JP2011202014A - Biofuel-producing method and apparatus for producing biofuel from edible oil waste, and apparatus for producing blended fuel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biofuel-producing apparatus which can produce a biofuel from an edible oil waste inexpensively and at a low running cost.SOLUTION: The biofuel-producing apparatus 1, 1A makes a biofuel by removing, by a filter means 20, microparticles of foreign matter from an edible oil waste having being subjected to a removal treatment of unwanted substances by an oil waste-treating tank 10 to store and treat the edible oil waste. In the oil waste-treating tank 10, an edible oil waste injected from an injection port 11 installed on the upper part is received by a strainer 13 to remove foreign matter and the like; water and precipitates settling in the bottom part 17 on still standing of the edible oil waste is discharged from a precipitate discharging port 18 installed at the bottom part 17; the remaining edible oil waste is heated by a heating means 15 while being stirred by a stirring means 14; steam separated from the oil content is exhausted from a steam exhausting port 12; and the treated edible oil waste is fed out to the filter means 20 from an edible oil waste-delivering port 16 to remove the microparticles of foreign matter.

Description

  The present invention relates to a biofuel production method and biofuel production apparatus for producing biofuel from edible waste oil, and further to a mixed fuel production apparatus for producing a mixed fuel by mixing the produced biofuel and A heavy oil.

  It has been a long time since resource saving, recycling, etc. have been screamed, but currently, edible oil discharged from the food service industry, food manufacturing industry, households, etc. is estimated to be about 600,000 tons per year. Of this edible waste oil, the amount recovered by a recovery company from restaurants, hotels, etc. is about 250,000 tons, and about 10,000 tons are used as biodiesel fuel as an alternative to light oil.

  And most of the remaining 340,000 tons are disposed of as burning garbage. That is, most of the edible waste oil is wasted. Among them, biodiesel fuel is produced from edible waste oil as a raw material for effective use, but the proportion used as a raw material for biodiesel fuel is less than 2% of the whole edible waste oil. Increasing this ratio will greatly contribute to resource saving and prevention of global warming by effective use of resources.

  However, edible waste oil is a combination of fatty acid and glycerin. For this reason, this bond is transesterified with caustic soda, which is an alkali catalyst, with methanol. As a result, the biodiesel fuel becomes a substance in which fatty acid and methanol are combined, and glycerin is combined with caustic soda to generate a by-product as a glycerin residue. Glycerin is used as soap or compost, but is discarded because it is discharged in large quantities.

  As an example of the prior art, there is one that uses edible waste oil for the production of biodiesel fuel or the like as disclosed in Patent Document 1, for example. That is, the waste edible oil is transesterified with methanol to separate the diesel fuel, and then the methanol is separated and recovered from its by-products, and the purified glycerin is separated. This is a method in which an esterification reaction and a neutralization reaction are performed to separate and purify a by-product effective as a heavy oil burner fuel.

Japanese Patent No. 3028282

  However, in such a conventional technique, as described above, glycerin waste is generated as a by-product, and therefore, it is necessary to treat it. Also, since methanol is used, the production equipment becomes complicated and expensive production equipment is obtained. There was a problem. Moreover, since about 20 to 30 liters of glycerin is separated from, for example, 100 liters of edible waste oil, the yield of oil after separation of glycerin is greatly reduced while disposing of the separated glycerin. Is also a problem in the industry.

  Furthermore, biodiesel fuel is classified as a hazardous material No. 3 petroleum because it causes a chemical reaction with petroleum-based solvents, and is only allowed to be produced in industrial-only areas. For this reason, in addition to expensive production facilities, it is subject to regulations such as the Fire Service Law, Building Standard Law, Sewerage Law, Occupational Safety and Health Law, Waste Disposal Law, quality confirmation, etc. In order to produce biodiesel fuel from waste oil, there is a problem that enormous facilities and investment are required.

  In addition, when biodiesel fuel is mixed with light oil and used, oil tax of 32.10 yen per liter is applied. Therefore, production of biodiesel fuel is less cost-effective than light oil price in the market. . Furthermore, even if one liter is produced at a cost of 38 yen, the cost of equipment cannot be amortized if the oil tax is added, so there is a reality that it is extremely difficult for the private sector to establish a business.

  Also, when using 100% biodiesel fuel, gaskets, packing, O-rings, hoses, etc. due to the swelling effect of edible waste oil will deteriorate, so it is necessary to replace all fuel systems that come in contact with biodiesel fuel with silicon systems. Yes. In addition, since engine oil is diluted with biodiesel fuel and the engine is likely to be seized, there is a problem that frequent oil change is required once a month.

  Thus, there are many problems related to the production of biodiesel fuel. Therefore, it is difficult to increase the effective utilization of edible waste oil by producing biodiesel fuel from edible waste oil at present.

  The present invention has been made paying attention to such problems of the conventional technology, and a biofuel production apparatus that can produce biofuel that is not biodiesel fuel from edible waste oil at low cost and low running cost. Another object of the present invention is to provide a biofuel production method and a mixed fuel production apparatus for producing a mixed fuel by mixing A heavy oil with the produced biofuel.

