JP2014105260A - Method for producing emulsified fuel and apparatus for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and apparatus for producing an emulsified fuel stably burning as a fuel for a steam boiler, a burner and the like.SOLUTION: A method for producing an emulsified fuel using fuel oil, water, and an additive includes: an additive production step of producing an additive using a surfactant and a diluent; a first stage emulsified fuel production step of producing an emulsified fuel by mixing and agitating the additive produced in the additive production step, fuel oil, and water; and a second stage emulsified fuel production step of atomizing the emulsified fuel produced in the first stage emulsified fuel production step.

Description

  The present invention relates to a method for producing an emulsified fuel in which fuel oil, water, and a surfactant are mixed, which can reduce the consumption of heavy oil and light oil used as fuel for steam boilers and burners, and a production apparatus therefor.

  An emulsified fuel obtained by mixing fuel oil with water and a surfactant is said to have an effect of reducing fuel oil consumption and greenhouse gas emissions. Therefore, conventionally, various emulsified fuels and methods for producing the same have been developed. For example, Patent Document 1 includes a stirring process for generating a stirring flow of a liquid and an emulsification process for forming an emulsion by passing the liquid through the pores of a ceramic molded body, and the petroleum system circulating through the stirring process and the emulsification process. After supplying water to the liquid fuel, the additive A mainly composed of nonionic surfactant, liquid alcohol, oil agent and alkaline water is supplied, and thereafter, the additive mainly composed of anionic surfactant and alkaline water is added. Disclosed is a method for producing an emulsion fuel, characterized in that the agent B is supplied and the mixture is circulated a plurality of times between the stirring step and the emulsification step, thereby producing a stable emulsion fuel. You can do that.

  Further, Patent Document 2 discloses an emulsion fuel manufacturing method in which an emulsion fuel is manufactured by passing a mixed liquid obtained by mixing water, oil, and an emulsifier through a mixing portion where a filter is disposed while applying pressure. An emulsion fuel production method is disclosed in which the outlet of the part is throttled and a filter is disposed immediately before the outlet. According to this technique, since the mixed liquid can be subdivided by effectively using cavitation generated at the outlet of the mixing unit, it is not necessary to apply a high pressure to the mixed liquid. For this reason, it is not necessary to make the piping and joints of the apparatus high-pressure resistant, and the fuel production process can be performed with a very simple configuration. Therefore, it is said that maintenance work and filter replacement work are extremely easy.

  Further, since the fuel can be efficiently subdivided, it is not particularly necessary to form a plurality of mixing portions, and in this respect, the apparatus can be simplified. Of course, since a stirring device and a vibration device are unnecessary, the installation cost and the run cost are extremely low compared with other methods that require them. In addition, the fuel obtained by this method has a stronger bond between oil and water during fragmentation, the separation time is slower, and high-quality fuel that enables long-term storage of fuel is continuously produced. can get. That is, a remarkable effect that high quality fuel can be obtained efficiently with a simple configuration is recognized.

JP 2008-13633 A JP 2008-156438 A

  However, in the technique disclosed in the above-mentioned patent document, since the mixing and atomization of the emulsified fuel are insufficient, the emulsified fuel alone sometimes causes poor ignition. In order to solve this phenomenon, it is necessary to supply only fuel oil at the time of ignition and to switch to emulsified fuel after ignition, and there is room for improvement. Further, it has been pointed out that even when ignited with emulsified fuel, oil-water separation proceeds in a short time and stable combustion cannot be obtained.

  The present invention is intended to solve the above-described problems, and an object of the present invention is to provide a method and apparatus for producing an emulsified fuel that stably burns as a fuel such as a steam boiler and a burner.

In order to cope with the above-described problems, the present invention takes the following technical means.
That is, the invention according to claim 1 is a method for producing an emulsified fuel produced using a fuel oil, water and an additive, and an additive production process for producing an additive using a surfactant and a diluent, The first stage emulsified fuel production process for producing an emulsified fuel by mixing and stirring the additive produced in the additive production process, fuel oil and water, and the emulsified fuel produced in the first stage emulsified fuel production process in fine particles A method for producing an emulsified fuel, comprising a step of producing a second-stage emulsified fuel.

