JPH09279167A - Regeneration of deteriorated extra heavy oil emulsion fuel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject method capable of efficiently regenerating a deteriorated extra heavy oil emulsion fuel and reusing the fuel in a thermal power station, etc., by adding a specific thickening agent to a prescribed deteriorated extra heavy oil emulsion fuel, adjusting the fuel to a fixed viscosity and subjecting the fuel to shearing treatment. SOLUTION: A deteriorated extra heavy oil emulsion fuel containing >=3% coarse particles having >=150μm particle diameter is mixed with one or more selected from the group consisting of a water-soluble natural polymer such as a polysaccharide derived from a microorganism, having 30,000 to 5,000,000 molecular weight, a water-soluble synthetic polymer such as a polyacrylic acid (derivative) having 30,000-5,000,000 molecular weight and a highly selling clay mineral, adjusted to 400-3,000cp(50 deg.C) emulsion viscosity and then stirred at 1,000-60,000 s<-1> shear rate by using a high-shear type stirring apparatus so that the content of coarse particles having >=150μm particle diameter is made <3% to regenerate the deteriorated extra heavy oil emulsion fuel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for regenerating an O / W type super heavy oil emulsion fuel in a mass transportation means such as a thermal power plant, a combustor for private power generation, a storage tank in a fuel relay station, or a ship.

[0002]

2. Description of the Related Art As fossil fuel resources other than petroleum, coal and LNG, oil sands, bitumens (Orinocotal, Athabasca bitumen, etc.) have received much attention because of their large reserves. In petroleum-based products, a large amount of asphalt or its heat-treatment residues, which is obtained by removing distillate oil such as naphtha and distillate oil, remains. These ultra-heavy oils are oily substances containing about 60 to 70% or more of heavy fractions of 420 to 450 ° C. or higher, which are usually vacuum distillation residues, and do not flow as they are or tens of thousands of centipoise (cp) or more. It has a high viscosity. Therefore, when used as a fuel, there is a problem in handling and atomization unless it is heated to a high temperature such as 280 to 300 ° C., and troubles such as clogging of pipes are likely to occur, and the fuel is extremely difficult to use. Recently, attempts have been made to emulsify this extremely heavy oil, which is difficult to handle, into water to make its viscosity close to that of water. In that case, it is known that the surfactant plays an important role in keeping the emulsion fuel of the super heavy oil emulsified in water in a stable state for a long time.

Emulsions are thermodynamically unstable systems that break down over time. The above-mentioned super heavy oil emulsion fuel also has an unfavorable phenomenon in combustion such that the emulsion is partially broken, that is, deteriorated when it is stored for a long time or transported by ship, and when it is used as a fuel as it is, the unburned content increases. In addition, the liquidity decreases as the deterioration progresses,
The viscosity becomes so high that it cannot be handled as a liquid, making pumping difficult. Therefore, it is an important subject to remake the super heavy oil emulsion fuel deteriorated before combustion into a fuel having good fluidity and a low unburned content, that is, to regenerate the fuel.

In order to solve such a problem, some studies have been made in the past, for example, JP-A-1-135591.
In Japanese Patent Application Laid-Open No. 3-97785, etc.
/ W-type super heavy oil emulsion fuel regeneration method is described. These are methods of regenerating using a surfactant. However, even if the emulsion is regenerated by adding a surfactant, the amount of coarse particles having a particle size of 150 μm or more may not be easily reduced to less than 3%. Further, in the initial deterioration after the emulsion is prepared, the particles are coalesced and become large, and the viscosity of the system is reduced, but when burned, a large amount of unburned matter remains, which is not preferable as a fuel. Therefore, it becomes extremely important to reduce the amount of coarse particles having a particle size of 150 μm or more.

[0005]

Therefore, an object of the present invention is to treat a deteriorated super heavy oil emulsion fuel containing 3%, preferably 5%, more preferably 10% or more of coarse particles having a particle size of 150 μm or more. And the amount of such coarse particles is 3%
It is intended to provide a method for regenerating a deteriorated super heavy oil emulsion fuel which is reduced to less than 1.

[0006]

In view of the above situation, the inventors of the present invention have conducted earnest research on a method for regenerating a deteriorated super heavy oil emulsion fuel, and as a result, have found that a constant thickener is added to the deteriorated super heavy oil emulsion fuel. It has been found that the amount of coarse particles having a particle size of 150 μm or more can be reduced to less than 3% by adding the above-mentioned to adjust the viscosity to a desired value and then stirring the mixture at a constant shear rate. The present invention has been completed based on such facts by further research.

