability, suitable vaporability, excellent cleaning property, non corrosiveness and the like, and compared with gasoline of the same kind, the mechanical wear is less, and the potential corrosion effect of the methanol on engine system components can be eliminated.

The invention discloses a high-temperature energy-saving furnace comprising an igniter arranged on a furnace base, an ignition oil inlet and a furnace pipe which is buckled on the furnace base and communicated with an oil delivery pipeline, wherein the furnace pipe comprises an outer pipe, a pipe base, fuel pipes, a three-way pipeline, an evaporation ball body and at least one inner pipe; the pipe base is fixedly arranged at the bottom of the outer pipe; the oil delivery pipeline is communicated with the outer pipe; the outer pipe and each inner pipe as well as the inner pipes are communicated through the fuel pipes, tapered in diameter and coaxially arranged; the three-way pipeline is respectively communicated with the inner pipes and an inner oil delivery cavity of the evaporation ball body at the bottoms of the inner pipes; the upper part of the evaporation ball body is provided with multiple oil spit holes. According to the furnace, liquid fuel is converted into gas fuel through cyclic gasification of the furnace pipe, the fuel molecular formula effect of the liquid fuel is changed, the use ratio of the gas fuel is increased by 30-40% when being compared with that of existing fuel, the pressure of the fuel is improved and then the combustion temperature is increased accordingly, no smoke, smell and carbon deposition residue exist in the combustion process, the full utilization of resources is realized, and the low-carbon, energy-saving and environment-friendly effects are realized.

The invention relates to the technical field of catalysts, and provides an organic contaminated soil thermal desorption waste gas catalytic oxidation purification catalyst and a preparation method and application thereof. The catalyst provided by the invention comprises a matrix, a carrier and active components, the matrix is honeycomb cordierite, the carrier is a CeO2-ZrO2 compound or a CeO2-ZrO2-R compound (R is one or more of La2O3, Co3O4, Y2O3 and SiO2), the active components are MnO2 and RuO2, and an auxiliary agent WO3-TiO2 is further loaded on the matrix. The catalyst provided by the invention has high catalytic efficiency in a temperature range of 450-650 DEG C, can completely convert organic contaminated soil thermal desorption waste gas, has good high-temperature stability, strong sintering resistance and carbon deposition resistance, and also has good alkali, alkaline earth and heavy metal resistance, chlorine resistance and sulfur poisoning resistance.

The invention belongs to the technical field of liquid fuel, and more specifically relates to a high-energy alcohol-based fuel additive for military use and a preparation method thereof. The additivecomprises the following raw materials in parts by weight: 5-10 parts of ethanol, 3-5 parts of triacetin, 4-7 parts of a cation fluorocarbon surfactant, 1-4 parts of ferric nitrate, 10-15 parts of a hydrocarbon compound, 10-15 parts of a combustion improver, 3-5 parts of a stabilizing agent, 3-5 parts of an anti-knock agent, and 1-4 parts of a deodorant. The composite additive can be added into thealcohol-based fuel, in order to substantially improve calorific value of the fuel, ensure fully and thoroughly combustion without generation of carbon deposition phenomenon, and improve corrosion resistance and stability of the fuel.

The invention discloses a device for extracting and concentrating an arsenic-containing sample to be tested. The device comprises a concentration bottle (2), a constant-temperature heater (1), an SO3 absorption bottle (9) and a gas guide pipe (5), wherein the concentration bottle (2) is arranged on the constant-temperature heater (1); the absorption bottle (9) is filled with alkali absorption liquid; the concentration bottle (2) and the absorption bottle (9) are provided with ground stoppers; the concentration bottle (2) is connected with the absorption bottle (9) through the gas guide pipe (5); and the tail end of the gas guide pipe (5) extends into the alkali absorption liquid. When the device is used for extracting and condensing the arsenic-containing sample, arsenic content is not affected and arsenic measuring accuracy is enhanced; simultaneously, environmental pollution is prevented in extraction and concentration processes.

The invention belongs to the technical field of fuel. High-calorific-value environment-friendly combustion oil is disclosed and comprises the following components in percentage by mass: 5-10% of methanol, 0.01-1% of ethanol, 5-10% of 1,2-propylene glycol, 35-45% of ethylene glycol, 1-3% of 1,3-dioxane-2-methanol, 30-40% of 1,2-butylene glycol, 0.01-1% of 1,2-hexanediol, 0.01-1% of 1,4-butylene glycol, and 0.01-1% of diethylene glycol, with the balance being water. The combustion oil is high in combustion heat value, sufficient and thorough in combustion, free of carbon deposition after combustion, stable in flame, high in combustion efficiency, good in safety, efficient and environmentally friendly.