  The invention according to claim 2 is the method for producing an emulsified fuel according to claim 1, wherein the additive production step is a first step of producing an additive by mixing and stirring a surfactant and a diluent. It includes an additive manufacturing process and a second stage additive manufacturing process for atomizing the additive manufactured in the first stage additive manufacturing process.

  According to a third aspect of the present invention, there is provided an emulsified fuel manufacturing apparatus manufactured using fuel oil, water and an additive, an additive manufacturing apparatus for manufacturing an additive using a surfactant and a diluent, a fuel An oil supply unit, a water supply unit, an additive supply unit for supplying an additive manufactured by the additive manufacturing apparatus, a fuel oil supplied from the fuel oil supply unit, and a water supply unit Multistage feather agitating mechanism for producing a first stage emulsified fuel by continuously mixing water and an additive supplied from the additive supply section, and a first stage emulsified fuel produced by the multistage feather agitator mechanism A first-stage emulsified fuel storage tank, a first-stage emulsified fuel storage tank stored in the first-stage emulsified fuel storage tank, and a second-stage emulsified fuel to produce a second-stage emulsified fuel. Stores manufactured second-stage emulsified fuel Is a manufacturing apparatus of an emulsion fuel, comprising a second stage emulsion fuel storage tank.

  The invention described in claim 4 is the apparatus for producing an emulsified fuel according to claim 3, wherein the additive manufacturing apparatus includes a surfactant supply unit, a diluent supply unit, and the surfactant supply unit. The first stage additive manufactured by the stirring and mixing mechanism, and the stirring and mixing mechanism for manufacturing the first stage additive by mixing the surfactant supplied from the diluent and the diluent supplied from the diluent supply unit And a second-stage additive storage tank for storing the second-stage additive produced by the atomization mechanism. Furthermore, the invention according to claim 5 is the emulsified fuel manufacturing apparatus according to claim 3 or 4, wherein the atomization mechanism is a mechanism in which the first stage emulsified fuel is spray-injected or collided by being injected at high speed. It is characterized by being.

  According to the present invention, the consumption of fuel oil due to the combustion of emulsified fuel can be greatly reduced (about 20-25%) compared to fuel oil alone, so the cost of using fuel oil and the amount of greenhouse gas emissions can be reduced. Can be reduced. Further, since the emulsified fuel is made into fine particles, oil-water separation is suppressed and stable combustion is obtained. Furthermore, when about 30 to 35% of water is added to the fuel oil produced by the combination of the multistage wing mixing and stirring mechanism and the atomization mechanism, the resulting emulsified fuel is atomized so that the particle size of the fuel particles is 10 μm or less. Therefore, the heat loss deprived of air heating can be reduced by the effects of “increase in contact area with air” and “combustion with an air amount close to the theoretical value”.

It is the block flow figure showing the embodiment of the manufacturing method of the emulsification fuel concerning the present invention. It is the block flow figure which showed the manufacturing method of the additive in the manufacturing method of the emulsified fuel which concerns on this invention. It is the systematic diagram which showed embodiment of the manufacturing apparatus of the emulsified fuel which concerns on this invention. It is the systematic diagram which showed the additive manufacturing apparatus in the manufacturing method of the emulsified fuel which concerns on this invention. It is the systematic diagram which showed the spray injection mechanism in the manufacturing apparatus of the emulsified fuel which concerns on this invention. It is the schematic which showed the high-speed collision mechanism in the manufacturing apparatus of the emulsified fuel which concerns on this invention. It is the bar graph which showed the result of having measured the fuel consumption when the emulsified fuel manufactured with the spray injection mechanism in the manufacturing apparatus of the emulsified fuel which concerns on this invention was burned with the vacuum type hot water supply heating / warm water heater. It is the graph which showed the result of having measured the particle diameter of the emulsified fuel manufactured by the high-speed collision mechanism in the manufacturing apparatus of the emulsified fuel which concerns on this invention. It is the graph which showed the result of having measured the combustion flame temperature at the time of burning the emulsified fuel manufactured by the high-speed collision mechanism with the burner in the manufacturing apparatus of the emulsified fuel which concerns on this invention. It is the bar graph which showed the result of having measured the fuel consumption at the time of burning the emulsified fuel manufactured by the high-speed collision mechanism with the burner in the manufacturing apparatus of the emulsified fuel which concerns on this invention. It is the graph which showed the result of having measured the exhaust gas temperature at the time of burning the emulsified fuel manufactured by the high-speed collision mechanism with the steam boiler in the manufacturing apparatus of the emulsified fuel which concerns on this invention. It is the bar graph which showed the result of having measured the fuel consumption at the time of burning the emulsified fuel manufactured with the high-speed collision mechanism with the steam boiler in the manufacturing apparatus of the emulsified fuel which concerns on this invention.

