JP2007277319A - Fuel using oil cake as raw material and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel using oil cakes as a raw material having sufficient calorie as a fuel making the whole of the oil cake as a fuel by effectively using remaining ashes and carbons after burning and not remaining residue of the oil cakes, in relation to making the oil cake into resource as fuel. <P>SOLUTION: The fuel using oil cakes as raw materials is produced in the following processes, a process producing a mixture of the oil cake which is a residue of raw material in a producing process of vegetable oil, with water, a process decomposing and removing slaked lime contained in the mixture, a process decomposing and removing phosphorus and sulfur contents contained in the mixture, a process heating the mixture to separate the oil component and filtering the whole and adding a dehydrating and drying agent to the liquid filtrate, a process removing water by a dehydrating device, and then adding a proteolytic agent, combustion promoter, sludge dispersing agent, sludge modifier to the dehydrated mixture and the filtering them all. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fuel made from oil cake and a method for producing the same. More specifically, when oil slag is recycled as a fuel, it has a sufficient amount of heat as fuel, and residual ash and charcoal after combustion as fuel can be used effectively, leaving no residue of oil slag. It can be used as a fuel.

  In the process of producing fats and oils from plants such as soybeans, oil lees are produced. Oil cake is a highly viscous paste and difficult to handle, so most of it was incinerated without being used. However, researches on how to recycle and effectively use such oil cake have already begun due to increasing awareness of recent environmental issues such as global warming.

  As a method for recycling oil cake, for example, fatty acid is made by using oil cake as a raw material through a necessary process, and this is used as a raw material for industrial products such as soap, or this is used as a fuel. There is a method of manufacturing fuel (see, for example, Patent Documents 1 and 2).

JP-A-2004-91782

JP2004-307543

Although the method for recycling oil bottles described in Patent Documents 1 and 2 is one of the useful options for producing fuel from oil bottles, for example, the following problems are also involved.
In other words, the production of fatty acid esters using oil cake as a raw material involves the chemical reaction of specific components contained in the oil cake with chemicals such as acids or alcohols, and extraction of fatty acid esters produced through various processes. This is due to such a method.

  However, in this method, a lot of oil residue remains apart from the fuel, and as a result, the volume cannot be reduced. Moreover, since these residues have no use, disposal of these residues eventually becomes a problem. Therefore, it cannot be said that it is a sufficient method from the viewpoint of effectively using the oil tank and disposing of the whole.

(Object of the present invention)
It is an object of the present invention to have a sufficient amount of heat as a fuel for reclaiming oil soot as a fuel, and to effectively use residual ash and charcoal after combustion as fuel, leaving a residue of oil soot. It is an object of the present invention to provide a fuel using oil cake as a raw material and a method for producing the same.

Means taken by the present invention to solve the above problems are as follows.
The present invention creates a mixture of oil cake and water, which is a raw material residue in the production process of vegetable oil, decomposes and removes slaked lime contained in the mixture, decomposes and removes phosphorus and sulfur contained in the mixture, and heats Then, the oil is separated and the whole is filtered, a dehydrating desiccant is added to the liquid obtained by filtering, the water is removed with a dehydrating device, and the water is removed to a proteolytic agent, a combustion accelerator, It is a fuel made from oil cake, which can be obtained by adding a sludge dispersant and a sludge modifier and filtering the whole.

  The present invention dilutes oil cake, which is a raw material residue in the production process of vegetable oil, with water to make a mixture, glycerin is added to decompose and remove slaked lime contained in the mixture, and either methoxybutyl acetate or dolomite plaster To decompose and remove phosphorus and sulfur contained in the above mixture, add sodium acetate, heat to separate the oil, filter the whole, and add the dehydration desiccant to the liquid obtained by filtration. It can be obtained by adding and removing moisture with a dehydrator, adding a protein degrading agent, combustion accelerator, sludge dispersant, sludge modifier, and organic degrading agent to the dehydrated one, and filtering the whole The fuel is made from oil cake.

