WO2015037678A1

WO2015037678A1 - Production method for compatible transparent water-containing oil and production device for compatible transparent water-containing oil

Info

Publication number: WO2015037678A1
Application number: PCT/JP2014/074138
Authority: WO
Inventors: 満治服部
Original assignee: Hattori Mitsuharu
Priority date: 2013-09-12
Filing date: 2014-09-11
Publication date: 2015-03-19
Also published as: TW201525129A

Abstract

The present invention provides a production method for a compatible transparent water-containing oil by which transparency can be maintained whilst water and oil are mixed, and a production device for the compatible transparent water-containing oil. The present method includes a reductant contacting step in which an oil-water emulsion containing oil and water is contacted with a reductant. The oil-water emulsion can contain a transparency agent, and the transparency agent is at least one of an amine compound, a water-soluble alcohol, a water-soluble ketone, or a water-soluble ether. The present device (1) includes: an air diffusion means (2) that diffuses air; a reductant contacting means (3) for contacting a reductant with the solution for processing, which contains the oil-water emulsion obtained by the air diffusion means; and a transparency agent adding means (7) that adds the transparency agent.

Description

Method for producing compatible transparent water-containing oil and apparatus for producing compatible transparent water-containing oil

The present invention relates to a method for producing a compatible transparent hydrous oil and an apparatus for producing a compatible transparent hydrous oil. More specifically, the present invention relates to a compatible transparent hydrous oil production method capable of maintaining transparency while water and oil are mixed, and a compatible transparent hydrous oil production apparatus therefor.

Recently, depletion problem or fossil fuel such as petroleum reserves is limited, and the CO ₂ is discharged upon combustion of fossil fuels, NOx, harmful substances due to global warming and environmental pollution SOx such problems In order to cope with this, an emulsion fuel obtained by mixing and emulsifying fuel oil and water has attracted attention, and various production methods have been proposed.

For example, in the invention described in Patent Document 1, water is mixed in an environment where a positive potential of 200 V or more is applied while air bubbles are generated by air injection in the fuel oil and stirred. An attempt is made to obtain a transparent oil-water mixture.

In addition, the invention described in Patent Document 2 uses the eductor effect and the eddy current effect to appropriately adjust and add active water whose viscosity is increased by a plant-derived thickener and an oily combustion accelerator. By stirring and circulatingly mixing the base fuel oil, it is intended to obtain a uniform emulsion fuel oil in which oil and water are not separated stably for a long time.
In addition, patent document 3 is based on this applicant.

JP 2005-307136 A JP 2010-138362 A International Publication No. 2013/054451 Pamphlet

However, the invention described in Patent Document 1 described above provides a method for producing a transparent mixed oil without using an emulsifier or the like, but the weight ratio of water that can be mixed in the oil is 10% to It was only about 15%.

In the invention described in Patent Document 2, fuel oil is agitated and mixed with water using the eductor effect and the vortex effect. For this reason, it is difficult to obtain an emulsion in which particles are uniformly formed, and it is difficult to stably maintain the oil-water emulsion state for a long period of time at a high water content. Further, the obtained product oil is not transparent, and there is a problem that the commercial value cannot be increased.
Furthermore, the manufacturing method of the compatible transparent water-containing oil which was different from patent document 3, and was more excellent and the compatible transparent water-containing oil manufacturing apparatus for it are provided.

The present invention has been made in view of the above-described conventional technology, and provides a compatible transparent hydrous oil production method capable of maintaining transparency while water and oil are mixed, and a compatible transparent hydrous oil production apparatus therefor The purpose is to do.

That is, the present invention is as follows.
The gist of the method for producing a compatible transparent hydrous oil according to claim 1 includes a reducing agent contact step in which an oil-water emulsion containing water and oil is brought into contact with a reducing agent.
The method for producing a compatible transparent hydrous oil according to claim 2 is characterized in that, in the method for producing a compatible transparent hydrous oil according to claim 1, the reducing agent contains a sulfite.
The method for producing a compatible transparent water-containing oil according to claim 3 is summarized in that in the method for producing a compatible transparent water-containing oil according to

claim

1 or 2, the oil is a fuel oil.
The method for producing a compatible transparent water-containing oil according to claim 4 is the method for producing a compatible transparent water-containing oil according to any one of claims 1 to 3, wherein the oil-water emulsion contains a clearing agent,
The gist is that the clearing agent is at least one of an amine compound, a water-soluble alcohol, a water-soluble ketone, and a water-soluble ether.
The method for producing a compatible transparent hydrous oil according to claim 5 comprises: an aeration process for aeration and emulsification of a liquid to be treated in which oil and water exhibiting a negative oxidation-reduction potential coexist. ,
A reducing agent contact step in which a liquid to be treated containing the oil-water emulsion obtained through the aeration step is brought into contact with a reducing agent;
Liquid to be treated before the air diffusion step, liquid to be treated during the air diffusion step, liquid to be treated after the air diffusion step and before the reducing agent contact step, and liquid to be treated during the reducing agent contact step, A clearing agent addition step of adding a clearing agent to the liquid to be treated,
The gist is that the clearing agent contains at least one of an amine compound, a water-soluble alcohol, a water-soluble ketone, and a water-soluble ether.
The method for producing a compatible transparent hydrous oil according to claim 6 is characterized in that, in the method for producing a compatible transparent hydrous oil according to claim 5, the reducing agent contains a sulfite.
The method for producing a compatible transparent water-containing oil according to claim 7 is the method for producing a compatible transparent water-containing oil according to any one of claims 5 and 6, wherein the aeration step is performed in an air diffusion tank. Done,
While performing the air diffusion, the liquid to be treated in the air diffusion tank is circulated so as to be taken out from the lower part of the air diffusion tank to the outside and re-injected into the tank from the upper part of the air diffusion tank. The gist is that
The method for producing a compatible transparent water-containing oil according to claim 8 is the method for producing a compatible transparent water-containing oil according to any one of claims 5 to 7, simultaneously with the reducing agent contacting step, or The gist is to further include a filtration step of filtering the liquid to be treated obtained so far after the reducing agent contact step.
The method for producing a compatible transparent hydrous oil according to claim 9 is the method for producing a compatible transparent hydrous oil according to any of claims 5 to 8, wherein the oil is a fuel oil. And
A compatible transparent hydrous oil production apparatus according to claim 10 is a compatible transparent hydrous oil production apparatus for the method according to any one of claims 5 to 9, wherein the air is diffused. Qi means and
A reducing agent contact means for bringing the liquid to be treated containing the oil-water emulsion obtained through the aeration means into contact with the reducing agent;
And a clearing agent adding means for adding a clearing agent.
The apparatus for producing a compatible transparent hydrous oil according to claim 11 comprises:
The said aeration means comprises an aeration tank and a circulation function part, and in the compatible transparent water-containing oil producing apparatus according to claim 10, wherein the circulation function part is a liquid to be treated during the aeration process. The gist of the invention is that it is a functional part that can be taken out from the lower part of the diffuser tank and re-entered from the upper part of the diffuser tank.

The manufacturing method of the compatible transparent hydrous oil of this 1st invention is equipped with the reducing agent contact process which contacts the oil-water emulsion containing water and oil with a reducing agent. According to this method, a compatible transparent hydrous oil that can maintain transparency while water and oil are mixed can be produced.
When the reducing agent contains sulfite, a compatible transparent hydrous oil that can maintain transparency while mixing water and oil can be obtained particularly reliably.
When the oil is a fuel oil, a compatible transparent water-containing oil that suppresses the generation of nitrogen oxides and sulfur oxides while maintaining combustion calories can be obtained.
When the oil-water emulsion contains a clearing agent and the clearing agent is at least one of an amine compound, a water-soluble alcohol, a water-soluble ketone, and a water-soluble ether, water and oil are mixed. Thus, a compatible transparent hydrous oil that can maintain transparency can be produced particularly efficiently.

The method for producing a compatible transparent hydrous oil of the second invention comprises an aeration step, a reducing agent contact step, and a clarifying agent addition step. According to this method, a compatible transparent hydrous oil that can maintain transparency while water and oil are mixed can be produced.
When the reducing agent contains sulfite, a compatible transparent hydrous oil that can maintain transparency while mixing water and oil can be obtained particularly reliably.
While the air diffusion process is performed in the air diffusion tank, the liquid to be treated in the air diffusion tank is taken out from the lower part of the air diffusion tank to the outside of the air diffusion tank. When it is circulated so as to be reintroduced into the tank, a compatible transparent hydrated oil can be obtained more efficiently.
Simultaneously with the reducing agent contact step or after the reducing agent contact step, if further equipped with a filtration step for filtering the liquid to be treated, the slime is applied when slimming occurs. Can be removed.
When the oil is a fuel oil, a compatible transparent water-containing oil that suppresses the generation of nitrogen oxides and sulfur oxides while maintaining combustion calories can be obtained.

The compatible transparent hydrous oil production apparatus of the present invention includes an aeration means, a reducing agent contact means, and a clarifying agent addition means. With this configuration, this apparatus can produce a compatible transparent hydrous oil that can maintain transparency while water and oil are mixed.
The air diffusion means includes an air diffusion tank and a circulation function unit, and the circulation function unit takes out the liquid to be treated during the air diffusion process from the lower part of the air diffusion tank to the outside of the tank and from the upper part of the air diffusion tank to the inside of the tank. In the case of a functional part that can be re-introduced into the tank, a compatible transparent water-containing oil can be produced more efficiently.

