KR101869762B1 - complex additive agents for fuels - Google Patents

Abstract

The fuel composite additive according to the present invention can significantly retard phase separation phenomenon even under adverse environmental conditions such as high humidity, low temperature, and long-term storage. In addition, the additive has a lower freezing point to prevent icing in winter, and has an excellent effect of cleaning impurities fixed in an engine. Further, the additive cannot be used in applications such as drinks other than fuel so as not to cause a fatal problem. The fuel composite additive comprises: biobutanol; ketone-based compounds; and ether-based compounds.

Description

Complex additive agents for fuels

The present invention relates to a fuel composite additive for use in a variety of fuels.

Fossil fuels or petroleum-based fuels, which have come to the fore of the Industrial Revolution, have recently become increasingly used in petroleum-based products because of rising prices, the threat of resource shortage and supply intervention, Biofuels are attracting particular attention as an alternative.

Biofuels generally refer to all fuels derived from biomass. Biomass is often produced from vegetable sources such as corn, soy, flaxseed, sorghum and palm oil, but it can be extended to all living organisms currently in existence, or to their metabolic by-products, which are a part of the carbon cycle.

Techniques and researches to produce bioenergy from existing biomass have been conducted mainly to replace gasoline and diesel for transportation. To replace gasoline, biobutanol was produced by fermenting sugarcane, corn, and the like.

However, there is a limit to the stability of conventional bio-butanol compared to petroleum-based fuels such as water contamination and phase separation problems. In particular, when biobutanol is used as a fuel additive, there is a problem that the phase separation phenomenon is significantly larger than other fuel additives.

The fossil fuel or petroleum-based fuel can be further improved in physical / chemical stability of fossil fuels such as renewable fuels such as bio-alcohol and conventional gasoline, The research on the compound fuel additives is needed.

Korean Patent Publication No. 10-2013-0029314 (March 23, 2013)

An object of the present invention is to provide a method and apparatus for delaying the phase separation phenomenon even under harsh environmental conditions such as high humidity, low temperature, and long-term storage, and also having a lower freezing point to prevent freezing in winter, And to provide a fuel composite additive excellent in effect.

Another object of the present invention is to provide a fuel composite additive which can be used as a beverage, for example, so as not to cause a fatal problem to be used in applications other than fuel, by implementing the above-mentioned effects.

The fuel composite additive according to the present invention is characterized by comprising: biobutanol; A ketone-based compound containing any one or two or more selected from methyl ethyl ketone, methyl isopropyl ketone, methyl isobutyl ketone and 5-methyl-3-heptanone; And an ether compound containing at least one selected from methyl tert-butyl ether and ethyl tert-butyl ether.

The fuel additive according to an exemplary embodiment of the present invention may include 10 to 100 parts by weight of the ketone compound and 0.1 to 20 parts by weight of the ether compound based on 100 parts by weight of the biobutanol.

The fuel composite additive according to an example of the present invention may further comprise a wort butanol.

The fuel composite additive according to an exemplary embodiment of the present invention may include 10 to 100 parts by weight of the wort butanol based on 100 parts by weight of the biobutanol.

The fuel composite additive according to an example of the present invention may further include denatridinium benzoate.

The fuel composite additive according to an embodiment of the present invention may include 10-100 parts by weight of the buthart butanol and 0.001-1 parts by weight of the denaturation benzoate with respect to 100 parts by weight of the biobutanol.

In one embodiment of the present invention, the ketone-based compound is at least one compound selected from the group consisting of methyl ethyl ketone, methyl isopropyl ketone and methyl isobutyl ketone, and at least one C4-C6 ketone compound selected from the group consisting of 5-methyl- . ≪ / RTI >

In one embodiment of the present invention, the ketone-based compound may include 5 to 100 parts by weight of the 5-methyl-3-heptanone based on 100 parts by weight of the C4-C6 ketone-based compound.

The fuel composite additive according to the present invention can be included in the fuel.

In one example of the present invention, the fuel may be a gasoline fuel or an alcohol fuel.

The fuel composite additive according to the present invention has the effect of significantly delaying the phase separation phenomenon even under harsh environmental conditions such as high humidity, low temperature, and long-term storage, has a lower freezing point, There is an advantage in that the cleaning effect on the impurities fixed in the engine is excellent.

Further, the fuel composite additive according to the present invention has the effect of making it impossible to be used as a beverage, for example, in order to prevent fatal problems which are used in applications other than fuel, while implementing the above-mentioned effects.

