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INVENTION
Russian Federation Patent RU2213126
Gasoline additives, fuel compositions
Name of the inventor: Emelyanov VE .; Onoychenko SN .; TA Klimova .; Fedotov AV .; Balashov AL
The name of the patentee: Limited Liability Company "Synthesis Engineering"
Address for correspondence:. 109429, Moscow, Kapotnya, 3rd quart, 19, kv.8, SN Onoychenko
Starting date of the patent: 2002.08.14
The invention relates to petroleum refining and petrochemistry, particularly to a gasoline additive composition and fuel composition containing this additive intended for use in automotive internal combustion engines. The additive comprises a gasoline octane 1,0-20,0% component based on a nitrogen or oxygen containing compound, 0.5-1% anti-corrosion detergent-component is a mixture of polyoxyethylated ethers of monoethanolamides of synthetic fatty acids of fraction C 10 -C 16, or the condensation product of the resid producing methyldiethanolamine and fatty acid C 12 to C 24 or mixtures of derivatives of imidazolines solution in an organic solvent, and 100 of isopropyl alcohol. As an octane additive component contains N-methylaniline, or methyl tert-butyl ether or diisopropyl ether. A fuel composition comprising a petroleum-based additive of the above composition in an amount of 1,0-15,0 wt.%. The use of the present invention will allow to increase the production of unleaded high-octane gasolines of high performance, in particular, anti-corrosion properties.
DESCRIPTION OF THE INVENTION
The invention relates to oil refining and petrochemistry, particularly to a gasoline additive composition and fuel composition containing this additive intended for use in automotive internal combustion engines.
. Known additive to motor gasoline based on aromatic amines: N-methyl aniline, n-toluidine, xylidine, etc. (. MO Lerner Chemical controls the combustion of motor fuels - M .: Chemistry, 1979, s.84-89.).
Additives based on aromatic amines are good octane components of motor gasoline. However, because of the tendency to the formation of resins, organic sediments and deposits in the fuel supply system, these additives may be incorporated into the gasoline composition in a limited amount.
As octane components of gasoline, and known commonly used oxygenates - oxygenated compounds such as low molecular weight alcohols, ethers, and mixtures thereof.
For example, known octane additive to gasoline, which is a mixture of ethyl alcohol and methyl tert-butyl ether (MTBE) (US patent 4207077, C 10 L 1/18, 1980).
Known and octane additive to gasoline-based ethanol, ethyl tertiary butyl ether, tert-butyl alcohol (US patent 4541836, C 10 L 1/18/1985).
However, a disadvantage of gasolines containing additive based on ethyl alcohol is their phase instability and the possibility of deterioration of the corrosion properties. Increasing corrosiveness caused by accumulation of acidic products formed by oxidative processes initiated oxygenates.
To eliminate the above drawbacks octane detergents and additives are introduced into their components anticorrosive composition.
Known additive to motor gasoline, which have a higher anti-knock and environmental properties, containing nitrogen, oxygen and organometallic compounds with the addition of detergents.
It is known, for example, multifunctional additive to motor gasoline by N-methylaniline containing ferrocene, aliphatic C 1 -C 5 linear or branched chain alcohols or mixtures thereof and / or ethers or mixtures thereof, the additive "Automag" antioxidant and aniline (Patent RF 2132359, C 10 L 1/18, 1/22, 1999).
This patent also stated that the said additive is introduced into the gasoline in an amount of 0,2-20,0 wt.%.
However, the content in the composition of ferrocene additive effect on the increase in engine wear. Furthermore, additive "Automag", which is a component of detergent-corrosion does not provide the desired properties of the additive, so when using additives in motor gasoline requires the additional introduction into its composition of anticorrosion component.
The object of the present invention to provide a gasoline additive having both high antiknock, corrosion, detergents and anti-freeze properties, and fuel compositions containing this additive.
To solve this problem the additive to gasoline octane containing component based on a nitrogen or oxygen containing compound, an anticorrosive detergent-component is a mixture of polyoxyethylated esters of synthetic fatty acid monoethanolamide fraction C 10 -C 16, or a condensation product of the resid producing methyldiethanolamine and fatty acid C 12 -C 14, or a mixture of derivatives of imidazolines solution in an organic solvent, and isopropyl alcohol, and the components are taken in the following proportion in wt.%:
- Octane component - 1,0-20,0
- Washing and anticorrosion component - 0.5-1.0
- Isopropyl alcohol - up to 100.
