CN103952195B - A kind of Vehicular methanol petrol composite additive and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of Vehicular methanol petrol composite additive and preparation method thereof, belong to new forms of energy chemical field.It is characterized in that: the component formed by mass percentage, sulfur corrosion inhibiter 1 ~ 15%, prevent fuel oxidation products from causing inhibiter 4 ~ 10%, fuel oiliness improver 5 ~ 30%, detergent-dispersant additive 0.5 ~ 5%, the solubility promoter 70 ~ 85% of corrosion; The alcohol ate that this additive mixes has advantage that is little to the corrosion of automotive oil tank, oil pump, oil meter and oil supply line, that reduce firing system wearing and tearing; strengthen the anti-chance water stratification ability of methanol fuel; and have the advantages that to ensure engine and exhaust treatment system reliability service, noresidue, automotive fuel oil system is comprehensively protected.

Description

A kind of Vehicular methanol petrol composite additive and preparation method thereof

Technical field

The present invention relates to new forms of energy chemical technology field, be specifically related to a kind of Vehicular methanol petrol composite additive and preparation method thereof.

Background technology

Vehicular methanol petrol is a kind of novel vehicle fuel that development in recent years is got up, methanol fuel, as a kind ofly adjusting traditional energy structure, promoting the novel substitute energy of recycling economy development, is take " reduce energy consumption, pollution abatement, low-carbon (LC) utilize, mixing development " as the typical low-carbon energy of feature.Methanol gasoline, with high-performances such as its environment-friendly type are good, cost performance is high, resource is secure, becomes the first-selected product of oil replacement.Actively pushing forward Methanol Fuel Industrialization is exploitation low-carbon energy, one of most important behave of developing a circular economy.

Vehicular methanol petrol, particularly the main component of Vehicular methanol petrol is methyl alcohol at high proportion.Compared with conventional gasoline, the advantage of methanol gasoline is that rich raw material sources, octane value are high and the carcinogenic substance of burning and exhausting (such as, acetaldehyde, benzene and 1,3 divinyl) is less.But in use also there is larger drawback in methanol fuel.One, comparatively large to corrosion of metal, cause corrosion to engine fuel system; Its two, the physical properties of Aalcohols fuel itself is drier and more astringent than conventional gasoline, the bad meeting of oilness to prime the fuel system produce wearing and tearing.This has become the key issue of restriction alcohol ate development; Its three, methanol gasoline meet the water capacity easily there is demixing phenomenon.

In methanol gasoline, add a kind of Vehicular methanol petrol composite additive, except reducing the corrosive nature of fuel, dry and astringent problem, it also has direct provide protection to engine and exhaust treatment system.From the situation of the Searches of Patent Literature, the research of current alcohol fuel additive concentrates on the alcohol fuel additive of exclusive preventing metal corrosion or hydrotropy mostly, as patent: a kind of additive for gasoline of ethanol (200410079672.2), a kind of methanol gasoline additive (200610147198.1), a kind of low-proportion methanol gasoline additive (201110217727.1), a kind of preparation method (201210184252.5) of alcohol ester type multifunctional methanol gasoline dope, a kind of automobile-used M 85 methanol gasoline additive and its production and use (201210118260.X).To the preventing metal corrosion of wide genotype, Anti-fuel Oil System wearing and tearing, hydrotropy, except the research of the Vehicular methanol petrol composite additive of carbonizing of engine also few.

Summary of the invention

The object of the invention is:, fuel system wearing and tearing strong to metal protection for existing Vehicular methanol petrol become large, that engine easily generates carbon deposit shortcoming; for meeting the demand of market to methanol fuel and environment protection; there is provided described a kind of Vehicular methanol petrol composite additive and preparation method thereof, the present invention proposes the use of oiliness improver in methanol gasoline first in addition.

