KR20190024512A - Blending fuel composition comprising gel-type alcohol fuel and solid fuel and producing method of blending fuel - Google Patents

Abstract

The present invention relates to a blended fuel composition and a method for manufacturing the blended fuel, wherein the blended fuel composition comprises 50-90 wt% of gel-type alcohol fuel and 5-50 wt% of at least one solid fuel selected from charcoal, chaff, wood, petroleum coke, coal, graphite, and lignite. In the blended fuel of the present invention, gel-type alcohol fuel having a rapid warm-retaining effect by generating convection heat during combustion and solid fuel having an efficient heat transfer effect and a continuous warm-retaining effect by generating radiant heat are mixed and used, thereby being excellent in safety, storability, combustibility, calorific value, ease of handling and use, non-leaking properties, and gel formability, having long-term combustion, and being excellent in heat transfer performance.

Description

TECHNICAL FIELD [0001] The present invention relates to a mixed fuel composition including a gel-type alcohol fuel and a solid fuel, and a method for producing a blended fuel,

The present invention relates to a mixed fuel composition and a method for producing a mixed fuel, and more particularly, to a method for producing a mixed fuel composition and a mixed fuel, Forming ability, heat transfer performance and the like, which can be burned for a long time, and a method for producing the same.

Conventional alcohol fuels have various problems such as toxic gas generated due to strong volatility, low storage stability, short combustion duration, and a high risk of fire due to careless handling during combustion.

Although paraffinic solid fuels have been used to replace such liquid alcohol fuels, the paraffinic solid fuels also have a high risk of fire, such as liquid alcohol, when some of the components are liquefied when they are ignited or spilled, There is a problem that its use is limited.

Gelled alcohols made by gelation of alcohol are more fluid than solid fuel and have lower fluidity than liquid fuel, so that the risk of fire is low because the fuel is not easily leaked even if the container is broken, handled carelessly or spills. Therefore, the gel-type alcohol fuel is widely used because it can improve the problems of conventional liquid fuel or solid fuel to some extent.

However, since the gel type alcohol fuel is relatively short in combustion time of less than 10 hours based on a 20-liter container and convective heat generated when the gel-like alcohol is burned is used, heat transfer ability is limited only by convection heat. Therefore, when using gelled alcohol fuel, it is necessary to change the fuel in the middle when long warming is needed and other additional warming means may be needed. Particularly, in the case of constructing buildings in winter, when concrete curing or finishing work is required, it is generally necessary to maintain efficient and continuous warming from 5:00 pm to 8:00 am the next day. The gel- Since the time is short, it is necessary to replace the fuel in the middle. These fuel replacements result in additional manpower deployments, resulting in higher labor costs and the risk of accidents due to additional work done at night.

As a method for producing a conventional gel-type alcohol fuel, a method using a high-grade fatty acid salt (U.S. Patent No. 4,436,525, JP-A-50-36841 and JP-A-51-8961), a method using dibenzylidene sorbitol (Japanese Patent Publication No. 61-195194), a method using nitrocellulose (Korea Patent No. 73-131), and a method using an acrylic acid polymer (Japanese Patent Laid-Open Publication No. 60-44344).

Gelled alcohol fuels prepared using higher fatty acid salts or dibenzylidene sorbitol are almost solid. In particular, in the case of high-grade fatty acid salts, since the metal content is high, it is influenced by the moisture in the atmosphere, the required calorie can not be obtained and it is estimated that the practical value is low due to a large amount of ash after combustion.

In the case of a method for producing a gel-type alcohol fuel using nitrocellulose, nitrocellulose itself is extremely dangerous because it is an explosive sensitive to heating or impact. In summer, there is a risk of ignition or explosion by decomposition as well as natural decomposition Extreme caution should be used when manufacturing or as fuel.

Acrylic acid polymers are used as raw materials for cosmetics and are used in the manufacture of gel-type fuels in that they form good viscous gels. However, when a gel-type alcohol fuel is produced using an acrylic acid polymer, there is a problem that a simple organic amine base having a relatively low molecular weight such as ammonia, triethanolamine, diethylamine and the like must be used as a neutralizing thickener. These low molecular weight, simple organic amine neutralizing thickeners are poisonous and irritating, and the steam irritates the skin and causes inflammation. Therefore, it is difficult to pay attention to the preparation of gel-type alcohol fuels and the handling of such fuels.

