阅读说明：本技术 一种节能助燃汽车尾气柴油清洁剂及其制备方法 (Energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent and preparation method thereof ) 是由 张啸宇 吴鑫鑫 侯香 塔林夫 于 2020-05-27 设计创作，主要内容包括：本发明公开了一种节能助燃汽车尾气柴油清洁剂及其制备方法,制备节能助燃汽车尾气柴油清洁剂的原料按其重量份包括：异丁醇5份～12份、聚异丁烯15份～35份、催化氧化剂8份～18份、十二烷基苯磺酸钠1.2份～3.5份、助燃剂0.3份～0.8份、乙二醇苯醚0.5份～2.5份、亚磷酸二正丁酯4份～10份、改性膨润土0.5份～1.2份、航天煤油3份～6.5份、甲醇4份～8份。本发明制备节能助燃汽车尾气柴油清洁剂可清除积碳,延缓发动寿命,提升动力,有效节能,减少尾气排放,保护环境,并且制备方法简单,制备工艺易操作,经济实用性强,适合工业化生产。(The invention discloses an energy-saving combustion-supporting automobile exhaust diesel oil detergent and a preparation method thereof, wherein the energy-saving combustion-supporting automobile exhaust diesel oil detergent is prepared from the following raw materials in parts by weight: 5 to 12 portions of isobutanol, 15 to 35 portions of polyisobutylene, 8 to 18 portions of catalytic oxidant, 1.2 to 3.5 portions of sodium dodecyl benzene sulfonate, 0.3 to 0.8 portion of combustion improver, 0.5 to 2.5 portions of ethylene glycol phenyl ether, 4 to 10 portions of di-n-butyl phosphite, 0.5 to 1.2 portions of modified bentonite, 3 to 6.5 portions of space kerosene and 4 to 8 portions of methanol. The energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent prepared by the invention can remove carbon deposition, prolong the service life of the engine, improve power, effectively save energy, reduce exhaust emission and protect the environment, and the preparation method is simple, the preparation process is easy to operate, the economy and the practicability are strong, and the energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent is suitable for industrial production.)

1. The energy-saving combustion-supporting automobile exhaust diesel oil detergent is characterized in that the energy-saving combustion-supporting automobile exhaust diesel oil detergent is prepared from the following raw materials in parts by weight: 5 to 12 portions of isobutanol, 15 to 35 portions of polyisobutylene, 8 to 18 portions of catalytic oxidant, 1.2 to 3.5 portions of sodium dodecyl benzene sulfonate, 0.3 to 0.8 portion of combustion improver, 0.5 to 2.5 portions of ethylene glycol phenyl ether, 4 to 10 portions of di-n-butyl phosphite, 0.5 to 1.2 portions of modified bentonite, 3 to 6.5 portions of space kerosene and 4 to 8 portions of methanol.

2. The energy-saving combustion-supporting automobile exhaust diesel oil detergent as claimed in claim 1, wherein the molecular weight of the polyisobutylene is 800-1200, and the kinematic viscosity at 40 ℃ is 20mm²/s～35mm²Is between/s.

3. The energy-saving combustion-supporting automobile exhaust diesel oil detergent as claimed in claim 1, wherein the catalytic oxidant is obtained by mixing barium naphthenate and nitroether in a weight ratio of 2: 0.5-1.5.

4. The energy-saving combustion-supporting automobile exhaust diesel oil detergent as claimed in claim 1, wherein the combustion improver is obtained by mixing diisopropyl ether and ferrocene in a weight ratio of 2: 1-3.

5. The energy-saving combustion-supporting automobile exhaust diesel oil detergent as claimed in claim 1, wherein the preparation method of the modified bentonite comprises the following steps:

step i, soaking bentonite in hydrogen peroxide for 1-2 hours, washing the bentonite to be neutral by using deionized water, and drying the bentonite to obtain pretreated bentonite;

step ii, dispersing 10ml of butyl titanate in 60-100 ml of absolute ethyl alcohol, and stirring and mixing for 45 minutes to obtain a dispersion liquid;

step iii, mixing 50ml of absolute ethyl alcohol with 1.5-2 ml of glacial acetic acid, stirring and mixing for 15 minutes, then dropwise adding the mixture into the dispersion liquid obtained in the step ii, and reacting for 8-12 hours to obtain nano titanium dioxide gel;

and iv, adding the pretreated bentonite obtained in the step i into the nano titanium dioxide gel obtained in the step iii, stirring and mixing uniformly, and carrying out vacuum drying and ball milling to obtain the modified bentonite.

6. The energy-saving combustion-supporting automobile exhaust diesel oil detergent as claimed in claim 5, wherein the particle size of the modified bentonite is between 20nm and 50 nm.

