KR102237958B1 - Scrubber for cleaning SOx and NOx having multiple shells - Google Patents

Abstract

The present invention relates to a scrubber for treating SOx and NOx having a plurality of shells. An object of the present invention is to provide a scrubber for SOx and NOx treatment having a plurality of shells, which enables effective purification of SOx and NOx while miniaturizing the volume of the device and reducing the amount of power and the use of various agents such as cleaning liquids, oxidizing agents, and absorbents It is in the offering.

Description

Scrubber for cleaning SOx and NOx having multiple shells}

The present invention relates to a scrubber for treating SOx and NOx having a plurality of shells.

A scrubber is a device that collects solid particles, liquid particles, or specific gaseous substances floating in a gas by using a liquid, and is used in various fields in various fields. In particular, in the case of facilities where a large amount of harmful gas is generated during operation, such as a ship or a factory, the discharged harmful gas must be scrubbed and then discharged, so a scrubber is an essential device in such facilities.

Briefly explaining the principle of the scrubber is to disperse the working liquid that is the collecting agent in the gas containing the target particles to be collected, and collide with the particles and droplets, contact the microparticles due to diffusion, and the particles due to increased humidity. Particles are collected into a liquid due to adhesion agglomeration, prevention of re-scattering of trapped particles by the liquid film, and increase in particle diameter due to condensation. The shape of the scrubber is variously implemented, such as a seal type, a centrifugal type, a venturi type, an inertial type, a filter type, a packed column type, a thin film type, and a mechanical type, depending on the liquid dispersion method and the particle collection method. A brief description of the structure of each type of scrubber is as follows. The chamber type scrubber is provided with a plurality of nozzles in an empty chamber or an empty tower, and is formed to collect particles from the baffle plate at the outlet. The centrifugal scrubber is provided with a liquid spraying device in the empty column and is formed to collect particles by centrifugal force by using a gas containing particles as a swirling flow. The venturi-type scrubber uses the principle of atomizing by injecting a liquid into the throat, using the fact that the gas flow rate increases in the throat of the venturimeter. The inertial scrubber is formed in a form in which a horizontal shelf consisting of a perforated plate and a collision plate is installed in a tower, and collects particles by inertia. The filter-type scrubber collects particles with a fibrous filter material. The packed tower scrubber is equipped with a spray nozzle in the packed tower, and the filling is filled in the tower and liquid is sprayed from above and below. The thin-film scrubber is made to make a liquid flow on the collecting surface and make it contact with a gas containing particles. The mechanical scrubber is made to spray a liquid into a gas containing particles by a rotating blade in the device, and it is necessary to use another dust collecting device in combination to collect the scattered liquid droplets.

On the other hand, a scrubber is provided to purify the exhaust gas generated from the fuel-burned engine. Especially, since heavy oil is used as a raw material in ships, a lot of SOx (sulfur oxide) and NOx (nitrogen oxide) are generated. A variety of studies have been conducted to effectively purify SOx and NOx in exhaust gas in scrubbers used in For example, in Korean Patent No. 1680990 ("Combined purification system and method for reducing SOX and NOX in exhaust gas from a combustion engine", 2016.11.23., hereinafter'priority literature'), an exhaust gas purification scrubber and Exhaust Gas Recirculation Scrubbers Two scrubbers are used, but a technology to increase purification efficiency by diversifying the timing of injection of the liquid and alkaline agent circulating in each scrubber is disclosed.

In general, in order to purify SOx, a method such as wet washing with water or an alkali solution, dry method using calcium hydroxide or Na-absorbent is used. In the case of wet type, SOx removal efficiency is high and process reliability is excellent. The disadvantage is that the efficiency is low and the absorbent is expensive. In the case of ships, since seawater has an appropriate alkalinity, in a scrubber provided on a ship, a wet type in which seawater is used as a cleaning liquid is generally used in order to remove SOx in many cases. On the other hand, in the case of NOx, a method in which a reducing agent such as urea, ammonia, carbon monoxide, and hydrocarbons is provided to the exhaust gas and reduced through an oxidation-reduction reaction so that purification is performed is mainly used.

