KR101567512B1 - Composition for Carbon and Ash Detergent Remover and Manufacturing Method thereof and Cleaning Method thereof - Google Patents

Abstract

The present invention relates to a composition for cleaning carbon and ash to remove impurities including carbon and ash from vehicle parts. The composition comprises water, potassium hydroxide (KOH), sodium xylene sulfonate, fatty amine oxide, diethylene glycol mono-buthyl ether, nitrilotriacetic acid (NTA), polyoxyalkylene alkyl ether, anionic phosphoric compounds, and an antifoaming agent. Therefore, according to the present invention, the capability to remove carbon, ash and the like from vehicle parts more simply, conveniently, and effectively can be enhanced, and damage to vehicle parts can be prevented.

Description

Technical Field The present invention relates to a composition for cleaning carbon and ash (ASH), a process for producing the same, and a cleaning method using the same.

The present invention relates to a composition for cleaning a carbon and an ash, a method for producing the same, and a cleaning method using the same. More particularly, the present invention relates to a composition for cleaning a carbon soot fixed on an automobile part, And a cleaning method using the carbon and ASH cleaning composition.

Vehicles such as cars, buses, trucks, motorcycles, boats, aircraft, and agricultural machines are used as means for moving people or cargo. These moving means are provided with an internal combustion engine so as to move the moving means using various kinds of raw materials. Such an internal combustion engine is mainly divided into a gasoline engine using gasoline and a diesel engine using light oil.

Particularly when the internal combustion engine is used for a long period of time with the fuel as fuel, oxidizing waste such as carbon soot which is generated when the fuel is burned is accumulated in the internal combustion engine and accumulated or mixed with the lubricating oil existing inside the internal combustion engine Mucilage having a high viscosity is formed to pollute the inside of the internal combustion engine.

Internal contamination of the internal combustion engine increases frictional resistance inside the internal combustion engine and causes airtightness and compressibility in the combustion chamber to deteriorate, resulting in incomplete combustion of the fuel. In particular, incomplete combustion of fuel increases fuel consumption and increases the generation of exhaust pollutants and smoke including carbon monoxide and nitrogen oxide, thereby causing serious environmental pollution problems. In particular, the noise of the vehicle body is increased, Which causes degradation of efficiency and shortening of life span.

Thus, many methods for removing contaminants such as sludge and oxidized waste accumulated in the internal combustion engine have been proposed. The most commonly used removal method is to disassemble each component of the internal combustion engine and to remove the attached or fixed contaminants Cleaning, removing, and reassembling parts. That is, it takes a long time to remove contaminants such as sludge and oxidized waste accumulated in the internal combustion engine, and it is not easy to disassemble, or in the case of elaborate parts, it is not easy to thoroughly clean and there is a problem in that it requires a lot of cleaning.

A method for cleaning the internal combustion engine by inserting a cleaning liquid into the internal combustion engine without disassembling the internal combustion engine has been proposed as a method for solving the above problem, and a representative example thereof is a cleaning method using flushing oil. The cleaning method using flushing oil has an advantage in that it can be cleaned without disassembling the internal combustion engine, but it has a disadvantage that only the surface of the dirt is cleaned during cleaning, and as a result, excellent cleaning effect can not be obtained. An example of a cleaning liquid composition used for such cleaning is disclosed in Korean Patent No. 2012-0134675 (Dec. 12, 2012).

An example of a cleaning method of an engine for compensating for a disadvantage of a cleaning method using flushing oil is disclosed in Korean Patent No. 10-0800355 (Jan. 28, 2008).

On the other hand, an exhaust gas recirculation (EGR: Exhaust Gas Recirculation) is used in which a part of the exhaust gas discharged from the internal combustion engine is sent back to the intake side to be mixed with the fuel and air mixer and introduced into the combustion chamber.