The gist of the present invention for achieving the object lies in the inventions of the following items.
[1] A biofuel production apparatus (1, 1A) for producing biofuel from edible waste oil,
A waste oil treatment tank (10) for storing and processing edible waste oil, and filter means (20) for removing contaminants from the edible waste oil treated in the waste oil treatment tank (10) to make biofuel,
The waste oil treatment tank (10) includes an edible waste oil inlet (11) provided in an upper portion, a strainer (13) that receives edible waste oil injected from the inlet (11) and removes solids, A heating means (15) for heating edible waste oil inside the waste oil treatment tank (10), a stirring means (14) for stirring the edible waste oil inside the waste oil treatment tank (10), and an upper part of the waste oil treatment tank (10) A water vapor outlet (12) provided in the bottom, a bottom (17), a sediment outlet (18) for discharging water and sediment accumulated in the bottom (17) to the outside, and a lower part An edible waste oil delivery port (16) for delivering the treated edible waste oil to the filter means (20),
The edible waste oil inside the waste oil treatment tank (10) is allowed to stand, and the water and sediment collected at the bottom (17) of the waste oil treatment tank (10) are discharged from the precipitate discharge port (18) and remain. Edible waste oil is heated by the heating means (15) to improve fluidity and stirred by the stirring means (14) to evaporate water, and the evaporated water is discharged from the water vapor outlet (12). Then, the edible waste oil is passed through the edible waste oil delivery port (16) through the filter means (20) to remove fine particles of contaminants to obtain biofuel (1, 1A).

[2] A biofuel tank (30A) for storing biofuel from which fine particles of impurities have been removed through the filter means (20), and a flash point improver for the biofuel from the biofuel tank (30A) A flash point improver addition part (50) to be added, and a storage tank (60) for storing the biofuel to which the flash point improver is added,
The flash point improver adding section (50) includes a heating means (52) for heating the biofuel from the biofuel tank (30A), and a flash point for adding to the biofuel heated by the heating means (52). A flash point improver tank (51) in which the improver is stored, and an addition unit in which the flash point improver from the flash point improver tank (51) is added to the biofuel heated by the heating means (52). (53)
The storage tank (60) has heating means (62) for heating the stored biofuel, and stirring means (61) for stirring the stored biofuel, The item [1] Biofuel production device (1A).

[3] A mixed fuel production apparatus (2) for producing a mixed fuel of biofuel produced from edible waste oil and A heavy oil,
The biofuel production apparatus (1) according to [2], and a biofuel tank for storing biofuel from which fine particles of impurities have been removed through the filter means (20) of the biofuel production apparatus (1) ( 30A), an A heavy oil tank for storing A heavy oil, a mixing unit (71) for mixing the biofuel and the A heavy oil, and a mixed fuel storage for storing the mixed fuel mixed in the mixing unit (71) A tank (90),
The mixed fuel storage tank (90) is a mixed fuel production apparatus (2) having heating means (92) for heating the stored mixed fuel and stirring means (91) for stirring the stored mixed fuel.

[4] A biofuel production method for producing biofuel from edible waste oil,
The edible waste oil is injected into the waste oil treatment tank (10) through the strainer (13) while removing impurities.
The edible waste oil stored in the waste oil treatment tank (10) is allowed to stand for a predetermined time, and the water and the sediment collected at the bottom of the waste oil treatment tank (10) are provided at the bottom of the waste oil treatment tank (10). Let it drain from the outlet (18),
Thereafter, the edible waste oil remaining in the waste oil treatment tank (10) is heated and stirred to improve the fluidity of the edible waste oil and evaporate the water to separate the oil water, and then from the waste oil treatment tank (10). A biofuel production method for producing biofuel by removing fine particles of contaminants through filter means (20) provided outside the waste oil treatment tank (10).

The present invention operates as follows.
In a large flow, the edible waste oil is processed in the waste oil treatment tank (10) and then sent to the filter means (20). Fine particles of contaminants are removed by the filter means (20) to become biofuel.

  Edible waste oil is injected into the interior from an inlet (11) drilled in the upper part of the waste oil treatment tank (10). When the injected edible oil passes through the strainer (13) provided inside the waste oil treatment tank (10) of the injection port (11), solid matters such as large contaminants and mixed foreign matters are removed. The strainer (13) has a size of about 1 mm.

  If the edible waste oil stored in the waste oil treatment tank (10) after removing foreign matters and foreign matters is left to stand for a predetermined time, the oil and separated water and precipitates are left at the bottom of the waste oil treatment tank (10). Since they accumulate, these are discharged from the sediment outlet (18) provided at the bottom of the waste oil treatment tank (10). Thereby, solid matters and moisture such as foreign matters and foreign matters that could not be removed by the strainer (13) can be eliminated.