The present invention is a process for producing a mixture of oil cake and water, which is a raw material residue in the production process of vegetable oil,
Decomposing and removing slaked lime contained in the mixture,
A step of decomposing and removing phosphorus and sulfur contained in the mixture;
Heating the slaked lime, phosphorus, and sulfur components to separate the oil and filtering the whole,
A step of adding a dehydrating desiccant to the liquid obtained by filtration,
A step of removing moisture from a dehydrated desiccant added with a dehydrator,
Adding a proteolytic agent to the product from which moisture has been removed,
A step of adding a combustion accelerator to the one added with the proteolytic agent,
A process of adding a sludge dispersant and a sludge modifier to a combustion accelerator added;
Adding a protein degrading agent and an organic degrading agent to a sludge dispersant and sludge modifier added;
Including a step of filtering a whole product to which a protein degrading agent and an organic degrading agent are added to obtain a liquid component,
This is a method for producing fuel using oil cake.

The present invention is a process for producing a mixture of oil cake and water, which is a raw material residue in the production process of vegetable oil,
A step of decomposing and removing slaked lime contained in the mixture by adding glycerin to the mixture,
Adding any of methoxybutyl acetate and dolomite plaster to the mixture to decompose and remove phosphorus and sulfur contained in the mixture;
Adding sodium acetate to slaked lime, phosphorus, and sulfur decomposed and removed,
Heating the sodium acetate added to separate the oil and filtering the whole,
A step of adding a dehydrating desiccant to the liquid obtained by filtration,
A step of removing moisture from a dehydrated desiccant added with a dehydrator,
Adding a proteolytic agent to the product from which moisture has been removed,
A step of adding a combustion accelerator to the one added with the proteolytic agent,
A process of adding a sludge dispersant and a sludge modifier to a combustion accelerator added;
Adding a protein degrading agent and an organic degrading agent to a sludge dispersant and sludge modifier added;
Including a step of filtering a whole product to which a protein degrading agent and an organic degrading agent are added to obtain a liquid component
This is a method for producing fuel using oil cake.

  Oil lees mainly arise from a deoxidation treatment step for removing free fatty acids in the vegetable oil refining step, and are a by-product of the vegetable oil production step. Oil cake is a paste with high viscosity, and there are some fluctuations, but generally 40-50% moisture, 15-20% neutral oil, 30-40% fatty acid soap, About 5 to 15% is included.

  Oil syrup is produced in the production process of various vegetable oils as described above, and is produced in the production process of soybean oil, rapeseed oil, sesame oil, safflower oil, linseed oil, cottonseed oil, palm oil, corn oil, olive oil, etc. Including but not limited to. In addition, the raw material of the oil cake may be a mixture of multiple types of raw materials, other oils such as diglycerides and monoglycerides, various oxidized and reduced, hydrolyzed ones, etc. It may contain a modified oil or fat.

  Examples of the method for removing moisture from the mixture containing oil cake include a method using various dehydration devices such as a rotary heating roll drying device, a drum dryer or a vacuum drum dryer. In addition, for the purpose of improving operability, a solvent can be added to the oil cake. Examples of the solvent include hydrocarbon solvents such as hexane, cyclohexane, toluene, and xylene, and ketone solvents such as MEK, MIBK, and cyclohexanone.

(Function)
The fuel made from oil slag according to the present invention is sufficiently reduced in volume of residual ash and charcoal after combustion, and even if the residual ash or charcoal is disposed of in landfills, there is a quantitative problem. Is unlikely to occur. Residual ash, charcoal, and the like produced by burning as fuel can be used as a sludge coagulating agent, and oil can be finally used without waste.

  According to the present invention, when oil slag is recycled as a fuel, it has a sufficient amount of heat as fuel, and residual ash and charcoal after combustion can also be effectively used without leaving a residue of oil slag. It is possible to obtain a fuel using oil cake as a raw material.