When the exhaust gas is recirculated in this manner, the filling rate of the new mixer is lowered and the recirculated exhaust gas contains a larger amount of carbon monoxide (CO) than nitrogen (N), and the rate of temperature rise is low when the same amount of fuel is combusted. In addition, the exhaust gas having a smaller oxygen content than the air is involved in the combustion, so that the combustion rate is decreased and the maximum combustion temperature is lowered. The amount of NOx is then significantly reduced (up to about 60%). However, the amount of HC and CO in the exhaust gas is not reduced.

EGR is effective as a method of reducing NOx. When the exhaust gas is cooled and recirculated, the effect is greater, but the ignitability of the mixture is lowered and the output of the engine is decreased. As the recirculated amount increases, CO, HC and fuel consumption rate in the exhaust gas increase. In addition, if the amount of recirculation is too high, the operating stability of the engine becomes poor. Therefore, it is preferable to selectively control the exhaust gas to be recirculated only in the operating region where the NOx emission amount is large.

In addition, another method for removing NOx from the exhaust material is to use only a catalytic cracking of NOx, or a reduction of NOx using a reducing material.

An ideal solution for NOx abatement is to reduce thermally labile NO- molecules to N2 and O2 using a decomposition catalytic converter (eg, an SCR catalytic converter (Selective Catalyst Reduction Catalyst) without additional reductant) .

It is preferable that impurities such as carbon in the exhaust gas are adhered to the parts used for EGR or the like, and the fixed carbon or the like obstructs the flow or does not smoothly control the valves and the like, thereby removing the carbon.

In addition, a diesel engine is a device that compresses and combusts the fuel and air supplied to the combustion chamber at the same time, and there is a problem of discharging particulate matter that has a long engine life and high durability but seriously affects air pollution.

Particulate matter is usually defined as soot in daily life. It is a very small and light particle of about 0.1 - 0.3μm, which is not completely burned when the fuel is burned. It is a substance that is released into the air and is inhaled into human respiratory tract, .

It has become very important to reduce the emission of particulate matter in accordance with the increasing regulation of exhaust gas emission of automobiles and the like. In response to this, it is necessary to provide a soot purifier or a diesel particulate filter (DPF) A post-treatment device, and a diesel particulate filter) are mounted on the engine exhaust system.

The soot purifier filters the particulate matter contained in the exhaust gas by using a filter to prevent the particulate matter from being released to the atmosphere. When particulate matter of a certain amount or more is filtered in the filter, particulate matter is removed and regenerated. It is preferable that carbon soot or the like is adhered to a pipe forming a flow path in the soot purifying apparatus and the like, and these are removed.

Methods for removing such carbon and ash include a method of burning, a method of cleaning, and the like.

The temperature at which calcium sulfate (CaSO 4) is melted is 1,460 ° C., the temperature at which magnesium oxide (MgO) is melted is 2,832 ° C., the temperature at which magnesium sulfate (MgSO 4) is melted is 1,124 ° C., And the temperature at which zinc phosphate (Zn2 (P2P7)) is melted is 900 DEG C, respectively. The components constituting the DPF are mainly ceramics, and the heat resistance of such ceramics generally ranges from 1,200 to 1,750 ° C. FIG. 7A shows the melting point of the Ash component of the DPF, and FIG. 7B shows the physical and chemical properties of the filter, which is a core component of the DPF. Referring to the data in FIG. 7B , And DPF are classified into two types in terms of materials, the first is the largest mass production, the purifying efficiency is more than 90%, the low price is the ceramic type, the second is the metal type, (SiC) and Cordierite (Ceramics) are classified as ceramics, ceramics, ceramics, ceramics, ceramics, ceramics and ceramics.

Therefore, in order to heat and remove the ash adhered to the DPF, the ash must be heated to a temperature higher than the melting temperature. However, since the ceramic, which is the main component of the DPF, dissolves below the melting point of the ash,

Cleaning method To remove impurities including carbon and ash (ASH) adhered to the parts of the DPF, the differential pressure sensor of the DPF is opened, the detergent is injected, the engine is operated at a high speed, It is common to remove impurities such as carbon or the like, remove the DPF from the vehicle, and burn off impurities using gas combustion.