7. The energy-saving combustion-supporting automobile exhaust diesel oil detergent according to claim 1, characterized in that the raw materials for preparing the energy-saving combustion-supporting automobile exhaust diesel oil detergent comprise, by weight: 8.5 parts of isobutanol, 25 parts of polyisobutylene, 12 parts of catalytic oxidant, 2.3 parts of sodium dodecyl benzene sulfonate, 0.5 part of combustion improver, 1.5 parts of ethylene glycol phenyl ether, 7 parts of di-n-butyl phosphite, 0.8 part of modified bentonite, 4.8 parts of space kerosene and 6 parts of methanol.

8. The energy-saving combustion-supporting automobile exhaust diesel oil detergent according to claim 1, characterized in that the raw materials for preparing the energy-saving combustion-supporting automobile exhaust diesel oil detergent comprise, by weight: 6 parts of isobutanol, 10 parts of polyisobutylene, 15 parts of catalytic oxidant, 3.0 parts of sodium dodecyl benzene sulfonate, 0.7 part of combustion improver, 0.6 part of ethylene glycol phenyl ether, 5 parts of di-n-butyl phosphite, 1.0 part of modified bentonite, 5.5 parts of space kerosene and 5 parts of methanol.

9. The preparation method of the energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent according to any one of claims 1 to 8 is characterized by comprising the following steps:

step S10, weighing the raw materials for preparing the energy-saving combustion-supporting automobile exhaust diesel oil detergent according to the parts by weight;

and step S20, adding the polyisobutylene and the space kerosene in parts by weight into a mixing kettle through a magnetic pump, adding the isobutanol, the catalytic oxidant, the sodium dodecyl benzene sulfonate, the combustion improver, the ethylene glycol phenyl ether, the di-n-butyl phosphite, the modified bentonite and the methanol in parts by weight, heating to 38-42 ℃, and stirring at a high speed for 45-60 minutes to obtain the energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent.

Technical Field

The invention relates to the technical field of diesel additives, in particular to an energy-saving combustion-supporting automobile exhaust diesel detergent and a preparation method thereof.

Background

Diesel oil is an important fuel, and has become a main power fuel for large-scale equipment due to its advantages of high power and low price. However, diesel oil is not easy to be fully combusted, a large amount of soot and NOx can be discharged, the soot can be deposited in the cylinder and blocks the oil nozzle, and the problems of poor combustibility, reduced power, increased oil consumption, increased abrasion loss of an engine and the like are caused. On the other hand, a great deal of soot and polycyclic aromatic hydrocarbon generated by combustion have great harm to the environment and human health.

At present, the research on the tail gas cleaning agent of the diesel vehicle is common in the market, but certain problems still exist: 1. the power of the engine is improved low, and the oil saving rate is not high; 2. the formula is not environment-friendly enough, and the elimination performance of the carbon smoke is not enough; 3. after the additive is added, the lubricating and wear-resisting properties of diesel oil are influenced, the service life of an engine is shortened, and the overhaul probability is increased.

Chinese patent CN109207212A discloses an environment-friendly combustion-supporting diesel additive and a preparation method thereof, wherein the diesel additive comprises the following raw materials: cetane number improver, ferrocene, rare earth metal salt, anticorrosive agent, vegetable oil and space kerosene. However, the diesel fuel additive prepared by the patent has poor elimination performance on soot particles.

Chinese patent CN108998114A discloses an energy-saving combustion-supporting automobile exhaust diesel oil detergent, which comprises the following raw materials of 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 poor combustion-supporting effect.

Disclosure of Invention

Aiming at the problems, the invention provides an energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent and a preparation method thereof.

The technical scheme adopted by the invention for solving the problems is as follows: an energy-saving combustion-supporting automobile exhaust diesel oil detergent is prepared from the following raw materials in parts by weight: 5 to 12 portions of isobutanol, 15 to 35 portions of polyisobutylene, 8 to 18 portions of catalytic oxidant, 1.2 to 3.5 portions of sodium dodecyl benzene sulfonate, 0.3 to 0.8 portion of combustion improver, 0.5 to 2.5 portions of ethylene glycol phenyl ether, 4 to 10 portions of di-n-butyl phosphite, 0.5 to 1.2 portions of modified bentonite, 3 to 6.5 portions of space kerosene and 4 to 8 portions of methanol.

Wherein, the di-n-butyl orthophosphate can improve the hot-pressing abrasion resistance; the ethylene glycol phenyl ether is an efficient film-forming auxiliary agent and can be used as a preservative of a cleaning agent; the modified bentonite is added into the cleaning agent to adsorb particles generated by diesel oil combustion, prevent polymerization of asphalt colloid in the diesel oil, prevent the diesel oil from discoloring for a long time and stabilize the quality of the diesel oil.