Even if the effects are not explicitly mentioned in the present invention, the effects described in the specification anticipated by the technical features of the present invention and their inherent effects are treated as described in the specification of the present invention.

Hereinafter, the fuel composite additive according to the present invention will be described in detail.

It will be apparent to those skilled in the art that the technical and scientific terms used herein may have other meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. Descriptions of the blurred notice function and configuration are omitted.

The singular forms of the terms used in the present invention can be interpreted to include plural forms unless otherwise indicated.

Unless specifically stated in the present invention, the unit of% used unclearly means% by weight.

The fuel composite additive according to the present invention is characterized by comprising: biobutanol; One or two or more selected from the group consisting of methyl ethyl ketone, methyl isopropyl ketone, methyl isobutyl ketone and 5-methyl-3-heptanone. A ketone-based compound; And an ether compound containing at least one selected from methyl tert-butylether and ethyl tert-butylether.

The term 'biobutanol' as used in the present invention refers to conventional biobutanol which is known to be used as a fuel. Specifically, butanol prepared for use as a fuel from biomass, substantially contains n-butanol or n-butanol as a main component Based mixture.

The ketone-based compound and the ether-based compound in the fuel composite additive are essential components for improving the phase separation delay characteristic and the engine washing property, and are characterized by delaying the phenomenon of phase separation into the oil layer and the water layer according to the penetration or mixing of water effective. Specifically, when a compound of one of the ketone compound and the ether compound is used alone in the fuel composite additive according to the present invention, the phase separation retarding property is slightly reduced. However, as in the present invention, the ketone compound and the ether compound When both are used, the phase separation delay characteristic is greatly improved, and at the same time, a remarkable effect in which the engine cleaning characteristic is improved is realized. In addition, as the components are mixed, freezing point descent is maximized, so that it is possible to minimize freezing even in a very low temperature environment such as a winter season. Further effects can be further improved by including other components to be described later.

The fuel composite additive according to an exemplary embodiment of the present invention is not limited in its composition ratio, but it is preferable that 10 to 100 parts by weight of the ketone compound is added to 100 parts by weight of the biobutanol, The ether compound may be contained in an amount of 0.1 to 20 parts by weight, more preferably 20 to 80 parts by weight of the ketone compound and 1 to 7 parts by weight of the ether compound. However, this is a preferred example, and the present invention is not limited thereto.

More preferably, the ketone-based compound includes at least one selected from among methyl ethyl ketone, methyl isopropyl ketone and methyl isobutyl ketone, and at least one C4-C6 ketone based compound and 5-methyl-3-heptanone good. Specifically, when the C4-C6 ketone compound and 5-methyl-3-heptanone are used together in the ketone compound, they may be more effective in inhibiting the phase separation phenomenon. That is, the combination of the relatively low-carbon-series ketone-based compound and the high-carbon-numbered ketone-based compound minimizes the total free energy of the system and allows dissolved water to stably exist in the form of a micelle, The phase separation phenomenon can be remarkably reduced even under harsh environmental conditions such as humidity, low temperature, and long term storage.

When the fuel composite additive according to an exemplary embodiment of the present invention includes the C4-C6 ketone compound and 5-methyl-3-heptanone, the composition ratio thereof is not particularly limited, The ketone-based compound may include 5 to 100 parts by weight, preferably 10 to 60 parts by weight of the 5-methyl-3-heptanone based on 100 parts by weight of the C4-C6 ketone-based compound. However, this is a preferred example, and the present invention is not limited thereto.

The fuel composite additive according to an exemplary embodiment of the present invention may further include tert-butanol or denatonium benzoate, and preferably includes both of buthartol and denatomium benzoate. May be preferred. In particular, when the fuel composite additive includes both tartobutanol and denatomium benzoate, the phase separation delay characteristic and the engine washing property can be remarkably improved as compared with the case where they are separately contained. Both steric hindrance characteristics and engine washing characteristics can be remarkably improved by mixing the steric hindrance of buthalt with dinatronium benzoate present in a salt state.

In addition, the fuel additive according to an embodiment of the present invention has an effect of preventing the fuel additive from being used for purposes other than fuel, due to the peculiar flavor and taste when the additive includes denatonium benzoate.

In the case where the fuel additive according to the present invention comprises talc butanol, the composition ratio thereof is not particularly limited, and may be, for example, 10 to 100 parts by weight, preferably 15 to 100 parts by weight, 60 parts by weight. However, this is a preferred example, and the present invention is not limited thereto.