  Next, the edible waste oil is heated by the heating means (15) and stirred by the stirring means (14). This improves the fluidity of the edible waste oil and evaporates the water remaining in the oil. The evaporated water is discharged to the outside of the waste oil treatment tank (10) from the water vapor discharge port (12) provided in the upper part of the waste oil treatment tank (10). Thereby, a water | moisture content can be further excluded from waste oil.

  In this way, the edible waste oil from which moisture, impurities, foreign matters and the like have been removed is passed through the filter means (20) provided outside the waste oil treatment tank (10). Thereby, fine particles and moisture remaining in the edible waste oil are removed. The filter is such that, for example, fine particles having a size of 1 μm can be removed. In this way, biofuel can be produced.

  Since the biofuel produced in this manner is an edible waste oil, it is not subject to the laws and regulations described in paragraph 0007 above, and is stored in the biofuel tank (30) and handled in the same manner as normal edible oil. be able to.

  Further, the produced biofuel is stored in the biofuel tank (30A), the biofuel flowing from the biofuel tank (30A) is heated, and the flash point improver tank (51) is added to the heated biofuel. A flash point improver added from the above in the flash point improver addition section (50) may be stored in the storage tank (60). The biofuel stored in the storage tank (60) can be heated by the heating means (62) or stirred by the stirring means (61) as necessary.

  The produced biofuel is stored in the biofuel tank (30A), and the biofuel flowing from the biofuel tank (30A) is mixed with the A heavy oil flowing from the A heavy oil tank (70) (71 ) And may be stored in the mixed fuel storage tank (90) as a mixed fuel. The biofuel stored in the mixed fuel storage tank (90) can be heated by the heating means (92) or stirred by the stirring means (91) as necessary.

  According to the biofuel production apparatus according to the present invention, the apparatus itself can be manufactured at low cost and the running cost is low, and the produced biofuel is not subject to laws and regulations such as the Fire Service Act, so it is easy to handle. Effective utilization of edible waste oil can be promoted.

  In addition, even when the flash point improver is added to biofuels, the equipment itself can be manufactured at low cost, with low running costs, and effective use of edible waste oil. Can be promoted.

  Furthermore, even if it is a mixed fuel production device that adds biofuel to heavy fuel oil A, the device itself can be manufactured at low cost and the running cost is low, for example, the production cost of 1 liter can be reduced to less than 2 yen. Efficient use of edible waste oil can be promoted, and even if the ratio of biofuel to A heavy oil is about 7: 3, there is sufficient practicality as fuel, so boilers, incinerators, dryers, generators It can be widely used as a fuel.

It is a block diagram which shows the biofuel production apparatus which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the biofuel production apparatus which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the mixed fuel production apparatus which concerns on the 3rd Embodiment of this invention.

Hereinafter, various preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a biofuel production apparatus according to a first embodiment of the present invention.
As shown in FIG. 1, a biofuel production apparatus 1 according to a first embodiment of the present invention produces biofuel from edible waste oil, and stores a waste oil treatment tank 10 that stores and processes edible waste oil. And a filter means 20 that removes fine particles of contaminants from the edible waste oil treated in the waste oil treatment tank 10 to obtain biofuel, and further includes a biofuel tank 30 for storing the produced biofuel. Has been.

  The waste oil treatment tank 10 is provided with an edible waste oil inlet 11 and a water vapor outlet 12 for discharging water vapor from the inside of the waste oil treatment tank 10 at the upper part forming the ceiling. A lid 11 a that can be opened and closed is attached to the inlet 11. An openable / closable lid (not shown) is also attached to the water vapor outlet 12.

  A strainer 13 for receiving the injected edible waste oil is detachably attached to a place that enters the waste oil treatment tank 10 from the inlet 11. All the edible waste oil injected from the inlet 11 passes through the strainer 13 and is stored in the waste oil treatment tank 10. The strainer 13 is for removing solid matters in waste oil such as foreign matters and foreign matters having a size of 1 mm or more, and is a 1 mm mesh. The size of this eye is merely an illustrative numerical value and is not limited to 1 mm.

  Further, on the ceiling portion, a level meter LS for measuring the amount of edible waste oil stored in the waste oil treatment tank 10 and a blade B provided at the lower end of the rotary shaft extending from the motor M are driven by the driving force of the motor M. Stirring means 14 for rotating and stirring the stored edible waste oil is disposed.

  A Shizu heater 15 is disposed in the lower part of the waste oil treatment tank 10 as a heating means for heating the stored edible waste oil. An edible waste oil delivery port 16 for sending edible waste oil treated in the waste oil treatment tank 10 to the filter means 20 passes through a side wall near the bottom 17 of the waste oil treatment tank 10 below the Shih-Soo heater 15. .