However, there is a problem in that the ash is not completely removed from the conventional method of opening the sensor, pushing the cleaning agent from the front, pushing it back and forth, or burning the impurities by burning the gas.

In order to solve such problems, it is most preferable to remove impurities adhered to automobile parts such as DPF by separating the DPF and the like from the automobile, immersing in the cleaning liquid for a certain period of time and then washing to remove impurities. One of the cleaning agents for cleaning is disclosed in Japanese Patent No. 1497879, which is invented and registered by the present inventor.

However, the prior art is excellent in cleaning power, and due to the chemical action of the components of the cleaning agent, there is a risk of causing damage or deterioration of the carrier or washcoat of the filter in the DPF, which is subject to cleaning in long-term use.

It is an object of the present invention to provide a composition for cleaning carbon and ash that can improve the ability of removing carbon and ash adhered to automobile parts more simply and conveniently and effectively prevent damage or damage to automobile parts, And to provide a manufacturing and cleaning method.

Another object of the present invention is to provide a composition for cleaning carbon and ash, which is simple and convenient to use and operation, and a method for producing and cleaning the same.

It is still another object of the present invention to provide a composition for cleaning a carbon and an ash, which can increase the cleaning effect, a manufacturing method thereof, and a cleaning method.

It is an object of the present invention to provide a composition for cleaning carbon and ash cleaning for removing impurities including carbon and ash adhered to automobile parts, which comprises water, potassium hydroxide (KOH), sodium xylene sulfonate, , Fatty Amine Oxide, Diethylene Glycol Mono Buthyl Ether, Nitrilotriacetic Acid, Polyoxyalkylene Alkyl Ether, Anionic, Phosphoric compound, antifoaming agent, and the like.

In addition, it is preferable to add the above-mentioned potassium hydroxide to the water, cool it, and then mix the remaining components.

The amount of the water is 55 to 65 wt%, the amount of the potassium hydroxide is 13.5 to 6.5 wt%, the amount of the sodium xylene sulfonate is 5.2 to 5.8 wt%, the content of the parathyroid oxide is 2.6 to 3.4 wt%, the diethylene glycol monobutyl The ether is preferably 2.6 to 4.5 wt%, the nitrilotriacetic acid is 2.7 to 3.4 wt%, and the remainder is the polyoxyalkylene alkyl ether, the anion compound and the defoaming agent.

It is another object of the present invention to provide a method for manufacturing a composition for cleaning carbon and ash for removing impurities including carbon and ash adhered to automobile parts including a DPF, which comprises mixing water with potassium hydroxide (KOH) After the step (1) of cooling and the step (1) are completed, sodium xylene sulfonate, fatty amine oxide, diethylene glycol mono buthyl ether, nitrile A process for producing a carbon and an ash cleansing composition comprising the steps of mixing NTA, Nitrilotriacetic Acid, Polyoxyalkylene Alkyl Ether, Anionic Phosphoric Compound and Antifoaming Agent Is also achieved by a manufacturing method.

The amount of the water is 55 to 65 wt%, the amount of the potassium hydroxide is 13.5 to 16.5 wt%, the amount of the sodium xylene sulfonate is 5.2 to 5.8 wt%, the content of the parathyroid oxide is 2.6 to 3.4 wt%, the diethylene glycol monobutyl The ether is preferably 2.6 to 4.5 wt%, the nitrilotriacetic acid is 2.7 to 3.4 wt%, and the remainder is the polyoxyalkylene alkyl ether, the anion compound and the defoaming agent.

On the other hand, the object of the present invention is also to provide a method for removing impurities including carbon and ash adhered to automobile parts comprising the DPF with the carbon and ash cleansing composition (hereinafter referred to as " composition " The method comprising: separating the automobile part from an automobile and immersing the automobile part in a container containing the composition for a target time; An impurity containing carbon and ash separated by the composition by passing water through an upstream portion where exhaust gas is taken in from a downstream portion of exhaust of the exhaust gas of the automobile component by taking out the automobile component from the container, (2) washing; And a step (3) of spraying air in the same direction as in the step (2) to remove water. The present invention also provides a cleaning method using the composition.