In the case where the fuel composite additive according to an embodiment of the present invention includes denatonium benzoate, the composition ratio thereof is not particularly limited. For example, 0.001 to 1 part by weight of the denaturated benzoate may be added to 100 parts by weight of the biobutanol, , Preferably 0.001 to 0.5 part by weight. However, this is a preferred example, and the present invention is not limited thereto.

In the case where the fuel composite additive according to an embodiment of the present invention comprises tartobutanol and denatridium benzoate, the composition ratio thereof is not limited to a great extent. However, in order to realize the above-mentioned effects, 10 to 100 parts by weight of the butartan butanoate and 0.001 to 1 part by weight of the denaturated benzoate, preferably 15 to 60 parts by weight of the wort butanol and 0.001 to 0.5 part by weight of the denaturated benzoate are added to 100 parts by weight of biobutanol, Section. However, this is a preferred example, and the present invention is not limited thereto.

The fuel additive according to an exemplary embodiment of the present invention may further include n-butanol in some cases, and the content thereof may be appropriately adjusted by those skilled in the art.

The fuel composite additive according to the present invention may be used in various fuels such as biofuels, fossil fuels, etc., but it may be preferably added to alcoholic fuels or gasoline fuels.

EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples. However, the present invention is described in more detail with reference to the following Examples. However, the scope of the present invention is not limited by the following Examples.

 Each of the components was sufficiently stirred so as to satisfy the components and contents in Table 1 below to prepare a fuel composite additive.

 Each of the components was sufficiently stirred so as to satisfy the components and contents in Table 1 below to prepare a fuel composite additive.

 Each of the components was sufficiently stirred so as to satisfy the components and contents in Table 1 below to prepare a fuel composite additive.

 Each of the components was sufficiently stirred so as to satisfy the components and contents in Table 1 below to prepare a fuel composite additive.

 Each of the components was sufficiently stirred so as to satisfy the components and contents in Table 1 below to prepare a fuel composite additive.

 Each of the components was sufficiently stirred so as to satisfy the components and contents in Table 1 below to prepare a fuel composite additive.

[Comparative Example 1]

 Each of the components was sufficiently stirred so as to satisfy the components and contents in Table 1 below to prepare a fuel composite additive.

[Comparative Example 2]

 Each of the components was sufficiently stirred so as to satisfy the components and contents in Table 1 below to prepare a fuel composite additive.

Ingredient (kg) B-1 B-2 K-1 K-2 K-3 K-4 E-1 E-2 D Example 1 6.8 - 1.0 1.0 1.0 - 0.2 - Example 2 9.5 - - - - 0.4 0.1 - Example 3 6.2 - 1.0 1.0 1.0 0.5 0.2 0.1 - Example 4 6.2 2.0 0.5 1.0 1.0 1.0 0.2 0.1 - Example 5 6.8 - 1.0 0.5 0.5 0.5 0.2 0.1 0.0004 Example 6 6.6 2.0 1.0 0.5 0.5 0.5 0.2 0.2 0.0005 Comparative Example 1 9.5 - - - - - 0.3 0.2 - Comparative Example 2 8 - 0.5 0.5 0.5 0.5 - - - B-1: Biobutanol (normal butanol)
B-2: Tartobutanol
K-1: methyl ethyl ketone
K-2: methyl isopropyl ketone
K-3: methyl isobutyl ketone
K-4: 5-Methyl-3-heptanone
E-1: Methyl tallow butyl ether
E-2: Ethyl tallow butyl ether
D: Denatonium Benzoate

Evaluation of phase separation delay characteristics

The fuel composite additive of each of Examples 1 to 6 and Comparative Examples 1 and 2 was tested by the following method to evaluate the retardation of phase separation.

Specifically, each fuel composite additive was added to each 100 ml water-insulated tube and water (0.05%, 0.1%, 0.15%, 0.20%, 0.25%, 0.30%, 0.35%, 0.40%, 0.45% ) Were further added, and the mixture was shaken vigorously to intrude the moisture. Then, the mixture was allowed to stand for 10 minutes to identify the layer to be changed. Finally, to confirm the distinct layer separation, the scale of the layer generated in the test tube was measured by centrifugation at 20 ° C and 1,500 rpm for 10 minutes.

The phase separation suppression characteristic (ml) Example 1 0.31 Example 2 0.25 Example 3 0.16 Example 4 0.15 Example 5 0.13 Example 6 0.09 Comparative Example 1 0.40 Comparative Example 2 0.38

As shown in Table 2, in the case of Comparative Example 1 and Comparative Example 2 in which only one of the ketone compound and the ether compound was used singly, the phase separation retarding property was the worst, while the ketone compound and the ether compound In the case of Embodiments 1 to 6, the phase separation delay characteristic was remarkably improved.

