CN104164260A - A kind of anti-water composite additive for vehicle fuel oil - Google Patents

Abstract

The invention provides a water-resistant composite additive for vehicle fuel oil, which comprises, by weight, 40-70% of mutual solvent, 20-40% of antioxidant preservative, 2-6% of bactericide and 8-14% of auxiliary agent; the mutual solvent consists of 10-30% of methyl tert-butyl ether, 10-15% of tert-butyl acetate, 15-20% of dimethyl carbonate, 40-50% of a mixture of C3-C6 higher alcohols and 5% of N-ethyl pyrrolidone; the antioxidant preservative is composed of a mixture of 30-50% of 2, 6-di-tert-butylphenol, 10-15% of N, N' -di-sec-butyl-p-phenylenediamine, 20-30% of T1201, 15-20% of methyl benzotriazole, 5% of ethoxylated alkylphenol and oil-soluble imidazoline according to the weight ratio of 6: 4; the bactericide consists of 40-60% of a solution containing dioxy alkyl borane, 15-30% of a solution containing N-benzylidene methylamine, 10-15% of polyethylene glycol borate and 15% of isoquinazolinone; the auxiliary agent consists of toluene, aviation kerosene, dioctyl sebacate and cyclohexane in the weight ratio of 3: 2: 1: 4. The water-resistant composite additive can effectively solve the problems of phase separation, severe corrosion and abrasion to an engine and the like when the vehicle fuel oil absorbs moisture in the processes of production, storage and transportation.

Description

A kind of anti-water composite additive for vehicle fuel oil

technical field

The invention relates to a fuel additive, in particular to a water-resistant composite additive for vehicle fuel oil and its application.

Background technique

Based on the requirements of optimizing energy structure and environmental protection, promoting and using motor gasoline, ethanol gasoline, and methanol gasoline at the same time is one of the important measures to alleviate my country's energy "bottleneck" and realize energy diversification and sustainable development strategic planning.

Moisture in automotive fuel oil refers to the total amount of water in various phases such as free water, emulsified water, and dissolved water in the oil. According to the national standard GB 17930-2011/XG1-2012 "Automotive Gasoline" Phase IV standard moisture (mass fraction) technical requirements are none; GB 18351-2010 "Automotive Ethanol Gasoline (E10)" standard moisture (mass fraction ) technical requirement is not more than 0.2%; GB/T 23799-2009 "Methanol Gasoline for Vehicles (M85)" technical requirement for moisture (mass fraction) is not more than 0.5%. The purpose of limiting the moisture content is to avoid and reduce the phase separation that is prone to occur when the fuel oil absorbs water during production, storage and transportation, corrosive organic acids produced by the growth of bacterial mass, and aldehydes or acids produced after combustion. The engine produces relatively serious corrosion and wear effects, and the corrosion and wear problems caused by the quality change of lubricating oil.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned technical problems and provide a water-resistant composite additive for vehicle fuel oil, which can effectively solve the phase separation that occurs when the vehicle fuel oil absorbs water during production, storage and transportation, and cause serious damage to the engine. Corrosion and wear and other issues.

In order to achieve the above object, the technical scheme adopted in the present invention is:

Provide a kind of vehicle fuel oil anti-water composite additive, its component comprises by weight percentage:

Mutual solvent: 40-70%;

Antioxidant preservatives: 20-40%;

Fungicide: 2-6%;

Additives: 8-14%.

The mutual solvent, by weight percentage, consists of 10-30% methyl tert-butyl ether, 10-15% tert-butyl acetate, 15-20% dimethyl carbonate, 40-50% C3 A mixture of ~C6 higher alcohols and 5% N-ethylpyrrolidone;

The anti-oxidant preservative, by weight percentage, consists of 30-50% of 2,6-di-tert-butylphenol, 10-15% of N,N'-di-sec-butyl-p-phenylenediamine, 20-50% A mixture of 30% T1201, 15-20% tolyltriazole, 5% ethoxylated alkylphenol and oil-soluble imidazoline in a weight ratio of 6:4;

The bactericide, by weight percentage, consists of 40-60% solution containing dioxyalkylborane, 15-30% solution containing N-benzylidenemethylamine, 10-15% polyethylene glycol Borate and 15% isothiazolinone composition;

The auxiliary agent is composed of toluene, aviation kerosene, dioctyl sebacate, and cyclohexane in a weight ratio of 3:2:1:4.