Therefore, according to the present invention, it is possible to improve the ability of removing carbon and ash fastened to automobile parts more easily and conveniently, and to prevent damage or damage to automobile parts, And a method of manufacturing and cleaning thereof.

In addition, it is possible to provide a composition for cleaning carbon and ash which is simple and convenient to use and operation, and a method of manufacturing and cleaning thereof.

In addition, it is possible to provide a composition for cleaning carbon and ash, which can increase the cleaning effect, and a manufacturing method and a cleaning method.

FIGS. 1A and 1B are graphs illustrating a composition of a carbon and an ash cleaning composition according to an embodiment of the present invention and a comparative example of a Selective Catalyst Reduction Catalyst (SCR) catalyst sample, an image enlarged by an electron microscope after cleaning,
FIGS. 2A and 2B are graphs showing carbon and ash cleaning compositions and comparative examples according to an embodiment of the present invention. FIGS. 2A and 2B are photographs of an automobile DOC sample,
FIGS. 3A and 3B are graphs showing carbon and ash cleaning compositions and comparative examples according to an embodiment of the present invention. FIGS. 3A and 3B are photographs of a DPF sample for an automobile,
4 is a schematic flow chart of a method for producing a composition for cleaning carbon and ash according to an embodiment of the present invention
5A is a photograph for explaining an example of an automobile part to be cleaned using the composition according to an embodiment of the present invention,
FIG. 5B is a schematic view for explaining the DPF portion of FIG. 5A in an enlarged manner,
FIG. 6 is a schematic flow chart for explaining a method of cleaning using a composition according to an embodiment of the present invention;
FIG. 7A is a table showing the melting point of the Ash component of the DPF, and FIG. 7B is a table showing the physical properties of the filter, which is a core component of the DPF.

The carbon and ash detergent according to an embodiment of the present invention will be described in detail with reference to FIGS. 1A to 5.

FIGS. 1A and 1B are photographs of a sample of a selective Catalyst Reduction Catalyst (SCR) catalyst and an enlarged image of a cleaned surface of the carbon and ash cleaning composition according to an embodiment of the present invention by an electron microscope. FIGS. 2A and 2B are photographs of an automobile DOC sample and an enlarged image of a cleaned surface by an electron microscope, according to an embodiment of the present invention, and FIGS. 3A and 3B are photographs FIG. 4 is a photograph showing a sample of a DPF sample for automobile and an image obtained by enlarging the surface of the DPF after cleaning according to an embodiment of the present invention. FIG. 5A is a photograph for explaining an example of an automobile part to be cleaned using the composition according to an embodiment of the present invention, and FIG. 5B is a photograph 6A and 6B are schematic flow charts for explaining a method of cleaning using a composition according to an embodiment of the present invention, wherein FIG. 7A is a schematic view for explaining the melting point of the Ash component of the DPF And FIG. 7B is a table showing physical properties of a filter which is a core component of the DPF.

In order to compare the performance and the effect of the cleaning composition for cleaning the impurities including the carbon and the ash (hereinafter referred to as the cleaning composition) according to the present invention with the comparative example including the applicant's conventional cleaning agent, DOC, and DPF samples, which are automobile parts actually used in the exhaust system of the present invention, are immersed in the cleaning composition and the cleaning solution of the comparative example for the same fixed time (4 hours), and then impurities adhering to the surface are washed or cleaned. Were observed with an electron microscope in order to identify the damage or damage including the cracks on the surface of the samples due to the chemical action of the sample.

<Embodiment Display No. '1-1'>

The cleaning composition according to the present invention is prepared by mixing water and a carbon cleaning stock solution of a cleaning composition other than water as shown in FIG.