It is a schematic diagram which shows an example of a compatible transparent water-containing oil manufacturing apparatus. It is a schematic diagram which shows an example of a compatible transparent water-containing oil manufacturing apparatus. It is a schematic diagram which shows an example of a compatible transparent water-containing oil manufacturing apparatus. It is a schematic diagram explaining one form of aeration. It is a schematic diagram explaining the other form of aeration.

1. Method for producing compatible transparent hydrous oil (1)
The method for producing a compatible transparent hydrous oil according to the first invention comprises a reducing agent contact step in which an oil-water emulsion containing water and oil is brought into contact with a reducing agent.

The “oil-in-water emulsion” is a dispersion in which water and oil are contained and dispersed. In this oil-water emulsion, either water or oil may be a dispersoid, and any of water and oil may be a dispersion medium.
The water contained in the oil-water emulsion can be any water and can be used without limitation. That is, for example, tap water, river lake water, ground water, ion exchange water, deionized water, purified water, pure water, and the like can be used. Although seawater can be used, it is preferable to remove the salt after preparing a compatible transparent hydrous oil.

The oil contained in the oil-water emulsion can be any oil and can be used without limitation. That is, for example, mineral oil, vegetable oil, synthetic oil and the like can be mentioned. Furthermore, these various oils may be new oils, waste oils, or mixed oils of new oils and waste oils. These may use only 1 type and may use 2 or more types together.

Among the above, mineral oil includes fuel oil derived from fossil fuels such as petroleum (crude oil), natural gas, and coal. That is, for example, gasoline (regular gasoline, high-octane gasoline, etc.), light oil, kerosene, heavy oil (A heavy oil, C heavy oil, bunker C heavy oil, etc.) and the like are included. Furthermore, fuel oil such as C9 is included. These may use only 1 type and may use 2 or more types together.
C9 has, for example, a specific gravity of 0.9267, cyclopentadiene, methylcyclopentadiene, styrene, α-methylstyrene, dicyclopentadiene, vinyltoluene, indene, TB-Me-styrene, C10 olefin, naphthalene. And fuel oil containing H-resin, ethylbenzene + BTX, and the like.

Among the above, vegetable oil includes oil collected from various plants. That is, palm oil (oil palm), palm kernel oil (oil palm), palm oil (coconut palm), corn oil (corn), rice oil (rice), rice bran oil (rice), cottonseed oil (Aoiaceae cotton genus plant), olive oil (Olive), peanut oil (peanut), rapeseed oil (rapeseed), safflower oil (safflower), sesame oil (sesame), soybean oil (soybean), sunflower oil (sunflower), jatropha oil (nanyo oilseed), hemp oil (hemp) ), Oil extracted from various coniferous trees such as yellow lotus oil (yellow lotus tree) and pine oil (coniferous trees such as pine), and other oils collected from seeds of various plants used as nuts. That is, the vegetable oil contained in the category normally called biodiesel is contained. These may use only 1 type and may use 2 or more types together.

Furthermore, synthetic oils include oils obtained by processing mineral oils, oils obtained by processing vegetable oils, and chemical synthetic oils that do not use mineral oils and vegetable oils as raw materials. That is, for example, various polyolefin synthetic oils, ether synthetic oils, ester synthetic oils and the like are included. These may use only 1 type and may use 2 or more types together.
Any of these various oils can be used alone or in combination as fuel oil. Among these, as the fuel oil, the above-described mineral oil is preferable, and gasoline, light oil, kerosene, and heavy oil are more preferable.

The ratio of water and oil contained in the oil-water emulsion is not particularly limited, but usually the same amount as the amount of water contained in the obtained compatible transparent hydrous oil is blended. Specifically, it is preferable to blend such that water is 50 volume% or less (usually 10 volume% or more) with respect to 100 volume% of the oil-water emulsion.

When gasoline is used as the oil, water is preferably 10 to 30% by volume with respect to 100% by volume of the oil-water emulsion.
When light oil is used as the oil, water is preferably 10 to 30% by volume with respect to 100% by volume of the oil-water emulsion.
Further, when kerosene is used as the oil, water is preferably 10 to 40% by volume with respect to 100% by volume of the oil-water emulsion.
When heavy oil A is used as the oil, water is preferably 10 to 40% by volume with respect to 100% by volume of the oil-water emulsion.
Furthermore, when C heavy oil is used as the oil, water is preferably 10 to 30% by volume with respect to 100% by volume of the oil-water emulsion.
Further, when bunker C heavy oil is used as the oil, water is preferably 10 to 30% by volume with respect to 100% by volume of the oil-water emulsion.
Further, when palm oil (including biodiesel fuel) is used as the oil, the processing water is preferably 10 to 30% by volume with respect to 100% by volume of the oil-water emulsion.

In addition to water and oil, other components can be blended in the oil-water emulsion. Examples of other components include a clarifying agent.
The clearing agent is a component that promotes the clearing of the oil-water emulsion. As the clarifying agent, various amine compounds, water-soluble alcohols, water-soluble ketones, water-soluble ethers, and the like can be used. These may use only 1 type and may use 2 or more types.

Among the clarifying agents, the amine compound is specifically an organic compound having one or more amine groups represented by —NR ₁ R ₂ R ₃ or a salt thereof. However, R ₁ to R ₃ are each independently a hydrogen atom, a halogen atom or a monovalent organic group. That is, the amine compound may be a primary amine, a secondary amine, or a tertiary amine.

When R ₁ to R ₃ constituting the amine compound are organic groups, examples of these organic groups include alkyl groups, hydroxyalkyl groups, and aryl groups. Examples of the alkyl group include a linear or branched alkyl group having 1 to 5 carbon atoms and a cyclic alkyl group having 5 to 8 carbon atoms. Specific examples include a linear or branched alkyl group such as a methyl group, an ethyl group, a propyl group, and a butyl group, and a cycloalkyl group such as a cyclohexyl group. Examples of the hydroxyalkyl group include linear and branched hydroxyalkyl groups having 1 to 5 carbon atoms and hydroxycycloalkyl groups having 6 to 8 carbon atoms. Specific examples include hydroxyalkyl groups such as hydroxymethyl group, hydroxyethyl group, hydroxypropyl group, and hydroxybutyl group, and hydroxycyclohexyl group. Furthermore, examples of the aryl group include a phenyl group, a methylphenyl group, an ethylphenyl group, and a hydroxyphenyl group. The amine compound is preferably a water-soluble amine compound.

Examples of such amine compounds include cyclohexylamine, monoethanolamine, diethanolamine, butylamine (n-, iso-, sec-, and tert-butylamine), pentylamine (n-, iso-, sec-, and tert-). Pentylamine), hexylamine (n-, iso-, sec-, tert-hexylamine), triethanolamine, tris (hydroxymethyl) aminomethane, aminophenol, aminocyclohexanol (2-aminocyclohexanol, 3-aminocyclohexanol, 4-aminocyclohexanol), cyclohexanediamine, cyclohexylhydroxylamine, aminobenzyl alcohol, methylcyclohexaneamine (N-methylcyclohexane-1-amine, 2- Chill cyclohexane-1-amine, 4-methylcyclohexane-1-amine), N- cyclohexyl ethanolamine, dicyclohexylamine, and the like.
Of these, cyclohexylamine, monoethanolamine, diethanolamine, n-butylamine, sec-butylamine, tert-butylamine, isobutylamine, triethanolamine, and trishydroxymethylaminomethane are particularly preferable. This is because these preferable amine compounds have particularly high solubility in water.
These amine compounds may use only 1 type and may use 2 or more types together.

When an amine compound is used as the clarifying agent, the content of the amine compound is not particularly limited, and it is preferably contained to such an extent that a sufficient effect can be obtained according to the type. Usually, the amine compound is contained in an amount of 0.001 to 0.1% by volume based on 100% by volume of the oil-water emulsion. In this range, the oil-water emulsion is more effectively transparent and the transparency is easily maintained. Moreover, although it may exceed this range, an improvement in effect is hardly recognized. The content is further preferably 0.005 to 0.07% by volume, more preferably 0.01 to 0.05% by volume, and particularly preferably 0.015 to 0.04% by volume.

Further, among the amine compounds, when only cyclohexylamine is used, 0.001 to 0.05% by volume of cyclohexylamine is preferably contained with respect to 100% by volume of the oil-water emulsion. Within this range, the oil-water emulsion is more effectively transparent and the transparency is easily maintained. Moreover, although it may exceed this range, an improvement in effect is hardly recognized. The content is more preferably 0.002 to 0.03% by volume, and particularly preferably 0.005 to 0.025% by volume.