In the preferred water-resistant composite additive of the present invention, the solution containing dioxyalkylborane is a mixed solution prepared by 15% dioxyalkylborane and 85% naphtha by weight percentage.

In the preferred water-resistant composite additive of the present invention, the solution containing N-benzylidene methylamine is a mixed solution prepared by 50% N-benzylidene methylamine and 50% n-butanol by weight percentage.

A kind of most preferred vehicle fuel oil anti-water composite additive of the present invention, by weight percentage, is made up of 40% mutual solvent, 40% anti-oxidation preservative, 6% bactericide and 14% auxiliary agent; Wherein , the mutual solvent is composed of 10% methyl tert-butyl ether, 15% tert-butyl acetate, 20% dimethyl carbonate, 50% mixture of C3～C6 higher alcohols and 5% N-ethyl Base pyrrolidone composition; the antioxidant preservative consists of 30% of 2,6-di-tert-butylphenol, 15% of N,N'-di-sec-butyl-p-phenylenediamine, 30% of T1201, 20% of Tolyltriazole, and 5% ethoxylated alkylphenol and oil-soluble imidazoline are composed of a mixture of 6:4 by weight; the bactericide is composed of 40% 15% dioxyalkylene Borane mixed with 85% naphtha, 30% mixed with 50% N-benzylidene methylamine and 50% n-butanol, 15% polyethylene glycol borate and 15% isoxazoline Ketone composition; Described auxiliary agent is made of toluene, aviation kerosene, dioctyl sebacate and hexanaphthene with the weight ratio of 3:2:1:4.

Another most preferred water-resistant composite additive for vehicle fuel oil of the present invention is composed of 70% mutual solvent, 20% anti-oxidant preservative, 2% bactericide and 8% auxiliary agent by weight percentage; Wherein, the mutual solvent is composed of 30% methyl tert-butyl ether, 10% tert-butyl acetate, 15% dimethyl carbonate, 40% mixture of C3～C6 higher alcohols and 5% N- Ethyl pyrrolidone is composed; the anti-oxidant preservative consists of 50% 2,6-di-tert-butylphenol, 10% N,N'-di-sec-butyl-p-phenylenediamine, 20% T1201, 15% Tolyltriazole, and 5% ethoxylated alkylphenol and oil-soluble imidazoline are composed of a mixture of 6:4 by weight; the fungicide is composed of 60% 15% dioxygen Hydrocarbyl borane mixed with 85% naphtha, 15% mixed with 50% N-benzylidene methylamine and 50% n-butanol, 10% polyethylene glycol borate and 15% isoxazole Linone composition; Described auxiliary agent is made of toluene, aviation kerosene, dioctyl sebacate and cyclohexane with the weight ratio of 3:2:1:4.

Another most preferred water-resistant composite additive for vehicle fuel oil of the present invention is composed of 55% mutual solvent, 30% anti-oxidation preservative, 4% bactericide and 11% auxiliary agent by weight percentage; Wherein, the mutual solvent is composed of 20% methyl tert-butyl ether, 12% tert-butyl acetate, 17% dimethyl carbonate, 46% mixture of C3～C6 higher alcohols and 5% N- Ethylpyrrolidone composition; the antioxidant preservative consists of 40% 2,6-di-tert-butylphenol, 13% N,N'-di-sec-butyl-p-phenylenediamine, 26% T1201, 16% The mixture of tolyltriazole and 5% ethoxylated alkylphenol and oil-soluble imidazoline in a weight ratio of 6:4; the fungicide consists of 52% 15% dioxygen Hydrocarbyl borane mixed with 85% naphtha, 21% mixed with 50% N-benzylidene methylamine and 50% n-butanol, 12% polyethylene glycol borate and 15% isoxazole Linone composition; Described auxiliary agent is made of toluene, aviation kerosene, dioctyl sebacate and cyclohexane with the weight ratio of 3:2:1:4.