In addition, in the case of a gelled fuel mainly composed of methanol lacking heat, when the gel is made by mixing two or more alcohols having a large number of carbon atoms in order to increase the heat amount, when a low molecular weight simple alkylamine is added as a neutralizing thickener, There is a problem that a part of the produced gel is destroyed at a high temperature.

Generally, in order to maintain a gel having a high viscosity when forming an alcohol-type gel fuel composition, gel composition macromolecular compounds such as hydroxyethyl cellulose, hydroxypropyl cellulose, cellulose gum, acrylic polyvalent acid polymer and sodium stearate are added to 1 To 3% by weight.

In order to form the gel-type fuel composition, the dispersion of the polymer compound must be kept at a maximum. For this purpose, a neutralizing agent such as inorganic alkali or ammonia water such as sodium hydroxide, sodium carbonate, potassium hydroxide or potassium carbonate or organic alkali such as triethanolamine A method of neutralization is proposed. When the alcohol concentration is maintained at 90% or more, the stability of the dispersed phase is increased by using an organic alkali having a polymer chain such as polyoxyethylene alkylamine.

Korean Patent Registration No. 0156372 discloses a method of securing a stable viscosity and a storage stability by using a polyoxyethylene alkylamine as a neutralization stabilizer in an acrylic polyvalent acid polymer and a high concentration of an alcohol fuel composition. However, even when the alcohol concentration is over 95%, especially over 97%, the storage stability of the gel-type highly viscous alcohol fuel composition is improved and the gel composition is maintained within the range of 1%, especially 0.5% For stabilization, the use of a more stable polymer dispersant is required.

In addition, UK Patent No. 2,401,374 discloses that various additives are added to improve the combustion stability of a gel-type highly viscous fuel composition and reduce the risk of fire and burn while forming a bright flame and lowering the flowability. However, even in this case, the combustion stability is lowered, and the high-viscosity transparent fuel composition becomes unstable and the polymer composition can be precipitated.

Korean Patent Publication No. 1993-0010572 Korea Patent No. 10-0156372 Korean Patent Registration No. 10-1111442 Korean Patent Registration No. 10-1315993 Korean Patent Registration No. 10-1535603 Korean Patent Publication No. 10-2017-0069544 Korean Patent Laid-Open No. 10-2009-0112275 Korean Patent Publication No. 10-1999-0031109

In order to solve the above problems, the present invention provides a gel-type alcohol fuel which is excellent in safety, storage stability, combustibility, calorific value, ease of handling and use, non-leaking property, gel forming ability, And a method for producing the same.

Particularly, it is an object of the present invention to provide a mixed fuel including a gel-type alcohol fuel and a solid fuel, which can prolong a relatively short combustion time, which is a problem of the gel-type alcohol fuel, .

It is another object of the present invention to provide a mixed fuel composition which can form, maintain and stabilize a gel, and can maintain and stabilize the gel well even in a state containing a solid fuel, and a method for producing the same.

According to an aspect of the present invention,

50 to 95% by weight of a gel alcohol fuel having a pH of 6 to 9,

5 to 50% by weight of a solid fuel having at least one shape selected from the group consisting of powder, granule, and block, at least one selected from the group consisting of coal, rice husks, wood, petro coke, coal, graphite and lignite do.

In the composition, it is preferable that the solid fuel is contained in the gel-like alcohol fuel in a sealed state in the combustible packaging container.

In the composition, the gel-type alcohol fuel preferably contains 70 to 99% by weight of alcohol, 0 to 29.5% by weight of water and 0.5 to 1% by weight of a carboxyvinyl polymer.

In the above composition, it is preferable that the alcohol is a mixture of one kind or two or more kinds selected from among alcohols having 1 to 5 carbon atoms.

In the above composition, the carboxyvinyl polymer is preferably a copolymer or cross-linked polymer of polyacrylic acid as a polymer having a molecular weight ranging from 900,000 to 4,500,000.

In the composition, the gel-type alcohol fuel preferably further comprises 0.5 to 3% by weight of an alkanolamine based on 100% by weight of the composition comprising alcohol, water and a carboxyvinyl polymer.

In the above composition,

Triisopropanolamine, or

A compound produced by reacting 2 to 4 moles of propylene oxide with 1 mole of monoethanolamine or triisopropanolamine, or a mixture comprising an end product and an intermediate product of the reaction.

