阅读说明：本技术 一种柴油燃油系统清洗剂及其制备方法 (Cleaning agent for diesel fuel system and preparation method thereof ) 是由 吴鑫鑫 侯香 塔林夫 于 2020-05-27 设计创作，主要内容包括：本发明公开了一种柴油燃油系统清洗剂及其制备方法,制备柴油燃油系统清洗剂的原料按其重量份包括：助溶剂30份～50份、大豆油8份～17份、分散剂3.5份～8.5份、聚异丁烯胺7份～16份、二茂铁0.8份～1.4份、缓蚀剂1.2份～2.8份、助燃剂3.5份～6.5份、改性Y型分子筛0.8份～1.5份。本发明制备的柴油燃油系统清洗剂与柴油的共混性好,可以使柴油的燃烧性大大提高,减少有害气体和颗粒的排放,清除积碳效果明显,不会对燃烧系统造成损害,并且制备方法简单,制备工艺易操作,适合大规模生产推广。(The invention discloses a cleaning agent for a diesel oil and fuel oil system and a preparation method thereof, wherein the cleaning agent for the diesel oil and fuel oil system is prepared from the following raw materials in parts by weight: 30 to 50 portions of cosolvent, 8 to 17 portions of soybean oil, 3.5 to 8.5 portions of dispersant, 7 to 16 portions of polyisobutene amine, 0.8 to 1.4 portions of ferrocene, 1.2 to 2.8 portions of corrosion inhibitor, 3.5 to 6.5 portions of combustion improver and 0.8 to 1.5 portions of modified Y-type molecular sieve. The cleaning agent for the diesel fuel system prepared by the invention has good blending property with diesel, can greatly improve the combustibility of the diesel, reduce the discharge of harmful gas and particles, has obvious effect of removing carbon deposition, can not cause damage to the combustion system, has simple preparation method and easy operation of preparation process, and is suitable for large-scale production and popularization.)

1. The cleaning agent for the diesel oil and fuel oil system is characterized by comprising the following raw materials in parts by weight: 30 to 50 portions of cosolvent, 8 to 17 portions of soybean oil, 3.5 to 8.5 portions of dispersant, 7 to 16 portions of polyisobutene amine, 0.8 to 1.4 portions of ferrocene, 1.2 to 2.8 portions of corrosion inhibitor, 3.5 to 6.5 portions of combustion improver and 0.8 to 1.5 portions of modified Y-type molecular sieve.

2. The cleaning agent for the diesel fuel system as claimed in claim 1, wherein the cosolvent is methanol, n-hexane and isobutanol which are mixed according to a weight ratio of 2: 1.5-3.5: 3-6.

3. The cleaning agent for the diesel fuel system as claimed in claim 1, wherein the dispersant is obtained by mixing nonylphenol polyoxyethylene ether amine, linolic acid amine, and polyisobutylene phenol amine in a weight ratio of 1: 1.2-2.4: 0.5-1.5.

4. The cleaning agent for the diesel fuel system as claimed in claim 1, wherein the corrosion inhibitor is prepared by mixing diethanolamine and methyl isobutyrate in a weight ratio of 10: 2-5.

5. The cleaning agent for the diesel fuel system as claimed in claim 1, wherein the combustion improver is selected from cerium naphthenate, barium naphthenate and active cobalt acetate in a weight ratio of 10: 2-3: 0.8-4.5.

6. The cleaning agent for the diesel fuel system as set forth in claim 1, wherein the preparation method of the modified Y-type molecular sieve comprises the following steps: mixing 100 parts of Y-type molecular sieve, 1.2-2.5 parts of cross-linking agent, 0.8-1.8 parts of activated alumina, 2-6 parts of activated carbon and 1.5-3.2 parts of sodium molybdate, stirring at a high speed of 4000-4500 rpm for 25-35 minutes, drying and crushing into 600-1000-mesh powder to obtain the modified Y-type molecular sieve.

