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A kind of rare earth modified gasoline additive and its preparation method

A gasoline additive and rare earth modification technology, applied in the field of gasoline additives, can solve the problems of fuel stratification, poor comprehensive performance, environmental pollution, etc., and achieve the effects of improving anti-corrosion and anti-oxidation performance, narrow particle size distribution, and sufficient combustion

Inactive Publication Date: 2021-09-17
杭州碧源节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above deficiencies in the prior art, the technical problem to be solved in the present invention is to provide a rare earth modified gasoline additive and its preparation for the problems of rare earth modified gasoline additives such as environmental pollution, fuel stratification and poor overall performance. The method improves the overall performance of the engine, reduces the emission of carbon oxides and nitrogen oxides, solves the problems of engine carbon deposition and fuel stratification, and prolongs the service life of the engine. It has a huge market application prospect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of preparation method of rare earth modified gasoline additive, described preparation method comprises the following steps:

[0033] S1: Prepare lanthanum nitrate, cerium nitrate and cobalt nitrate into an aqueous solution with a mass percentage concentration of 10wt%, add it to a reaction kettle at 80°C, add sodium hydroxide dropwise while heating and stirring to carry out coprecipitation reaction, and react for 3 hours to obtain La / Ce / Co ternary precursor solution; after filtering and drying, program temperature rise, high-temperature calcination at 850°C, cool and ball mill and sieve to obtain La / Ce / Co ternary composite oxide;

[0034] S2: Dispersing the La / Ce / Co ternary composite oxide obtained in step S1 in polyvinylpyrrolidone, stirring magnetically for 18 hours, adding a surface modifier, and continuing to stir for 12 hours to obtain a surface-modified rare earth composite oxide;

[0035] S3: Weigh the following mixed raw materials by weight: 3 parts by we...

Embodiment 2

[0046] A kind of preparation method of rare earth modified gasoline additive, described preparation method comprises the following steps:

[0047] S1: Prepare lanthanum nitrate, cerium nitrate and cobalt nitrate into an aqueous solution with a mass percent concentration of 5wt%, add it to a reaction kettle at 100°C, add sodium hydroxide dropwise while heating and stirring to carry out a co-precipitation reaction, and react for 1 hour to obtain La / Ce / Co ternary precursor solution; after filtering and drying, the temperature is programmed, and high-temperature calcination is carried out at 950°C, and after cooling and ball milling, the La / Ce / Co ternary composite oxide is obtained;

[0048] S2: Dispersing the La / Ce / Co ternary composite oxide obtained in step S1 in polyvinylpyrrolidone, stirring magnetically for 12 hours, adding a surface modifier, and continuing to stir for 8 hours to obtain a surface-modified rare earth composite oxide;

[0049] S3: Weigh the following mixed raw...

Embodiment 3

[0060] A kind of preparation method of rare earth modified gasoline additive, described preparation method comprises the following steps:

[0061] S1: Prepare lanthanum nitrate, cerium nitrate and cobalt nitrate into an aqueous solution with a mass percentage concentration of 15wt%, add it to a reaction kettle at 100°C, add sodium hydroxide dropwise while heating and stirring to carry out coprecipitation reaction, and react for 6 hours to obtain La / Ce / Co ternary precursor solution; after filtering and drying, program temperature rise, high-temperature calcination at 780°C, cool and ball mill and sieve to obtain La / Ce / Co ternary composite oxide;

[0062] S2: Disperse the La / Ce / Co ternary composite oxide obtained in step S1 in polyvinylpyrrolidone, stir magnetically for 24 hours, add a surface modifier, and continue stirring for 16 hours to obtain a surface-modified rare earth composite oxide;

[0063] S3: Weigh the following mixed raw materials by weight: 5 parts by weight of s...

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Abstract

The invention discloses a preparation method of a rare earth modified gasoline additive. S1: Co-precipitate the lanthanum nitrate, cerium nitrate and cobalt nitrate solution by adding sodium hydroxide dropwise to obtain a precursor solution; calcinate at a high temperature to obtain La / Ce / Co ternary composite oxide; S2: disperse it in polyvinylpyrrolidone, add a surface modifier to obtain a surface-modified rare earth composite oxide; S3: weigh short-chain alcohol, perfluoropolyether by weight , ethyl tert-butyl ether, dipolyethylene glycol monomethyl pentyl ether, butyl acetyl ricinoleic acid ester, fluorine-containing diamine compound; after mixing evenly, add rare earth composite oxide and cage-type silsesquisil oxane to obtain the rare earth modified gasoline additive. The rare-earth modified gasoline additive prepared by the invention not only solves the problems of engine carbon deposition and fuel stratification, but also improves the overall performance of the engine, prolongs the service life of the engine, and has a huge market application prospect.

Description

technical field [0001] The invention relates to the technical field of gasoline additives, in particular to a rare earth modified gasoline additive and a preparation method thereof. Background technique [0002] my country is a country that is relatively scarce in oil and gas resources, but it has a huge demand for oil, and its oil consumption has surpassed that of Japan, becoming the second largest oil consumer in the world after the United States. With the development of the country and the continuous improvement of people's living standards, the sales of automobiles have been increasing year by year in recent years, and the demand for gasoline for vehicles is also increasing. [0003] At present, the quality of domestic fuel is relatively low. After the vehicle is used for a long time, the intake manifold, valves, spark plugs, and combustion chambers on the engine will evaporate and oxidize unburned gasoline due to idling or low-speed conditions, thereby forming carbon de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/10C10L1/12C10L1/182C10L1/185C10L1/19C10L1/20C10L1/222
CPCC10L1/10C10L1/1233C10L1/182C10L1/1852C10L1/19C10L1/203C10L1/2222
Inventor 徐武警
Owner 杭州碧源节能科技有限公司
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