The water-resistant composite additive for motor fuel oil of the present invention can be prepared by simply mixing the components according to the stated ratio.

The present invention also provides the application of the anti-water composite additive for vehicle fuel oil in improving the performance of vehicle fuel oil, and the vehicle fuel oil includes vehicle unleaded gasoline, ethanol gasoline or methanol gasoline.

Compared with the prior art, the anti-water composite additive of the present invention has the following beneficial effects:

(1) The mechanism of action of the anti-water composite additive of the present invention is: effectively rejecting moisture to exist in the oil in a free phase state, but in the form of microemulsified water and dissolved water phase state, destroying oxidation conditions, anti-oxidation, anti-corrosion, anti-mildew and sterilization . The outstanding advantage is that it forms a stable central flame combustion state, and the micro-emulsified gasoline water droplet diameter is less than 0.01 micron, which is a thermodynamically stable system, so that the "micro-explosion" effect makes the combustion process more complete.

(2) The composite additive of the present invention has the characteristics of large temperature resistance range, broad-spectrum antibacterial property, long-term effect, safety and no secondary pollution to oil products.

(3) The composite additive of the present invention has a wide range of compatible components, low price, simple compounding process, mature technology, and no three wastes in production.

(4) The composite additive of the present invention is suitable for commercially available unleaded gasoline, ethanol gasoline, and methanol gasoline for vehicles, and has safe, stable, and efficient performance and meets relevant national standards.

Detailed ways

Embodiments of the present invention are further described in detail below.

Embodiment 1,

A kind of vehicle fuel oil anti-water compound additive, by weight percentage, it is made up of following components:

Mutual solvent: 40%;

Antioxidant preservatives: 40%;

Fungicide: 6%;

Additives: 14%.

Among them mutual solvent, its component is by weight percentage,

MTBE: 10%;

Tert-butyl acetate: 15%;

Dimethyl carbonate: 20%;

C3～C6 higher alcohol mixture: 50%;

N-ethylpyrrolidone: 5%;

Antioxidant preservative, its composition is by weight percentage,

2,6-di-tert-butylphenol: 30%;

N,N'-di-sec-butyl-p-phenylenediamine: 15%;

T1201: 30%;

Tolyltriazole: 20%;

A mixture of 6 parts of ethoxylated alkylphenol and 4 parts of oil-soluble imidazoline: 5%;

Bactericide, its composition is by weight percentage,

Mixture of 15% dioxyalkylborane and 85% naphtha: 40%;

Mixture of 50% N-benzylidene methylamine and 50% n-butanol: 30%;

Polyethylene glycol borate: 15%;

Isoxazolinone: 15%;

Auxiliary agent: toluene: aviation kerosene: dioctyl sebacate: cyclohexane = 3:2:1:4 weight ratio composition.

The performance test results of the obtained anti-water composite additive are shown in Table 1 below:

Table 1. The anti-water composite additive technical index of embodiment 1

Embodiment 2,

A kind of vehicle fuel oil anti-water compound additive, by weight percentage, it is made up of following components:

Mutual solvent: 70%;

Antioxidant preservatives: 20%;

Fungicide: 2%;

Auxiliary: 8%;

Among them mutual solvent, its component is by weight percentage,

MTBE: 30%;

Tert-butyl acetate: 10%;

Dimethyl carbonate: 15%;

C3～C6 higher alcohol mixture: 40%;

N-ethylpyrrolidone: 5%;

Wherein antioxidant preservative, its component is by weight percentage,

2,6-di-tert-butylphenol: 50%;

N,N'-di-sec-butyl-p-phenylenediamine: 10%;

T1201: 20%;

Tolyltriazole: 15%;

A mixture of 6 parts of ethoxylated alkylphenol and 4 parts of oil-soluble imidazoline: 5%;

Wherein the bactericide, its component by weight percentage,

Mixture of 15% dioxyalkylborane and 85% naphtha: 60%;

Mixture of 50% N-benzylidene methylamine and 50% n-butanol: 15%;

Polyethylene glycol borate: 10%;

Isoxazolinone: 15%;

Auxiliary agent: toluene: aviation kerosene: dioctyl sebacate: cyclohexane = 3:2:1:4 weight ratio composition.