An embodiment of a method for producing an emulsified fuel according to the present invention will be described with reference to FIG.
FIG. 1 is a block flow diagram showing an embodiment of a method for producing an emulsified fuel according to the present invention.

  As shown in FIG. 1, in the first embodiment of the method for producing an emulsified fuel according to the present invention, first, the surfactant is supplied from the surfactant supply unit, and the diluent is supplied from the diluent supply unit. The supply is received and the additive is manufactured in the additive manufacturing process. Next, the fuel oil from the fuel oil supply unit, the water from the water supply unit, and the additive produced in the additive production process from the additive supply unit are supplied, and in the first stage emulsified fuel production process A first stage emulsified fuel is produced. Subsequently, the first-stage emulsified fuel is supplied, and in the second-stage emulsified fuel production process, the second-stage emulsified fuel is produced, and finally the emulsified fuel is obtained.

  Next, a second embodiment of the method for producing an emulsified fuel according to the present invention will be described with reference to FIGS. In the present embodiment, the additive manufacturing process in FIG. 1 is the process shown in FIG. 2. First, the surfactant is supplied from the surfactant supply unit, and the diluent is supplied from the diluent supply unit. In the first stage additive manufacturing step, these are mixed and stirred, whereby the first stage additive is manufactured. Then, the first-stage additive is produced by making the first-stage additive into fine particles in the second-stage additive production process.

  Next, as shown in FIG. 1, the fuel oil from the fuel oil supply unit, the water from the water supply unit, and the additive produced in the additive production process from the additive supply unit (second stage additive) ) In the first stage emulsified fuel production process, the first stage emulsified fuel is produced. Subsequently, the first-stage emulsified fuel is supplied, and in the second-stage emulsified fuel production process, the second-stage emulsified fuel is produced, and finally the emulsified fuel is obtained.

  Subsequently, an embodiment of an emulsified fuel production apparatus according to the present invention will be described with reference to the drawings. FIG. 3 is a system diagram showing an embodiment of an emulsified fuel production apparatus according to the present invention, where 10 is an emulsified fuel production apparatus, 12 is a fuel oil storage tank, 14 is fuel oil, 16 is a water storage tank, and 18 is water. , 20 is an additive production apparatus, 22 is an additive storage tank, 24 is an additive, 26 is a multistage wing mixing and stirring mechanism, 28 is a first stage emulsified fuel storage tank, 30 is an emulsified fuel atomization mechanism, and 32 is a second stage emulsification. Fuel storage tank, 34 is a fuel oil transfer pump, 36 is a water transfer pump, 38 is an additive transfer pump, 40 is a blade, 42 is a rotating shaft, 44 is a casing, 46 is a partition plate, 48 is a first stage emulsified fuel, 50 Denotes an emulsified fuel supply pump, and 52 denotes a second-stage emulsified fuel.

  First, the emulsified fuel manufacturing apparatus 10 according to this embodiment stores a fuel oil storage tank 12 that stores fuel oil 14, a water storage tank 16 that stores water 18, and an additive 24 that is manufactured by the additive manufacturing apparatus 20. An additive storage tank 22 is provided. Further, a fuel oil transfer pump 34 for transferring the fuel oil 14 in the fuel oil storage tank 12 to the multistage blade mixing and stirring mechanism 26, a water transfer pump 36 for transferring the water 18 to the multistage blade mixing and stirring mechanism 26, and an additive 24. Is added to the multi-stage blade mixing and stirring mechanism 26.