Further, when cyclohexylamine and triethanolamine are used in combination as a clarifying agent, the volume ratio of cyclohexylamine and triethanolamine is 1: 9 to 3: 7 (particularly 1.5: 8.5 to 2. It is preferred to use an amine mixture mixed in 5: 7.5). The amine compound (amine mixture) is preferably contained in an amount of 000.1 to 0.05% by volume with respect to 100% by volume of the oil-water emulsion. In this range, the oil-water emulsion is more effectively transparent and the transparency is easily maintained. Although it may contain exceeding this range, an effect improvement is hard to be recognized. Further, the content is more preferably 0.002 to 0.03% by volume, and particularly preferably 0.005 to 0.02% by volume.

On the other hand, the water-soluble alcohol, water-soluble ketone and water-soluble ether as the clarifying agent are all preferably water-soluble, and alcohol, ketone and ether which can be dissolved in water are preferable. Specifically, usually, these water-soluble compounds preferably have 1 to 8 carbon atoms.
More specifically, water-soluble alcohols include alkyl alcohols and ether alcohols. The alkyl alcohol includes alkyl monools and alkyl diols. On the other hand, ether alcohol includes ether monool and ether diol. Of these, the alkyl alcohol preferably has 1 to 6 carbon atoms. Among them, the alkyl monool preferably has 1 to 4 carbon atoms, and the alkyl diol preferably has 2 to 6 carbon atoms. On the other hand, the number of carbon atoms of the ether alcohol is preferably 3-6, and among them, the number of carbon atoms of the ether monool is preferably 3-5, and the number of carbon atoms of the ether diol is preferably 3-6. Further, the carbon number of the water-soluble ketone is preferably 2 to 5, and the carbon number of the water-soluble ether is preferably 2 to 4.

That is, examples of water-soluble alcohols include alkyl monools such as methanol, ethanol, 1-propanol, 2-propanol, 2-butanol, 2-methyl-1-propanol, 2-methyl-2-propanol; ethylene glycol, 1 , 2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,2-pentanediol, 1,5-pentanediol, 2-methyl-2,4-pentanediol, 3-methyl-1 Alkyl diols such as 1,5-pentanediol and 1,6-hexanediol; ether monools such as 2-methoxyethanol, 2-ethoxyethanol, 2-n-butoxyethanol and 2-ethoxyethyl acetate; ethers such as diethylene glycol Diols; and the like. These may use only 1 type and may use 2 or more types together.
Examples of water-soluble ketones include acetone, methyl ethyl ketone, diethyl ketone, and methyl propyl ketone. These may use only 1 type and may use 2 or more types together.
Furthermore, examples of the water-soluble ether include ethers such as dimethyl ether, methyl ethyl ether, and diethyl ether. These may use only 1 type and may use 2 or more types together.

The degree of water solubility is preferably 3 g or more in 100 mL of water (20 ° C.) in any of water-soluble alcohol, water-soluble ketone, and water-soluble ether (dissolution amount). Is not particularly limited, but is, for example, 1000 g). That is, all of the water-soluble alcohols, water-soluble ketones, and water-soluble ethers exemplified above are included.
The water solubility of these clarifying agents (water-soluble alcohols, water-soluble ketones and water-soluble ethers) is preferably greater, and specifically, the amount dissolved in 100 mL of water (20 ° C.) is 20 g or more. It is more preferable that That is, the above-described clarifying agent includes alkyl monools such as methanol, ethanol, 1-propanol, 2-propanol and the like. Furthermore, all the alkyl diols mentioned above, all the ether monools mentioned above, all the ether diols mentioned above are included. In addition, ketones such as acetone and methyl ethyl ketone are included.

Furthermore, the water solubility of these clarifying agents (water-soluble alcohol, water-soluble ketone and water-soluble ether) is particularly preferably 80 g or more in 100 mL of water (20 ° C.). That is, the above-described clarifying agent includes alkyl monools such as methanol, ethanol, 1-propanol, 2-propanol and the like. Furthermore, all the alkyl diols mentioned above are included. Further, ether monools such as 2-methoxyethanol, 2-ethoxyethanol, 2-n-butoxyethanol and all ether diols described above are included. Further, ketones such as acetone and methyl ethyl ketone are included.

The content of these clarifying agents (water-soluble alcohols, water-soluble ketones and water-soluble ethers) is not particularly limited and is preferably contained to such an extent that a sufficient effect can be obtained according to the type. Usually, these clearing agents (water-soluble alcohol, water-soluble ketone and water-soluble ether) are preferably contained in an amount of 0.001 to 0.15% by volume with respect to 100% by volume of the oil-water emulsion. . In this range, the oil-water emulsion is more effectively transparent and the transparency is easily maintained. Moreover, although it may exceed this range, an improvement in effect is hardly recognized. This ratio is more preferably 0.005 to 0.13% by volume, further preferably 0.01 to 0.09% by volume, and particularly preferably 0.015 to 0.045% by volume.

In particular, when 2-propanol is used, it is preferable that 0.001 to 0.16% by volume of 2-propanol is contained with respect to 100% by volume of the oil-water emulsion. In this range, the oil-water emulsion can be more effectively made transparent and the transparency can be easily maintained. Although this range may be exceeded, an improvement in the effect is hardly recognized. Further, the content is more preferably 0.002 to 0.1% by volume, and particularly preferably 0.005 to 0.05% by volume.

When the amine compound and other clarifying agents (water-soluble alcohol, water-soluble ketone and water-soluble ether) are used in combination, the total of the amine compound and other clarifying agent is 100% by volume In addition, the amine compound: other clarifying agent may be in the range of 90% by volume: 10% by volume to 10% by volume: 90% by volume. This ratio is preferably in the range of 90% by volume: 10% by volume to 50% by volume: 50% by volume.

In addition to water, oil, and a clarifying agent, other components can be added to the oil-water emulsion. An emulsifier is mentioned as another component. Various surfactants can be used as the emulsifier. Only one type of surfactant may be used, or two or more types may be used in combination. As the surfactant, an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, and the like can be used.

Examples of the anionic surfactant include sulfonic acid surfactants, sulfate ester surfactants, carboxylic acid surfactants, and phosphate ester surfactants. Examples of the cationic surfactant include aliphatic amine salts and aliphatic ammonium salts.
Further, as nonionic surfactants, ether type surfactants such as polyoxyethylene alkyl ether, ether ester type surfactants such as polyoxyethylene ether of glycerin ester, polyethylene glycol fatty acid ester, glycerin ester, sorbitan ester, etc. And alkanolamide type surfactants such as lauric acid diethanolamide, oleic acid diethanolamide, stearic acid diethanolamide, and coconut oil fatty acid diethanolamide.

Examples of amphoteric surfactants include those having carboxylic acid, sulfate, sulfonic acid and phosphate as the anion moiety and amine and quaternary ammonium as the cation moiety. Specific examples include betaines such as lauryl betaine and stearyl betaine, and amino acid types such as lauryl-β-alanine, stearyl-β-alanine, lauryl di (aminoethyl) glycine, and octyldi (aminoethyl) glycine. .

Among these, nonionic surfactants are preferable, fatty acid alkanolamide type nonionic surfactants are more preferable, and coconut oil fatty acid diethanolamide is particularly preferable.
The content of the emulsifier in the oil-water emulsion is not particularly limited, but is preferably 0.01 part by volume or more (usually 10 parts by volume or less) per 100 parts by volume of water. The content is more preferably 0.05 to 10 parts by volume per 100 parts by volume of water, still more preferably 0.1 to 5 parts by volume, and particularly preferably 0.1 to 1 part by volume.

Furthermore, in addition to water, oil, a clarifying agent, and an emulsifier, another component can be mix | blended with an oil-water emulsion. Another component includes silicate.
Examples of the silicate include metasilicate. Furthermore, the metasilicate is preferably an alkali metal salt. Specifically, sodium metasilicate is preferable. Emulsification can be promoted more efficiently by adding silicate. Although the compounding quantity of this silicate is not specifically limited, Usually, 10 volume parts or less are preferable with respect to a total of 100 volume parts of water and oil. The blending amount is more preferably 0.5 to 8 parts by volume, and particularly preferably 1 to 5 parts by volume.

The “reducing agent contacting step” is a step of bringing the oil-water emulsion into contact with the reducing agent.
Reducing agents include sulfite, bisulfite (bisulfite), hyposulfite, pyrosulfite (metabisulfite), nitrite, thiosulfate, phosphite, hypophosphite, sulphate An acid, hydrogen peroxide, etc. are mentioned. These compounds may be anhydrous or hydrated. Moreover, these reducing agents may use only 1 type and may use 2 or more types together.

Among these reducing agents, sulfite, bisulfite (bisulfite), hyposulfite (dithionate), pyrosulfite (metabisulfite), nitrite, thiosulfate, phosphorous acid Examples of various salts such as salts and hypophosphites include salts with divalent cations and salts with monovalent cations. Examples of the divalent cation include Mg ²⁺ , Ca ²⁺ , Sr ²⁺ , Ba ²⁺ , Zn ²⁺ , Fe ^{2+ and the} like. As the monovalent ^{^{^{cation, Li +, Na +, K}}} +, NH 4 + , and the like.
That is, for example, among the sulfites, examples of salts with divalent cations include magnesium sulfite, calcium sulfite, strontium sulfite, barium sulfite, zinc sulfite, and iron sulfite. Moreover, as a salt by a monovalent cation among sulfites, lithium sulfite, sodium sulfite, potassium sulfite, ammonium sulfite and the like can be mentioned.