Moreover, as the octane additive component contains N-methylaniline, or methyl tert-butyl ether or diisopropyl ether.
And fuel is proposed based on the gasoline composition containing the above additive in an amount of 1,0-15,0 wt.%.
The set of components mentioned above and their ratio is novel and provides an additive having higher properties over known additives.
The fuel composition based on gasoline containing the proposed additive and has improved environmental performance.
The proposed supplement is prepared by mixing the components with constant stirring.
It was prepared by the method proposed additives seven samples, whose composition and their functional properties are shown in Table 1.
All the components included in the supplements are products of industrial production and are available on the relevant specifications and State Standards.
Component A - a mixture of polyoxyethylated ethers MEA synthetic fatty acid fraction C 10 -C 16 (TU 6-02-640-91 with izm.1,2). The nonionic surfactant used in detergent formulations in various sectors of the economy.
Component B - a condensation product of resid production methyldiethanolamine and fatty acids C 12 -C 24 (TU 2415-003-11159873-99). The product is intended for the protection from corrosion of process equipment.
Component B - a mixture of derivatives of imidazolines solution in an organic solvent (TU 38.401-58-237-99). Product type 'Nefras-A "intended for use in the oil industry to protect equipment from chemical corrosion.
- N-methylaniline Technology (TU 6-02-571-90 with izm.1-4).
- Methyl tert-butyl ether (TU 38.103704-90).
- Diisopropyl ether (TU 6-09-3704-84).
- Isopropyl alcohol (GOST 9805-84).
Test sample the antiknock additives efficiency held in "a mixture of 70" (a mixture of isooctane and normal heptane 70:30 v) by the motor method GOST 511-82. The higher increase in octane (04 L / m), the higher the efficiency antiknock additive.
Determination of the effectiveness of the cleaning additive samples was carried out on a motor installation IT method included in the set of methods for the Qualification of motor gasoline, by determining the time flushing model pollution fuels, specially crafted to mesh element. The lower the figure the average settlement time (t) complete rinsing - the greater the efficiency of the cleaning, and the higher the overall effect of flushing (e) the better detergency additives.
Corrosion samples additive efficiency determined by ASTM D 665 method B using AFM domestic appliance 1 in 92 octane gasoline medium in the presence of sea water using special rods (Art. 45). Assessment of the surface of the rod after the corrosion tests carried out visually similar to the DIN 51585 method.
Sample 6 was tested additives proposed in the composition of the fuel composition in an amount of 5, 10; and 15 wt.%. The base gasoline used commercial gasoline AI-80. Test results of the samples of fuel compositions containing the proposed additive are shown in Table 2.
The cleaning and anti-corrosion efficiency of the fuel composition of samples was evaluated by, the methods described above.
De-icing properties were evaluated by isopropyl equivalent, with more than 1 equivalent of isopropyl almost completely eliminates carburetor icing.
The data presented in Table 2, confirm that the proposed additive when used in the composition of gasoline at the same time ensures a high cleaning, antiknock, de-icing and anti-corrosion properties.
The use of the present invention will allow to increase the production of unleaded high-octane gasolines of high performance, such as corrosion, properties.
CLAIM
1. The addition to gasoline octane containing component based on a nitrogen or oxygen containing compound, washing and anticorrosion component and an aliphatic alcohol, characterized in that the anti-corrosion detergent-component it contains a mixture of polyoxyethylated esters of synthetic fatty acid monoethanolamide fraction C 10 -C 16 or a condensation product of the resid producing methyl diethanolamine and the fatty acids C 12 -C 24, or a mixture of derivatives of imidazolines solution in an organic solvent and an aliphatic alcohol containing isopropyl alcohol, while the components are taken in the following ratio, wt. %:
- Octane component - 1,0-20,0
- Washing and anticorrosion component - 0.5-1.0
- Isopropyl alcohol - Up to 100
2. Additive according to claim gasoline. 1, characterized in that as an octane component it contains N-methylaniline, or methyl tert-butyl ether or diisopropyl ether.
3. The fuel composition based on gasoline containing the multifunctional additive, characterized in that as a multifunctional additive it contains an additive according to claims. 1 and 2 in an amount of 1,0-15,0 wt. %.
print version
Publication date 07.04.2007gg
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