For realizing above object, technical scheme of the present invention is:

A kind of Vehicular methanol petrol composite additive, its special feature is: by sulfur corrosion inhibiter, prevent fuel oxidation products from causing the inhibiter of corrosion, fuel oiliness improver, detergent-dispersant additive, solubility promoter to form, its component formed by mass percentage is:

Described sulfur corrosion inhibiter adopts the ashless additive without metal ion: single oily tetrahydroglyoxaline, pyridine, hexahydroaniline, N methyldiethanol amine;

The described inhibiter preventing fuel oxidation products from causing corrosion be nitrogenous, sulfur-bearing or hydroxyl, there is surface-active organic inhibitor: mercaptobenzothiazole, benzotriazole, methyl benzotriazazole, alkanamine;

Described fuel oiliness improver is: oleic acid glycol ester, 124 Triazole lipid acid ammonia salt, dimeracid;

Described detergent-dispersant additive is: polyisobutylene succinic acid imines, phenol amine, succimide, aliphatic amide;

Described solubility promoter is: normal hexane, Skellysolve A, ethylcyclohexane, n-propyl alcohol, 2-propyl alcohol, isopropylcarbinol;

Above-mentioned a kind of Vehicular methanol petrol composite additive comprises:

Described sulfur corrosion inhibiter comprises:

Single oily tetrahydroglyoxaline 1%

Pyridine 0.5%

Hexahydroaniline 1.5%;

The described fuel oxidation products that prevents causes the inhibiter of corrosion to comprise:

Mercaptobenzothiazole 2%

Methyl benzotriazazole 4%

Described fuel oiliness improver comprises:

Oleic acid glycol ester 2%

Dimeracid 3%

Described detergent-dispersant additive comprises:

Polyisobutylene succinic acid imines 0.5%

Succimide 0.5%

Described solubility promoter comprises:

N-propyl alcohol 40%

Isopropylcarbinol 45%

Above-mentioned a kind of Vehicular methanol petrol composite additive comprises:

Sulfur corrosion inhibiter 2.5%

Prevent fuel oxidation products from causing the inhibiter 10% of corrosion

Fuel oiliness improver is 7%

Detergent-dispersant additive is 1.5%

Solubility promoter 79%

Described sulfur corrosion inhibiter comprises:

Pyridine 0.5%

N methyldiethanol amine 2%

The described fuel oxidation products that prevents causes the inhibiter of corrosion to comprise:

Benzotriazole 10%

Described fuel oiliness improver comprises:

124 Triazole lipid acid ammonia salt 5%

Dimeracid 2%

Described detergent-dispersant additive comprises:

Phenol amine 1%

Aliphatic amide 0.5%

Described solubility promoter comprises:

Normal hexane 20%

Skellysolve A 15%

Isopropylcarbinol 44%

The preparation method of a kind of automobile-used alcohol ate composite additive of the present invention is:

First calculate compounding high concentration sulphur inhibiter, prevent fuel oxidation products from causing the inhibiter of corrosion, prevent dry and astringent quality fuel system being produced to the oiliness improver of wearing and tearing, the detergent-dispersant additive preventing carbon deposit from generating, solubility promoter of methyl alcohol.Recycling blending method is prepared into its concrete preparation section of automobile-used alcohol ate composite additive and is:

(1) amount of each interpolation component of preparation required for automobile-used alcohol ate composite additive is calculated.

(2) solid constituent in the interpolation component calculated is added in the solubility promoter calculated adopt ultrasonic or paddling process to be prepared even, stable mixed liquor A.

(3) remaining interpolation component is added in mixed liquor A successively according to viscosity order from small to large, stir while adding, finally stir and can mix a kind of automobile-used alcohol ate composite additive B of finished product.

Positively effect of the present invention is:

The alcohol ate that a kind of automobile-used alcohol ate composite additive of the present invention mixes has advantage that is little to the corrosion of automotive oil tank, oil pump, oil meter and oil supply line, that reduce firing system wearing and tearing, strengthen the anti-chance water stratification ability of methanol fuel, and have the advantages that to ensure engine and exhaust treatment system reliability service, noresidue.