Among these divalent cation salts and monovalent cation salts, divalent cation salts are preferred. Since the salt with a divalent cation has lower solubility in water than the salt with a monovalent cation, the amount of the dissolved solution of the reducing agent remaining in the compatible transparent hydrous oil can be suppressed. Specifically, a compound having a solubility in water at 20 ° C. of 1 g / 100 mL or less is preferable. The solubility is more preferably 0.5 g / 100 mL or less (20 ° C.), and particularly preferably 0.2 g / 100 mL or less (20 ° C.). In order to promote the transparency of the oil-water emulsion, the solubility in water is preferably 0.0001 g / 100 mL (20 ° C.) or more from the viewpoint of more effective transparency.
For example, calcium sulfite: 0.0043 g / 100 mL (18 ° C.), barium sulfite: 0.0011 g / 100 mL (20 ° C.), zinc sulfite dihydrate: 0.16 g / 100 mL (20 ° C.), barium phosphite : 0.687 g / 100 mL (20 ° C.) and the like.

Further, among salts with divalent cations, salts with divalent metal ions are more preferable, and calcium salts, barium salts and zinc salts are more preferable, and calcium salts are particularly preferable. Furthermore, among sulfites, bisulfites, hyposulfites, pyrosulfites, nitrites, thiosulfates, phosphites, and hypophosphites, sulfites are particularly preferred. That is, as the reducing agent, calcium sulfite, barium sulfite and zinc sulfite are preferable, and among them, calcium sulfite is preferable.

The contact between the oil-water emulsion and the reducing agent may be performed in any manner as long as the oil-water emulsion becomes transparent as a result. To be transparent means that the transparency of the oil-water emulsion becomes the same or higher than that of the raw oil (oil before mixing with the processed water).
The contact can be performed, for example, by circulating an oil-water emulsion in a container containing a reducing agent. At this time, the reducing agent may be used in any form. For example, it can be used in the form of powder, granules, lumps and the like. In addition, a reducing agent can be supported on a carrier and used. When a reducing agent is supported on a carrier, it can be used in a form in which a powdery or granular reducing agent is supported on the surface of a carrier formed using ceramics, metal or the like. The carrier may be in the form of a ball, net, rod, cone, cube, cuboid, or the like. Furthermore, a porous carrier can be used regardless of the form of the carrier.

When the reducing agent is supported on the carrier, the ratio of the carrier to the reducing agent is not particularly limited. When the total of the carrier and the reducing agent is 100% by volume, the carrier: reducing agent is 10:90 to 90. : 10 (volume%). Among these, from the viewpoint of easily obtaining the effect, the carrier: reducing agent is preferably 10:90 to 50:50 (volume%).
The above-mentioned carrier, its shape, supported amount, etc. can be used in appropriate combination, but in particular, a form in which a reducing ceramic is supported on the surface of this ceramic using a ball-shaped ceramic as a carrier is preferable. : The reducing agent is preferably 10:90 to 50:50 (volume%). In this case, although the size of the reducing agent (the size of the entire particle including the carrier) is not particularly limited, the diameter is preferably 10 mm or less from the viewpoint of easily obtaining an appropriate contact area. 1 to 8 mm is more preferable, and 0.5 mm to 5 mm is particularly preferable.

According to the method for producing a compatible transparent water-containing oil of the first invention, a compatible transparent water-containing oil having a high water content of 30 to 50% by volume can be obtained. Since the unit price of water is smaller than that of oil, the fuel cost per unit volume can be reduced by mixing 30 to 50% by volume of water (processed water) with oil.
Moreover, the compatible transparent hydrous oil obtained by this method can maintain transparency, without oil-water being isolate | separated. Maintaining transparency means that a state in which the milky state cannot be visually recognized can be maintained. More specifically, when the transparency of the raw material oil (oil before mixing with processed water) and the obtained compatible transparent hydrous oil are compared, they are the same or compatible transparent hydrous oil This can maintain a state of high transparency at room temperature (temperature 25 ° C.) for 24 hours or more.

Furthermore, the compatible transparent water-containing oil obtained by the method of the first invention can improve the calorific value in the combustion field. Moreover, since vegetable oil can also be used as fuel oil, the ratio of dependence on conventional fossil fuels can be reduced. Furthermore, it is possible to construct a carbon neutral circulating fuel system using vegetable fuel.

In addition, the compatible transparent hydrous oil obtained by the method of the first invention can reduce the generation amount of CO ₂ , NOx, SOx, etc. by the water content at the time of combustion, thereby suppressing global warming. It can also contribute greatly to the conservation of the global environment. Furthermore, since the hydrated oil produced by the method for producing a compatible transparent hydrated oil of the present invention is made transparent, the commercial value of the product can be increased.

In the manufacturing method of the compatible transparent hydrous oil of the first invention, other steps can be provided in addition to the reducing agent contact step. As other processes, for example, (1) a process of aeration of a liquid to be treated in which oil and water coexist (aeration process), (2) a clarifying agent is added to the liquid to be treated Steps (clarification agent addition step), (3) Step of filtering the liquid to be treated (filtration step), etc. are mentioned (for the details of each step, in the method for producing a compatible transparent hydrous oil of the second invention) Will be described later).

Of these, the air diffusion step (1) is usually performed before the reducing agent contact step. Further, the clarifying agent addition step (2) may be performed before the reducing agent contact step, may be performed after the reducing agent contact step, or may be performed both before and after. Furthermore, the filtration step (3) may be performed before the reducing agent contact step, may be performed simultaneously with the reducing agent contact step, or may be performed after the reducing agent contact step. Furthermore, it may be performed both before and after the reducing agent contact step, or may be performed continuously either before or after the reducing agent contact step.
Among these, as will be described later, the air diffusion step and the reducing agent contact step are performed in this order, and before the air diffusion step, during the air diffusion step, after the air diffusion step and before the reducing agent contact step, and the reduction. It is preferable to perform the clarifying agent addition step in any of the agent contact steps.

2. Method for producing compatible transparent hydrous oil (2)
The method for producing a compatible transparent hydrous oil of the second invention comprises an aeration step, a reducing agent contact step, and a clarifying agent addition step, where the clarifying agent is an amine compound, a water-soluble alcohol, It contains at least one kind of water-soluble ether and water-soluble ether.

The above-mentioned “aeration process” is a process of aeration and emulsification of a liquid to be treated in which oil and water exhibiting a negative oxidation-reduction potential coexist. That is, it is a step of obtaining a treatment containing an oil-water emulsion.

As the “oil”, the “oil” in the method for producing the compatible transparent water-containing oil of the first invention described above can be applied as it is.
The “water exhibiting a negative oxidation-reduction potential” (hereinafter, this water is also referred to as “processed water”) is water whose oxidation-reduction potential exhibits a negative value. This processed water may be (1) substantially composed only of water, and the oxidation-reduction potential thereof may be a negative value. (2) By containing other water-soluble components, the oxidation-reduction potential is reduced. It may be a negative value. In the latter case, the water is usually contained in an amount of 90% by volume or more based on the entire processed water.
As the water constituting the processed water, the “water” in the method for producing the compatible transparent hydrous oil of the first invention described above can be applied as it is.

The phrase “presenting a negative oxidation-reduction potential” means that the potential (mV) measured by an oxidation-reduction potentiometer (ORP meter) is a negative value. Specifically, it may be less than 0 mV, but is preferably less than 0 mV-1000 mV or more, more preferably less than 0 mV-500 mV or more. Since the oxidation-reduction potential of the processing water is a negative value, it is possible to shorten the time for aeration of the liquid to be treated in the aeration process.
In addition, this oxidation-reduction potential shall be a value at the time of using a saturated silver chloride electrode as a reference electrode of an ORP meter.

The negative redox potential may be obtained in any way. Examples thereof include a method for obtaining a negative redox potential by electrolysis, a method for obtaining a negative redox potential by adding other components, and a method for obtaining a negative redox potential by aeration. These methods may use only 1 type and may use 2 or more types together. Further, among the above methods, the method of obtaining a negative redox potential by adding other components includes, for example, a method of adding sodium metasilicate, a method of adding an aqueous solution of hypochlorous acid and / or a salt thereof, and the like. It is done. Moreover, as a method of obtaining a negative oxidation-reduction potential by aeration, there is a method of aeration using an aeration gas containing air in contact with magnetite ore, an aeration gas containing hydrogen, or the like. Of the various methods described above, the method by electrolysis is most preferred. This is because in the method using electrolysis, an oxidation-reduction potential of −500 mV or less can be obtained in a short time, and high production efficiency can be obtained.

The above “treated liquid” is a mixed liquid containing processing water and oil. Although the ratio of the processing water and oil in this to-be-processed liquid is not specifically limited, Usually, the same quantity as the quantity of the processing water contained in the compatible transparent water-containing oil obtained is mix | blended. Specifically, it is preferable to blend so that the processing water is 50 volume% or less (usually 10 volume% or more) with respect to 100 volume% of the liquid to be treated.