  The bottom 17 of the waste oil treatment tank 10 is inclined. The inclination is lower toward the substantially opposite side from the vicinity where the edible waste oil delivery port 16 is drilled. In the vicinity of the lowest portion of the bottom portion 17, a small sediment discharge port 18 penetrating the bottom portion 17 is drilled in order to discharge water and sediment precipitated on the bottom portion 17 to the outside. The discharge pipe connected to the sediment discharge port 18 is provided with a valve V1, and whether or not the sediment is discharged from the precipitate discharge port 18 can be controlled by operating the valve V1. The valve V1 may be a manual valve but may be an electric valve. A heat insulating material 19 is entirely applied to the outside of the waste oil treatment tank 10. This is to prevent heat from being dissipated from the edible waste oil heated by the shih-soo heater 15.

  The delivery pipe connected to the edible waste oil delivery port 16 is connected to the pump P1, and a valve V2 is interposed between the pump P1 and the edible waste oil delivery port 16. The valve V2 is preferably an electric valve. The pump P1 is in communication with the filter means 20.

  The filter means 20 includes a pipe branched into two systems having the same configuration for flowing the edible waste oil sent from the pump P1. One pipe is provided with an electric valve V3, and a filter 21 is provided downstream thereof. The filter 21 can remove fine particles of foreign matters having a size of about 1 μm. The size of 1 μm is merely an example, and the present invention is not limited to this. An electric valve V4 is provided downstream of the filter 21.

  A bypass 211 branches off from the main pipe 210 provided with the filter 21 between the electric valve V3 and the filter 21. The bypass 211 is provided with a micro pressure gauge 22. The bypass 211 joins the main pipe 210 between the filter 21 of the main pipe 210 and the electric valve V4. The micro pressure gauge 22 measures the pressure of the edible waste oil flowing through the main pipe 210, and measures the pressure difference between the upstream side and the downstream side of the filter 21.

  In the other piping configured in the same manner as the piping configured in this manner, the main piping 220 corresponds to the main piping 210 of the piping, and the bypass 221 corresponds to the bypass 211. The electric valve V5 corresponds to the electric valve V3 of the pipe, the filter 23 corresponds to the filter 21, the micrometer 24 corresponds to the micromanometer 22, and the electric valve V6 corresponds to the electric valve V4.

  The filter means 20 configured in this way allows edible waste oil to flow through one pipe, and does not flow edible waste oil through both pipes at the same time. For example, when edible waste oil is flowing through the main pipe 210 side, the edible waste oil is not flowed into the main pipe 220 side. When the particulate solid content of the impurities in the edible waste oil is adsorbed to the filter 21 of the main pipe 210 and becomes saturated, the edible waste oil is allowed to flow to the main pipe 220 side without flowing to the main pipe 210. .

  That is, by measuring the pressure difference of the edible waste oil flowing through the main pipe 210 between the upstream side and the downstream side of the filter 21, the state of the particulate solid content of the foreign matter adsorbed on the filter 21 can be determined, and the state is saturated. When the pressure difference indicating the state or the pressure difference when the preset filter 21 is to be replaced is reached, the electric valve V3 and the electric valve V4 are automatically closed, and the main pipe 220 is electrically operated. The valve V5 and the electric valve V6 are opened so that edible waste oil flows through the main pipe 220 side. Thereby, the production of biofuel can be continued without interruption.

  In addition, this description is an illustration, and edible waste oil is first flowed to the main pipe 220, and when the filter 23 on the main pipe 220 side is saturated or to be replaced, the edible waste oil is caused to flow to the main pipe 210 side. You may switch to. In this way, when one of the filters becomes saturated or needs to be replaced, an audible alarm is sounded to alert the user, or the alarm lamp is turned on so that a quick filter can be obtained. Can be exchanged.

  Thus, the biofuel production apparatus 1 can produce biofuel by finally removing the particulate solid content of the contaminants by the filter means 20. An electric valve V7 is provided in the piping downstream of the filter means 20, and a biofuel tank 30 for storing biofuel is provided downstream of the electric valve V7.

  The biofuel tank 30 is provided with a stirring means 31 similar to the stirring means 14 of the waste oil treatment tank 10. The stirring unit 31 is continuously driven while biofuel is stored in the biofuel tank 30.

  Further, the biofuel tank 30 is provided with a tank lorry discharge port 32 for transferring the stored biofuel to the tank lorry at the ceiling of the biofuel tank 30, and an extraction port 33 for taking out and using the biofuel. Is provided at the bottom of the inclined bottom. A manual valve V <b> 8 is provided in the pipe connected to the take-out port 33.

  Between the electric valve V <b> 7 and the biofuel tank 30, a pipe from the antioxidant tank 40 that stores the antioxidant is joined. This pipe is provided with a pump P2 for sending the antioxidant in the antioxidant tank 40 and adding it to the biofuel. In addition, since the addition of the antioxidant to the biofuel is not always necessary, the antioxidant tank 40 and the pump P2 can be omitted.

Next, the operation of the biofuel production apparatus 1 according to the first embodiment will be described.
The edible waste oil is first treated in the waste oil treatment tank 10, and then the fine solid content of impurities in the edible waste oil is removed by the filter 21 of the filter means 20 to become biofuel.