The obtained water-resistant composite additive performance test results are shown in Table 2 below:

Table 2. The anti-water composite additive technical index of embodiment 2

Embodiment 3,

A kind of vehicle fuel oil anti-water compound additive, by weight percentage, it is made up of following components:

Mutual solvent: 55%;

Antioxidant preservatives: 30%;

Fungicide: 4%;

Additives: 11%;

Among them mutual solvent, its component is by weight percentage,

MTBE: 20%;

Tert-butyl acetate: 12%;

Dimethyl carbonate: 17%;

C3～C6 higher alcohol mixture: 46%;

N-ethylpyrrolidone: 5%;

Wherein antioxidant preservative, its component is by weight percentage,

2,6-di-tert-butylphenol: 40%;

N,N'-di-sec-butyl-p-phenylenediamine: 13%;

T1201: 26%;

Tolyltriazole: 16%;

A mixture of 6 parts of ethoxylated alkylphenol and 4 parts of oil-soluble imidazoline: 5%;

Wherein the bactericide, its component by weight percentage,

Mixture of 15% dioxyalkylborane and 85% naphtha: 52%;

Mixture of 50% N-benzylidene methylamine and 50% n-butanol: 21%;

Polyethylene glycol borate: 12%;

Isoxazolinone: 15%;

Auxiliary agent: toluene: aviation kerosene: dioctyl sebacate: cyclohexane = 3:2:1:4 weight ratio composition.

The performance test results of the water-resistant composite additive are shown in Table 3 below:

Table 3. The anti-water composite additive technical index of embodiment 3

Effect test

The anti-water composite additive of the present invention can comprehensively improve the performance of vehicle fuel oil. Taking the anti-water composite additive of Example 1 of the present invention as an example to test, it has several aspects of sterilization, fuel oil stability, and solvent washing colloid. The test results are shown in Table 4-8.

Table 4. The bactericidal effect of the anti-water composite additive of the embodiment of the present invention 1 in gasoline

Note: Gasoline contains 0.1% water.

Table 5. Application of the motor gasoline stability test data of the present invention's anti-water composite additive

Table 6. Application of the vehicle methanol gasoline stability test data of the present invention's anti-water composite additive

Table 7. Apply the test data of the motor gasoline solvent washing colloid of the present invention

Table 8. Application of the vehicle methanol gasoline solvent washing colloid test data of the present invention

Claims (7)