Aeration in the aeration process may be performed in any way. That is, for example, the treatment may be performed continuously while the liquid to be treated is diffused, or the treatment may be performed discontinuously using an aeration tank.
The method of FIG. 5 is illustrated as a method performed continuously. In other words, this is a method that uses the flow pipe 29 and a diffuser that is disposed along the flow path of the flow pipe 29 and can diffuse into the flow pipe 29. In this case, as shown in FIG. 5, the air diffuser can include a plurality of air diffusers 25 along the flow path of the flow pipe 29. And aeration can be performed while circulating the liquid to be treated from the upstream side to the downstream side of the flow pipe 29 (in the direction of the arrow in FIG. 5).

On the other hand, FIG. 4 is illustrated as an example of a non-continuous method. That is, it is a method of using the air diffusion tank 21 and performing air diffusion while circulating the liquid 27 to be processed in the air diffusion tank 21. Specifically, the liquid 27 to be processed is taken out of the air diffusion tank 21 from the lower side of the air diffusion tank 21 in which the liquid 27 to be processed is stored and air is diffused, and the taken out liquid 27 to be processed is diffused. By providing the circulation function unit 22 so that it can be re-introduced into the air diffusion tank 21 from above the air tank 21, it is possible to perform air diffusion for a required time while circulating the liquid 27 to be treated.

Furthermore, at the time of this circulation, the process (magnetic iron ore contact process) which makes the to-be-processed liquid 27 circulated contact a magnetic iron ore can further be provided. When this step is provided, the production of the oil-water emulsion can be further efficiently advanced.
In addition, as mentioned above, compared with the method of performing continuously, the method of performing discontinuously is preferable in the viewpoint which can make a compatible transparent water-containing oil manufacturing apparatus small.

In this circulation, it is possible to further provide a process of heating the liquid 27 to be circulated (processed liquid heating process). When this step is provided, the production of the oil-water emulsion can be further efficiently advanced. When heating is performed, the heating may be performed in any manner. For example, when the circulation conduit 221 (see FIG. 1-3) is provided, a heater jacket is wound around the circulation conduit 221 to heat the liquid 27 to be treated that has been circulated in the circulation conduit 221. Further, when the magnetite ore contact step is provided as described above, a heater jacket (95 in FIG. 3) is wound around the magnetite ore contact tank (223 in FIG. 3), and the inside of the magnetite ore contact tank 223 is circulated. The treatment liquid 27 can be heated. Furthermore, by heating the magnetite ore in the magnetite ore contact tank (see FIG. 1C), the liquid 27 to be treated distributed in the magnetite ore contact tank 223 can be heated. In this heating, for example, the liquid 27 to be treated can be heated to a temperature of 40 to 60 ° C.

In addition, as described above, when aeration is performed using an aeration tank, when processing water is introduced into the aeration tank, the inside of the aeration tank into which oil (the total amount is not necessarily required) has been previously added. It is preferable to add the processed water to the aeration tank later while performing aeration. Furthermore, when the processing water is charged, it is preferable that the processing water is sprayed from the upper side of the aeration tank.

The aeration gas used in this aeration process is not particularly limited. For example, air can be used as it is, but an aeration gas containing air in contact with magnetite ore can also be used.
The amount of air diffused in the air diffusion process is not particularly limited, but it is usually preferable to use 100 m ³ / min or more with respect to 100 L of the liquid to be treated in the entire air diffusion process. The amount of air diffused is more preferably 200 to 1000 m ³ / min, more preferably 300 to 600 m ³ / min, with respect to 100 L of the liquid to be treated. Moreover, this aeration gas can be heated and used. By heating the diffused gas, the liquid 27 to be treated in the diffuser tank 21 can be heated. In this case, for example, the liquid 27 to be treated can be heated to a temperature of 40 to 60 ° C.

Further, in the air diffusion process, air can be diffused while the conductor 92 (see FIG. 3) connected to the negative electrode of the DC power supply 91 (see FIG. 3) is in contact with the liquid 27 to be treated. When air diffusion is performed in a state where the conductor 92 connected to the negative electrode of the DC power supply 91 and the liquid to be treated 27 are in contact with each other, the generation of the emulsion can be efficiently advanced. Specifically, the aeration time can be shortened to 1/2 to 1/4. Although the material which comprises the conductor 92 is not specifically limited, A metal, carbon, etc. can be utilized. The DC power supply 91 can be set to a voltage of 30 to 400 V, for example. In addition, when the aeration tank 21 has conductivity such as a metal container, the conductor 92 is disposed so as not to contact the aeration tank 21. Further, the positive electrode of the DC power supply 91 can be grounded.

The above-mentioned “reducing agent contact step” is a step of bringing the liquid to be treated containing the oil-water emulsion obtained through the air diffusion step into contact with the reducing agent. The “reducing agent contact step” in the above-described compatible transparent hydrous oil production method of the first invention can be applied to the “reducing agent contact step” in the compatible transparent hydrous oil production method of the second invention.

The above-mentioned “clarifying agent addition step” includes: a liquid to be treated before the air diffusion step, a liquid to be treated during the air diffusion step, a liquid to be treated after the air diffusion step and before the reducing agent contact step, and the reducing agent contact step. Is a step of adding a clarifying agent to any one of the liquids to be treated.

That is, the addition of the clarifying agent may be performed simultaneously with the aeration process or the reducing agent contact process, or may be performed separately from these processes. Furthermore, it can also carry out continuously over both processes of an aeration process and a reducing agent contact process. Moreover, the clarifying agent addition process can also be performed in multiple times. That is, for example, after the clarifying agent is added to the liquid to be treated in the air diffusion process, the clearing agent can be further added to the liquid to be treated in the reducing agent contact process.

In this method, the addition of a clarifying agent can make the oil-water emulsion more effective in the reducing agent contact step. Making transparent means that the transparency of the liquid to be treated containing the oil-water emulsion is set to the same or higher transparency as the raw material oil (oil before mixing with the processing water).

The liquid to be treated in the air diffusion process is a liquid that contains processed water and oil, and these are in the process of becoming an oil-water emulsion by air diffusion. Usually, such a liquid to be treated is in a state where an aqueous layer is observed in the lower layer of the emulsion. In addition, the liquid to be treated after the air diffusion process and before the reducing agent contact process is a liquid that contains processing water and oil, and the whole becomes an oil-water emulsion by air diffusion. Furthermore, the to-be-processed liquid in a reducing agent contact process is a to-be-processed liquid in the middle of transparency by contacting an oil-water emulsion with a reducing agent.

As the clarifying agent used in this clarifying agent addition step, the “clarifying agent” in the method for producing the compatible transparent hydrous oil of the first invention described above can be applied as it is. Moreover, the compounding quantity should just become the numerical range mentioned above as each volume content ratio with respect to an oil-water emulsion.
That is, the liquid to be treated (the liquid to be treated before the air diffusion process, the liquid to be treated during the air diffusion process, the liquid to be treated after the air diffusion process and before the contact with the reducing agent, and the liquid to be treated during the contact with the reducing agent) The amine compound is preferably added in an amount of 0.1 to 10 parts by volume, more preferably 0.5 to 8 parts by volume, and further 1 to 6 parts by volume with respect to 100 parts by volume of any of the liquids to be treated. A volume of 1.5 to 4 parts by volume is preferred. In particular, when only cyclohexylamine is used, it is preferably 0.1 to 5 parts by volume, more preferably 0.2 to 3.5 parts by volume, and particularly preferably 0.5 to 2.5 parts by volume. When cyclohexylamine and triethanolamine are used in combination, 0.1 to 5 parts by volume of the mixture is preferably added, more preferably 0.2 to 3.5 parts by volume, and 0.5 to 2.5 parts by volume. Part by volume is particularly preferred.

Further, when at least one of a water-soluble alcohol, a water-soluble ketone, and a water-soluble ether is used as the clarifying agent, the liquid to be treated (the liquid to be treated before the air diffusion process, the liquid to be treated during the air diffusion process). These clearing agents are used for 100 parts by volume of any one of the treatment liquid, the treatment liquid after the diffusion step and before the reduction agent contact process, and the treatment liquid during the reduction agent contact process. Is preferably added in an amount of 0.1 to 20 parts by volume, more preferably 0.5 to 15 parts by volume, still more preferably 1 to 10 parts by volume, and particularly preferably 1.5 to 5 parts by volume. In particular, when only 2-propanol is used, 0.1 to 20 parts by volume is preferable, 0.2 to 10 parts by volume is more preferable, and 0.5 to 5 parts by volume is particularly preferable. When cyclohexylamine and triethanolamine are used in combination, 0.1 to 5 parts by volume of the mixture is preferably added, more preferably 0.2 to 3.5 parts by volume, and 0.5 to 2.5 parts by volume. Part by volume is particularly preferred.

The manufacturing method of the compatible transparent hydrous oil of this 2nd invention can be equipped with other processes other than an aeration process, a reducing agent contact process, and a clarifying agent addition process. An example of the other process is a filtration process.
The “filtration step” is a step of filtering the liquid to be treated obtained so far simultaneously with the reducing agent contact step or after the reducing agent contact step. In the air diffusion process, slimy components may be generated in the liquid to be treated. By performing the filtration step, such slimy components can be removed.