Herein, the carbon and the ash solution for washing are selected from the group consisting of potassium hydroxide (KOH), sodium xylene sulfonate, fatty amine oxide, diethylene glycol monobutyl ether, It is preferable to include NTA, Nitrilotriacetic Acid, Polyoxyalkylene Alkyl Ether, Anionic Phosphoric Compound and Antifoaming Agent.

First, when water and potassium hydroxide are mixed, heat is generated in this process, and the mixture is slowly mixed and waits until it is cooled to room temperature (S110).

Next, the mixture of water and potassium hydroxide is mixed with the remaining carbon and ashing washingsuch as sodium xylene sulfonate, fatty amine oxide, diethylene glycol mono buthyl ether (Nitrilotriacetic Acid), Polyoxyalkylene Alkyl Ether, Anionic Phosphoric Compound and Antifoaming Agent are mixed and mixed at a predetermined ratio (S130).

As a specific example, the cleaning composition is prepared by mixing 70 g of potassium hydroxide in 500 g of water and cooling to room temperature. After that, 30 g of sodium xylene sulfonate, 20 g of phthalimine oxide, 10 g of diethylene glycol monobutyl ether, , 10 g of polyoxyalkylene alkyl ether, 20 g of an anionic compound, 30 g of an anionic compound, and 10 g of a defoaming agent were added in the order, and then mixed to prepare a final cleaning composition. Refers to the number attached to the sample) is &quot; 1-1 &quot; as shown in Table 1 and Figs. 1A to 3B.

The inventors of the present invention have conducted extensive tests to examine the composition of the cleaning composition according to the present invention in a wide range. As a result, it has been found that the water content is 55 to 65 wt%, the potassium hydroxide is 13.5 to 16.5 wt%, the sodium xylene sulfonate , 2.6 to 4.5 wt% of diethylene glycol monobutyl ether, 2.7 to 3.4 wt% of nitrilotriacetic acid, and the balance of polyoxyalkylene alkyl Ether, an anion, and a defoaming agent. Here, it is preferable that the polyoxyalkylene alkyl ether is in the range of 6.5 to 7 wt%, the anion compound is in the range of 6.5 to 7 wt%, and the defoamer is in the range of 0.3 to 1.2 wt%.

Here, potassium hydroxide serves as a strong alkali infiltrant, sodium xylene sulfonate serves as a solvent to dissolve oil components, and parathyroid oxide serves as a surfactant. Diethylene glycol monobutyl ether dissolves oil components as a solvent, The compounds, which are lactic acetic acid and anion, function to block metal ions, the polyoxyalkylene alkyl ether functions as an emulsifier, and the defoaming agent acts to remove air bubbles.

&Lt; Comparative Example 1 >

The cleaning solution of Comparative Example 1 was prepared by mixing the cleaning solution disclosed in Patent Registration No. 1497879, which was invented and registered by the inventor of the present invention, in a ratio of 500 g of water to a solution of 200 g of carbon and an ash cleaning solution. Here, the raw materials for washing with carbon and ashes were 23 wt% of polyoxyethylene alkyl ether, 23 wt% of monoethanolamine, 3 wt% of ethylenediaminetetraacetic acid, 28 wt% of solvent, 15 wt% of pattyamine oxide and 8 wt% of caustic soda.

&Lt; Comparative Example 2 >

The cleaning liquid of Comparative Example 2 was prepared by changing the ratio of water in Comparative Example 1 to 200 g / 100 g of the cleaning liquid, and setting the amount of each component to be 50% of Comparative Example 1. In Table 1, And the stock solution mixing ratio is indicated as 50% of Comparative Example 1. [

&Lt; Comparative Example 3 >

In the cleaning liquid of Comparative Example 3, first, 70 g of potassium hydroxide was mixed with 500 g of water and cooled to room temperature.

Subsequently, sodium xylene sulfonate was not added, and 20 g of the phthalimine oxide, 10 g of diethylene glycol monobutyl ether, 10 g of nitrilotriacetic acid, 20 g of the polyoxyalkylene alkyl ether and 30 g of the anion compound And then mixed.