  The present invention will be described in detail based on examples.

(1) Use soybean meal which is a residue in the production process of vegetable oil such as salad oil. Dilute oil cake with water and make a mixture with water by blending as appropriate.
(2) In a first stirring and dissolving device, glycerin (aqueous glycerin 5%) is added to a mixture obtained by diluting the oil cake with water, and slaked lime contained in the slurry (oil cake) of the mixture is decomposed and removed. In addition, slaked lime is used and mixed in the manufacturing process of vegetable oil.

(3) In the second stirring / dissolving device, add 3% of either methoxybutyl acetate or dolomite plaster to the raw material of phosphorus and sulfur contained in the slurry (oil cake) of the mixture. Decompose and remove.
(4) Add 3 to 5% of sodium acetate to the raw material with the phosphorus and sulfur content decomposed and removed, and further heat at 300 ° C. for 3 hours with a heating device to separate the oil content.

(5) The whole heated product (result of (4) above) is filtered.
(6) A dehydrating desiccant (manganese dioxide: 2% diluted acid) is added to the liquid obtained by filtration.
(7) The dehydrated desiccant added is dehydrated while being heated at 90 ° C. in a vacuum vacuum device to remove moisture.

(8) Add cyclopentane (2.5%) as a proteolytic agent to the liquid from which moisture has been removed.
(9) Add a combustion accelerator. The reason why the combustion accelerator is added is to prevent generation of unburned carbon due to incomplete combustion when burned. As the combustion accelerator, dialkylsulfosuccinate (7% additive) of heavy metals (iron, manganese, cobalt, nickel, etc.) such as naphthenic acid and petroleum sulfonic acid is used.

(10) Add a sludge dispersant. The reason why the sludge dispersant is added is to prevent the accumulated volume at the bottom of the sludge storage tank from adhering to the strainer or the heater. As the sludge dispersant, 3% of dialkylsulfosuccinate or petroleum sulfonate is used.
(11) Add a sludge modifier. The reason why the sludge dispersant is added is to maintain the combustion plate so that the combustion plate is not deteriorated and the combustion efficiency is not lowered. As the sludge modifier, a surfactant such as highly basic magnesium (3% of magnesium hydroxide, magnesium carbonate, or magnesium oxide) or a fine particle solvent dispersion is used.

(12) Further, a proteolytic agent and an organic degradation agent are added. As the proteolytic agent and the organic degradation agent, 3% of NN dimethylacetamide or diclopentane is used.
(13) Finally, the whole is filtered to obtain a liquid component, which is used as fuel.

(Function)
The fuel produced in this way meets and conforms to Japanese standards for CO ₂ , SO _x , and NO _x in the combustion gas (see Tables 2 and 3).
In addition, the combustion effect is sufficiently superior compared to fuel equivalent to heavy oil obtained from crude oil (see Table 1). Therefore, the fuel according to the present invention can be used not only as a fuel for a machine for generating heat such as a boiler but also as a fuel for various prime movers.

Furthermore, the filtration residue which is a solid content at the time of filtration can also be used as fuel, and after combustion, residual ash and residual carbon (carbon) can be effectively and completely used as a coagulating sedimentation agent.
Therefore, the effect of preventing global warming by reducing CO ₂ can be expected. In addition, due to volume reduction after combustion, there is no need to bury or dump as waste at the final disposal site.

  As a precipitation coagulant, it is sufficiently effective for purifying rivers, ponds, and factory wastewater. Eventually, pollution caused by combustion gas, which is a problem with volatile fuel, can be incorporated into equipment as a deodorant and adsorbent. Yes. Further, for example, by using contact with calcium oxide, hypochlorous acid, activated carbon, tourmaline stone, titanium oxide, cobalt chloride, etc., air pollution can be considered.