The filtration in the filtration step is usually performed using a filter. Moreover, only one stage of filtration may be performed, and multiple stages of filtration may be performed. When performing multi-stage filtration, filters can be included with different filtration accuracy.
The filtration accuracy of the filter in the filtration step is not particularly limited, but is preferably 1 to 10 μm. In this range, the above-mentioned slime can be removed without re-separating water dispersed in the oil in the air diffusion step. Further, the filtration accuracy is more preferably 2 to 9 μm, and further preferably 3 to 7 μm.

Any filter medium may be used for each filter medium constituting the filter. That is, for example, filter paper may be used, a nonwoven fabric may be used, a stretched porous film may be used, and other filter media may be used. These filter media may use only 1 type and may use 2 or more types together.
In these, it is preferable to use the filter medium which consists of a nonwoven fabric using a resin fiber, and what is called a synthetic fiber paper (For example, the nonwoven fabric of a dry-type manufacturing method) is preferable. The type of resin used for the filter medium is not particularly limited, and olefin resins such as polypropylene, polyester resins such as PET, polyamide resins such as nylon, and cellulose resins such as rayon and acetate can be used. Among these, polypropylene is particularly preferable. That is, for example, polypropylene synthetic paper can be used.

Furthermore, the liquid to be processed may be passed through the filter in any way. That is, for example, the liquid to be treated may be passed through the filter by applying pressure from the upstream side, may be suctioned from the downstream side and passed through the filter, or may be passed using centrifugal force due to rotation. It may be allowed to flow down naturally. In these, it is preferable to flow down naturally and to filter without using pressurization and / or centrifugal force. This is because when pressurized and / or centrifugal force is used, it is feared that the oily water is separated.

According to the method for producing a compatible transparent water-containing oil of the second invention, a compatible transparent water-containing oil having a high water content of 30 to 50% by volume can be obtained. Since the unit price of water is smaller than that of oil, the fuel cost per unit volume can be reduced by mixing 30 to 50% by volume of water (processed water) with oil.
Moreover, the compatible transparent hydrous oil obtained by this method can maintain transparency, without oil-water being isolate | separated. Maintaining transparency means that a state in which the milky state cannot be visually recognized can be maintained. More specifically, when the transparency of the raw material oil (oil before mixing with processed water) and the obtained compatible transparent hydrous oil are compared, they are the same or compatible transparent hydrous oil This can maintain a state of high transparency at room temperature (temperature 25 ° C.) for 24 hours or more.

Furthermore, the compatible transparent hydrated oil obtained by the method of the second invention can improve the calorific value in the combustion field. Moreover, since vegetable oil can also be used as fuel oil, the ratio of dependence on conventional fossil fuels can be reduced. Furthermore, it is possible to construct a carbon neutral circulating fuel system using vegetable fuel.

In addition, the compatible transparent hydrous oil obtained by the method of the second invention can reduce the generation amount of CO ₂ , NOx, SOx, etc. by the water content during combustion, thereby suppressing global warming. It can also contribute greatly to the conservation of the global environment. Furthermore, since the hydrated oil produced by the method for producing a compatible transparent hydrated oil of the present invention is made transparent, the commercial value of the product can be increased.

3. Compatible transparent hydrous oil production apparatus The compatible transparent hydrous oil production apparatus of the present invention is the compatible transparent hydrous oil production apparatus 1 for the production method of the first invention or the second invention, It is characterized by comprising a diffuser means 2 for performing gas, a reducing agent contact means 3 for performing a reducing agent contact step, and a clarifying agent adding means 7 for adding a clarifying agent.

The “aeration unit (2)” includes an aeration tank 21. The air diffusion tank 21 is a tank that can store the liquid 27 to be processed and can diffuse the liquid 27 to be processed. Further, the aeration is performed by discharging a gas from a diffused gas 24 accommodated in the bottom of the aeration tank 21.
The aeration tank 21 is usually supplied with oil from the oil supply means 5 and supplied with water or processed water from the oil supply means 4.
Among these, the oil supply means 5 can include an oil storage tank 51 for storing the oil 55. The oil stored in the oil storage tank 51 can be supplied to the aeration tank 21 via the oil supply conduit 52. The oil supply line 52 is further provided with a flow meter 53 and a pump 54 to adjust and monitor the amount of oil supplied to the aeration tank 21.

On the other hand, the water supply means 4 can include a water storage tank 41 for storing water 49 (or processed water 49). The water stored in the water storage tank 41 can be supplied to the aeration tank 21 via the water supply pipe 45. The water supply line 45 is further provided with a flow meter 47 and a pump 46 to adjust and monitor the amount of water supplied to the aeration tank 21.
Furthermore, a spray charging unit (spray head) 48 can be provided at the end of the water supply pipe 45 on the side of the air diffusion tank 21. As a result, the processed water 49 can be sprayed into the aeration tank 21. By supplying the spray, the efficiency of air diffusion in the air diffusion tank 21 can be improved, and the time for generating the oil-water emulsion can be shortened.

The water supply means 4 may have only a water supply function, but can have a function of processing water into processed water. That is, it is possible to provide means for applying a negative oxidation-reduction potential by electrolyzing water (not shown). Specifically, the processed water can be obtained by electrolyzing the water (water before processing) supplied to the water storage tank 41 via the water supply pipeline 42 in the tank.

On the other hand, in order to supply the gas (aeration gas) 26 to the air diffusion means 2, the air supply means 6 can be provided. The air supply means 6 is connected to the air diffuser 21 and is connected to the air diffuser 24 accommodated in the bottom of the air diffuser 21. Furthermore, a valve 63 and a flow meter 64 can be provided in the air supply line 25 that connects the air supply means 6 and the diffuser tank 21. Thereby, adjustment and monitoring of the supply amount of the gas 26 to the diffuser tank 21 can be performed.
Further, the air supply means 6 can be provided with means for heating the gas 26. By heating and using the gas (aeration gas), the liquid 27 to be processed in the air diffusion tank 21 can be heated (eg, heated so that the liquid to be processed has a temperature of 40 to 60 ° C.). Examples of the means for heating the gas 26 include a heater jacket wound around an air supply line 25 through which the gas 26 is circulated (not shown). By providing such a heater jacket in the air supply line 25, the gas 26 flowing through the air supply line 25 can be heated.
Further, as shown in FIG. 3, a gas preparation tank 62 filled with magnetite ore 61 is provided, and the gas 26 can pass through the gas preparation tank 62. Thereby, the air contacted with the magnetite ore 61 can be supplied as the gas 26.

Further, it is preferable that the air diffusion means 2 includes a circulation function unit 22. The circulation function part 22 is a part where the liquid 27 to be treated can be taken out from the lower part of the air diffusion tank 21 to the outside and re-introduced into the tank from the upper part of the air diffusion tank 21. Specifically, as illustrated in FIG. 1 to FIG. 3, a circulation pipe 221 is connected to the lower part of the air diffusion tank 21, and the liquid 27 to be treated is taken out from the air diffusion tank 21. A configuration in which the liquid to be processed 27 can be circulated to the upper part is preferable. By providing the circulation function unit 22, the liquid 27 to be treated can be efficiently diffused, and the time required for the aeration process can be shortened. In the circulation function unit 22, a pump 225 and a flow meter (not shown) can be disposed in the circulation pipe 221. Furthermore, by providing the valve 222, it is possible to switch whether the liquid to be treated that is circulated in the circulation conduit 221 is circulated to the aeration tank 21 or circulated to the reducing agent contact means 3 described later. .

In the present apparatus 1, a magnetite contact tank 223 for bringing the liquid to be circulated into contact with the magnetite ore can be provided in the circulation function unit 22 (see FIG. 3). When the liquid to be treated and the magnetite ore 224 circulated in the circulation function unit 22 are brought into contact with each other, the emulsion can be generated more efficiently. As illustrated in FIG. 3, the magnetite ore contact tank 223 can be provided by being connected to the circulation conduit 221.

In addition, when the above-described circulation function unit 22 is provided, the present apparatus 1 can include a heating unit that heats the liquid 27 to be processed. When the heating means is provided, the liquid 27 to be treated can be heated, and the generation of the emulsion can be promoted more efficiently. A heating means can be equipped with a heating means as the heater jacket 95 wound around the magnetite ore contact tank 223, for example. In this case, it is possible to heat the liquid 27 to be processed flowing in the magnetite ore contact tank 223 (for example, to heat the liquid to be processed at a temperature of 40 to 60 ° C.). Furthermore, the magnetite ore 224 in the magnetite ore contact tank (see FIG. 3) can be heated.

Further, the present apparatus 1 can include a conductor 92 connected to the negative electrode of the DC power supply 91 (see FIG. 3). The conductor 92 is disposed so as to be in contact with the liquid 27 to be treated when air is diffused, so that the generation of the emulsion can be promoted more efficiently. The DC power supply 91 can be set to a voltage of 30 to 400 V, for example.

The “reducing agent contact means (3)” includes a reducing agent contact tank 31 and a reducing agent 32 filled therein. The liquid to be treated can be made transparent by bringing the liquid 27 to be treated into contact with the reducing agent 32 in the reducing agent contact tank 31.
And the reducing agent contact means 3 can be arrange | positioned in the front | former stage of the filtration means 8 separately from the filtration means 8 so that it may be illustrated by FIG. Further, as illustrated in FIG. 1, it can be disposed inside the filtering means 8. That is, the reducing agent contact tank 31 itself is provided with an opening through which the liquid 27 to be processed can pass (for example, an opening that can be leached from the entire circumference of the tank 31), so that the liquid 27 to be processed that is in contact with the reducing agent 32. Can be discharged from the reducing agent contact tank 31 and further filtered by the filtering means 8 and taken out.