&Lt; Comparative Example Display No. '4 &

In the cleaning liquid of Comparative Example 4, potassium hydroxide was not added to 500 g of water, 70 g of sodium silicate, 30 g of sodium xylene sulfonate, 20 g of phthalimine oxide, 1 g of diethylene glycol monobutyl ether, 10 g of nitrilotriacetic acid, 20 g of the polyoxyalkylene alkyl ether and 30 g of the anion compound were added in the order, and then mixed.

The portion indicated by the black dot (&amp; cirf &amp;) at the leftmost end of the samples in FIGS. 1A to 3B indicates that the original sample was not treated with the cleaning liquid.

These examples and comparative examples are summarized in Table 1 below.

When each sample was immersed in the cleaning solution of these Examples and Comparative Examples and the photographs in which the surface state was magnified by an electron microscope at each magnification were compared, it was found that the surface after cleaning by the example in all the samples was higher than the surface Is less damaged or damaged and the state is the best.

Therefore, according to the present embodiment, it is possible to improve the ability to remove carbon and ash fastened to automobile parts more simply and conveniently, and to prevent damage or damage to automobile parts, And a method for producing the same.

In addition, it is possible to provide a composition for cleaning carbon and ash that is simple and convenient to use and operation, and a method for producing the same.

A method of cleaning using a composition for cleaning carbon and ash according to an embodiment of the present invention will be described in detail with reference to FIGS. 5A and 6.

First, for example, as shown in Fig. 5A, the DOC and the DPF described above are built in automobile parts in an automobile exhaust system.

Here, the DOC is attached with less impurities than the DPF and the DOC is typically more vulnerable to chemicals as described above.

Further, when the structure of the DPF is further enlarged, as shown in FIG. 5B, an inlet channel through which the exhaust gas flows and a channel through which the exhaust gas flows out are separated from each other by a filter, and each channel is closed.

With this structure, the exhaust gas passes through the DOC region, which is the upstream side of the exhaust gas containing the impurities, carbon and ash, and the DPF region, which is the downstream side where the exhaust gas is discharged, and the impurities are collected in the DOC region and the DPF region, The efficiency of the filter is reduced. Here, if necessary, the DPF region may contain a catalyst.

A method of cleaning an automobile part having such a structure with the above-described composition will be described in detail with reference to FIG.

(S210) of separating the automobile part from the automobile and immersing the automobile part in a container containing the composition for a target time, and extracting the automobile part from the container to exhaust the exhaust gas from the downstream part of the automobile part (S230), and the air is sprayed in the same direction as that of the step S230 to remove the water (S250).

In the step (S210), the upstream region, which is the direction in which the exhaust gas flows, is not immersed in the composition, and the downstream side in which the exhaust gas is discharged is immersed in the container containing the composition for the first target time, So that part of the upstream side is not immersed in the composition. This is because the DOC portion on the upstream side is chemically weak and the impurities are accumulated on the DPF side more chemically and the DPF side is relatively strong. Another reason is that the cleaning composition is saved to be.

In this case, the total length of the automobile parts is preferably about 2/3 in the composition. This is because, as described above, there is a weak point that the DOC located on the upstream side of the exhaust gas is chemically weak.

Here, the first target time is preferably about 20 minutes. This is because, even if immersed in the composition for longer than this time, the degree of impurity removal / cleaning relative to time is not proportional. If the automotive parts are immersed in the composition for a shorter period of time, the efficiency of removing / cleaning the impurities sharply decreases.

In addition, it is preferable that after the step (S230), the upstream side and the downstream side of the automobile parts are turned upside down so that the upstream side is immersed in the composition, so that the composition is immersed in the composition for the second target time. This is because the DOC on the downstream side is chemically weak as described above. Here, it is preferable to immerse the second target time for about 2 minutes, which is about 1/10 of the first target time, and this time is the same as the reason why the first target time is set to 20 minutes.

