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INVENTION
Patent of the Russian Federation RU2276683
ADDITIVE TO PETROL
Name of the inventor: Kapustin Vladimir (RU); Borzaev Bibulat Khamzatovich (RU); Sukhanov Vladimir Stanislavovich (RU); Lebedev Svyatoslav Romanovich (RU); Utrobin Andrey Nikolaevich (RU); Anatoly Fedorovich Rastyapin (RU); Tsarev Anton Vyacheslavovich (RU); Saidahmetov Sardorbek Igamberdievich (UZ); Vlasov Sergey Vladimirovich (RU); Starovoitov Mikhail Karpovich (RU); Kozhevnikov Anatoly Osipovich (RU); Yemelyanov Vyacheslav Evgenievich (RU)
The name of the patentee: Limited Liability Company "Russell GROUP" (RU)
Address for correspondence: 117485, Moscow, ul. Butlerova, 5, k. 1013, B.Kh. Borzayev
Starting date of the patent: 2005.01.25
The present invention relates to the field of refining and the automotive industry, specifically, to the composition of a gasoline additive used in automotive internal combustion engines. The additive to gasoline contains 15-30% of N-methylaniline, 0.5-5.0% of acetic aldehyde, 0.01-1.0% of the organometallic compound, 1.0-1.5% of the hydrocarbon fraction boiling in the range of 60- 200 ° C, and up to 100 ethyl alcohol. As an organometallic compound, the additive may comprise dicyclopentadienyl iron, ferrocene and / or alpha hydroxyisopropylferrocene, cyclopentadienyltricarbonylmanganese or a methyl derivative thereof, hexacarbonylmolybdenum. The additive may contain an antioxidant in an amount of 1.0-1.5% by weight and / or up to 6% by weight of a detergent additive. The use of the proposed additive will increase the production of high-quality commercial gasolines for automobile engines, which will ensure the cleanliness of the fuel system and economy.
DESCRIPTION OF THE INVENTION
The present invention relates to the field of refining and the automotive industry, specifically, to the composition of a gasoline additive used in automotive internal combustion engines.
It is known that compounds (oxygenates) are effective additives to gasoline, raising the octane number and reducing the content of harmful substances in the exhaust gases.
Of great practical interest are additives based on ethyl alcohol. To increase the antiknock properties of fuel compositions containing alcohols, including ethyl alcohol, amines, for example N-methylaniline, are added to their composition.
An ashless high-octane additive to automotive gasolines is known, containing in weight%: N-methylaniline 6.5-70; N, N-dimethylaniline 0.5-5.0; Tertiary butyl alcohol 0.5-27.0; Methanol 0.5-30; Detergent additive not more than 6; Methyl tert-butyl ether - up to 100 (Patent of the Russian Federation No. 2139914, C 10 L 1/18, 1/22, 1999).
However, when using this additive in automotive gasolines, it does not provide them with the required storage stability and high anticorrosive properties. The increase in corrosion is due to the accumulation of acidic products formed as a result of oxidative processes initiated by oxygenates.
To eliminate these drawbacks, detergent, anticorrosive and stabilizing components, for example aldehydes, are added to the composition of the antiknock additives.
An additive to gasoline is known, containing in weight%: N-methylaniline up to 16; Crotonaldehyde 0.1-1.6; Acetic aldehyde 0.3-1.5; Ethyl ester 0.1-0.8 and ethyl alcohol - up to 100 (Patent of the Russian Federation No. 2148077, C 10 L 1/18, 2006).
However, the fuel compositions containing this additive do not have sufficient storage stability due to the low stabilizing properties of ethyl ether and aldehydes.
One of the ways to improve the performance of additives to gasoline is the joint content of nitrogen- and oxygen-containing compounds in the additives, as well as of organometallic compounds: iron, manganese, molybdenum and other metals.
It is known, for example, a fuel additive containing methyl tert-butyl ether, N-methylaniline, the mixture of alcohols of C 3 -C 8, methyl alcohol and an organometallic compound selected from the group consisting of iron naphthenate, manganese naphthenate or, ferrocene or their mixture (Patent NDP No. 108252, C 10 11/30, 1981).