7. The cleaning agent for the diesel fuel system as defined in claim 1, wherein the raw materials for preparing the cleaning agent for the diesel fuel system comprise, by weight: 40 parts of cosolvent, 12 parts of soybean oil, 6 parts of dispersant, 12 parts of polyisobutene amine, 1.1 parts of ferrocene, 2 parts of corrosion inhibitor, 5 parts of combustion improver and 1.2 parts of modified Y-type molecular sieve.

8. A preparation method of a cleaning agent for a diesel fuel system according to any one of claims 1 to 7, characterized by comprising the following steps:

step S10, weighing the raw materials for preparing the cleaning agent for the diesel fuel system according to the weight parts;

step S20, placing the soybean oil, the dispersant, the ferrocene, the combustion improver and the modified Y-shaped molecular sieve in parts by weight in a mixing kettle, heating to 50 ℃, stirring and mixing for 20 minutes, and placing for 12 hours to obtain a premix;

and S30, adding the cosolvent, the polyisobutene amine and the corrosion inhibitor in parts by weight into a mixing kettle, stirring and mixing for 2 hours at a constant temperature of 40 ℃, cooling to 30 ℃, adding the premix obtained in the step S20, and stirring and mixing uniformly to obtain the diesel fuel system cleaning agent.

Technical Field

The invention relates to the technical field of diesel additives, in particular to a cleaning agent for a diesel fuel system and a preparation method thereof.

Background

Diesel fuel has the advantages of high combustion efficiency, stable and reliable power performance and low carbon dioxide emission, and has become the main power fuel of large-scale equipment. The tail gas emission of the diesel engine is characterized in that the emission of hydrocarbon and carbon monoxide is less, the emission of NOx is about one tenth of that of a gasoline engine, the emission of NOx is equivalent to that of gasoline, but the emission of bituminous coal particles is dozens of times of that of the gasoline engine, people often see that black smoke at the tail part of the diesel engine rolls, the environment is seriously polluted, and the application of a diesel motor vehicle is also greatly limited. A large amount of carbon black particles exist in waste gas generated by diesel oil combustion, and can be deposited in a cylinder and block an oil nozzle of an engine oil sprayer, so that the combustibility of fuel is influenced, the oil consumption is increased, the engine is abraded, and the maintenance frequency of a locomotive is increased.

Chinese patent CN110846670A discloses a cleaning agent for a diesel fuel system and a preparation method thereof, wherein the cleaning agent is prepared from the following raw materials: n-methyl pyrrolidone, diethylene glycol butyl ether, xylene, a corrosion inhibitor, a combustion-supporting water flooding agent, polyether amine and a dispersing agent. However, the cleaning effect of the patent on carbon black in diesel engines is poor.

Chinese patent CN108998114A discloses an energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent, which comprises the following raw materials: methanol, cerium naphthenate, cetyl palmitate, polyethylene polyamine, glyceryl tristearate, N-methyl pyrrolidone, nano-loaded activated carbon, deionized water, a pour point depressant, a lubricant and an antioxidant stabilizer. However, the energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent prepared by the patent has certain corrosivity on a power system, and is not suitable for being continuously added.

Disclosure of Invention

Aiming at the problems, the invention provides a cleaning agent for a diesel fuel system and a preparation method thereof.

The technical scheme adopted by the invention for solving the problems is as follows: a cleaning agent for a diesel oil and fuel oil system comprises the following raw materials in parts by weight: 30 to 50 portions of cosolvent, 8 to 17 portions of soybean oil, 3.5 to 8.5 portions of dispersant, 7 to 16 portions of polyisobutene amine, 0.8 to 1.4 portions of ferrocene, 1.2 to 2.8 portions of corrosion inhibitor, 3.5 to 6.5 portions of combustion improver and 0.8 to 1.5 portions of modified Y-type molecular sieve.

Further, the cosolvent is obtained by mixing methanol, n-hexane and isobutanol according to a weight ratio of 2: 1.5-3.5: 3-6.

Further, the dispersing agent is obtained by mixing nonylphenol polyoxyethylene ether amine, linolic acid amine and polyisobutylene phenol amine in a weight ratio of 1: 1.2-2.4: 0.5-1.5.