  Edible waste oil is injected from an injection port 11 formed in the upper portion of the waste oil treatment tank 10. When the edible waste oil that has been injected passes through the strainer 13 provided inside the waste oil treatment tank 10, solids in the waste oil such as foreign matters and foreign matters larger than about 1 mm are removed.

  A predetermined amount of edible waste oil stored in the waste oil treatment tank 10 is stored. The amount of stored edible oil is determined by the level meter LS.

  The injected edible waste oil is allowed to stand for a predetermined time. The predetermined time is, for example, about 30 minutes. Thereby, solid content, such as the water | moisture content which remains in edible waste oil, and a 1 mm or less contaminant, settles in the bottom part 17, and these can be naturally separated from oil. Precipitated moisture and solids are discharged to the outside of the waste oil treatment tank 10 from the sediment outlet 18 provided at the bottom of the waste oil treatment tank 10 by opening the valve V1. Thereby, solid content and water | moisture content, such as a foreign material, can be removed from edible waste oil.

  Next, the edible waste oil is heated to about 110 ° C. to 120 ° C. by the shih-zu heater 15 and stirred by the stirring means 14. Thereby, the fluidity | liquidity of edible waste oil can be improved and the water | moisture content which mixes with edible waste oil and remains can be evaporated. Since the outside of the waste oil treatment tank 10 is entirely covered with the heat insulating material 19, the edible waste oil heated to about 110 ° C to 120 ° C is kept warm for a long time.

  The water evaporated and separated from the edible waste oil by heating is discharged to the outside of the waste oil treatment tank 10 from the water vapor outlet 12 provided in the upper part of the waste oil treatment tank 10. In addition, since the water | moisture content isolate | separated from edible waste oil has an odor, you may perform a deodorizing process to the water vapor | steam discharged | emitted from the water vapor | steam discharge port 12. FIG. For the deodorization treatment, a general deodorization technique such as a method of decomposing an odor component by heating water vapor or a method of adsorbing the odor component through activated carbon may be used.

  The main processing in the waste oil processing tank 10 is completed as described above. The edible waste oil is then sent to the filter means 20. At this time, the edible waste oil heated by the shih-soo heater 15 as described above has fluidity close to that of A heavy oil. In this state, when the valve V2 is opened and the pump P1 is driven, the edible waste oil in the waste oil treatment tank 10 is discharged from the edible waste oil delivery port 16 and sent to the filter means 20 via the valve V2 and the pump P1.

  In the filter means 20, the electric valve V3 and the electric valve V4 are open, and the electric valve V5 and the electric valve V6 are closed. Further, since the electric valve 7 is open except during maintenance, the edible waste oil flows through the main pipe 210 and the particulate solid content of impurities is removed by the filter 21. The solid content of the fine particles to be removed has a size of 1 μm or more. The edible waste oil flowing through the main pipe 210 has a pressure difference between the upstream side and the downstream side of the filter 21 measured by the micro pressure gauge 22, and when the solid particulate matter is adsorbed to the filter 21 and becomes saturated, the electric valve V3 The electric valve V4 is closed, and the electric valve V5 and the electric valve V6 are opened. Thus, the edible waste oil becomes a biofuel from which the particulate solid content has been removed by the filter 23 through the main pipe 220 without interruption of the removal of the particulate solid content by the filter means 20.

  The biofuel is sent to the biofuel tank 30 because the electric valve V7 provided in the pipe downstream of the filter means 20 is open. Before being stored in the biofuel tank 30, the antioxidant sent out from the antioxidant tank 40 by the pump P2 is added to the biofuel. At this time, the surfactant may be quantitatively supplied. In the biofuel tank 30, the antioxidant is uniformly mixed with the biofuel by driving the stirring means 31.

  The biofuel produced in this way does not use methanol, unlike biodiesel fuel, and since the ingredients are edible oils, the Fire Service Act and the like are not applied, just like ordinary edible oils Can be handled. For this reason, it is not necessary to use facilities necessary for those subject to regulations such as the Fire Service Law, and the biofuel production apparatus itself can be constructed at low cost.

  Therefore, biofuel can be provided at low cost. Effective utilization of edible waste oil can be promoted.

  In addition, if the edible waste oil used as a raw material is of a stable nature, the filter means 20 is configured so that the replacement time of the filters 21 and 23 is determined in advance by a test operation. By exchanging, it is possible to make a simple configuration that does not require the micrometers 22 and 24.

  The means for heating the edible waste oil stored in the waste oil treatment tank 10 is not limited to the shih-soo heater 15 disposed in the waste oil treatment tank 10, but may be a throwing heater that is simply put into the waste oil treatment tank 10. However, it may be heated from the outside of the waste oil treatment tank 10.

  Further, the filter means 20 is provided with a micro pressure gauge 22 for detecting the saturated state of the filter 21 and a micro pressure gauge 24 for detecting the saturated state of the filter 23. When the saturated state is detected, the electric valves V3, V4 or the electric valve V5 are used. , V6 are automatically opened and closed, a warning sound for notifying that a saturated state has been detected, or a warning means that turns on a warning lamp is provided, so that the filter can be replaced quickly.