That is, the gist of the present invention is (1) particle size 15
For a deteriorated super heavy oil emulsion fuel containing 3% or more of coarse particles of 0 μm or more, a molecular weight of 30,000 as a thickener
~ 5,000,000 water-soluble natural polymer, molecular weight 3000
A water-soluble synthetic polymer of 0 to 5,000,000 and one or more kinds selected from the group consisting of highly swelling clay minerals are added to give an emulsion viscosity of 400 cp to 3000 cp (50
° C.) and so as to adjust, then stirred at a shear rate of 1000s ^-1 ~60000s ^-1 using a high shear type agitation device, to the content of the particle size 150μm or more coarse particles less than 3% Regeneration method of deteriorated super heavy oil emulsion fuel, (2) Molecular weight 30,000 to 500,000
0, the water-soluble natural polymer is one or more selected from the group consisting of microbial-derived polysaccharides, plant-derived polysaccharides, and animal-derived proteins, the regeneration method according to (1),
(3) A water-soluble synthetic polymer having a molecular weight of 30,000 to 5,000,000 is a copolymer of acrylic acid or a derivative thereof with a homopolymer or a copolymerizable monomer, acrylamide or a derivative thereof with a homopolymer or a copolymerizable monomer, With a homopolymer of maleic anhydride or itaconic anhydride or a copolymer thereof with a copolymerizable monomer, a homopolymer of vinyl alcohol or a copolymer with a copolymerizable monomer, a homopolymer of vinylpyrrolidone or a copolymerizable monomer with The regeneration method according to (1) above, which is one or more selected from the group consisting of a copolymer and a polyalkylene oxide, and (4) a highly swelling clay mineral,
The regeneration method according to (1) above, which is one or more selected from the group consisting of smectite, vermiculite, and chlorite, and (5) the above-mentioned (1) characterized in that a nonionic surfactant is further added to the thickener. )-(4) Regeneration method in any one, (6) Shear rate is 4000 s ^-1 〜 200
The method of regeneration according to (1) to (5) or a 00s ^-1, (7) the concentration of oil in the superheavy oil emulsion fuel is 70 wt% to 80 wt% (1) - ( 6)
Any one of the said (1)-(7) characterized by combining the reproduction | regeneration method in any one, and (8) 1-3 high shear type stirring devices and 1-3 static mixers are combined. About how to play.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In the method of the present invention, a particle size of 150
The viscosity of the emulsion is 400 cp by adding a thickener to a deteriorated super heavy oil emulsion fuel containing 3%, preferably 5%, and more preferably 10% or more of coarse particles of μm or more.
Above, it adjusts to the range of 400-3000cp (50C) preferably. Then, the shear rate is 1000 s ^-1 to 600
This is a method of regenerating the deteriorated emulsion fuel by lowering the content of coarse particles having a particle size of 150 μm or more to less than 3% by stirring at 00 s ⁻¹ .

The oil called super heavy oil in the present invention is an oil that does not flow unless heated to a high temperature, and includes (a) petroleum-based asphalts and mixtures of the oils, and (b) various petroleum-based asphalt treatments. Products, their intermediate products, residues, and oil mixtures thereof, (c) high pour point oils or crude oils that do not flow at high temperatures, (d) petroleum-based tars and oil mixtures thereof, and (e)
Bitumens (Orinoco tar, Athabasca bitumen, etc.) are included. The deteriorated super heavy oil emulsion fuel to which the present invention is applied contains 3% or more of coarse particles having a particle size of 150 μm or more. Usually 3% to 30
%, But if it is 10% or more, a remarkable effect can be obtained by the regeneration method of the present invention. Further, it is suitable that the concentration of the oil in the super heavy oil emulsion fuel is 70% by weight to 80% by weight.

The thickener used in the present invention has a molecular weight of 30,000 or more, preferably 30,000 to 5,000.
000 water-soluble polymers and highly swelling clay minerals. Water-soluble polymers include water-soluble natural polymers and water-soluble synthetic polymers. As the water-soluble natural polymer, specifically, as a microorganism-derived water-soluble polymer, xanthan gum, pullulan, polysaccharides such as dextrin, as a plant-derived water-soluble polymer, seaweed-derived agar, carrageenan,
Seed-derived locust bean gum, guar gum, such as fur cerelan, alginic acid and its Na, K, NH ₄ salts, etc.
Arabian gum, karaya gum, derived from trees, such as tara gum,
Examples include polysaccharides such as pectin derived from fruits such as tragacanth gum. Examples of water-soluble polymers derived from animals include proteins such as gelatin and casein. Furthermore, as the natural polymer derivative, a cellulose derivative,
Processed starch etc. are mentioned.

