CN102703140A - Fuel oil storage stabilizer with good compatibility and preparation method thereof - Google Patents

Abstract

The invention relates to the technical field of fuel thermal stabilizer, in particular to a fuel oil storage stabilizer with good compatibility and a preparation method thereof. The stabilizer comprises the following components by weight percentage: 0.1 to 2 percent of rare earth oxide, 10 to 40 percent of fuel oil synergist, 1 to 15 percent of rare earth stearate, 1 to 15 percent of rare earth naphthenates, 1 to 15 percent of di-tert-butylphenol, 1 to 15 percent of butylated hydroxytoluene, 1 to 30 percent of dispersant, and the balance of hydrogenated white oil, wherein the rare earth oxide adopts one or more lanthanide series metal oxide with the particle diameter being 50 to 150 nanometers. The stabilizer adopts the multi-coordinate linkage properly of rear earth, the surface activity of nano-powder and the unique micro-scale and macro-scale characteristics of the nano-powder, thereby greatly improving the stability of fuel oil, and simultaneously greatly enhancing the compatibility of other addition agent in the fuel oil, and being widely applied to the preparation of various fuel oil.

Description

A kind of have good compatibleness fuel oil shelf-stable agent and a preparation method

[technical field]

The present invention relates to fuel heat stablizer technical field, a kind of specifically have good compatibleness fuel oil shelf-stable agent and preparation method thereof.

[background technology]

In recent years; The fuel oil stablizer is widely used in the fuel oil, has improved the antioxygen property and the thermal oxidation stability of fuel oil, but the coupling and the compatibility of other auxiliary agent in itself and the fuel oil are effectively improved; Cause the decline of fuel performance easily, even chemical precipitation takes place.

A kind of proportioning and composition of nano fuel additive agent are disclosed like domestic patent CN1317372C; This patent is and the immediate technology of present technique; This invention has well solved the lubricity problem of rare earth metal nano particle in fuel oil, but still has much room for improvement for compatibleness problem, the stability problem of stablizer.

[summary of the invention]

The objective of the invention is to solve above-mentioned deficiency of the prior art, a kind of prescription and preparation method with the agent of good compatibleness fuel oil shelf-stable is provided.

For realizing a kind of prescription of above-mentioned purpose design with the agent of good compatibleness fuel oil shelf-stable; Said stablizer is made up of following composition and weight percent: rare earth oxide 0.1 ~ 2%, synergist for fuel oil 10 ~ 40%, rare-earth stearate 1 ~ 15%, naphthenic acid rare earth 1 ~ 15%, di-tert-butylphenol 1 ~ 15%, ditertbutylparacresol 1 ~ 15%, dispersion agent 1 ~ 30%, all the other are the hydrogenation white oil, and described rare earth oxide is one or more in the lanthanide metal oxide of particle diameter between 50 ~ 150 nanometers.

Described dispersion agent is one or more in calcium naphthenate, sulfur phosphorization polyisobutylene titanate salt, the mono alkenyl succimide.

Described synergist for fuel oil is made up of according to the following weight ratio that accounts for synergist for fuel oil following composition, and the metal oil dissolubility rare earth compound of 5% calcium and cerium and 95% white oil are formed.

The ratio that described stablizer is added into fuel oil is 1:5000 ~ 1:2000.

The method of the above-mentioned formulation fuel oil of a kind of usefulness shelf-stable agent is characterized in that described method is made up of following steps,

A. the hydrogenation white oil is added in the heating container, when being heated to 60-80 ℃ dispersion agent is added in the hydrogenation white oil, stop heating, stir until uniform distribution,

When treating that b. hydrogenation white oil temperature is reduced to room temperature 15-30 ℃, rare-earth stearate and naphthenic acid rare earth are added respectively in the hydrogenation white oil, stir until uniform distribution,

C. above-mentioned mixed solution is heated to 60-80 ℃, keeps temperature, add rare earth metal powder and RE oxide powder respectively, stir until uniform distribution,

D. be heated to 110-130 ℃, add di-tert-butylphenol and ditertbutylparacresol, circulation is stirred until uniform distribution, keeps this temperature to stop heating after 2 hours,

Add synergist for fuel oil and hydrogenation white oil when e. waiting to naturally cool to 60-80 ℃, circulation is stirred until uniform distribution, static 24 hours.

The present invention utilizes the polygamy position bonding performance of rare earth, surfactivity and the distinctive microcosmic of nano-powder and the macro-scale characteristics of nano-powder; When improving fuel oil stability greatly; Strengthen greatly with fuel oil in the compatibility of other auxiliary agent, can be widely used in the modulation of all kinds of fuel oils.

Auxiliary agents such as the rare-earth stearate 1 ~ 15% that increases in the present invention, naphthenic acid rare earth 1 ~ 15%, ditertbutylparacresol 1 ~ 15%; These auxiliary agents still are not used for antioxygen with anti-old; Under the preparation method and proportioning in the present technique scheme, can also further reach the effect that improves compatibleness and fuel oil stability.Yet, only use in the prior art these auxiliary agents can cause with oil product in the chemical reaction of other additive, cause deposition even failure phenomenon.