The reducing agent 32 can be used, for example, in a form in which a reducing agent is supported on the surface of a porous ceramic porous carrier. When the reducing agent is used in a form in which the reducing agent 32 is supported on the surface of the porous ceramic granular carrier, as described above, the diameter (the size of the entire particle including the carrier is selected from the viewpoint of easily obtaining an appropriate contact area. ) Is preferably 10 mm or less, more preferably 0.1 to 8 mm, and particularly preferably 0.5 mm to 5 mm.

Further, when such a reducing agent 32 (a granular supported reducing agent) is used, the reducing agent 32 can be held and used in the reducing agent contact tank 31. Specifically, the oil / water emulsion is introduced from the inlet of the reducing agent contact tank 31 (usually the reducing agent contact tank 31 includes an inlet and an outlet), and the oil / water emulsion and the reducing agent 32 are mixed in the reducing agent contact tank 31. The reducing agent contact step can be performed in the reducing agent contact means 3 by contacting and discharging the oil-water emulsion from the outlet of the reducing agent contact tank 31.
In this case, the reducing agent contact tank 31 can be filled with the reducing agent 32 as it is, but may be filled by other methods. For example, a sheet obtained by attaching a reducing agent 32 (granular supported reducing agent) to one or both surfaces of the main surface of the resin sheet is wound in a roll shape, and this wound sheet is placed in the reducing agent contact tank 31. Can be filled. When the reducing agent 32 is attached to a resin sheet wound in a roll shape, the oil / water emulsion is inefficient in fluidity compared to a single water while the oil / fat emulsion is sufficiently in contact with the reducing agent 32. Can handle well. That is, effective contact between the oil-water emulsion and the reducing agent can be realized at a high processing speed.

The “clarifying agent adding means (7)” is a means for adding the clarifying agent 75 to the liquid 27 to be treated. As described above, the addition of the clarifying agent 75 includes the liquid to be processed before the air diffusion process, the liquid to be processed during the air diffusion process, the liquid to be processed after the air diffusion process and before the reducing agent contact process, and the reducing agent. This is performed for at least one of the liquids to be processed during the contact process. Accordingly, the clarifying agent addition means 7 may be any means that can add a clarifying agent to at least one of the liquids to be treated at the addition time. Among these, in FIG. 1 to FIG. 3, the transparentizing agent 75 can be added to the liquid to be processed during the air diffusion process and / or the liquid to be processed after the air diffusion process and before the reducing agent contact process. The agent addition means 7 is illustrated.

The clarifying agent addition means 7 includes a clarifying agent storage tank 71 for storing the clarifying agent 75 as illustrated in FIG. 1-3. Further, a clearing agent supply pipe 72 (connected to the circulation pipe 221 in FIGS. 1 to 3) for supplying the clearing agent 75 to a predetermined supply point is provided. Further, a pump 74 and a flow meter (not shown) for sending the clearing agent 75 from the clearing agent storage tank 71 can be provided. Further, a valve 76 for selecting whether or not to supply the clearing agent 75 to the circulation conduit 221 can be provided.

The apparatus of the present invention can include other means in addition to the air diffusion means 2, the reducing agent contact means 3, and the clarifying agent addition means 7. As another means, the filtration means 8 which performs the filtration (filtration process) mentioned above is mentioned.

The filtration means 8 is not particularly limited as long as the filtration means 8 can perform filtration. For example, as illustrated in FIGS. 1 to 3, the filter 81 and an extraction conduit 83 for taking out the compatible transparent hydrous oil are used. Can be provided. Moreover, the filter 81 may be provided with only one, and may be provided with two or more. When a plurality of filters are provided, it is possible to perform the filtration by introducing the liquid 27 to be processed into another filter without waiting for the completion of the filtration of one filter, and the rate limiting due to the filtration rate can be alleviated in the entire apparatus. Moreover, when providing a some filter, each filter can also be used properly according to the kind of oil, respectively.

The internal structure of the filter is not shown in FIG. 1 to FIG. 3, but, for example, using a polypropylene synthetic fiber, the filtration accuracy (particle diameter at which filtration efficiency is 90% in a liquid in which seven types of dust of JIS Z8901 are mixed) However, a filter member having a size of about 5 μm can be accommodated.

Moreover, in this apparatus 1, when the circulation function part 22 is provided, the circulation function part 22 can be provided with the static mixer 226 (refer FIG. 3). The static mixer 226 only needs to be disposed in the circulation function unit 22, and the installation position is not particularly limited, but is usually downstream of the clarifying agent adding means 7 (a clearing agent is added to the liquid 27 to be treated). After that, it is preferably installed at a position passing through the static mixer 226 (see FIG. 3). In addition, a heater jacket can be wound around the static mixer 226.

The static mixer 226 is a static mixer that does not have a dynamic stirring unit. The static mixer 226 includes a pipe and a plurality of mixing elements arranged in the pipe in a longitudinal direction. Each of these mixing elements has a shape in which a rectangular plate is twisted 180 degrees. The mixing elements are connected so that the twist angles thereof are orthogonal to each other at the end portions. With such a configuration, the liquid 27 to be processed that passes through the static mixer 226 is divided, converted, and inverted, and these processes are repeated to be efficiently emulsified. The number of mixing elements disposed in the pipe is not particularly limited, but is preferably 4 or more. Usually, it is 30 or less. The ratio L / D of the tube length L (mm) to the tube diameter D (mm) is preferably 20 to 200.

Further, in the present apparatus 1, the aeration tank 21 is provided with a liquid cover 28 to be treated on the liquid surface of the liquid 27 to prevent scattering of the liquid 27 to be treated and excessive foaming. Can do. The liquid cover 28 to be processed can be used by floating on the surface of the liquid 27 to be processed. Specifically, a non-woven fabric having air permeability can be used.

The upper limit of the mixing ratio (volume%) of the processing water to the raw material oil of the compatible transparent hydrous oil that can be produced by the present method and apparatus is usually as follows.
Gasoline 30%
Light oil 30%
Kerosene 40%
A heavy oil 40%
C heavy oil 30%
Bunker C heavy oil 30%
Palm oil (including biodiesel fuel) 30%

In particular, vegetable oils such as palm oil generally have a high melting point, unlike mineral oils, and were originally unsuitable for use in winter and cold regions, but the hydrous oil obtained by the method of the present invention has a melting point. Can be lowered to −20 ° C., and the practical value as a fuel oil is increased.

Hereinafter, it demonstrates more concretely using an Example.
[1] Compatible transparent hydrous oil production apparatus <Example 1>
When producing a compatible transparent hydrous oil, the compatible transparent hydrous oil production apparatus 1 shown in FIG. 1 can be used.
The device 1 includes water supply means 4 and oil supply means 5. Among these, the water supply means 4 includes a water storage tank 41,

water supply pipes

42 and 45, a pump 46, a flow meter 47, and a spray charging unit (spray head) 48. On the other hand, the oil supply means 5 includes an oil storage tank 51, an oil supply line 52, a flow meter 53, and a pump 54, can further store processed water 49 in the water storage tank 41, and can store oil 55 in the oil storage tank 51. .
The processed water 49 stored in the water storage tank 41 passes through the water supply pipe 45, the pump 46, and the flow meter 47 and is charged into the diffuser tank 21 from the spray charging unit 48. Further, the oil 55 stored in the oil storage tank 51 passes through the oil supply line 52, the flow meter 53, and the pump 54 and is introduced into the aeration tank 21.

Furthermore, the device 1 comprises a diffuser means 2. The air diffuser 2 includes an air diffuser 21, a circulation function unit 22, an air diffuser 24, and an air supply conduit 25. The gas 26 is diffused by using the air diffuser 2 in a state where the liquid cover 28 is floated on the surface of the liquid 27 to be processed which has been put into the air diffusion tank 21.
A predetermined flow path is closed by the valve 222 so that the liquid 27 to be treated does not flow into the reducing agent contact means 3 side. And aeration is continued while circulating the liquid 27 to be processed.

Further, the clarifying agent adding means 7 is connected to the circulation pipe 221. The clearing agent adding means 7 includes a clearing agent storage tank 71, a clearing agent supply pipe 72, a pump 74 and a flow meter 73. And while the to-be-processed liquid 27 is circulated in the circulation function part 22, the clearing agent 75 is added with respect to the to-be-processed liquid 27. FIG.

The liquid to be treated in the aeration tank 21 is sampled, and water is not separated and stays in the lower part of the sampled liquid to be treated. Thereafter, a predetermined flow path is opened by the valve 222 so that the liquid 27 to be treated flows into the reducing agent contact means 3, and the liquid 27 to be treated is sent to the reducing agent contact means 3 and the filtering means 8.