Examples of water-soluble synthetic polymers include the following. (A) Homopolymers of acrylic acid and its derivatives represented by the general formula (1) and copolymers with other monomers.

[0012]

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In the formula, R ¹ represents H, a methyl group or an ethyl group, M ¹ represents H, Na, K, Li or NH ₄ , and Z ¹
Is CH ₂ ═C (R ¹ ) COOM ¹ or a monomer copolymerizable with this monomer or a salt thereof, for example, maleic anhydride, itaconic anhydride α-olefin, acrylamide, vinylsulfonic acid, allylsulfonic acid, methallylsulfone. A divalent group derived from an acid, acrylamidomethylpropylsulfonic acid or a salt thereof (NH ₄ , Na, K), dimethylethylaminomethacrylate or diethylethylaminomethacrylate and a salt thereof (chlorine, diethylsulfate, dimethylsulfate). Represent (B) Homopolymers of acrylamide and its derivatives represented by the general formula (2) and copolymers with other copolymerizable monomers.

[0014]

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In the formula, R ² represents H, C ₂ H ₄ OH, and Z
² is CH ₂ ═CH—CO—NH—R ² or a monomer copolymerizable with this monomer or a salt thereof (NH ₄ , N
a, K, Li) such as vinyl sulfonic acid, allyl sulfonic acid, methallyl sulfonic acid, acrylamidomethylpropyl sulfonic acid or salts thereof (NH ₄ , Na,
K), dimethylethylaminomethacrylate or diethylethylaminomethacrylate and salts thereof (chlorine, diethylsulfate, dimethylsulfate), styrene, α-olefins (C ₂ -C ₁₈ ), divalent groups derived from vinylallyl alcohol Represents

(C) A homopolymer of maleic anhydride or itaconic anhydride and a copolymer represented by the general formula (3). In the formula, M ³ represents a maleic anhydride or itaconic anhydride residue, Z ³ represents a divalent group derived from α-olefin (ethylene, propylene, butylene, isobutylene, octene, decene, dodecene, etc.) or styrene. Represents

[0017]

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(D) A homopolymer of vinyl alcohol and a copolymer represented by the general formula (4). In the formula, Z ⁴ represents a divalent group derived from vinyl acetate or styrene.

[0019]

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(E) A homopolymer of vinylpyrrolidone and a copolymer represented by the general formula (5). In the formula, Z ⁵ is a monomer copolymerizable with vinylpyrrolidone or a salt thereof (NH ₄ , Na, K, Li), for example, acrylamide,
Vinyl sulfonic acid, methallyl sulfonic acid, maleic anhydride, itaconic anhydride, styrene, α-olefin (C ₂
~ C ₁₈ ) and the like are represented by a divalent group.

[0021]

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(F) Polyalkylene oxide having a molecular weight of 10,000 to 5,000,000 (provided that ethylene oxide is 95% or more).
Also included are those having 5% or less of propylene oxide, butylene oxide, and styrene oxide block polymers, alkylallyl, and alkyl groups in the molecule.
In the above general formulas (1) to (5), n is determined within the range where the molecular weight of the polymer is about 30,000 to 5,000,000. The water-soluble polymers may be used alone or in combination. The amount used is usually 0.001 to 1 part by weight, preferably 0.1 to 100 parts by weight based on 100 parts by weight of the super heavy oil emulsion fuel.
It is from 0.1 to 0.1 parts by weight.

Highly Swelling Clay Mineral The highly swelling clay mineral used in the present invention is capable of capturing a large amount of water molecules when the clay mineral is suspended in water, and is 1 in terms of dry matter. The relaxation time (T ₂ ) of water molecules measured with a nuclear magnetic resonance apparatus when suspended in a weight percentage of 900
It is a highly swelling clay mineral that is less than a millisecond. For example, fine clay minerals such as smectite, vermiculite and chlorite that are highly swellable and have a strong ability to trap water molecules are included in the scope of the present invention. However, among these, T ₂ is 90
Those exceeding 0 ms are not included in the present invention. on the other hand,
Kaolin, talc and the like produced in Georgia (USA) are excluded from the scope of the present invention because of their weak ability to trap water molecules.