In the composition, the gel-type alcohol fuel preferably further comprises 0.0001 to 0.005% by weight of a coloring agent based on 100% by weight of the gel-type alcohol fuel.

Further, according to the present invention,

Preparing a gelled alcohol fuel having a pH of 6 to 9 by gelation of the alcohol; And

A solid fuel having a shape of at least one selected from the group consisting of powdery, granular and massive, at least one selected from the group consisting of charcoal, rice husk, wood, petro coke, coal, graphite and lignite, By weight based on the total weight of the mixed fuel.

In the above production method, it is preferable that the solid fuel is sealed in a flammable packaging container.

Further, according to the present invention,

5 to 50% by weight of a solid fuel having at least one selected from the group consisting of coal, rice husks, wood, petroleum coke, coal, graphite and lignite, ; And

And gelling the mixed solid fuel and the alcohol in the alcohol fuel composition.

In the above production method, it is preferable that the solid fuel is sealed in a flammable packaging container.

The mixed fuel of the present invention generates convection heat during combustion to generate gaseous alcohol fuel having a rapid warming effect and radiant heat to generate a heat transfer effect and a solid fuel having a sustained warming effect. Thus, safety, storage stability, combustibility, Ease of handling and use, non-leaking property, gel-forming ability, long-time combustion, and excellent heat transfer performance. Especially, it is possible to burn for 12 hours or longer for 20 ℓ containers, and it has excellent heat transfer performance, which is very economical.

Therefore, the mixed fuel of the present invention can be used as fuel in various fields such as concrete curing, camping, cooking, and the like.

The blended fuel composition of the present invention comprises a gel alcohol fuel and at least one solid fuel selected from charcoal, rice husk, wood, petro coke, coal, graphite and lignite.

Gaseous alcohol fuels in mixed fuels generate convection heat during combustion and have a rapid warming effect. Solid fuels generate radiant heat and have efficient heat transfer effect and continuous warming effect.

The composition preferably contains 50 to 95% by weight of the gel alcohol fuel and 5 to 50% by weight of the solid fuel, more preferably 70 to 95% by weight of the gel alcohol fuel and 5 to 30% by weight of the solid fuel. It is particularly preferable to mix the gel-type alcohol fuel and the solid fuel at a weight ratio of 4: 1.

The gel-type alcohol fuel may be manufactured according to a known method for producing a gel-type alcohol fuel, or may be a commercially available gel-type alcohol fuel.

The gel-type alcohol fuel of the present invention preferably has a pH value of 6 to 9.

It is more preferable that the gel-type alcohol fuel contains 70 to 99% by weight of alcohol, 0 to 29.5% by weight of water and 0.5 to 1% by weight of carboxyvinyl polymer.

The alcohol may be a mixture of one or more selected from lower alcohols having 1 to 5 carbon atoms. Examples of such alcohols include methanol, ethanol, propanol, isopropanol, butanol, and pentanol. Although it is common to use methanol in terms of cost, ethanol may be used depending on the purpose of use. The alcohol is contained in the composition for gel-type alcohol fuel in an amount of 70 to 99% by weight, preferably 80 to 99% by weight, more preferably 90 to 99% by weight.

Water forms and maintains gel form, and is used to control viscosity and burn rate. Water may be included in the composition for a gel-type alcohol fuel in an amount of 0 to 29.5 wt%, preferably 0 to 19.5 wt%, more preferably 1 to 6 wt%. If the amount of water is too much, the amount of alcohol may be decreased and the calorific value may be decreased. If the amount of water is too small, it affects gelation and it is difficult to maintain the shape of the gel.

Carboxyvinyl polymer is the basic substance that finally forms a gel in a gel alcohol fuel. The carboxyvinyl polymer is dispersed in a mixture of alcohol, water or alcohol and water to increase the viscosity to act as a gelling agent to form a gel. Depending on the content, a gel having a high viscosity can be formed, thereby improving the flowability, It plays an important role.

As the carboxyvinyl polymer, it is preferable to use a copolymer or cross-linked polymer of polyacrylic acid as a polymer having a molecular weight in the range of 900,000 to 4,500,000. When the content of the carboxyvinyl polymer is too low, the flowability of the gel-type alcohol fuel is high and gel formation may be difficult, and the content of the carboxyvinyl polymer may be too high. If it is high, it may form a gel having a too high viscosity, or impurities may be generated at the time of combustion.