  Table 1 shows the composition data of the fuel (oiled oil) obtained by the above production method.

  As shown in Table 1, the combustion effect of the fuel obtained by the production method according to the present invention is sufficiently superior even when compared with fuel equivalent to heavy oil obtained from crude oil.

Tables 2 and 3 show smoke data when the fuel obtained by the above manufacturing method is burned.
(Facility name House boiler)

As shown in Tables 2 and 3, the fuel obtained by the production method according to the present invention satisfies the Japanese standard reference values for CO ₂ , SO _X and NO _X in the combustion gas, and conforms to this. ing.

  Note that the terms and expressions used in the present specification are merely explanatory and not restrictive, and do not exclude terms and expressions equivalent to the above terms and expressions.

Claims (4)

  Make a mixture of oil cake and water, which is the raw material residue in the production process of vegetable oil, decompose and remove slaked lime contained in the mixture, decompose and remove phosphorus and sulfur contained in the mixture, and heat to remove oil Separating and filtering the whole, adding a dehydrating desiccant to the liquid obtained by filtration, removing moisture with a dehydrating device, proteolytic agent, combustion accelerator, sludge dispersant, A fuel made from oil cake that can be obtained by adding a sludge modifier and filtering the whole.   Dilute oil cake, which is the raw material residue in the vegetable oil production process, with water to make a mixture, add glycerin to decompose and remove slaked lime contained in the above mixture, add either methoxybutyl acetate or dolomite plaster The phosphorus and sulfur content in the above mixture is decomposed and removed, sodium acetate is added, the oil is separated by heating, the whole is filtered, and the dehydration desiccant is added to the liquid obtained by filtration. Remove the water with the equipment, add the protein decomposer, combustion accelerator, sludge dispersant, sludge modifier, organic decomposer to the water that has been removed, and filter the whole oil cake Fuel as raw material. A process for producing a mixture of oil cake and water, which is a raw material residue in the production process of vegetable oil,
Decomposing and removing slaked lime contained in the mixture,
A step of decomposing and removing phosphorus and sulfur contained in the mixture;
Heating the slaked lime, phosphorus, and sulfur components to separate the oil and filtering the whole,
A step of adding a dehydrating desiccant to the liquid obtained by filtration,
A step of removing moisture from a dehydrated desiccant added with a dehydrator,
Adding a proteolytic agent to the product from which moisture has been removed,
A step of adding a combustion accelerator to the one added with the proteolytic agent,
A process of adding a sludge dispersant and a sludge modifier to a combustion accelerator added;
Adding a protein degrading agent and an organic degrading agent to a sludge dispersant and sludge modifier added;
Including a step of filtering a whole product to which a protein degrading agent and an organic degrading agent are added to obtain a liquid component,
A method for producing fuel using oil cake as a raw material. A process for producing a mixture of oil cake and water, which is a raw material residue in the production process of vegetable oil,
A step of decomposing and removing slaked lime contained in the mixture by adding glycerin to the mixture,
Adding any of methoxybutyl acetate and dolomite plaster to the mixture to decompose and remove phosphorus and sulfur contained in the mixture;
Adding sodium acetate to slaked lime, phosphorus, and sulfur decomposed and removed,
Heating the sodium acetate added to separate the oil and filtering the whole,
A step of adding a dehydrating desiccant to the liquid obtained by filtration,
A step of removing moisture from a dehydrated desiccant added with a dehydrator,
Adding a proteolytic agent to the product from which moisture has been removed,
A step of adding a combustion accelerator to the one added with the proteolytic agent,
A process of adding a sludge dispersant and a sludge modifier to a combustion accelerator added;
Adding a protein degrading agent and an organic degrading agent to a sludge dispersant and sludge modifier added;
Including a step of filtering a whole product to which a protein degrading agent and an organic degrading agent are added to obtain a liquid component,
A method for producing fuel using oil cake as a raw material.