JP2009286992A - Emulsion fuel and method for producing it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a highly practical emulsion fuel producing high combustion energy by mixing water and a fuel oil into an emulsion at a ratio of from 7:3 to 3:7 in the stable state. <P>SOLUTION: When viscosity of water is properly regulated with a thickener derived from a plant according to the fuel oil, in both of the water-in-oil type emulsion mixing state and the oil-in-water type emulsion mixing state, uniform stirring and mixing, by which oil-water separation is stably prevented for a long period, of the fuel oil at a high water mixing ratio can be achieved by high speed shearing and the like. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an emulsion fuel in which water and fuel oil are suspended and mixed in a stable state, and a method for producing the emulsion fuel.

  In recent years, emulsion fuels in which water is mixed with fuel oil have been developed and developed as a measure to prevent global warming due to the fear of sudden rise and depletion of fossil fuels and exhaust gas during combustion.

  Emulsification of water and oil is roughly classified into a water-in-oil type and an oil-in-water type, but most of the emulsion fuel in which a small amount of water of about 20% is mixed with conventional oil is a water-in-oil type. There are few emulsion fuels in which water is stably mixed at a high mixing ratio in a water-in-oil type or an oil-in-water type.

  Originally, water has a large specific heat and is inactive, so if water is mixed in the fuel oil, combustion energy is lost and combustion becomes unstable. However, it is well known that when the water in the fuel composition reaches a boiling point or higher when it is stably and uniformly emulsified, a steam explosion phenomenon occurs and higher combustion energy can be obtained than when only oil is burned. It is considered a fact.

  However, in order to obtain the effects as described above, it is an indispensable condition to mix as much water as possible as fine water droplets in a stable state for a certain time or more in oil.

  However, most of the emulsion fuels currently being developed use special emulsifiers and additives such as surfactants to stabilize water and oil in an emulsified state, providing long-term stability. In addition, since a large amount of additive is used, it has been a problem that sufficient combustion energy cannot be obtained. (Patent No. 3776188 and Patent No. 3103923).

  Recently, a method has been developed in which water is made into a combustible by refining water clusters by separating water hydrogen bonds by resonance electromagnetic waves, electromagnetic field energy, etc., and promoting water vapor explosion. Water is activated and the surface activity is increased, making it easier to dissolve in oil. However, if a certain amount of water content is exceeded, oil-water separation tends to be accelerated, and as a measure to prevent this phenomenon, a large amount of sodium chloride Therefore, there is a concern about clogging of the liquid distribution pipe due to precipitation of the sodium chloride solution. (JP 2008-45022).

Therefore, the present invention has been made in view of the above circumstances, and by adding a trace amount of a plant-derived thickener to water to increase the viscosity of water, particularly active water, the fuel oil has a low viscosity and is easy to separate into oil and water. However, the object is to provide a method of producing an emulsion fuel that is stably suspended and mixed and water itself is a combustible.
Japanese Patent No. 3776188 Japanese Patent No. 3103923 JP2008-45022

In order to solve such problems, the present inventor applied water and fuel oil by applying that a plant-derived thickener can uniformly and stably suspend fine particles having a specific gravity difference from water. Has been found that stable emulsion mixing can be achieved, and the present invention has been made.
That is, in order to solve the above problems, the emulsion fuel production method of the present invention stabilizes oil droplets in water by adding a plant-derived thickener at a rate of about 1000 ppm to water to increase the viscosity of water. Suspended and mixed, or stably suspended and mixed water droplets in oil.

  By stirring and mixing water and fuel oil with increased viscosity at a high shear rate by the above method, the water and oil particles are made finer, for example, even when the amount of water is increased to the same amount as fuel oil. A time-stable emulsion fuel can be produced.

  In general emulsion fuel, the water for emulsion mixing is separated into hydrogen bonds by resonance electromagnetic waves, electromagnetic fields, etc., and activated water with small clusters, thereby promoting water-in-oil emulsion mixing. Water becomes a combustible and high combustion heat is obtained. On the other hand, because the water cluster becomes smaller and activated, the oil-water separation of the oil-in-water emulsion mixture becomes faster, so there is a problem that water cannot be mixed in as much as the oil-in-water emulsion fuel. According to the present invention, by adjusting the viscosity of the active water with a plant-derived thickener, a suspension emulsion fuel that is stable for a certain period of time even when the active water is increased to almost the same amount as the fuel oil is generated. it can.

  According to the method for producing emulsion fuel according to the present invention, emulsion fuel can be produced efficiently at low cost using a small apparatus. Moreover, it becomes possible to reduce generation | occurrence | production of the carbon dioxide which is a main cause of global warming by mixing water with a fuel oil as a combustible agent in a high ratio.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a flowchart of a method for producing an emulsion fuel according to the present invention.

  Water (active water) as a raw material of the emulsion fuel is supplied to a water (active water) tank 1 through a water (active water) supply pipe 11. The fuel oil is supplied to the fuel tank 2 through the fuel oil supply pipe 12. The plant-derived thickener is stored in the thickener tank 4 in a high-concentration water state.

  With the eductor 8 mixed with a certain amount of thickener, the water transferred by the viscosity adjusting water transfer pump 5 and the fuel oil transferred by the fuel transfer pump 6 are stirred and mixed by the two-component mixing static mixer 9. And injected into the emulsion fuel tank 3. .

  The emulsion fuel injected into the emulsion fuel tank 3 is circulated through the static mixer 10 by the emulsion fuel pump transfer pump 7, and uniform and stable emulsion fuel is generated by high-speed shearing.

  In this emulsion fuel generation method, flow rate adjusting valves 13 to 17 are arranged so that an optimum apparatus operating state can be obtained. Automatic operation is also possible by remotely operating this flow control valve.

  That is, according to the emulsion fuel generation method of the present embodiment, by adding about 100 ppm of a plant-derived thickener to water for generating emulsion fuel and increasing the viscosity, the emulsion can be stably mixed with the fuel oil, and the size can be reduced. Using the apparatus, it is possible to efficiently produce an emulsion fuel at a low cost.

  As an example of the present invention, about 20 L of active water and about 20 L of heavy oil A treated with resonance electromagnetic waves added with about 2 g of plant-derived thickener were circulated and mixed with a gear pump and a static mixer for 5 minutes. When the emulsion fuel was allowed to stand for 24 hours and then used as fuel for boilers and diesel engines, it was confirmed that both were operating extremely smoothly.

Industrial applicability

  According to the present invention, by appropriately increasing the viscosity of water in accordance with the viscosity of the fuel oil, it is possible to generate an emulsion fuel in which water is stably mixed at a high ratio, which is an alternative fuel for the existing fuel oil. And the generation of carbon dioxide due to the combustion of fossil fuels can be greatly reduced.

These show the flowchart of the production | generation method of the emulsion fuel which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water (active water) tank 2 Fuel oil tank 3 Emulsion fuel tank 4 Thickener tank 5 Viscosity adjustment water transfer pump 6 Fuel oil transfer pump 7 Emulsion fuel transfer pump 8 Eductor 9 Two liquid mixing static mixer 10 Static mixer 11 Water ( Active water) supply pipe 12 Fuel oil supply pipe 13-17 Flow rate adjustment valve

Claims (2)

  Emulsion fuel characterized by stably mixing water and fuel oil with a plant-derived thickener   The emulsion fuel according to claim 1, wherein water is activated water excited by resonance energy of electromagnetic waves or electromagnetic field.

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