The gelled alcohol fuel may further include 0.5 to 3% by weight of an alkanolamine based on 100% by weight of the composition comprising alcohol, water and a carboxyvinyl polymer.

The alkanolamine is a neutralizing thickener that forms a gel by neutralizing a carboxyvinyl polymer with a carboxy group in a composition for a gel-type alcohol fuel. The alkanolamine is preferably a mixture of at least one selected from tertiary amines containing a hydroxy group in a branched alkyl group having 8 to 14 carbon atoms. Representative examples include triisopropanolamine and the like.

The alkanolamine is preferably produced by reacting 1 mole of triisopropanolamine or monoethanolamine with 2 to 4 moles of propylene oxide, but is not limited thereto. When the alkanolamine is prepared by such a method, the resulting single alkanolamine compound may be isolated and purified and used. However, the intermediate compound produced in the course of the reaction, the combination of the other hydroxyl groups of the compound having a polyhydric hydroxy group with the monoethanolamine But also a mixture containing all of by-products such as a compound. The mixture produced through the reaction may be used alone or in combination with another alkanolamine or a mixture of other alkanolamine forming reactions.

Since the alkanolamine, i.e., the tertiary amine having a hydroxy group in the branched alkyl group having 8 to 14 carbon atoms, is small in molecular size, it does not have steric hindrance when it carries out the neutralization reaction with the carboxyl group of the carboxyvinyl polymer, Therefore, the amount of the compound to be used is smaller than that of the compound having a large molecular size. Also, the gel formed after the neutralization reaction is efficiently dispersed due to the branched alkyl group, and the hydroxyl group interacts with the alcohol, thereby lowering the volatility of the gel alcohol fuel and maintaining the long-term stability.

The alkanolamine is preferably contained in an amount of 0.5 to 3% by weight based on 100% by weight of the composition comprising alcohol, water and a carboxyvinyl polymer, more preferably 80 to 180 parts by weight based on 100 parts by weight of the carboxyvinyl polymer . If the amount of the alkanolamine in the composition is too small, gel formation is difficult and the gel-type alcohol fuel becomes acidic, resulting in deterioration of long-term storage stability and corrosion of the metal container. Conversely, if too much, gel formation is destroyed, There is a disadvantage in that residues during combustion are increased due to the use of allamines.

When the alkanolamine is used as a neutralizing thickener, it is possible to maintain a suitable viscosity and gel form even when the water content is 5 wt% or less, and even if the water is not contained at all, the gel form can be maintained.

The gel-type alcohol fuel may further include a coloring agent. As the colorant, an aromatic compound having a boiling point of 220 DEG C or lower is usually used at normal pressure. Examples of the colorant include alkylbenzenes such as toluene, xylene, trimethylbenzene and the like; Phenyl ethers such as methoxybenzene and ethoxybenzene; Esters such as methyl benzoate and phenyl acetate, and the like. The colorant causes the flame to have a color when the gelled alcohol fuel is burned, so that the combustion can be easily confirmed. The colorant is preferably contained in an amount of 0.0001 to 0.005% by weight based on 100% by weight of the gel-type alcohol fuel. When the content of the colorant is too small, the coloring effect is insignificant, and when the content is too large, the combustion efficiency may be lowered.

The gel-type alcohol fuel of the above composition is prepared by mixing and stirring 70 to 99% by weight of alcohol, 0 to 29.5% by weight of water and 0.5 to 1% by weight of carboxyvinyl polymer. In the case of additionally containing an alkanolamine, a gel-type alcohol fuel can be prepared by mixing and stirring 0.5 to 3% by weight of an alkanolamine with respect to 100% by weight of the composition comprising the alcohol, water and a carboxyvinyl polymer.

When a colorant is used, 0.0001 to 0.005% by weight of a colorant is mixed with 100% by weight of the gel alcohol fuel, and the mixture is stirred. When an alkanolamine is used, it is preferable to mix the colorant before mixing the alkanolamine.