  Subsequently, the multistage blade mixing and agitating mechanism 26 is configured such that a rotating shaft 42 having blades 40 attached in multiple stages is housed in a casing 44, and partition plates 46 are alternately arranged on the inner wall of the casing 44 with the blades 40. It has an attached configuration. In the multistage blade mixing and stirring mechanism 26, the rotating shaft 42 rotates at, for example, 960 rpm, so that the transported fuel oil 14, water 18 and additive 24 are continuously mixed and stirred. A step emulsified fuel 48 is produced. The emulsified fuel production apparatus 10 includes a first-stage emulsified fuel storage tank 28 and is configured to store the first-stage emulsified fuel 48 produced by the multistage blade mixing and stirring mechanism 26.

  Next, the emulsified fuel manufacturing apparatus 10 includes an emulsified fuel atomization mechanism 30 that atomizes the first-stage emulsified fuel 48, and an emulsified fuel supply that supplies the first-stage emulsified fuel 48 to the emulsified fuel atomization mechanism 30. A pump 50 and a second stage emulsified fuel storage tank 32 are provided. The emulsified micronization mechanism 30 produces a micronized second stage emulsified fuel 52, and the second stage emulsified fuel 52 is stored in the second stage emulsified fuel storage tank 32.

  Here, an embodiment of the emulsified fuel micronization mechanism 30 is shown in FIGS. First, FIG. 5 shows a first configuration of the emulsified fuel micronization mechanism 30, where 54 is a stirring and mixing tank, 56 is a spray nozzle, and 58 is a spray jig. The emulsified fuel micronization mechanism 30 includes a stirring and mixing tank 54, and a spray jig 58 is attached in the stirring and mixing tank 54. In this embodiment, the spray jig 58 is provided with 40 spray nozzles 56 having a diameter of about 0.7 mm.

  When the first-stage emulsified fuel 48 is supplied to the spray nozzle 56 by the emulsified fuel supply pump 50, the first-stage emulsified fuel 48 is ejected at a linear flow velocity of 2 to 4 m / sec. It is a mechanism that is manufactured and stored in the second stage emulsified fuel storage tank 32.

  Next, FIG. 6 shows a second configuration of the emulsified fuel atomization mechanism 30, wherein 60 is a collision jig, 62 is an injection plate, 64 is a collision ball, 66 is an emulsified fuel inlet, and 68 is emulsified. The fuel outlet is shown. The emulsified fuel micronization mechanism 30 includes a collision jig 60, and an alumina injection plate (diameter 15 mm, thickness 9 mm) 62 having excellent wear resistance is installed in the flow path in the collision jig 60. ing. Further, a through hole having a diameter of 0.7 mm is provided at the center of the injection plate 62.

  An alumina collision sphere (diameter 12 mm) 64 is installed on the extended line of the flow path. The first-stage emulsified fuel 48 supplied from the emulsified fuel supply pump 50 passes through the emulsified fuel inlet 66 and the through hole of the injection plate 62 and collides with the collision ball 64. The linear flow velocity of the first stage emulsified fuel 48 when passing through the through-hole of the injection plate 62 is about 90 m / sec, and the first stage emulsified fuel 48 collides with the collision sphere 64 at a high speed and becomes finer.

  The micronized emulsified fuel passes through the gap between the collision sphere 64 and the passage, passes through the emulsified fuel outlet 68, and is stored in the second-stage emulsified fuel storage tank 32 as the second-stage emulsified fuel 52. The shape to which the emulsified fuel collides may be a rugby ball-like ellipse or a plate other than a sphere.

  Next, another embodiment of the emulsified fuel production apparatus according to the present invention will be described with reference to the drawings. FIG. 4 shows a configuration of an additive manufacturing apparatus provided in the emulsified fuel manufacturing apparatus according to the present embodiment. In addition, about a code | symbol, 20 is an additive manufacturing apparatus, 70 is surfactant supply part, 72 is a diluent supply part, 74 is a mixer, 76 is a stirring mixing tank, 78 is a 1st stage additive, 80 is an additive The atomizer mechanism, 82 is an additive supply pump, 84 is a second stage additive, and 86 is a second stage additive storage tank.

  In the present embodiment, the additive manufacturing apparatus 20 includes a stirring and mixing tank 76, a mixer 74 that stirs the contents in the stirring and mixing tank 76, and a surfactant supply unit 70 that supplies a surfactant into the stirring and mixing tank 76. And a diluent supply unit 72 for supplying the diluent. Furthermore, an additive atomization mechanism 80 for atomizing the first-stage additive 78 produced in the stirring and mixing tank 76 and a first-stage additive 78 are supplied from the stirring and mixing tank 76 to the additive atomizer mechanism 80. And a second-stage additive storage tank 86 for storing the second-stage additive 84 atomized by the additive atomization mechanism 80.