The highly swelling fine clay minerals such as smectite, vermiculite and chlorite used in the present invention will be described below. (A) Smectite has a complicated chemical composition because in a 2: 1 layer tetrahedral sheet and octahedral sheet, substitution occurs extensively and various ions accompanied by water molecules enter between the layers. Specifically, it is represented by the following general formula. X _m (Y ²⁺ , Y ³⁺ ) _2-3 Z ₄ O ₁₀ (OH) ₂ .nH ₂ O (where X is K, Na, ＣａCa, ＭｇMg, Y is Y
²⁺ represents Mg, Fe ²⁺ , Mn ²⁺ , Ni, Zn, Li, and Y ^{3+
Represents} Al, Fe ³⁺ , Mn ³⁺ , Cr ³⁺ , and Z represents Si, Al. X represents an interlayer, Y represents an octahedron, and Z represents a tetrahedral cation. )

Typical types of smectites are as follows. 2 Octahedral type (mainly trivalent octahedral cation) Montmorillonite X _0.33 (Al _1.67 Mg _0.33 ) Si ₄ O ₁₀ (OH) ₂ · n
H ₂ O beidellite X _0.33 (Al ₂ ) (Al _0.33 Si _3.67 ) O ₁₀ (OH) ₂
NH ₂ O nontronite X _0.33 (Fe ₂ ³⁺ ) (Al _0.33 Si _3.67 ) O ₁₀ (OH)
₂ · nH ₂ O 3 octahedral type (mainly divalent octahedral cations) saponite X _0.33 (Mg ₃ ) (Al _0.33 Si _3.67 ) O ₁₀ (OH) ₂
NH ₂ O iron saponite X _0.33 (Mg, Fe) ₃ (Al _0.33 Si _3.67 ) O ₁₀ (O
H) ₂ · nH ₂ O hectorite X _0.33 (Mg _2.67 Li _0.33 ) Si ₄ O ₁₀ (OH) ₂ · n
H ₂ O sauconite X _0.33 (Mg, Zn) ₃ (Si _3.67 Al _0.33 ) O ₁₀ (O
H) ₂ · nH ₂ O stevensite X _{0.33 / 2} (Mg _2.97 ) Si ₄ O ₁₀ (OH) ₂ · nH ₂ O Among them, montmorillonite-beidellite-nontronite forms a series, and isomorphous substitution Cause Also,
Stephensite has about half the layer charge of other smectites and has properties intermediate between the dioctahedral and trioctahedral types.

(B) Vermiculite (flint, Ver
miculite) belongs to the 2: 1 type layered silicate,
The chemical formula is represented by the following formula. (Mg, Fe ³⁺ , Al) _2-3 (Si _4-x Al _x ) O
₁₀ (OH) ₂ (M ⁺ , M ²⁺ _1/2 ) _x nH ₂ O Here, M is an exchangeable cation between layers, but Mg is mainly used in coarse-grained vermiculite. n is the amount of water. When the interlayer cation is Mg, water enters in a bimolecular layer over a wide temperature range, and n is about 3.5 to 5. x is the layer charge and falls in the range of 0.6 to 0.9. Although this formula states that all layer charges are caused by the replacement of tetrahedral cations, in practice the octahedral sheet may have a negative charge, which may be due to layer charges. The number of octahedral cations is 2-3, and there are both dioctahedral vermiculite and trioctahedral vermiculite. The coarse-grained vermiculite formed by weathering biotite and phlogopite is trioctahedral.

(C) The structure of chlorite is similar to that of smectite and vermiculite, and the bottom spacing between them is 14 to 15A. A typical chlorite is a 2: 1 type hydrated silicate and can be roughly classified into a trioctahedral chlorite and a dioctahedral chlorite according to the characteristics of the 2: 1 layer. The trioctahedral chlorite is represented by the following formula. (R _6-x ²⁺ R _x ³⁺ ) (Si _4−x Al _x ) O ₁₀ (OH) ₈ where R ²⁺ is mainly Mg and Fe ²⁺ , but Mn ²⁺ , N
i ²⁺ etc. are also included. R ³⁺ is mainly composed of Al, Fe ³⁺ , Cr
Also includes ³⁺ . x shows the value of 0.8-1.6. R
²⁺ is mainly composed of Mg
hlor, (Mg ₅ Al) (Si ₃ Al) O ₁₀ (O
H) ₈ ], those mainly composed of Fe are chamosite [cha
Mosite, (Fe ₅ Al) (Si ₃ Al) O ₁₀ (O
H) ₈ ]. In addition, there is nimite mainly composed of pennantite Ni whose main component is Mn. Sudoite [Sudoite, Sudoite, (Mg, Al) _4.6-5 (Si, A
l) ₄ O ₁₀ (OH) ₈ ], cookeite [cookei
te, (LiAl ₄ ) (Si ₃ Al) O ₁₀ (O
H) ₈ ], donbasite [donbassite, Al
_4-4.2 R _0.2- (Si, Al) ₄ O ₁₀ (OH) ₈ ].