One example of a preferred method of producing a gel-type alcohol fuel is a method comprising mixing and stirring 70 to 95% by weight of alcohol, 0 to 25.5% by weight of water and 0.5 to 1% by weight of carboxyvinyl polymer, By weight of a colorant in an amount of 0.0001 to 0.005% by weight based on the total weight of the dispersion and stirring the mixture, and adding a mixture of 1 to 4% by weight of water and 0.5 to 3% by weight of an alkanolamine to the dispersion in which the colorant is completely dissolved or dispersed And stirring and stirring.

As the solid fuel, at least one selected from charcoal, rice husk, wood, petro coke, coal, graphite and lignite is used.

The solid fuel may be at least one selected from the group consisting of powders, granules and masses, and it is more preferably used as a mass. It is particularly preferred to use bulk charcoal.

The solid fuel may be directly mixed with a gel-type alcohol fuel or may be mixed with a gel-type alcohol fuel in a sealed state in a flammable packaging container. Flammable packaging containers for solid fuel can be made of various kinds of materials such as vinyl, vinyl coated paper, waterproof fiber, and flammable and waterproof materials.

It is desirable to reduce the direct contact time between the solid fuel and the gel-type alcohol fuel, since the gel-type alcohol fuel may change back to the liquid state when the solid fuel and the gel-type alcohol fuel are in direct contact with each other. Accordingly, most preferably, the solid fuel is put in a flammable packaging container and mixed with the gel-type alcohol fuel in a sealed state.

The gelled alcohol fuel and the solid fuel are put into a sealed product container to produce a mixed fuel product. A sealed product container can be a conventional sealed container used for packaging fuel, and a representative example is a 20ℓ can container.

The mixed fuel composition of the present invention is prepared by mixing 50 to 95% by weight of a gel alcohol fuel and 5 to 50% by weight of a solid fuel, more preferably 70 to 95% by weight of a gel alcohol fuel and 5 to 30% by weight of a solid fuel .

The blended fuel of the present invention can be prepared by mixing the gel-type alcohol fuel with the solid fuel, or by mixing the alcohol fuel composition with the solid fuel and then gelling.

That is, in the mixed fuel of the present invention,

A step of gelling an alcohol to produce a gel-type alcohol fuel; And 50 to 95% by weight of the gel alcohol fuel and 5 to 50% by weight of at least one solid fuel selected from charcoal, rice husk, wood, petroleum coke, coal, graphite and lignite, or

Mixing 5 to 50% by weight of at least one solid fuel selected from charcoal, rice husks, wood, petro coke, coal, graphite and lignite with 50 to 95% by weight of a composition for a gel alcohol fuel; And gelling the alcohol in the mixed solid fuel and the composition for gel alcohol fuel.

The mixed fuel is put into a container and sealed to produce a mixed fuel packaged in the container.

As a method of producing a mixed fuel packed in a container by mixing the gel-type alcohol fuel and the solid fuel,

A method in which at least one solid fuel selected from charcoal, rice husk, wood, petroleum coke, coal, graphite and lignite is added to gelled alcohol fuel and dispersed and injected into a container using a filling machine and sealed;

It is preferable to use a method in which one or more solid fuels selected from charcoal, rice husk, wood, petro coke, coal, graphite and lignite are injected into the container before and after the gel alcohol fuel is injected into the container and sealed .

A method for preparing a gelled fuel mixture by mixing a non-gelled alcohol fuel composition with a solid fuel and then gelling the gelled fuel composition is characterized in that the composition for gelled alcohol fuel is selected from the group consisting of coal, rice husk, wood, petroleum coke, coal, It is preferable to use a method in which the mixture is mixed with a solid fuel or a mixture of two or more kinds of materials,

One preferred example of the method for producing the blended fuel of the present invention is a method for producing a blended fuel comprising a solid fuel having a shape selected from the group consisting of charcoal, rice husk, wood, petro coke, coal, graphite and lignite, Mixing and stirring 50 to 95 parts by weight of a gel alcohol fuel consisting of 70 to 95% by weight of alcohol, 0 to 25.5% by weight of water and 0.5 to 1% by weight of carboxyvinyl polymer, Mixing and agitating 0.0001 to 0.005% by weight of a colorant with respect to the total weight of gel alcohol fuel in a dispersion in which the polymer is completely dispersed after mixing; Adding a mixed solution of 1 to 4% by weight of water and 0.5 to 3% by weight of an alkanolamine to the total weight of the gel-type alcohol fuel and stirring the mixed solution after the mixing, wherein the coloring agent is completely dissolved or dispersed; And injecting and sealing the container using a filler.

