CN101649230A - Metal inhibiter of methanol gasoline - Google Patents
Metal inhibiter of methanol gasoline Download PDFInfo
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- CN101649230A CN101649230A CN200910160505A CN200910160505A CN101649230A CN 101649230 A CN101649230 A CN 101649230A CN 200910160505 A CN200910160505 A CN 200910160505A CN 200910160505 A CN200910160505 A CN 200910160505A CN 101649230 A CN101649230 A CN 101649230A
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- methanol gasoline
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Abstract
The invention relates to a metal inhibiter of methanol gasoline, belonging to the field of additives of alcohol ether substitute fuel of vehicles. The metal inhibiter of methanol gasoline is preparedfrom the following components by weight percent: 40-60 percent of fatty alcohol, 10-30 percent of rust inhibitor, 15-35 percent of alkenyl ester or ether and 3-8 percent of surface active agent. The invention has the characteristics of low cost, favorable anti-corrosion effect, simple preparation, and the like. By a soak test of yellow brass, red copper, 45# steel, aluminum, zinc and gasifier, thecorrosion resistance of the industrial product is the same as that of the merchantable gasoline; the test for comparing vehicles running 20 thousand kilometers shows that the metal inhibiter has obvious effect on metal corrosion resistance; and overhauling proves that the pressure of an engine cylinder is in a normal state, the corrosion condition of the cylinder is equivalent to that of the merchantable gasoline and the oil supply system and the gasifier are not obviously corroded. Accordingly, the invention has wide practical application value for promoting substituted fuel of methanol gasoline.
Description
One, technical field
The invention belongs to automobile alcohol ether fuel substitute additive agent field, particularly metal inhibiter of methanol gasoline.
Two, background technology
Since the seventies, the methanol gasoline fuel substitute just becomes the important development direction of world energy sources exploitation.Methanol gasoline produces aldehyde and acid inevitably in the production preparation process, as formaldehyde, formic acid.The water-absorbent of methyl alcohol own is strong, store and use, and is subjected to atmospheric oxidation and fermentation using bacteria and can generates a small amount of organic acid.These acidic substance can make engine cause corrosion and wearing and tearing.Therefore, for addressing this problem the patent achievement that some Aalcohols fuel anti-corrosion of metal aspects occurred." synthetic environmental-protective methanol fuel " patent of invention as notification number CN100453625C, disclosing anti-rotten antigum inhibitor in its additive is 2,6-ditertbutylparacresol and potassium permanganate, methanol gasoline is had certain anti-oxidant and to the anticorrosive effect of metal, but weak point is a potassium permanganate meets methyl alcohol, ethanol promptly decomposes, and this has just limited use; " a kind of metal corrosion inhibitor for alcohol fuel " patent of invention as notification number CN1035825, benzotriazole, linoleic acid dimer composition are disclosed, obvious to the corrosive effect that suppresses different metal, can suppress pure fuel effectively to multiple corrosions of metal such as brass, red copper, 45# steel, zinc, but the adding of linoleic acid dimer can produce certain influence to the acid number of Aalcohols fuel; " corrosion-resistant agent for alcohol-containing gasoline and preparation method thereof " patent of invention as notification number CN1156558C, metallic copper corrosion to ethanol petrol has fairly obvious inhibition effect, but will contact with multiple metal such as aluminium, zinc, iron etc. during pure fuel uses, so use range is restricted; " alcohol fuel additive of preventing metal corrosion and inhibition swell rubber " patent of invention as publication number CN101280229A, the component of preventing metal corrosion is disclosed, corrosion of metal is played effective inhibition, its effect is apparent in view, but myo-Inositol hexaphosphate composition wherein, owing to the existence of phosphoric has limited use, hexahydroaniline has strong organic bases character, and the base number of methanol gasoline is affected; Periodical " Speciality Petrochemicals " the 6th periodical " automobile-used high methanol base gasoline-like alternative prescription research " that step on and for example, the author is Southwest Petroleum Institute Zhou Ming etc., disclosing metal corrosion inhibitor in the literary composition is components such as organic acid amine, organic alcohol amine class, Hinered phenols, to suppressing metallic corrosion, particularly to copper, 45# steel, zinc, gasifier material, significantly improved corrosion inhibition effect to ferrous metal, but organic thanomin is Monoethanolamine MEA BASF especially, belong to the organic alkali compounds, methanol gasoline is existed the variation of base number.