  Here, an additive manufacturing method using the additive manufacturing apparatus 20 in the present embodiment will be described with reference to FIG. Since the surfactant in the stock solution has a large viscosity, it is difficult to transfer it with a pump at the same concentration. Therefore, the first stage additive 78 is manufactured in the stirring and mixing tank 76 by diluting the surfactant in the stock solution with the diluent. The surfactant is preferably in the range of LHB 4 to 6 in order to disperse water particles in the fuel oil particles.

  Moreover, since the diluent makes the emulsified fuel burn stably, the same type of oil as the fuel oil is selected. In this embodiment, since the fuel oil is A heavy oil, A heavy oil was selected as the diluent. The surfactant is supplied to the stirring and mixing tank 76 from the surfactant supply unit 70 at a volume ratio of 20% and from the diluent supply part 72 at a volume ratio of 80%. In the stirring and mixing tank 76, the surfactant and diluent are stirred and mixed by the mixer 74 to produce the first stage additive 78.

  Next, the first additive 78 is supplied to the additive atomization mechanism 80 by the additive supply pump 82. For the details of the additive microparticulation mechanism 80, any of those described in the foregoing embodiments (FIGS. 5 and 6) is used. In the additive atomization mechanism 80, the first additive 78 is sprayed or collided at high speed to be atomized. The second-stage additive 84 formed into fine particles is stored in the second additive storage tank 86.

(Combustion test 1)
Subsequently, the emulsified fuel was manufactured by an apparatus in which the spray injection mechanism of FIG. 5 was incorporated into the emulsified fuel manufacturing apparatus of FIG. 3, and a combustion test was conducted using a vacuum hot water supply / heating water heater. The implementation procedure is as follows: fuel oil storage tank A fuel oil 168L / h, water storage tank water 72L / h, additive storage tank additive 1.2L / h (surfactant 0.24L / h) The wing mixing and stirring mechanism was supplied. Since the total supply amount is 240 L / h, the respective volume ratios are 70% for heavy oil A, 30% for water, and 0.1% for surfactant. In the multistage wing mixing and stirring mechanism, A heavy oil, water and a surfactant are continuously mixed and stirred to produce a first stage emulsified fuel. The first stage emulsified fuel is discharged from the outlet of the multistage blade mixing and stirring mechanism and stored in the first stage emulsified fuel storage tank.

  Next, the first stage emulsified fuel is supplied to the spray injection mechanism at a flow rate of 240 L / h. In the spray tank of the spray injection mechanism, the first-stage emulsified fuel is spray-injected (linear flow velocity 4 m / sec) to form fine particles. The micronized second stage emulsified fuel is stored in a second stage emulsified fuel storage tank. Subsequently, the second-stage emulsified fuel was supplied to two vacuum hot water heater / warm water heaters, and a combustion test of the emulsified fuel was performed. In addition, this vacuum-type oil supply heating water heater uses A heavy oil as fuel in normal operation.

  Here, the result of the combustion test is shown in FIG. As a result of carrying out the operation test of the emulsified fuel for 44 hours, A heavy oil was 2490 L, water was 1070 L, surfactant in the additive was 0.7 L, and the total was 3560 L. On the other hand, A heavy oil consumption when burning only heavy oil A for the same time was 3090L. From this test result, it was found that the consumption of heavy fuel oil A in the emulsified fuel operation can be reduced by 19% compared with the single fuel oil operation alone.

  As described above, by applying the emulsified fuel produced by the emulsified fuel production apparatus provided with the combination of the multistage feather stirring mechanism and the spray injection mechanism of the present invention to the alternative fuel for the vacuum hot water supply / heating water heater, the A heavy oil, the light oil Can be reduced, and greenhouse gas (carbon dioxide) emissions can be reduced. In addition, the combustion test of the emulsified fuel manufactured with the spray injection mechanism was conducted also with the burner and the steam boiler, and the reduction rate of the A heavy oil consumption was about 20% as in the case of the vacuum hot water supply / heating water heater.