However, the effectiveness of this additive is low and when used in fuel compositions, its increased consumption is required.
An additive is also known, comprising in weight%: N-methylaniline 5-10; Ferrocene and / or alpha hydroxyisopropylferrocene 6.05-6.15; And ethyl alcohol stabilized by an aldehyde ether-alcohol fraction derived from the production of ethyl alcohol from wood raw materials (Patent of the Russian Federation No. 219141, C 10 L 1/18, 1/22, 1999).
The closest to the claimed technical solution is the additive to gasoline, containing in weight%: N-methylaniline 6-20; Crotonaldehyde 0.1-1.5; Acetic aldehyde 0.2-2.0; Water 0.5-1.5; An organic compound of iron or manganese 0.1-4.0; Ethyl alcohol - up to 100 (Patent of the Russian Federation No. 21161639, C 10 L 1/18).
A common disadvantage of the known additives is low storage stability and insufficiently high antiknock and operational properties.
It is an object of the present invention to provide an additive for gasoline based on non-deficient industrial products having high anti-knock properties and providing improved stability in the long-term storage of gasolines containing this additive.
To solve the problem, an additive to gasoline is proposed, containing in mass%:
Moreover, as an organometallic compound, the additive may comprise dicyclopentadienyl iron, ferrocene and / or alpha hydroxyisopropylferrocene, cyclopentadienyltricarbonylmanganese or its methyl derivative, hexacarbonylmolybdenum.
The additive may contain an antioxidant in an amount of 1.0-1.5% by weight and / or up to 6% by weight of the detergent additive.
The difference of the claimed technical solution is that the additive additionally contains a hydrocarbon fraction boiling in the range of 60-200 ° C, and in a selected ratio of components.
Introduction of the additive together with acetic aldehyde hydrocarbon fraction boiling in the range of 60-200 ° C, and the selected ratio of components made it possible to obtain a high-octane additive with improved stabilizing properties.
The addition of an antioxidant and detergent additive to the composition will provide improved operational and environmental performance of gasolines containing this additive.
As an antioxidant, it is preferable to use screened phenols or bis-phenols. As; Detergent additives can be used diethyl phthalate, additives such as AMDOR, AUTOMAG and others.
The proposed additive is prepared using a non-waste technology using non-deficient products of industrial production.
To illustrate the essence of the claimed technical solution, 8 additive samples were prepared. The prepared samples were tested in the base gasoline, which is a straight-run fraction boiling in the range of 40-180 ° C and in a reference fuel (a mixture of 70% iso-octane and 30% normal heptane) using a set of qualification evaluation methods. Chemical stability was assessed in accordance with GOST 2205; Corrosive aggressiveness in accordance with GOST 1855597; Antiknock properties in accordance with GOST 511-82 (motor method) at the UIT-85 unit; were evaluated for detergency IT Installation for flushing coefficient (K cm) - the higher the value, the more effective the additive.
The composition of the samples and the test results are shown in the table.
The results of the tests confirm that only the combined content of the acetic aldehyde additive, the hydrocarbon fraction and the declared component ratio (samples 1, 2, 6, 7, 8) provide it with high anti-knock properties, improved stability and high performance characteristics.
The use of the proposed additive will increase the production of high-quality marketable gasolines for automobile engines, which will ensure the cleanliness of the fuel system and fuel economy.
CLAIM
1. An additive for ethanol-based gasoline containing N-methylaniline, acetic aldehyde, an organometallic compound, characterized in that it further comprises a hydrocarbon fraction boiling in the range of 60-200 ° C. with the following component ratio, by weight:
2. The additive according to claim 1, characterized in that the organometallic compound is selected from the group: dicyclopentadienyl iron, ferrocene and / or alpha hydroxyisopropylferrocene, cyclopentadienyltricarbonylmanganese or a methyl derivative thereof, hexacarbonylmolybdenum.
3. Additive according to claims 1 and 2, characterized in that it additionally contains an antioxidant in an amount of 1.0-1.5% by weight and / or up to 6% by weight of a detergent additive.
print version
Published on January 14, 2007
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