Smectite is composed mainly of montmorillonite, which is a clay mineral to which smectite belongs, and it is called bentonite that contains quartz, α-cristobalite, opal, feldspar, mica, zeolite, calcite, dolomite, gypsum, iron oxide as impurities. It is a thing. Bentonite has N
Although there are sodium bentonite rich in a ion and calcium bentonite rich in Ca ion, sodium bentonite is rich in swelling power, which belongs to the clay mineral of the present invention, and calcium bentonite has weak swelling power. Excluded from

The highly swelling clay minerals may be used alone or as a mixture. The amount used is super heavy oil emulsion fuel 1
It is usually 0.005 to 2.5 parts by weight, preferably 0.02 to 1.0 part by weight, relative to 00 parts by weight. Further, the highly swelling clay mineral and the water-soluble polymer may be used together in an appropriate ratio. When the highly swelling clay mineral and the water-soluble polymer are used in combination, the ratio is preferably 100: 1 to 1: 100. The use of an emulsifier or dispersant as an auxiliary for the thickener may bring about good results in some cases. In addition, the addition of nonionic surfactants to the thickener may sometimes give good results. In this case, the amount of the nonionic surfactant added is 1 to 200% by weight based on the thickener. As the nonionic surfactant used here,
Polyoxyethylene alkyl phenyl ethers are particularly suitable, but common nonionic surfactants that are commercially available can also be used.

The above water-soluble polymer and / or highly swelling clay mineral is added as a thickener to the deteriorated super heavy oil emulsion fuel to increase the viscosity of the emulsion to 400 cp (50).
℃) or more, preferably 400 to 3000 cp (50 ℃)
After adjusting to, a high shear rate is added and stirred.

As the stirring means used in the present invention,
Use one or more high shear agitators. Here, it means a shear rate of usually 1,000～60,000S ^-1 and high shear rates, preferably 3,000～20,000S ^-1
Shear rate, more preferably 4,000 to 20,000
The shear rate is ^{0 s -1} . As the high shear type stirring device, for example, a stirring device having a line mixer, an arrow blade turbine blade, a propeller blade, a bull margin blade, a paddle blade, or the like is preferably used. Furthermore, it is also preferable to combine one or more static mixers in addition to the high shear type stirring device. For example, 1 to 3 high shear stirring devices and 1 to
A combination of three static mixers can be mentioned.
The static mixer is intended to uniformly mix the emulsion, and a general stirrer such as a propeller type stirrer is sufficient, and a high shear rate is not particularly required. By combining this with a high shear type stirring device, the efficiency of high shear can be increased. As for the combination, a general stirrer such as a static mixer and a high shear type stirrer such as a line mixer are combined in series. This is because the thickener and emulsion are mixed well with a static mixer, and then coarse particles are reduced with a high shear type agitator.

A typical embodiment of the present invention is illustrated in FIG. However, other aspects are not excluded.

The ultra-heavy oil emulsion fuel thus regenerated by the regeneration method of the present invention is finally about 3
The viscosity is adjusted to about 00 to 500 cp (50 ° C.), and the content of coarse particles having a particle size of 150 μm or more is reduced to less than 3%, preferably 1% or less, and the content of coarse particles is 2 to 0.
It is used as a product of about 1%, preferably about 0.5 to 0.1%.

[0034]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the present invention.

Example 1 The amount of coarse particles of 150 μm or more is 21% and the viscosity is 203 cp.
(50 ° C.) deteriorated super heavy oil emulsion fuel (asphalt concentration 74%) was regenerated on a pilot scale using the regenerator shown in FIG. That is, the deteriorated emulsion 1 heated to 50 ° C. in the storage tank 2 is quantitatively supplied by the circulation pump 5, the thickener 6 is added, the mixture is heated by the heater 4 and mixed by the static mixer 7, The mixture was stirred by a high shear type stirring device 8 at a shear rate of 6000 s ^-1 . Table 1 shows the obtained results. The viscosity is measured by Haake double cylinder type rotational viscometer RV-2 type (sensor MV-1).
Was measured at 25 ° C. at 100 / sec. Also,
For the amount of coarse particles, a 150 μm component was measured using a wet screen (φ75). That is, 20 g of the emulsion was weighed, poured onto a sieve, washed with water and then dried with a vacuum dryer, and the amount remaining on the sieve after drying was measured to calculate the amount of coarse particles.