[embodiment]

The used device of the present invention is very clearly concerning this professional people.

Component of the present invention and weight percent are following:

RE oxide powder 0.1-2% (one or more in the lanthanide metal oxide of granularity between the 50-150 nanometer);

Synergist for fuel oil 10-40% (the JM-1 type synergist for fuel oil that Shanghai energy collecting chemical industry ltd produces; Because of its component is metal oil dissolubility rare earth compound and the mixture that 95% white oil is formed that accounts for calcium and the cerium of synergist for fuel oil about 5%, booster action is played in the dispersion of rare earth nano powder);

Rare-earth stearate 1-15%;

Naphthenic acid rare earth 1-15%;

Di-tert-butylphenol 1-15%;

Ditertbutylparacresol 1-15%;

Dispersion agent 1-30% (in high base number calcium naphthenate, sulfur phosphorization polyisobutylene titanate salt, the mono alkenyl succimide one or more);

Surplus: hydrogenation white oil.

Three, preparation process

1. the hydrogenation white oil is added in the heating container, when being heated to 60-80 degree centigrade dispersion agent is added in the hydrogenation white oil, stop heating, stir until uniform distribution through the inside gearing pump circulation;

2. when treating that hydrogenation white oil temperature is reduced to room temperature 15-30 degree centigrade, rare-earth stearate and naphthenic acid rare earth are added respectively in the hydrogenation white oil, and stir until uniform distribution through the inside gearing pump circulation;

3. above-mentioned mixed solution is heated to 60-80 degree centigrade, keeps temperature, add rare earth metal powder and RE oxide powder respectively, stir until uniform distribution through the inside gearing pump circulation;

4. be heated to 110-130 degree centigrade, add di-tert-butylphenol and ditertbutylparacresol, stir until uniform distribution, keep this temperature to stop heating after two hours through the inside gearing pump circulation;

5. add synergist for fuel oil and hydrogenation white oil when waiting to naturally cool to 60-80 degree centigrade, stir until uniform distribution static 24 hours through the inside gearing pump circulation.

With fuel oil A (No. 0 diesel oil), fuel oil B (carbon nine carbon, ten solvents and No. 0 diesel oil blending ratio are 1:5) is example; Product of the present invention is joined in the fuel oil by 1:5000 (product 1) and 1:2000 (product 2) adding proportion respectively; And mix, place a week after, experimental result such as following table are said:

Can find out that after having added this product, the precipitation capacity of fuel oil significantly reduces, especially for fuel oil B (C ₉~ C ₁₀Solvent and No. 0 diesel oil composite fuels), its precipitation capacity drops to 2.9 and 1.7 from 8.0, and effect is remarkable.

Claims (5)

1. prescription with the agent of good compatibleness fuel oil shelf-stable; It is characterized in that said stablizer is made up of following composition and weight percent: rare earth oxide 0.1 ~ 2%, synergist for fuel oil 10 ~ 40%, rare-earth stearate 1 ~ 15%, naphthenic acid rare earth 1 ~ 15%, di-tert-butylphenol 1 ~ 15%, ditertbutylparacresol 1 ~ 15%, dispersion agent 1 ~ 30%, all the other are the hydrogenation white oil, and described rare earth oxide is one or more in the lanthanide metal oxide of particle diameter between 50 ~ 150 nanometers.

2. like power 1 described a kind of fuel oil shelf-stable agent, it is characterized in that described dispersion agent is one or more in calcium naphthenate, sulfur phosphorization polyisobutylene titanate salt, the mono alkenyl succimide with good compatibleness.

3. like power 1 described a kind of fuel oil shelf-stable agent with good compatibleness; It is characterized in that described synergist for fuel oil is made up of according to the following weight ratio that accounts for synergist for fuel oil following composition, the metal oil dissolubility rare earth compound of 5% calcium and cerium and 95% white oil are formed.

4. as power 1 described a kind of fuel oil shelf-stable agent, it is characterized in that the ratio that described stablizer is added into fuel oil is 1:5000 ~ 1:2000 with good compatibleness.

5. the method with power 1 formulation fuel oil shelf-stable agent is characterized in that described method is made up of following steps,

A. the hydrogenation white oil is added in the heating container, when being heated to 60-80 ℃ dispersion agent is added in the hydrogenation white oil, stop heating, stir until uniform distribution,

When treating that b. hydrogenation white oil temperature is reduced to room temperature 15-30 ℃, rare-earth stearate and naphthenic acid rare earth are added respectively in the hydrogenation white oil, stir until uniform distribution,

C. above-mentioned mixed solution is heated to 60-80 ℃, keeps temperature, add rare earth metal powder and RE oxide powder respectively, stir until uniform distribution,

D. be heated to 110-130 ℃, add di-tert-butylphenol and ditertbutylparacresol, circulation is stirred until uniform distribution, keeps this temperature to stop heating after 2 hours,

Add synergist for fuel oil and hydrogenation white oil when e. waiting to naturally cool to 60-80 ℃, circulation is stirred until uniform distribution, static 24 hours.