Three, summary of the invention
The present invention is intended to overcome the deficiency of above inhibition methanol gasoline metallic corrosion technology, provide a kind of effective, make easily, cost is low, a kind of metal inhibiter of methanol gasoline that the oil quality of methanol gasoline is not affected.
Solving the metal inhibiter of methanol gasoline technical scheme that above technical problem adopts, is to be made by following weight percent component:
Fatty Alcohol(C12-C14 and C12-C18) 40-60%
Rust-preventive agent 10-30%
Thiazolinyl fat or ether 15-35%
Tensio-active agent 3-8%
Described Fatty Alcohol(C12-C14 and C12-C18) is by C
3-C
5Carbon alcohol is formed in positive structure or the isomery, preferred isopropylcarbinol, Virahol, Pentyl alcohol, the optional wherein mixture of one or more equal equal proportions.
Described rust-preventive agent is meant the metal antirusting agent benzotriazole, 2-mercaptobenzothiazole, the benzodiazole that generally use in the national petroleum additive, and is optional wherein a kind of, or the mixture of multiple equal equal proportion.
Described alkenyl esters or ether are meant alkenyl succinic acid ester, allyl acetic acid ester, allyl ethyl ether, the optional wherein mixture of one or more equal equal proportions.
Described tensio-active agent is meant this dish 85 of nonionogenic tenside, span 80, this dish 65, the optional wherein mixture of one or more equal equal proportions.
Preparation method of the present invention is as follows:
Earlier Fatty Alcohol(C12-C14 and C12-C18) is added in the blending kettle, add rust-preventive agent, alkenyl esters or ether, tensio-active agent then while stirring, stir into transparent liquid, promptly get finished product of the present invention.
The advantage of technique scheme of the present invention is:
(1), adopt the metal surface passivation method, the corrosion mitigating effect of metal is significantly improved.This be since in the prescription structure of component contain double-basis group, existing lipophilic nonpolar alkyl, the polarity hydroxyl that parent's alcohol is arranged again, alkyl can with the metallic surface strong effect, form firm absorption oil film, and hydroxyl can dissolve each other with methyl alcohol and be connected, thereby isolated contacting of methyl alcohol and metal, avoided methyl alcohol to corrosion of metal.This method that makes the metallic surface generate one deck oil film is a deactivation method, and it is to be formed naturally in flow process by methanol gasoline, and at normal temperatures metallic surface is carried out passivation, generates one deck compact protective film, thereby effectively stops the ionic corrosion.
(2), to corrosion inhibition for metal, turn to comprehensive effect by single effect, general metal inhibitor is effective to red copper, to the preservative property of aluminium, brass also can, but anticorrosion relatively poor to 45# steel and gasification modulator material.The present invention has antiseptic power preferably to multiple metals such as copper, aluminium, 45# steel, zinc, gasifier materials, and good especially with the methanol gasoline mutual solubility.
(3), the oil quality that improves methanol gasoline had certain promoter action.Because of having selected to help to improve the effective constituent of the oil quality of methanol gasoline in the component.All contain double-basis group as Fatty Alcohol(C12-C14 and C12-C18), tensio-active agent, rust-preventive agent etc., can be dissolved in gasoline and can be dissolved in methyl alcohol again, have further promotion hydrotropy stabilising effect.Simultaneously, prescription does not contain strong acid, highly basic composition, can not destroy the acid base equilibrium of oil product.
Four, embodiment
Below in conjunction with specific embodiment, the invention will be further described, but the present invention not only is confined to these embodiment.
Embodiment 1
A kind of metal inhibiter of methanol gasoline, its component and weight percent are as follows:
Fatty Alcohol(C12-C14 and C12-C18) 50%
Rust-preventive agent 20%
Thiazolinyl fat or ether 25%
Tensio-active agent 5%
Wherein: Fatty Alcohol(C12-C14 and C12-C18) is an isopropylcarbinol; Rust-preventive agent is benzotriazole; Alkenyl esters or ether are the alkenyl succinic acid ester; Tensio-active agent is this dish 85.