Further, the corrosion inhibitor is prepared by mixing diethanolamine and methyl isobutyrate in a weight ratio of 10: 2-5.

Further, the combustion improver is selected from cerium naphthenate, barium naphthenate and active cobalt acetate in a weight ratio of 10: 2-3: 0.8-4.5.

Further, the preparation method of the modified Y-type molecular sieve comprises the following steps: mixing 100 parts of Y-type molecular sieve, 1.2-2.5 parts of cross-linking agent, 0.8-1.8 parts of activated alumina, 2-6 parts of activated carbon and 1.5-3.2 parts of sodium molybdate, stirring at a high speed of 4000-4500 rpm for 25-35 minutes, drying and crushing into 600-1000-mesh powder to obtain the modified Y-type molecular sieve.

The Y-type molecular sieve has uniform pore diameter, higher specific surface area and excellent adsorption performance, can adsorb suspended particles in diesel oil and smoke carbon generated by combustion, can improve the dispersibility of the Y-type molecular sieve in the diesel oil after modification treatment, and can adsorb more uniformly.

Further, the raw materials for preparing the cleaning agent for the diesel fuel system comprise the following components in parts by weight: 40 parts of cosolvent, 12 parts of soybean oil, 6 parts of dispersant, 12 parts of polyisobutene amine, 1.1 parts of ferrocene, 2 parts of corrosion inhibitor, 5 parts of combustion improver and 1.2 parts of modified Y-type molecular sieve.

The invention also aims to provide a preparation method of the cleaning agent for the diesel oil fuel system, which comprises the following steps:

step S10, weighing the raw materials for preparing the cleaning agent for the diesel fuel system according to the weight parts;

step S20, placing the soybean oil, the dispersant, the ferrocene, the combustion improver and the modified Y-shaped molecular sieve in parts by weight in a mixing kettle, heating to 50 ℃, stirring and mixing for 20 minutes, and placing for 12 hours to obtain a premix;

and S30, adding the cosolvent, the polyisobutylene amine and the corrosion inhibitor in parts by weight into a mixing kettle, stirring and mixing for 2 hours at a constant temperature of 40 ℃, cooling to 30 ℃, adding the premix obtained in the step S20, and stirring and mixing uniformly to obtain the diesel fuel system cleaning agent.

The invention has the advantages that:

(1) the cleaning agent for the diesel oil fuel system, prepared by the invention, can be used for removing carbon black deposited on an engine combustion system for a long time, repairing and protecting an engine cylinder body, prolonging the service life of an engine, improving the combustion performance of diesel oil, reducing the generation of carbon black, avoiding the blockage of an oil nozzle, reducing the discharge amount of particulate matters of a diesel locomotive and really realizing energy conservation and emission reduction;

(2) the additives in the cleaning agent for the diesel fuel system are matched for use, the corrosion inhibitor is matched with the dispersant for use, organic acid and phenolic substances in the components can quickly disperse and precipitate macromolecules and colloid, the oxidation of peroxide in the diesel is effectively inhibited, the content of insoluble substances is reduced, the corrosion inhibitor can strongly act with the surface of metal to form a protective film, the contact of corrosive substances and the metal is isolated to a certain extent, the corrosion of oil products on the fuel system is delayed, the abrasion rate of a nozzle is reduced, and the service life is prolonged; the combustion improver can reduce the activation energy of carbon-hydrogen bonds of fuel molecules, so that the fuel molecules can be combusted more fully, the discharge amount of carbon monoxide, nitrogen hydride and black smoke generated by insufficient combustion is reduced, and the combustion efficiency and the power of an engine are improved;

(3) the cleaning agent for the diesel fuel system prepared by the invention has good blending property with diesel, can greatly improve the combustibility of the diesel, reduce the discharge of harmful gas and particles, has obvious effect of removing carbon deposition, can not cause damage to the combustion system, has simple preparation method and easy operation of preparation process, and is suitable for large-scale production and popularization.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below.

Detailed Description

The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.