Next, a second embodiment of the present invention will be described.
FIG. 2 is a block diagram showing a biofuel production apparatus according to the second embodiment of the present invention.
As shown in FIG. 2, a biofuel production apparatus 1A according to a second embodiment of the present invention is a biofuel tank that stores biofuel produced in the biofuel production apparatus 1 according to the first embodiment. 30A, a flash point improver addition unit 50 for adding a flash point improver to the biofuel from the biofuel tank 30A, and a storage tank 60 for storing the biofuel to which the flash point improver is added. Yes.

  In the biofuel production apparatus 1A, the biofuel tank 30 communicated with the biofuel production apparatus 1 is used as the biofuel tank 30A, and the flash point improver addition unit 50 and the storage tank 60 are continuously provided in the same site as the biofuel production apparatus 1. However, the biofuel tank 30 </ b> A, the flash point improver addition unit 50, and the storage tank 60 may be provided in a different place from the biofuel production apparatus 1.

  For example, the biofuel production apparatus 1 shown in FIG. 1 is installed in a hospital, hotel, franchise store, etc., and the biofuel tank 30A, the flash point improver addition unit 50, and the storage tank 60 are installed in a food factory such as a franchise store. It is good also as what you did. In this case, the biofuel stored in the biofuel tank 30 may be transferred to the biofuel tank 30A by opening the manual valve V8, for example, into a canister or a pail can from the takeout port 33, or a tank lorry discharge port 32. May be transferred to a tank lorry and transported to a food factory such as a franchise store where the biofuel tank 30A is installed. The manual valve V8 may be an electric valve.

  A flash point improver addition unit 50 is disposed downstream of the biofuel tank 30 </ b> A, and a storage tank 60 is disposed downstream of the flash point improver addition unit 50. The biofuel tank 30A is provided with an openable and closable inlet 34 for injecting biofuel into the upper part thereof. In addition, a biofuel delivery port 35 for delivering stored biofuel is provided at the bottom.

  In the piping that connects the biofuel tank 30A and the flash point improving agent adding unit 50, a seed movement valve V9 is provided on the upstream side, and a pump P3 is provided on the downstream side of the manual valve V9. When flowing the biofuel stored in the biofuel tank 30A to the flash point improving agent adding unit 50, the manual valve V9 is opened and the pump P3 is driven. The manual valve V9 may be an electric valve.

  The flash point improving agent adding unit 50 is a flash point improving agent tank 51 that stores a flash point improving agent such as isopropyl alcohol, and a flash point improving agent that is stored in the flash point improving agent tank 51. The metering pump P4, the heating means 52 for heating the biofuel and raising the temperature before the flash point improver is added, and the pipe through which the biofuel flows and the pipe through which the flash point improver flow join. And an addition unit 53.

  A storage tank 60 is disposed downstream of the flash point improver addition unit 50, and the biofuel to which the flash point improver is added by the addition unit 53 is stored in the storage tank 60. The storage tank 60 is provided with a level gauge LS and stirring means 61 similar to the level gauge LS and stirring means 14 of the waste oil treatment tank 10 of the biofuel production apparatus 1. The stirring means 61 is for preventing the flash point improver mixed with the biofuel from being separated. Further, near the bottom of the storage tank 60, a heating means 62 similar to the Shih-zu heater 15 of the waste oil treatment tank 10 is provided. In addition, a heat insulating material 63 is entirely applied to the outside of the storage tank 60.

  A pipe 64 for supplying biofuel to the burner 80 extends from the storage tank 60. Further, from the burner 80, a return pipe 81 for returning excess biofuel not used for combustion to the storage tank 60 is extended to the storage tank 60. The burner 80 is equipped with a pump (not shown), and biofuel is supplied from the storage tank 60 to the burner 80 by the pump, and excess biofuel that has not been used is returned to the storage tank 60. .

Next, the operation of the biofuel production apparatus 1A according to the second embodiment will be described.
The biofuel stored in the biofuel tank 30A is supplied to the flash point improving agent adding section 50 by opening the manual valve V9 and driving the pump P3. In the flash point improving agent adding unit 50, the moving biofuel is heated to 60 ° C. to 70 ° C. by the heating means 52. On the other hand, the flash point improver stored in the flash point improver tank 51 is sent to the addition unit 53 by the metering pump P4.

  In the addition unit 53, a certain amount of flash point improver is added to the heated biofuel and sent to the storage tank 60. The biofuel stored in the storage tank 60 is driven by the stirring means 61 in order to mix the flash point improver more uniformly. Further, the biofuel is heated by the heating means 62 so as to be approximately 100 ° C.

  The biofuel 80 stored in the storage tank 60 is used as fuel for the burner through the pipe 64 by a pump equipped in the burner 80. Excess mixed fuel that is not used as fuel is returned to the storage tank 60 through the return pipe 81.