A kind of metal inhibiter of methanol gasoline, its preparation method is as follows:
Earlier isopropylcarbinol is added in the blending kettle, add benzotriazole, alkenyl succinic acid ester, this dish 85 then while stirring, stir into transparent liquid, promptly get finished product of the present invention.
Embodiment 2
A kind of metal inhibiter of methanol gasoline, its component and weight percent are as follows:
Fatty Alcohol(C12-C14 and C12-C18) 40%
Rust-preventive agent 22%
Thiazolinyl fat or ether 35%
Tensio-active agent 3%
Wherein: Fatty Alcohol(C12-C14 and C12-C18) is a Virahol; Rust-preventive agent is 2-mercaptobenzothiazole; Alkenyl esters or ether are the allyl acetic acid ester; Tensio-active agent is a span 80.
A kind of metal inhibiter of methanol gasoline, its preparation method is with embodiment 1.
Embodiment 3
A kind of metal inhibiter of methanol gasoline, its component and weight percent are as follows:
Fatty Alcohol(C12-C14 and C12-C18) 47%
Rust-preventive agent 30%
Thiazolinyl fat or ether 15%
Tensio-active agent 8%
Wherein: Fatty Alcohol(C12-C14 and C12-C18) is a Pentyl alcohol; Rust-preventive agent is benzodiazole; Alkenyl esters or ether are allyl ethyl ether; Tensio-active agent is this dish 65.
A kind of metal inhibiter of methanol gasoline, its preparation method is with embodiment 1.
Embodiment 4
A kind of metal inhibiter of methanol gasoline, its component and weight percent are as follows:
Fatty Alcohol(C12-C14 and C12-C18) 60%
Rust-preventive agent 10%
Thiazolinyl fat or ether 23%
Tensio-active agent 7%
Wherein: Fatty Alcohol(C12-C14 and C12-C18) is isopropylcarbinol, Virahol, the Pentyl alcohol mixture with 1: 1: 1 equal equal proportion; Rust-preventive agent is benzotriazole, 2-mercaptobenzothiazole, the benzodiazole mixture with 1: 1: 1 equal equal proportion; Alkenyl esters or ether are alkenyl succinic acid ester, allyl acetic acid ester, the allyl ethyl ether mixture with 1: 1: 1 equal equal proportion; Tensio-active agent is this dish 85, span 80, this dish 65 mixture with 1: 1: 1 equal equal proportion.
A kind of metal inhibiter of methanol gasoline, its preparation method is with embodiment 1.
Above isopropylcarbinol, Virahol, Pentyl alcohol are the Yanshan Mountain, Beijing chemical plant product that faces south; Benzotriazole is Jiangyin insecticide factory product; 2-mercaptobenzothiazole is a Tianjin Organic Chemical Plant product, and benzodiazole is a Shanghai chemical reagent work product; The alkenyl succinic acid ester is a Lanzhou refinery head factory product; Allyl acetic acid ester and allyl ethyl ether are Shanghai reagent one factory's product; This dish 85, span 80, this dish 65 are chemical plant, Lvshun product.
The anticorrosion ability that a kind of metal inhibitor of the present invention is used for methanol gasoline sees the following form.Test method: tinsel soak test, 28 ± 5 ℃ of room temperatures, dip time: 30 days.
More than test digital proof in the table, the present invention has good antiseptic power to multiple metals such as copper, 45# steel, aluminium, zinc, gasifier materials, and fine with the methanol gasoline mutual solubility.
Use metal inhibitor of the present invention, in methanol gasoline, add agent and the trap for automobile simultaneous test that does not add agent, the M85 methanol gasoline that does not add inhibiter of the present invention, on east wind EQ140 type cargo vehicle, travel 20,000 kilometers, the moderate corrosion has taken place in gasifier internal surface, and petrol-feed pump also has mild corrosion; And add the M85 methanol gasoline of inhibiter of the present invention, and showing that engine cylinder pressure is normal travelling after 20,000 kilometers engine and prime the fuel system opened and inspect, cylinder wear is suitable with commodity in use gasoline, and oil supply system and gasifier do not have the obvious corrosion phenomenon.