A filter medium in the filtering means 8 contains a filter medium. Furthermore, the reducing agent 32 is filled in the filter medium. That is, the filter medium functions as the reducing agent contact tank 31.
The liquid 27 to be treated introduced into the reducing agent contact means 3 comes into contact with the reducing agent 32 and then oozes while being filtered from the inside to the outside of the filter medium. That is, the reducing agent contact step and the filtration step are performed substantially simultaneously. Further, in the reducing agent contact means 3 and the filtration means 8, the liquid 27 to be treated is passed by natural flow without applying pressure, and is made transparent and the slime component is removed.

<Example 2>
When producing a compatible transparent hydrous oil, the compatible transparent hydrous oil production apparatus 1 shown in FIG. 2 can be used.
The compatible transparent hydrous oil production apparatus 1 in FIG. 2 is different from the compatible transparent hydrous oil production apparatus 1 in FIG. 1 in that the reducing agent contact means 3 and the filtering means 8 are separately arranged. That is, in the apparatus 1 of FIG. 2, the reducing agent contact means 3 is disposed upstream, and the filtering means 8 is disposed downstream thereof. The liquid 27 to be treated introduced into the reducing agent contact means 3 is brought into contact with the reducing agent 32, then discharged from the reducing agent contact means 3, sent to the filtering means 8 and filtered.

<Example 3>
When producing a compatible transparent hydrous oil, the compatible transparent hydrous oil production apparatus 1 shown in FIG. 3 can be used.
The compatible transparent hydrous oil production apparatus 1 in FIG. 3 differs from the compatible transparent hydrous oil production apparatus 1 in FIG. 1 in the following five points. That is, (1) the gas preparation means 6 is provided, (2) the conductor 92 connected to the DC power supply 91 is provided, (3) the static mixer 226 is provided, and (4) the magnetite ore 224 is filled. Providing a magnetite ore contact tank 223; and (5) providing a heater jacket 95 wound around the magnetite ore contact tank 223.

Among these, the conductor 92 is a copper conductor 92 connected to a DC power supply 91 of 30V. The conductor 92 is fixed to the air diffusion tank 21 so as not to contact the air diffusion tank 21. Further, a part of the conductor 92 is immersed in the liquid 27 to be processed in the diffusion tank 21 and is brought into contact with the liquid 27 to be processed.
Moreover, the heater jacket 95 is wound around the outer periphery of the magnetite ore contact layer 223 so that the magnetite ore 224 can be heated indirectly. And the to-be-processed liquid 27 distribute | circulated to the magnetite ore contact layer 223 is heated by the magnetite ore 224, and is heated to about 40 degreeC.
By using the compatible transparent hydrous oil production apparatus 1 of FIG. 3, the production time of the compatible transparent hydrous oil can be reduced to 1/3 as compared with the case of using the apparatus of FIG.

<Example 4> Manufacture of compatible transparent hydrous oil The compatible transparent hydrous oil production apparatus 1 shown in Fig. 1 is used to produce a compatible transparent hydrous oil having 70% by volume of light oil and 30% by volume of processed water. .

Light oil is put into the oil storage tank 51, and processed water 49 is stored in the water storage tank 41. The processed water 49 is a liquid in which the redox potential of deionized water (the redox potential is 300 to 500 mV) is set to −700 mV (value measured by an ORP meter at a temperature of 20 ° C.) by electrolysis.
The gas 26 is diffused while the flow rate is adjusted within the upper limit of 400 m ³ / min with the liquid cover 28 to be treated floating on the surface of the light oil (70 L) charged into the air diffuser 21. Next, 30 L of processed water (49) 30L is discharged from the water storage tank 41 from the spray injection unit 48 and is supplied to the aeration tank 21. When the processing water is completely charged, the liquid 27 to be treated is circulated to the circulation function unit 22, and aeration is continued while circulating the liquid 27 to be treated.

While circulating the liquid 27 to be treated, the clarifying agent addition means 7 adds 100 parts by volume of the liquid to be treated, in which cyclohexylamine: methyl alcohol is mixed in a ratio of 20% by volume: 80% by volume. 2 parts by volume are added.
Then, the liquid to be treated in the air diffusing tank 21 is sampled, and the aeration is terminated with reference to the fact that the whole is in an emulsion state without water separating and staying below the sampled liquid to be treated. Then, the liquid 27 to be treated is sent to the reducing agent contact means 3.
The liquid 27 to be treated that passed through the reducing agent contact means 3 and the filtration means 8 was a transparent, compatible, transparent hydrous oil. Further, the obtained compatible transparent hydrous oil can be used as a fuel oil without any problem in an internal combustion engine, and separation of oil and water was not observed in a stationary state.

In addition, when the same operation is performed except that the reducing agent contact step is not performed, the liquid 27 to be processed that has passed through the filtering means 8 may maintain an emulsified state. In this case, when it is allowed to stand, it becomes gradually transparent over about 10 to 24 hours. On the other hand, in Example 4, the to-be-processed liquid 27 which passed the filtration means 8 is in the transparent state by passing through a reducing agent contact process. That is, by providing the reducing agent contact step, the time until the oil-water emulsion becomes transparent can be shortened.

The method for producing a compatible transparent hydrous oil according to the present invention comprises a hydrous oil made from mineral oils (fossil fuels such as petroleum-derived A heavy oil, C heavy oil, bunker C heavy oil, light oil, kerosene, gasoline, etc.) and palm oil. It can be widely used as an oil production method.

1; compatible transparent hydrous oil production apparatus,
2; Air diffusion means, 21; Air diffusion tank, 22; Circulation function part, 24; Air diffused (air diffused to diffuse the liquid to be treated), 25; Air supply line, 26; Gas, 27; Liquid, 28; liquid cover to be treated, 29; flow pipe,
221; circulation pipe, 222; valve, 223; magnetite ore contact tank, 224; magnetite ore, 225; pump,
3; reducing agent contact means, 31; reducing agent contact tank, 32; reducing agent,
4: Water supply means, 41; Water storage tank, 42, 45; Water supply pipe, 46; Pump, 47; Flow meter, 48; Spray injection part (spray head), 49; Water or processed water 5; Oil storage tank 52; oil supply line 53; flow meter 54; pump 55; oil;
6; Air supply means, 61; Magnetite ore, 62; Gas preparation tank, 63; Valve, 64;
7; Clarifying agent addition means, 71; Clarifying agent storage tank, 72; Clarifying agent supply line, 73; Flow meter, 74; Pump, 75; Clarifying agent, 76;
8; Filtration means, 81; Filter, 83; Extraction line,
91; Conductor, 92; DC power supply, 95; Heater jacket.

Claims

A method for producing a compatible transparent water-containing oil, comprising a reducing agent contact step of contacting an oil-water emulsion containing water and oil with a reducing agent.
The method for producing a compatible transparent hydrous oil according to claim 1, wherein the reducing agent contains sulfite.
The method for producing a compatible transparent hydrous oil according to claim 1 or 2, wherein the oil is a fuel oil.
The oil-in-water emulsion contains a clarifying agent,
The compatible transparent hydrous oil according to any one of claims 1 to 3, wherein the clearing agent is at least one of an amine compound, a water-soluble alcohol, a water-soluble ketone, and a water-soluble ether. Production method.
An aeration process for aeration and emulsification of a liquid to be treated in which oil and water exhibiting a negative oxidation-reduction potential coexist;
A reducing agent contact step in which a liquid to be treated containing the oil-water emulsion obtained through the aeration step is brought into contact with a reducing agent;
Liquid to be treated before the air diffusion step, liquid to be treated during the air diffusion step, liquid to be treated after the air diffusion step and before the reducing agent contact step, and liquid to be treated during the reducing agent contact step, A clearing agent addition step of adding a clearing agent to the liquid to be treated,
The said transparentizing agent contains at least 1 sort (s) of an amine compound, water-soluble alcohol, water-soluble ketone, and water-soluble ether, The manufacturing method of compatible transparent hydrous oil characterized by the above-mentioned.
The method for producing a compatible transparent hydrous oil according to claim 5, wherein the reducing agent contains sulfite.
The aeration process is performed in an aeration tank,
While performing the air diffusion, the liquid to be treated in the air diffusion tank is circulated so as to be taken out from the lower part of the air diffusion tank to the outside and re-injected into the tank from the upper part of the air diffusion tank. The method for producing a compatible transparent hydrous oil according to claim 5 or 6.
8. The method according to claim 5, further comprising a filtration step of filtering the liquid to be treated obtained so far simultaneously with the reducing agent contact step or after the reducing agent contact step. A method for producing a compatible transparent hydrous oil.
The method for producing a compatible transparent hydrous oil according to any one of claims 5 to 8, wherein the oil is a fuel oil.
A compatible transparent hydrous oil production apparatus for the method according to any one of claims 5 to 9, wherein the aeration means for performing the aeration.
A reducing agent contact means for bringing the liquid to be treated containing the oil-water emulsion obtained through the aeration means into contact with the reducing agent;
A transparent transparent hydrous oil producing apparatus, comprising: a clarifying agent adding means for adding a clarifying agent.
The air diffuser includes an air diffuser and a circulation function unit,
The said circulation function part is a function part which can take out the to-be-processed liquid in the said air diffusion process out of the tank from the lower part of the said air diffusion tank, and can re-inject into the tank from the upper part of the said air diffusion tank. The compatible transparent hydrous oil production apparatus as described.