Next, a third embodiment of the present invention will be described.
FIG. 3 is a block diagram showing a mixed fuel production apparatus according to the third embodiment.
As shown in FIG. 3, the mixed fuel production apparatus 2 according to the third embodiment of the present invention mixes an A heavy oil tank 70 that stores A heavy oil in the biofuel production apparatus 1A according to the second embodiment. It connects with the part 71, and mixes biofuel with A heavy oil. A pump P5 is interposed in the pipe between the A heavy oil tank 70 and the mixing unit 71.

  The biofuel tank 30B is the same as the biofuel tank 30A in the biofuel production apparatus 1A according to the second embodiment. A fuel oil mixed with biofuel is stored in the mixed fuel storage tank 90. This mixed fuel storage tank 90 is the same as the storage tank 60 in the second embodiment. The means 91 and the heating means 92 are the same as the level meter LS, the stirring means 61 and the heating means 62 in the second embodiment. In addition, the same code | symbol is attached | subjected to the same structural member as 1 A of biofuel production apparatuses which concern on 2nd Embodiment. In the mixed fuel production apparatus 2, the flash point improver tank 51 and the metering pump P4 in the flash point improver addition unit 50 are not necessary, but may be provided.

Next, the operation of the mixed fuel production apparatus 2 according to the third embodiment will be described.
The biofuel stored in the biofuel tank 30B is sent toward the mixed fuel storage tank 90 by opening the manual valve V9 and driving the pump P3. Downstream of the pump P3, the biofuel flowing in the pipe is heated to 60 ° C. to 70 ° C. by the heating means 52. On the other hand, the A heavy oil stored in the A heavy oil tank 70 is sent to the mixing unit 71 by the pump P5.

  In the mixing part 71, biofuel and A heavy oil are mixed so that it may become a predetermined | prescribed mixing ratio. For example, biofuel: A heavy oil = 7: 3. This mixing ratio may be 5: 5, 3: 7. The mixed fuel having such a mixing ratio is stored in the mixed fuel storage tank 90. Note that the practicality of the mixed fuel having this mixing ratio has been confirmed to be good in a combustion test. The mixed fuel may be a mixture of biofuel and A heavy oil at a mixing ratio other than the above-described mixing ratio.

  In the mixed fuel storage tank 90, the stored mixed fuel is appropriately heated or stirred as necessary by the heating means 92 and the stirring means 91. For example, when the mixed fuel stored in the mixed fuel storage tank 90 is supplied as the fuel for the burner 80, it is heated to about 100 ° C. by the heating unit 92 while being stirred by the stirring unit 91.

  The heated mixed fuel is supplied as fuel for the burner 80 through the pipe 94. Excess mixed fuel that is not used as fuel by the burner 80 is returned to the mixed fuel storage tank 90 through the return pipe 81.

  As described above, according to the present invention, it is possible to produce biofuel from edible waste oil at low cost and low running cost, or to produce mixed fuel of biofuel and heavy fuel oil A, etc. The utilization rate can be significantly improved.

In addition, it is a great merit that all edible waste oil can be reused as an alternative fuel as A heavy oil. Since biodiesel fuel reacts with methanol that does not emit by-products during its production process, the calorie of biodiesel fuel is helped by methanol, but when methanol is added, it is not carbon neutral, and when burned, CO ₂ is generated . On the other hand, since the biofuel produced by the biofuel production apparatus according to the present invention is carbon neutral, it does not generate CO ₂ that contributes to global warming even if it is burned. It will contribute to the prevention of global warming.

  In addition, glycerin by-products that are always discharged when producing biodiesel fuel from edible edible oil and animal fats and oils from cooking do not need to be separated, and the biofuel can be burned alone (Fig. 2). The mixed fuel of biofuel and heavy fuel oil A can be burned (FIG. 3).

  If the actual implementation of the biofuel production apparatus 1, 1 </ b> A and the mixed fuel production apparatus 2 according to the present invention is specifically illustrated, each store such as a franchise store in the restaurant industry is the first embodiment shown in FIG. 1. The biofuel production apparatus 1 which concerns on this is installed, and the biofuel which can be preserve | saved by addition of antioxidant is produced in each store. The produced biofuel is put in a container such as Ito Can.

  The food delivery vehicle collects the biofuel contained in the container such as the Ito Can and takes it to the food factory from each store. In the food factory, 100% biofuel is used as a fuel for boilers, incinerators, dryers, generators, etc. via the biofuel production apparatus 1A shown in FIG.

  In this type of use, food waste oil collected from each store is brought into a food factory, etc. without being converted into biofuel at each restaurant in the restaurant industry, and planted as a large-scale biofuel production facility. It is also possible to do.

  The mixed fuel production apparatus 2 as shown in FIG. 3 mixes biofuel and A heavy oil at a predetermined mixing ratio to produce a mixed fuel. This mixed fuel is also used in a boiler, an incinerator, and a dryer. It can be effectively used as a fuel for generators.

  The embodiments of the present invention have been described above with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the present invention can be modified or added without departing from the scope of the present invention. Included in the invention.

