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Vehicle methanol fuel corrosion-inhibitor for various metals
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A technology of metal corrosion inhibitor and methanol for vehicles, which is applied in the direction of fuel, liquid carbon-containing fuel, petroleum industry, etc., can solve problems such as corrosion of metal materials, and achieve the effect of less additives
Active Publication Date: 2015-05-20
中油延长石油销售股份有限公司
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[0003] The purpose of the present invention is to overcome the deficiencies of the existing methanol fuelmetalcorrosion inhibitor technology, to provide a kind of vehicle methanol fuel metal corrosion inhibitor with excellent effect, easy to get raw materials, and easy to use, so as to solve the problem of multiple damage to automobiles during the use of methanol fuel. corrosion of metallic materials
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Embodiment 1
[0028] In terms of mass percentage, prepare 40% heptadecyl hydroxyethyl imidazoline, 5% dimerized oleic acid, 5% polyaspartic acid, 10% benzotriazole, 3% hexadecane amine, 3% N-methylpyrrole, 0.1% N,N'-disalicylidenediamine, and the balance is isopropanol.
[0029] First add the dispersant to the blending kettle, then add imidazoline derivatives, dimer acid, polyaspartic acid, benzoxazole, organic amine, nitrogen-containing heterocyclic compounds, metal ion deactivator while stirring, fully Stir evenly to form a transparent liquid to obtain the vehicle methanol fuel metal corrosion inhibitor of the present invention.
Embodiment 2
[0031] In terms of mass percentage, prepare 30% heptadecenylamine ethyl imidazoline, 10% dimerized linoleic acid, 7% polyaspartic acid, 3% benzotriazole, 5% decane Octamine, 6% of 2,5-dimethylpyrrole and 0.05% of N,N'-disalicylidenediamine, and the balance is isobutanol.
[0032] First add isobutanol into the blending kettle, then add heptadecenylamine ethyl imidazoline, dimerlinoleic acid, polyaspartic acid, benzotriazole, octadecylamine, pyrrolidone and N , N'-disalicylidene propylenediamine, fully stirred until the mixed solution becomes transparent, and the methanol fuel metal corrosion inhibitor for vehicles of the present invention is obtained.
Embodiment 3
[0034] In terms of mass percentage, prepare 35% oleic imidazoline, 8% dimerized oleic acid, 7% polyaspartic acid, 5% benzotriazole, 3% hexadecylamine, 2% 2,5-dimethyl-1-phenylpyrrole, 0.08% N,N'-disalicylidenediamine, and the balance is isoamyl alcohol.
[0035] First add isoamyl alcohol into the mixing tank, then add oleic imidazoline, dimer oleic acid, polyaspartic acid, benzotriazole, hexadecylamine, 2,5-dimethyl- 1-phenylpyrrole and N,N'-disalicylidene propylenediamine are fully stirred until the mixed liquid becomes transparent, and the methanol fuel metal corrosion inhibitor for vehicles of the present invention is obtained.
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Abstract
The invention belongs to the field of substituting an automobile alcoholether for a fuel additive, and in particular relates to a vehicle methanol fuel corrosion-inhibitor for various metals. The methanol fuel corrosion-inhibitor for various metals is composed of 30-40wt% of imidazoline derivatives, 5-10wt% of dimer acids, 3-7wt% of polyaspartic acid, 3-10wt% of benzoxazole, 1-5wt% of organic amine, 2-6wt% of nitrogen heterocyclic ring-containing compounds, 0.05-0.1wt% of metalion passivator and the balance of dispersant. The vehicle methanol fuel corrosion-inhibitor is suitable for anti-corrosion and corrosion inhibition of various metals, such as red copper, brass, 45# steel disc, stainless steel, alumium, zinc and tin. Besides, the vehicle methanol fuel corrosion-inhibitor for various metals is low in the addition amount of additives, nontoxic and pollution-free, and belongs to an environment-friendly corrosion inhibitor.
Description
technical field [0001] The invention belongs to the field of automotive alcoholether alternative fuel additives, in particular to a metalcorrosion inhibitor for methanol fuel used in vehicles. Background technique [0002] Methanol has properties similar to petroleum in many respects and is therefore considered one of the most promising alternative fuels in internal combustion engines, especially spark ignition engines. Methanol generally contains acidic substances in the production and preparation process; the water absorption of methanol itself makes it contain a small amount of water during storage, and a small amount of organic acid will also be produced by air oxidation or bacterial fermentation; a small amount of aldehydes, Acidic substances such as acid; these acidic substances will cause corrosion and wear to the fuel system and combustionsystem of engines using alcohol fuels. This problem has been introduced in some patents. Rust inhibitors, alkenyl esters or ...
Claims
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