In the above methods, the at least one solid fuel selected from charcoal, rice husk, wood, petro coke, coal, graphite and lignite may be sealed in a flammable packaging container.

A method of producing a blended fuel packaged in a container using solid fuel sealed in a combustible packaging container comprises the steps of providing 5 to 50 wt% of at least one solid fuel selected from charcoal, rice husk, wood, petroleum coke, coal, Sealing in a flammable packaging container; Injecting the sealed solid fuel into a container for mixed fuel; And injecting 50 to 95% by weight of the gelled alcohol fuel into the container.

[ Example ]

Hereinafter, the present invention will be described in more detail with reference to examples. The following examples illustrate the invention and are not to be construed as limiting the scope of the invention.

Production of gelled alcohols

(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine as carboxyvinyl polymer, Carbomer 940 was used as the alcohol, methanol was used as the alcohol, [(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine] was used.

< Example  1>

(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine 2.03 g (0.5% by weight) g were mixed to prepare gelled alcohol fuel.

< Example  2>

(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine 2.03 (5% strength by weight), 252 g (84 weight%) of methanol, 46.5 g g were mixed to prepare gelled alcohol fuel.

< Example  3>

(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine 2.68 g (0.5% by weight) g were mixed to prepare gelled alcohol fuel.

< Example  4>

(2-hydroxy-ethyl) -bis- (2-hydroxy-ethyl) -amine was obtained by using 285 g (95% by weight) of methanol, 13.5 -Propyl) -amine [(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine] were mixed to prepare gelled alcohol fuel.

< Example  5>

(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine 2.03 g (0.5 wt.%) g were mixed to prepare gelled alcohol fuel.

< Example  6>

(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine 2.73 g (0.7% by weight) g were mixed to prepare gelled alcohol fuel.

< Example  7>

(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine 3.12 &lt; tb &gt; ______________________________________ &lt; tb &gt; g were mixed to prepare gelled alcohol fuel.

< Example  8>

(2-hydroxy-ethyl) -bis- (2-hydroxy-propyl) -amine 3.84 g (1.0 wt.%) g were mixed to prepare gelled alcohol fuel.

Manufacture of mixed fuels

< Example  9>

Charcoal was used as the solid fuel and gel alcohol fuel of Example 2 was used as the gel alcohol fuel.

3 kg of supercharged charcoal was put into a 20 liter can container, and 12 kg of the gel alcohol fuel of Example 2 was added to prepare a total of 15 kg of mixed fuel.

The massive char is a mass having a volume in the range of 11 to 120 mL (the shape of one charcoal used in the embodiment is 22 mL in volume, circular: 6 cm in diameter and 3 cm in height) and circular in shape and oval in side view.

< Example  10>

As the solid fuel, a massive charcoal was used, and as the gel alcohol fuel, the gel alcohol fuel of Example 2 was used.

3 kg of massive charcoal was packed in a plastic bag. 3 kg of massive charcoal packed in a plastic bag packed in a 20 liter can container was added with 12 kg of gel alcohol fuel of Example 2 to prepare a total of 15 kg of mixed fuel.

< Example  11>

Powder type charcoal was used as a solid fuel and alcohol fuel of Example 2 was used as a gel alcohol fuel.

3 kg of powdery charcoal was packed in a plastic bag. 3 kg of powdered charcoal packed in a vinyl bag was placed in a 20-liter can container, and 12 kg of the gel alcohol fuel of Example 2 was added to prepare a total of 15 kg of mixed fuel.

< Example  12>

As the solid fuel, a massive charcoal was used, and as the gel alcohol fuel, the alcohol fuel of Example 3 was used.

3 kg of massive charcoal was packed in a plastic bag. 3 kg of massive charcoal packed in a plastic bag packed in a 20 liter can container was charged with 12 kg of gel alcohol fuel of Example 3 to prepare a total of 15 kg of mixed fuel.

< Example  13>

As the solid fuel, a massive charcoal was used, and as the gel alcohol fuel, the alcohol fuel of Example 4 was used.

3 kg of massive charcoal was packed in a plastic bag. 3 kg of massive charcoal packed in a plastic bag packed in a 20 liter can container was charged with 12 kg of gel alcohol fuel of Example 4 to prepare a total of 15 kg of mixed fuel.