1. a kind of vehicle fuel oil anti-water composite additive is characterized in that, its component comprises by weight percentage: Mutual solvent: 40-70%; Antioxidant preservatives: 20-40%; Fungicide: 2-6%; Additives: 8-14%. The mutual solvent, by weight percentage, consists of 10-30% methyl tert-butyl ether, 10-15% tert-butyl acetate, 15-20% dimethyl carbonate, 40-50% C3 A mixture of ~C6 higher alcohols and 5% N-ethylpyrrolidone; The anti-oxidant preservative, by weight percentage, consists of 30-50% of 2,6-di-tert-butylphenol, 10-15% of N,N'-di-sec-butyl-p-phenylenediamine, 20-50% A mixture of 30% T1201, 15-20% tolyltriazole, 5% ethoxylated alkylphenol and oil-soluble imidazoline in a weight ratio of 6:4; The bactericide, by weight percentage, consists of 40-60% solution containing dioxyalkylborane, 15-30% solution containing N-benzylidenemethylamine, 10-15% polyethylene glycol Borate and 15% isothiazolinone composition; The auxiliary agent is composed of toluene, aviation kerosene, dioctyl sebacate, and cyclohexane in a weight ratio of 3:2:1:4. 2. The anti-water composite additive according to claim 1, characterized in that: the solution containing dioxyalkylborane, by weight percentage, is 15% dioxyalkylborane and 85% naphtha prepared mixed solution. 3. The anti-water composite additive according to claim 1, characterized in that: the solution containing N-benzylidene methylamine is, by weight percentage, 50% N-benzylidene methylamine and 50% n-benzylidene Mixed solution prepared in butanol. 4. The anti-water composite additive according to claim 1, characterized in that: by weight percentage, it consists of 40% mutual solvent, 40% anti-oxidant preservative, 6% bactericide and 14% auxiliary agent ; Wherein, described mutual solvent is by the mixture of 10% methyl tert-butyl ether, 15% tert-butyl acetate, 20% dimethyl carbonate, 50% C3～C6 higher alcohol and 5% N - Composition of ethylpyrrolidone; the antioxidant preservative consists of 30% 2,6-di-tert-butylphenol, 15% N,N'-di-sec-butyl-p-phenylenediamine, 30% T1201, 20 % of benzotriazole, and 5% of ethoxylated alkylphenol and oil-soluble imidazoline in a 6:4 weight ratio; the fungicide consists of 40% of 15% di Oxyalkylborane mixed with 85% naphtha, 30% mixed with 50% N-benzylidene methylamine and 50% n-butanol, 15% polyethylene glycol borate and 15% isosulfur Composition of oxazolinone; Described auxiliary agent is made of toluene, aviation kerosene, dioctyl sebacate and cyclohexane with the weight ratio of 3:2:1:4. 5. The anti-water composite additive according to claim 1, characterized in that: by weight percentage, it consists of 70% mutual solvent, 20% anti-oxidant preservative, 2% bactericide and 8% auxiliary agent Wherein, described mutual solvent is by the mixture of 30% methyl tert-butyl ether, 10% tert-butyl acetate, 15% dimethyl carbonate, 40% C3～C6 higher alcohol and 5% N - Composition of ethylpyrrolidone; the antioxidant preservative consists of 50% 2,6-di-tert-butylphenol, 10% N,N'-di-sec-butyl-p-phenylenediamine, 20% T1201, 15 % of benzotriazole, and 5% of ethoxylated alkylphenol and oil-soluble imidazoline in a 6:4 weight ratio; the fungicide consists of 60% of 15% di Oxyalkylborane mixed with 85% naphtha, 15% mixed with 50% N-benzylidene methylamine and 50% n-butanol, 10% polyethylene glycol borate and 15% isosulfur Composition of oxazolinone; Described auxiliary agent is made of toluene, aviation kerosene, dioctyl sebacate and cyclohexane with the weight ratio of 3:2:1:4. 6. The anti-water composite additive according to claim 1, characterized in that: by weight percentage, it consists of 55% mutual solvent, 30% anti-oxidant preservative, 4% bactericide and 11% auxiliary agent Wherein, described mutual solvent is by the mixture of 20% methyl tert-butyl ether, 12% tert-butyl acetate, 17% dimethyl carbonate, 46% C3～C6 higher alcohol and 5% N - Composition of ethylpyrrolidone; the antioxidant preservative consists of 40% of 2,6-di-tert-butylphenol, 13% of N,N'-di-sec-butyl-p-phenylenediamine, 26% of T1201, 16 % tolutriazole, and 5% ethoxylated alkylphenol and oil-soluble imidazoline in a 6:4 weight ratio; the fungicide consists of 52% 15% di Oxyalkylborane mixed with 85% naphtha, 21% mixed with 50% N-benzylidene methylamine and 50% n-butanol, 12% polyethylene glycol borate and 15% isosulfur Composition of oxazolinone; Described auxiliary agent is made of toluene, aviation kerosene, dioctyl sebacate and cyclohexane with the weight ratio of 3:2:1:4. 7. the application of any kind of vehicle fuel oil water-resistant compound additive described in claim 1-6 in improving the performance of vehicle fuel oil, it is characterized in that: described vehicle fuel oil comprises vehicle unleaded gasoline, Ethanol gasoline or methanol gasoline.