Embodiment

The embodiment of a kind of automobile-used alcohol ate composite additive of the present invention and preparation method thereof is below provided, 2 embodiments is provided altogether, but provided embodiment is provided.

Embodiment 1

1. calculate raw materials quality:

Single oily tetrahydroglyoxaline 10g, pyridine 5g, hexahydroaniline 10g, methyl benzotriazazole 100g, oleic acid glycol ester 50g, aliphatic amide 0.5g, succimide 0.5g, isopropylcarbinol 824g.

2. preparation method

(1) first methyl benzotriazazole 100g and isopropylcarbinol 824g is mixed, at 40 DEG C after ultrasonic 45min stirring and dissolving, after being cooled to room temperature, then add hexahydroaniline 10g hold over night, form stable mixed liquor A.

(2) aliphatic amide 0.5g, succimide 0.5g, pyridine and hexahydroaniline 5g, single oily tetrahydroglyoxaline 10g, oleic acid glycol ester 50g are added in mixed liquor A, stir while adding, after stirring, namely obtain a kind of automobile-used alcohol ate composite additive B.During use in alcohol ate at high proportion by 1: 2000, low ratio alcohol ate carries out allotment by 1: 5000 and dilutes.

Embodiment 2

1. raw material: hexahydroaniline 10g, N methyldiethanol amine 15g, mercaptobenzothiazole 48g, dimeracid 100g, polyisobutylene succinic acid imines 1g, phenol amine 1g, ethylcyclohexane 300, n-propyl alcohol 525g

2. preparation method

(1) first by ethylcyclohexane 300 and n-propyl alcohol 525g mixing and stirring, then add wherein by mercaptobenzothiazole 48g, ultrasonic 60min at 40 DEG C, after being cooled to room temperature, then adds 10g hexahydroaniline hold over night, forms stable mixed liquor A.

(2) polyisobutylene succinic acid imines 1g, phenol amine 1g, N methyldiethanol amine 15g, dimeracid 100g are added in mixed liquor A, stir while adding, after stirring, namely obtain a kind of automobile-used alcohol ate composite additive B.During use in alcohol ate at high proportion by 1: 2400, low ratio alcohol ate carries out allotment by 1: 6000 and dilutes.

Claims (2)

1. a Vehicular methanol petrol composite additive, is characterized in that: by sulfur corrosion inhibiter, prevent fuel oxidation products from causing the inhibiter of corrosion, fuel oiliness improver, detergent-dispersant additive, solubility promoter to form, its component formed by mass percentage is:

Described sulfur corrosion inhibiter comprises:

Single oily tetrahydroglyoxaline 1%;

Pyridine 0.5%;

Hexahydroaniline 1%;

The described fuel oxidation products that prevents causes the inhibiter of corrosion to comprise:

Methyl benzotriazazole 10%;

Described fuel oiliness improver comprises:

Oleic acid glycol ester 5%;

Described detergent-dispersant additive comprises:

Aliphatic amide 0.05%;

Succimide 0.05%;

Described solubility promoter comprises:

Isopropylcarbinol 82.4%.

2. a Vehicular methanol petrol composite additive, is characterized in that: by sulfur corrosion inhibiter, prevent fuel oxidation products from causing the inhibiter of corrosion, fuel oiliness improver, detergent-dispersant additive, solubility promoter to form, its component formed by mass percentage is:

Described sulfur corrosion inhibiter comprises:

Hexahydroaniline 1%;

N methyldiethanol amine 1.5%;

The described fuel oxidation products that prevents causes the inhibiter of corrosion to comprise:

Mercaptobenzothiazole 4.8%

Described fuel oiliness improver comprises:

Dimeracid 10%;

Described detergent-dispersant additive comprises:

Phenol amine 0.1%;

Polyisobutylene succinic acid imines 0.1%;

Described solubility promoter comprises:

Ethylcyclohexane 30%;

N-propyl alcohol 52.5%.