  The present invention uses edible waste oil as a raw material for biofuel, but is not limited to edible waste oil, and can be applied to effective use of various waste oils.

B ... Blade LS ... Level meter M ... Motor P1 ... Pump P2 ... Pump P3 ... Pump P4 ... Metering pump P5 ... Pump V1 ... Valve V2 ... Valve V3 ... Electric valve V4 ... Electric valve V5 ... Electric valve V6 ... Electric valve V7 ... Electric valve V8 ... Manual valve V9 ... Manual valve 1 ... Biofuel production device 1A ... Biofuel production device 2 ... Mixed fuel production device 10 ... Waste oil treatment tank 11 ... Inlet 11a ... Lid 12 ... Water vapor outlet 13 ... Strainer 14 ... Stirring means 15 ... Shizu heater 16 ... Edible waste oil delivery outlet 17 ... Bottom 18 ... Precipitate outlet 19 ... Insulating material 20 ... Filter means 21 ... Filter 22 ... Micro pressure gauge 23 ... Filter 24 ... Micro pressure gauge 30 ... Biofuel tank 30A ... Biofuel tank 30B ... Biofuel tank 31 ... Agitation means 32 ... tank lorry discharge port 33 ... take-out port 34 ... injection port 35 ... biofuel delivery port 40 ... antioxidant tank 50 ... flash point improver addition part 51 ... flash point improver tank 52 ... heating means 53 ... addition part 60 ... Storage tank 61 ... Stirring means 62 ... Heating means 63 ... Insulating material 64 ... Piping 70 ... A heavy oil tank 71 ... Mixing section 80 ... Burner 81 ... Return pipe 90 ... Mixed fuel storage tank 91 ... Stirring means 92 ... Heating means 94 ... Piping 210 ... Main piping 211 ... Bypass 220 ... Main piping 221 ... Bypass

Claims (4)

A biofuel production apparatus for producing biofuel from edible waste oil,
A waste oil treatment tank for storing and processing edible waste oil, and filter means for removing contaminants from the edible waste oil treated in the waste oil treatment tank to make biofuel,
The waste oil treatment tank includes an edible waste oil inlet provided at an upper portion, a strainer that receives edible waste oil injected from the inlet and removes solids, and a heating unit that heats the edible waste oil inside the waste oil treatment tank Agitation means for agitating the edible waste oil inside the waste oil treatment tank, a water vapor outlet provided at the top of the waste oil treatment tank, and water and sediment accumulated at the bottom for discharging to the outside A sediment discharge port, and an edible waste oil delivery port provided at the lower portion for delivering treated edible waste oil to the filter means,
The edible waste oil inside the waste oil treatment tank is allowed to stand, and water and sediment collected at the bottom of the waste oil treatment tank are discharged from the precipitate discharge port, and the remaining edible waste oil is heated by the heating means to be fluid. And evaporating the water by stirring with the stirring means, discharging the evaporated water from the water vapor outlet, and passing the edible waste oil through the filter means from the edible waste oil outlet to the fine particles of impurities A biofuel production device that removes water to make biofuel. A biofuel tank for storing biofuel from which fine particles of contaminants have been removed through the filter means, a flash point improver adding part for adding a flash point improver to the biofuel from the biofuel tank, and the flash A storage tank for storing the biofuel to which the point improver is added,
The flash point improver addition unit includes a heating unit that heats biofuel from the biofuel tank, and a flash point improver tank that stores a flash point improver that is added to the biofuel heated by the heating unit; And an addition part to which the flash point improver from the flash point improver tank is added to the biofuel heated by the heating means,
The biofuel production apparatus according to claim 1, wherein the storage tank includes a heating unit that heats the stored biofuel and a stirring unit that stirs the stored biofuel. A mixed fuel production device for producing a mixed fuel of biofuel produced from edible waste oil and A heavy oil,
A biofuel production apparatus according to claim 2, a biofuel tank for storing biofuel from which fine particles of impurities have been removed by passing through the filter means of the biofuel production apparatus, and an A heavy oil tank for storing A heavy oil A mixing unit that mixes the biofuel and the A heavy oil, and a mixed fuel storage tank that stores the mixed fuel mixed in the mixing unit,
The mixed fuel storage tank is a mixed fuel production apparatus having heating means for heating the stored mixed fuel and stirring means for stirring the stored mixed fuel. A biofuel production method for producing biofuel from edible waste oil,
Injecting edible waste oil into the waste oil treatment tank while removing impurities through the strainer,
The edible waste oil stored in the waste oil treatment tank is allowed to stand for a predetermined time, and the water and the sediment accumulated in the bottom of the waste oil treatment tank are discharged from a precipitate outlet provided at the bottom of the waste oil treatment tank,
Thereafter, the edible waste oil remaining in the waste oil treatment tank is heated and stirred to improve the fluidity of the edible waste oil and evaporate water to separate the oil and water from the waste oil treatment tank to the outside of the waste oil treatment tank. The biofuel production method which removes the fine particle of a foreign substance through the filter means provided in and uses it as a biofuel.

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