(3-heptanone) in which all of these sequences were used, compared with the case of Example 1 and Example 2 where only one of the C4-C6 ketone-based compound and the C8 ketone-based compound In the case of Example 6, the phase separation delay characteristic was higher.

From the case of Example 3 and Example 4 in Table 2, it can be seen that the homo-butanol alone does not greatly affect the phase separation delay characteristic. From the results of Example 5 and Example 6 in Table 2, it can be seen that the use of denatridium benzoate together with wort butanol significantly improves the phase separation delay characteristic. These results suggest that the three - dimensional properties of the buthart butanol and the salt properties of the denatridium benzoate together act together to greatly inhibit the phase separation of the composition.

Evaluation of engine cleaning properties

Each of the fuel composite additives of Examples 1 to 6 and Comparative Example 1 and Comparative Example 2 was added to gasoline in an amount of 1% by weight.

Specifically, the experiment was carried out in a gasoline engine test method according to the method described in reference SAE # 922184 (1992) published by Sosiety for Automotive Engineers (SAE). At this time, each experiment was performed for 5 hours under an engine speed of 3,000 rpm and 2/3 of the maximum load. At the beginning of each experiment, the engine was fitted with a new injector and the release of each injection was measured on each needle lift prior to installation. At the completion of each experiment, the injections were separated and the amount of release during the same needle lift was measured. The efficiency of each fuel composite additive tested was compared as percent residue release, which was calculated by Equation 1 as follows. The results are shown in Table 2 below, and the higher the emission amount, the better the engine cleaning effect.

[Formula 1]

Residue Emission (%) = (Mean Emission Rate of Injection / Average Emission Rate of New Injection at Test Completion) × 100

Residue Emission (%) Needle lift (mm) 0.1 0.2 0.3 0.4 0.5 Gasoline alone 13 23 29 39 51 Example 1 52 56 61 69 75 Example 2 48 53 58 65 73 Example 3 49 54 59 67 76 Example 4 52 57 62 70 78 Example 5 58 64 72 79 85 Example 6 71 76 85 91 96 Comparative Example 1 42 45 49 55 64 Comparative Example 2 44 47 51 58 67

As shown in Table 3, in the case of Comparative Example 1 and Comparative Example 2 in which only one of the ketone-based compound and the ether-based compound was used singly, the engine cleaning properties were the worst, while the ketone- and ether- In the case of the used examples 1 to 6, the engine washing characteristics were remarkably improved.

As in the case of Example 4, the addition of buthtool alone did not have a significant effect on the engine washing characteristics, but the addition of the dinatungium benzoate alone enhanced the engine washing characteristics, It can be seen from Table 3 that when humbanoate and tulutobutanol are used together, the engine washing characteristics are significantly improved as compared with the case where the dinatinium benzoate is added alone.

Claims (10)

Biobutanol;
A ketone-based compound containing any one or two or more selected from methyl ethyl ketone, methyl isopropyl ketone, methyl isobutyl ketone and 5-methyl-3-heptanone; And
An ether compound containing at least one selected from methyl tert-butyl ether and ethyl tert-butyl ether;
≪ / RTI > The method according to claim 1,
Wherein the fuel composite additive comprises 10 to 100 parts by weight of the ketone compound and 0.1 to 20 parts by weight of the ether compound based on 100 parts by weight of the biobutanol. The method according to claim 1,
Wherein the fuel composite additive further comprises tapped butanol. The method of claim 3,
Wherein the fuel composite additive comprises 10 to 100 parts by weight of the wort butanol based on 100 parts by weight of the biobutanol. The method of claim 3,
Wherein the fuel composite additive further comprises denatridium benzoate. 6. The method of claim 5,
Wherein the fuel composite additive comprises 10 to 100 parts by weight of the wort butanol and 0.001 to 1 part by weight of the denaturated benzoate based on 100 parts by weight of the biobutanol. The method according to claim 1,
Wherein the ketone-based compound comprises any one or two or more C4-C6 ketone-based compounds selected from methyl ethyl ketone, methyl isopropyl ketone and methyl isobutyl ketone, and 5-methyl-3-heptanone. 8. The method of claim 7,
Wherein the ketone-based compound comprises 5 to 100 parts by weight of the 5-methyl-3-heptanone based on 100 parts by weight of the C4-C6 ketone-based compound. A fuel comprising the fuel composite additive of any one of claims 1 to 8. 10. The method of claim 9,
Fuel which is gasoline fuel or alcohol fuel.