Proof is used in practice, and the present invention is fairly obvious to the anti-corrosion of metal effect of methanol gasoline, has the value of practical application to promoting the methanol gasoline fuel substitute, and extensive market prospects will be arranged.
Claims (5)
1, a kind of metal inhibiter of methanol gasoline is characterized in that being made by following weight percent component:
Fatty Alcohol(C12-C14 and C12-C18) 40-60%
Rust-preventive agent 10-30%
Thiazolinyl fat or ether 15-35%
Tensio-active agent 3-8%
2, a kind of metal inhibiter of methanol gasoline according to claim 1 is characterized in that described Fatty Alcohol(C12-C14 and C12-C18), is by C
3-C
5Carbon alcohol is formed in positive structure or the isomery, preferred isopropylcarbinol, Virahol, Pentyl alcohol, the optional wherein mixture of one or more equal equal proportions.
3, a kind of metal inhibiter of methanol gasoline according to claim 1 is characterized in that described rust-preventive agent, is meant benzotriazole, and 2-mercaptobenzothiazole, benzodiazole are optional wherein a kind of, or the mixture of multiple equal equal proportion.
4, a kind of metal inhibiter of methanol gasoline according to claim 1 is characterized in that described tensio-active agent, is meant this dish 85 of nonionogenic tenside, span 80, this dish 65, the optional wherein mixture of one or more equal equal proportions.
5, a kind of metal inhibiter of methanol gasoline according to claim 1, it is characterized in that the preparation method is as follows: earlier Fatty Alcohol(C12-C14 and C12-C18) is added in the blending kettle, add rust-preventive agent, alkenyl esters or ether, tensio-active agent then while stirring, stir into transparent liquid, promptly get finished product of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910160505A CN101649230A (en) | 2009-07-16 | 2009-07-16 | Metal inhibiter of methanol gasoline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910160505A CN101649230A (en) | 2009-07-16 | 2009-07-16 | Metal inhibiter of methanol gasoline |
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|---|---|
| CN101649230A true CN101649230A (en) | 2010-02-17 |
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| CN200910160505A Pending CN101649230A (en) | 2009-07-16 | 2009-07-16 | Metal inhibiter of methanol gasoline |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433173A (en) * | 2011-11-01 | 2012-05-02 | 开滦（集团）有限责任公司 | Methanol gasoline and preparation method thereof |
| CN102603641A (en) * | 2012-01-19 | 2012-07-25 | 中源新能源(福建)有限公司 | N-imidazolyl acetate derivative, and preparation method and application thereof |
| CN108913246A (en) * | 2018-07-27 | 2018-11-30 | 泸州中天醇基能源有限公司 | A kind of peace and quiet preservative of methanol gasoline and preparation method thereof |
| CN110157508A (en) * | 2019-04-19 | 2019-08-23 | 寇延华 | The anti-swelling additive of the automobile-used boat alcohol fuel anti-corrosion of one kind and production method |
-
2009
- 2009-07-16 CN CN200910160505A patent/CN101649230A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433173A (en) * | 2011-11-01 | 2012-05-02 | 开滦（集团）有限责任公司 | Methanol gasoline and preparation method thereof |
| CN102603641A (en) * | 2012-01-19 | 2012-07-25 | 中源新能源(福建)有限公司 | N-imidazolyl acetate derivative, and preparation method and application thereof |
| CN102603641B (en) * | 2012-01-19 | 2014-06-04 | 中源新能源(福建)有限公司 | N-imidazolyl acetate derivative, and preparation method and application thereof |
| CN108913246A (en) * | 2018-07-27 | 2018-11-30 | 泸州中天醇基能源有限公司 | A kind of peace and quiet preservative of methanol gasoline and preparation method thereof |
| CN110157508A (en) * | 2019-04-19 | 2019-08-23 | 寇延华 | The anti-swelling additive of the automobile-used boat alcohol fuel anti-corrosion of one kind and production method |
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Application publication date: 20100217 |