Then, as described above, when the water is flowed from the downstream side to the upstream side in the direction opposite to the flow of the exhaust gas, the separated impurities can be very easily washed away. In this case, pressurized water to which constant pressure is applied may be used.

Finally, water and remaining impurities are ultimately removed using high-pressure air in a direction opposite to the flow of the exhaust gas, which is the direction of washing with water.

Therefore, according to the present invention, it is possible to more easily remove impurities, eliminate the factors that impair the effect of the filter by damaging the filter or impurities in the filter, thereby increasing the efficiency of the filter, And it has an effect of protecting specific substances such as contained catalysts.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . The scope of the invention will be determined by the appended claims and their equivalents.

Claims (8)

A composition for cleaning carbon and ash for removing impurities including carbon and ash adhered to an automobile part including a DPF,
Water, potassium hydroxide (KOH), sodium Xylene Sulfonate, Fatty Amine Oxide, Diethylene Glycol Mono Buthyl Ether, Nitrilotriacetic Acid A polyoxyalkylene alkyl ether, an anionic phosphoric compound, and an antifoaming agent. 2. The carbon and ash cleaning composition according to claim 1, wherein the polyoxyalkylene alkyl ether is a polyoxyalkylene alkyl ether.
The method according to claim 1,
Wherein the potassium hydroxide is added to the water, and the remaining components are mixed after cooling. The method according to claim 1,
Wherein the water is 55 to 65 wt%, the potassium hydroxide is 13.5 to 16.5 wt%, the sodium xylene sulfonate is 5.2 to 5.8 wt%, the phe- tianamine oxide is 2.6 to 3.4 wt%, the diethylene glycol monobutyl ether is 2.6 to 4.5 wt% of the polyoxyalkylene alkyl ether, 2.7 to 3.4 wt% of the nitrilotriacetic acid, and the remainder is the polyoxyalkylene alkyl ether, the anion and the defoaming agent. A method for manufacturing a composition for cleaning carbon and ash for removing impurities including carbon and ash adhered to an automobile part including a DPF,
(1) mixing water with potassium hydroxide (KOH) and cooling it;
After the step (1) is completed, sodium xylene sulfonate, fatty amine oxide, diethylene glycol monobutyl ether, NTA, nitrilotriacetic acid A polyoxyalkylene alkyl ether, an anionic phosphoric compound, and an antifoaming agent. The method of manufacturing a carbon and ash cleaning composition according to claim 1, 5. The method of claim 4,
Wherein the water is 55 to 65 wt%, the potassium hydroxide is 13.5 to 16.5 wt%, the sodium xylene sulfonate is 5.2 to 5.8 wt%, the phe- tianamine oxide is 2.6 to 3.4 wt%, the diethylene glycol monobutyl ether is 2.6 to 4.5 wt% of nitrilotriacetic acid, 2.7 to 3.4 wt% of nitrilotriacetic acid, and the remainder is the polyoxyalkylene alkyl ether, the anion compound, and the defoaming agent. A cleaning method using the composition for removing impurities including carbon and ash adhered to automobile parts including the DPF with the carbon and ash cleansing composition (hereinafter referred to as "composition") of claim 1,
(1) separating the automobile part from the automobile and immersing it in a container containing the composition for a target time;
An impurity containing carbon and ash separated by the composition by passing water through an upstream portion where exhaust gas is taken in from a downstream portion of exhaust of the exhaust gas of the automobile component by taking out the automobile component from the container, (2) washing;
And (3) removing water by spraying air in the same direction as in the step (2). The method according to claim 6,
In the step (1), the upstream side region into which the exhaust gas flows is not immersed in the composition, and the downstream side from which the exhaust gas is exhausted is immersed in the container containing the composition for the first target time period. &Lt; RTI ID = 0.0 &gt; 1. &Lt; / RTI &gt; 8. The method of claim 7,
(1-2) of inverting the upstream side and the downstream side of the automobile parts after the step (1-1) so that the upstream side is immersed in the composition and immersing the composition in the composition for a second target time period Characterized in that the composition is used for cleaning.

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