Furthermore, the molecular weight of the polyisobutene is 800-1200, and the kinematic viscosity at 40 ℃ is 20mm 2-35 mm 2/s.

Further, the catalytic oxidant is obtained by mixing barium naphthenate and nitric acid ether in a weight ratio of 2: 0.5-1.5.

Further, the combustion improver is obtained by mixing diisopropyl ether and ferrocene in a weight ratio of 2: 1-3.

The ferrocene and diisopropyl ether are compounded and added into the cleaning agent, so that the combustion-supporting, smoke-eliminating and anti-explosion capabilities of the ferrocene and diisopropyl ether can be fully exerted, a fuel oil molecular chain is improved, the combustion is more sufficient, the explosive force is increased, the stress of a piston is increased, and the dynamic property of an engine is further obviously improved.

Further, the preparation method of the modified bentonite comprises the following steps:

step i, soaking bentonite in hydrogen peroxide for 1-2 hours, washing the bentonite to be neutral by using deionized water, and drying the bentonite to obtain pretreated bentonite;

step ii, dispersing 10ml of butyl titanate in 60-100 ml of absolute ethyl alcohol, and stirring and mixing for 45 minutes to obtain a dispersion liquid;

step iii, mixing 50ml of absolute ethyl alcohol with 1.5-2 ml of glacial acetic acid, stirring and mixing for 15 minutes, then dropwise adding the mixture into the dispersion liquid obtained in the step ii, and reacting for 8-12 hours to obtain nano titanium dioxide gel;

and iv, adding the pretreated bentonite obtained in the step i into the nano titanium dioxide gel obtained in the step iii, stirring and mixing uniformly, and carrying out vacuum drying and ball milling to obtain the modified bentonite.

Further, the particle size of the modified bentonite is between 20nm and 50 nm.

Further, the energy-saving combustion-supporting automobile exhaust diesel oil detergent is prepared from the following raw materials in parts by weight: 8.5 parts of isobutanol, 25 parts of polyisobutylene, 12 parts of catalytic oxidant, 2.3 parts of sodium dodecyl benzene sulfonate, 0.5 part of combustion improver, 1.5 parts of ethylene glycol phenyl ether, 7 parts of di-n-butyl phosphite, 0.8 part of modified bentonite, 4.8 parts of space kerosene and 6 parts of methanol.

Further, the energy-saving combustion-supporting automobile exhaust diesel oil detergent is prepared from the following raw materials in parts by weight: 6 parts of isobutanol, 10 parts of polyisobutylene, 15 parts of catalytic oxidant, 3.0 parts of sodium dodecyl benzene sulfonate, 0.7 part of combustion improver, 0.6 part of ethylene glycol phenyl ether, 5 parts of di-n-butyl phosphite, 1.0 part of modified bentonite, 5.5 parts of space kerosene and 5 parts of methanol.

The invention also aims to provide a preparation method of the energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent, which comprises the following steps:

step S10, weighing the raw materials for preparing the energy-saving combustion-supporting automobile exhaust diesel oil detergent according to the parts by weight;

and step S20, adding the polyisobutylene and the space kerosene in parts by weight into a mixing kettle through a magnetic pump, adding the isobutanol, the catalytic oxidant, the sodium dodecyl benzene sulfonate, the combustion improver, the ethylene glycol phenyl ether, the di-n-butyl phosphite, the modified bentonite and the methanol in parts by weight, heating to 38-42 ℃, and stirring at a high speed for 45-60 minutes to obtain the energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent.

The invention has the advantages that:

(1) the energy-saving combustion-supporting automobile tail gas diesel oil detergent prepared by the invention has good miscibility with diesel oil, the bentonite modified by the nano titanium dioxide is added, and the high-dispersion nano titanium dioxide endows the bentonite with excellent dispersibility, so that the bentonite can be uniformly dispersed in the diesel oil to adsorb particles generated by combustion, the adsorption performance is excellent, and the energy-saving combustion-supporting automobile tail gas diesel oil detergent plays an important role in cleaning the diesel oil;

(2) the energy-saving combustion-supporting automobile tail gas diesel oil cleaning agent prepared by the invention is added with the catalytic oxidant, the combustion improver and other auxiliary agents to improve the combustion performance of the diesel oil, so that the combustion is more complete, the heat value of oil fuel is improved, and the oil consumption is reduced;

(3) the energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent prepared by the invention can remove carbon deposition, prolong the service life of the engine, improve power, effectively save energy, reduce exhaust emission and protect the environment, and the preparation method is simple, the preparation process is easy to operate, the economy and the practicability are strong, and the energy-saving combustion-supporting automobile exhaust diesel oil cleaning agent is suitable for industrial production.

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.