(Combustion test 2)
In the spray injection mechanism in the combustion test 1, the reduction rate of fuel oil consumption was limited to about 20%. In order to further reduce the consumption of fuel oil, the emulsified fuel was manufactured by the apparatus incorporating the high-speed collision mechanism of FIG. 6 into the emulsified fuel manufacturing apparatus of FIG. 3, and a combustion test using a burner and a steam boiler was performed.

  The production conditions of the first stage emulsified fuel by the multistage wing supply mechanism for carrying out the combustion test with the burner are as follows (Table 1).

  In Table 1 above, the total supply amount of (1) and (2) is 120 L / h. In the multistage wing mixing and stirring mechanism, A heavy oil, water and a surfactant are continuously mixed and stirred to produce a first stage emulsified fuel. The first stage emulsified fuel is discharged from the outlet of the multistage blade mixing and stirring mechanism and stored in the first stage emulsified fuel storage tank.

  Next, the first stage emulsified fuel is supplied to the high speed collision machine at a flow rate of 540 L / h. In the high-speed collision mechanism, the first-stage emulsified fuel collides with the collision sphere at a linear flow velocity of 90 m / sec, and the second-stage emulsified fuel that has been made finer is manufactured and stored in the second-stage emulsified fuel storage tank. FIG. 8 shows the result of measuring the particle size of the particles by observing the second stage emulsified fuel with an optical microscope. It can be seen that the particles of the emulsified fuel have a particle size of 10 μm or less and have been atomized by high-speed collision.

  Subsequently, a combustion test was conducted by supplying the second stage emulsified fuel to a burner used for drying concrete and gravel. The temperature measurement result of the combustion flame is shown in FIG. FIG. 9 shows the change over time in the burner combustion flame temperature. The ◯ mark indicates the water addition ratio of the emulsified fuel 35%, the □ mark indicates the water addition ratio of the emulsified fuel 40%, and the Δ mark indicates the A heavy oil alone. The temperature of the burner combustion flame showed almost the same value when the water addition ratio of the emulsified fuel was 35% and A heavy oil alone, and changed in the range of 825 ° C to 850 ° C. On the other hand, at a water addition ratio of 40% in the emulsified fuel, the temperature suddenly decreased and was in the range of 750 ° C to 775 ° C. From this test result, it is understood that the water added to the emulsified fuel is preferably 35% or less.

  Next, the water addition ratio of the emulsified fuel was 35%, and the fuel consumption of A heavy oil alone was measured. The measurement result of the fuel consumption is shown in FIG. The consumption of A heavy oil of the emulsified fuel was 4.3 L / h, and the consumption of A heavy oil by A heavy oil alone was 5.8 L / h. From this test result, it was found that the consumption of A heavy oil in the emulsified fuel operation can be reduced by 26% as compared with the operation of A heavy oil alone.

  As described above, the emulsified fuel produced by the combination of the multistage blade stirring mechanism and the high-speed injection mechanism of the present invention is converted into fine particles. Thus, it was found that the heat loss taken by the air heating can be reduced. Due to these effects, the consumption of heavy oil A by emulsified fuel could be reduced by 26% compared with heavy oil A alone.

(Combustion test 3)
In this combustion test, the results of a combustion test of the emulsified fuel produced in the above-described combustion test 2 with a steam boiler will be described. In addition, the combustion test was implemented after 5 days for the second stage emulsified fuel produced in the combustion test 2. The measurement result of the exhaust gas temperature during emulsified fuel combustion is shown in FIG. For comparison, the figure also shows the exhaust gas temperature when A fuel oil is burned alone. The exhaust gas temperature of the steam boiler was around 180 ° C. for both emulsified fuel and A heavy oil alone.

  Next, the measurement result of the fuel consumption is shown in FIG. The amount of heavy oil A consumed by the emulsified fuel was 34 L / h, and the amount of heavy fuel A consumed by the heavy oil A alone was 45 L / h. From this test result, the consumption of A heavy oil in the emulsified fuel operation was reduced by 24% compared with the operation of A heavy oil alone. As described above, the emulsified fuel produced by the combination of the multistage blade stirring mechanism and the high-speed injection mechanism of the present invention is converted into fine particles. Thus, it was found that the heat loss taken by the air heating can be reduced.