< Comparative Example  1>

15 kg of the gel alcohol fuel of Example 2 was put into a 20-liter capacity can to produce a general gel alcohol fuel.

< Experimental Example  1>

The performance of the mixed fuel of the present invention was confirmed as follows.

As a sample of the present invention, the mixed fuel of Example 9 and Example 10 was used, and as the Comparative Example 1, the gel alcohol fuel obtained in Example 2 was used.

The combustion time of each fuel and the unit price per combustion time were confirmed, and the results are shown in Table 1 below.

sample Ingredients (kg) Total amount (kg) Burning time (hours) Unit price per combustion hour
(farsighted) Gel alcohol charcoal Example 9 12.0 3.0 15.0 12.0 1,833 ^* Example 10 12.0 3.0 15.0 12.0 1,834 Example 11 12.0 3.0 15.0 10.0 2,200 Example 12 12.0 3.0 15.0 11.5 1,913 Example 13 12.0 3.0 15.0 11.0 2,000 Comparative Example 1 15.0 0.0 15.0 8.5 2,353 ^{** ※} The commercial price of Example 9 is 22,000 won for 15kg product.
^※ The commercial price of Comparative Example 1 is 20,000 won for 15kg product.

As shown in the results of Table 1, when the same fuel of 15 kg was combusted, the blended fuel of the present invention burned for 3.5 hours longer than the conventional gel alcohol fuel having a combustion time of 12 hours and 8.5 hours, It is 22.1% cheaper.

The mixed fuel of the present invention is excellent in safety, storage stability, combustibility, calorific value, ease of handling and use, soapability and gel-forming ability, long burning time, excellent heat transfer performance, And the like. In addition, when the powdered solid fuel is used, the combustion time is slightly reduced, and the combustion time is reduced even when the alcohol content of the gel-type alcohol fuel is increased.

Claims (12)

50 to 95% by weight of a gel alcohol fuel having a pH of 6 to 9,
And 5 to 50% by weight of a solid fuel having at least one shape selected from the group consisting of a powder, a granular phase and a mass, and at least one selected from the group consisting of coal, rice husks, wood, petroleum coke, coal, graphite and lignite. The method according to claim 1,
Wherein the solid fuel is contained in the gelled alcohol fuel in a sealed state in a flammable packaging container. The method according to claim 1,
Wherein the gelled alcohol fuel comprises 70 to 99% by weight of alcohol, 0 to 29.5% by weight of water and 0.5 to 1% by weight of a carboxyvinyl polymer. The method of claim 3,
Wherein the carboxyvinyl polymer is a polymer having a molecular weight ranging from 900,000 to 4,500,000 and is a copolymer or cross-linked polymer of polyacrylic acid. 5. The method according to any one of claims 1 to 4,
Wherein the alcohol is one or a mixture of two or more members selected from alcohols having 1 to 5 carbon atoms. 6. The method of claim 5,
Wherein the gel-type alcohol fuel further comprises 0.5 to 3% by weight of an alkanolamine based on 100% by weight of the composition comprising alcohol, water and a carboxyvinyl polymer. The method according to claim 6,
Wherein the alkanolamine comprises triisopropanolamine, or
A mixture obtained by reacting 2 to 4 moles of propylene oxide with 1 mole of monoethanolamine or triisopropanolamine, or a mixture comprising an end product and an intermediate product of the reaction. 5. The method according to any one of claims 1 to 4,
Wherein the gel-type alcohol fuel further comprises 0.0001 to 0.005% by weight of a coloring agent based on 100% by weight of the gel-type alcohol fuel. Preparing a gelled alcohol fuel having a pH of 6 to 9 by gelation of the alcohol; And
A solid fuel having a shape of at least one selected from the group consisting of powdery, granular and massive, at least one selected from the group consisting of charcoal, rice husk, wood, petro coke, coal, graphite and lignite, By weight based on the total weight of the mixed fuel. 10. The method of claim 9,
Wherein the solid fuel is sealed in a flammable packaging container. 5 to 50% by weight of a solid fuel having at least one selected from the group consisting of coal, rice husks, wood, petroleum coke, coal, graphite and lignite, ; And
And gelling the mixed solid fuel and the alcohol in the alcohol fuel composition. 12. The method of claim 11,
Wherein the solid fuel is sealed in a flammable packaging container.