As is clear from Table 1, when any of carboxymethyl cellulose, xanthan gum, polyvinyl alcohol or smectite was used as a thickener, the emulsion viscosity before high speed shearing was 59.
Even when adjusted to a range of 0 to 800 cp, the amount of coarse particles having a particle size of 150 μm or more in the obtained emulsion is 21
% To less than 2%, regeneration of ultra heavy oil emulsion fuel was achieved.

[0037]

[Table 1]

Example 2 A deteriorated emulsion fuel was regenerated in the same manner as in Example 1 except that only the high shear rate was used. CMC was used as the thickener, and the viscosity of the emulsion before the regeneration after adding the thickener was 728 cp (50 ° C.). Table 2 shows the results when the emulsion was regenerated by changing the shear rate using this emulsion.

[0039]

[Table 2]

[0040]

EFFECTS OF THE INVENTION According to the present invention, in a plant that handles ultra-heavy oil emulsion fuel, it is possible to provide or consume all of the fuel obtained as a product by installing a regeneration facility.

[Brief description of drawings]

FIG. 1 shows an example of a reproducing apparatus used in the present invention.

[Explanation of symbols] 1 deteriorated emulsion 2 storage tank 3 stirrer 4 heater 5 pump 6 thickener 7 static mixer 8 high shear type stirrer 9 boiler

Front page continued (72) Inventor Toshimitsu Ichinose 5-171-1 Fukahori-cho, Nagasaki-shi, Nagasaki Sanhishi Heavy Industries Ltd. Nagasaki Research Institute (72) Inventor Koichi Sakamoto 2-5-1 Marunouchi, Chiyoda-ku, Tokyo Sanryo Heavy Industries Co., Ltd.

Claims (8)

[Claims] 1. A water-soluble synthetic polymer having a molecular weight of 30,000 to 5,000,000 and a water-soluble natural polymer having a molecular weight of 30,000 to 5,000,000 as a thickener for a deteriorated super heavy oil emulsion fuel containing 3% or more of coarse particles having a particle diameter of 150 μm or more. Addition of one or more selected from the group consisting of high polymers and highly swelling clay minerals gives an emulsion viscosity of 400 cp
To 3000 cp (50 ° C.), and then using a high-shear stirring device, a shear rate of 1000 s ^{−1 to} 6
A method for regenerating a deteriorated super heavy oil emulsion fuel, which comprises stirring at 0000 s ⁻¹ to reduce the content of coarse particles having a particle size of 150 μm or more to less than 3%. 2. The water-soluble natural polymer having a molecular weight of 30,000 to 5,000,000 is at least one selected from the group consisting of microbial-derived polysaccharides, plant-derived polysaccharides, and animal-derived proteins. How to play. 3. A water-soluble synthetic polymer having a molecular weight of 30,000 to 5,000,000 is a homopolymer of acrylic acid or a derivative thereof or a copolymer with a copolymerizable monomer,
Acrylamide or its derivative homopolymer or copolymer with copolymerizable monomer, maleic anhydride or itaconic anhydride homopolymer or copolymer with these copolymerizable monomers, vinyl alcohol homopolymer or copolymerizable monomer The method according to claim 1, wherein the regeneration method is at least one selected from the group consisting of a copolymer of vinylpyrrolidone, a homopolymer of vinylpyrrolidone or a copolymerizable monomer, and a polyalkylene oxide. 4. The highly swelling clay mineral is selected from the group consisting of smectite, vermiculite and chlorite.
The reproducing method according to claim 1, wherein the reproducing method is one or more kinds. 5. The regenerating method according to claim 1, wherein a nonionic surfactant is further added to the thickener. 6. A shear rate of 4000 s ^{-1 to} 20000 s
It is ^-1 , The reproduction | regeneration method of any one of Claims 1-5. 7. The regeneration method according to claim 1, wherein the concentration of the oil in the super heavy oil emulsion fuel is 70% by weight to 80% by weight. 8. 1-3 high shear type stirrers and 1-3
The reproduction method according to any one of claims 1 to 7, wherein a plurality of static mixers are combined.