  In addition, it was also found that the emulsified fuel that had passed 5 days after production was combusted stably due to the formation of fine particles, and the consumption of A heavy oil at this time could be reduced by 24% compared to A heavy oil alone. In addition, the combustion test of the emulsified fuel was also conducted in the vacuum hot water heater / warm water heater and the burner, and the reduction rate of A heavy oil consumption was about 25% as in the case of the steam boiler.

  The method and apparatus for producing an emulsified fuel according to the present invention can produce an emulsified fuel with a small loss of heat lost to air heating, thereby reducing costs associated with the use of fuel oil and greenhouse gas emissions. It can be suitably used for the purpose.

DESCRIPTION OF SYMBOLS 10 Emulsified fuel manufacturing apparatus 12 Fuel oil storage tank 14 Fuel oil 16 Water storage tank 18 Water 20 Additive manufacturing apparatus 22 Additive storage tank 24 Additive 26 Multistage wing mixing and stirring mechanism 28 First stage emulsified fuel storage tank 30 Emulsified fuel micronization mechanism 32 Second stage emulsified fuel storage tank 34 Fuel oil transfer pump 36 Water transfer pump 38 Additive transfer pump 40 Blade 42 Rotating shaft 44 Casing 46 Partition plate 48 First stage emulsified fuel 50 Emulsified fuel supply pump 52 Second stage emulsified fuel 54 Stir and mix Tank 56 Spray nozzle 58 Spray jig 60 Collision jig 62 Injection plate 64 Collision ball 66 Emulsified fuel inlet section 68 Emulsified fuel outlet section 70 Surfactant supply section 72 Diluent supply section 74 Mixer 76 Stir and mix tank 78 First stage addition Additive agent 80 Additive atomization mechanism 82 Additive supply pump 84 Second stage additive 86 Second stage additive storage tank

Claims (5)

In a method for producing an emulsified fuel produced using fuel oil, water and additives,
An additive production process for producing an additive using a surfactant and a diluent;
The first stage emulsified fuel production process for producing an emulsified fuel by mixing and stirring the additive produced in the additive production process and fuel oil and water,
A second-stage emulsified fuel production step of micronizing the emulsified fuel produced in the first-stage emulsified fuel production step;
A method for producing an emulsified fuel, comprising: The additive manufacturing process includes:
First stage additive production process of mixing and stirring the surfactant and diluent to produce the additive,
A second-stage additive production process for micronizing the additive produced in the first-stage additive production process;
The method for producing an emulsified fuel according to claim 1, comprising: In a production apparatus for emulsified fuel produced using fuel oil, water and additives,
An additive production device for producing an additive using a surfactant and a diluent;
A fuel oil supply unit, a water supply unit, an additive supply unit for supplying an additive produced by the additive production apparatus,
The first stage emulsified fuel is manufactured by continuously mixing the fuel oil supplied from the fuel oil supply unit, the water supplied from the water supply unit, and the additive supplied from the additive supply unit. A multi-stage feather stirring mechanism;
A first-stage emulsified fuel storage tank for storing the first-stage emulsified fuel produced by the multistage wing stirring mechanism;
A microparticulation mechanism for further microparticulating the first stage emulsified fuel stored in the first stage emulsified fuel storage tank to produce a second stage emulsified fuel;
A second-stage emulsified fuel storage tank for storing the second-stage emulsified fuel produced by the atomization mechanism;
An apparatus for producing an emulsified fuel, comprising: The additive manufacturing apparatus comprises:
A surfactant supply unit, a diluent supply unit,
A stirring and mixing mechanism for producing a first-stage additive by mixing the surfactant supplied from the surfactant supply unit and the diluent supplied from the diluent supply unit;
A microparticulation mechanism for producing a second-stage additive by atomizing the first-stage additive produced by the stirring and mixing mechanism;
A second-stage additive storage tank for storing the second-stage additive produced by the micronization mechanism;
The manufacturing apparatus of the emulsified fuel of Claim 3 characterized by the above-mentioned.   The apparatus for producing an emulsified fuel according to claim 3 or 4, wherein the atomization mechanism is a mechanism for spraying the first stage emulsified fuel or causing the first stage emulsified fuel to collide by being injected at a high speed.

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