In the case of the exhaust gas in which NOx and SOx are mixed, the principle and agent used to purify each are different. 1 is a conceptual diagram of a conventional scrubber, in which a nozzle for spraying seawater or a reducing agent is provided in a case in which a target gas is circulated (only two are shown for simplicity of the drawing), and a block having an absorbent for purification is also provided. Is shown. However, in the case of such a conventional scrubber, since scrubbing is performed within a single shell as shown in FIG. 1, there is a limitation in effectively purifying both SOx and NOx. More specifically, when seawater is sprayed to remove SOx and a reducing agent is sprayed to remove NOx at the same time, the two agents are mixed and interfered, so that the purification performance for each may be rather reduced.

In order to solve this problem, a method of performing scrubbing using a plurality of scrubbers and a plurality of loops as in the prior literature has also been proposed, but in this case, there are problems such as an increase in the volume of the facility and complicated control.

1. Korean Patent Registration No. 1680990 ("Combined purification system and method for reducing SOX and NOX in exhaust gas from combustion engine", November 23, 2016)

Accordingly, the present invention has been conceived to solve the problems of the prior art as described above, and an object of the present invention is to reduce the volume of the device and reduce the amount of use of various agents such as power and cleaning liquids, oxidizing agents, absorbents, etc., while effective SOx and It is to provide a scrubber for treating SOx and NOx having a plurality of shells that enable purification of NOx.

The scrubber 100 for treating SOx and NOx having a plurality of shells of the present invention for achieving the above object includes: a case 110 having a space formed therein; An inlet 120 for introducing a target gas including SOx and NOx into the lower portion of the case 110; An outlet 130 for discharging the purified target gas to the upper portion of the case 120; 1st, 2nd, 3rd, ... formed to be separated from each other by separating the space inside the case 110. , N shells (141, 142, 143, ..., 14N); The target gas is the first, second, third, ... , N shells (141, 142, 143, …, 14N) formed to sequentially pass through the first, second, ... , N-1 shell flow port (141p, 142p, ..., 14Np); Includes, and each shell may be formed to perform a separate purification operation independent of each other.

At this time, the SOx and NOx treatment scrubber 100 is the first, second, third, ... , N shells (141, 142, 143, …, 14N) formed on at least one selected, and spraying a charged alkaline working liquid to purify the SOx in the target gas by spraying an electrostatic spray (150); The first, second, third, ... , An oxidizing agent nozzle 160 formed in at least one selected from among the N shells 141, 142, 143, …, 14N, and oxidizing NO in the target gas to NO _{2 by spraying a working liquid containing an oxidizing agent;} The first, second, third, ... , N shells (141, 142, 143, …, 14N) is formed in at least one selected from, is formed in the form of a block containing an absorbent to pass through the target gas _{to absorb NO 2} in the target gas absorbent block ( 170); It may further include.

In addition, in this case, the SOx and NOx treatment scrubber 100 includes the target gas, a shell in which the electrostatic sprayer 150 is formed, a shell in which the oxidant nozzle 160 is formed, and a shell in which the absorbent block 170 is formed. It may be formed to be purified while passing sequentially.

As a first embodiment, the SOx and NOx treatment scrubber 100 includes: a first annular wall C1 formed in the case 110 and having a circular cross-section concentric with the case 110; A second annular wall (C2) formed inside the case (110) and having a circular cross-section concentric with the case (110) and formed to surround the first annular wall (C1); A space formed inside the first annular wall (C1) forms the first shell (141), and the space formed between the first annular wall (C1) and the second annular wall (C2) is The second shell 142 may be formed, and a space formed between the second annular wall C2 and the case 110 may form the third shell 143.

At this time, the SOx and NOx treatment scrubber 100 is connected to the inlet 120 below the first shell 141, and the first shell flow port 141p above the first annular wall C1. ) Is formed, the second shell distribution port 142p is formed under the second annular wall C2, and the outlet 130 is connected to the upper part of the case 110, so that the target gas is (120)-The first shell (141)-The first shell distribution port (141p)-The second shell (142)-The second shell distribution port (142p)-The third shell (143)-The outlet It may be formed to pass through (130) sequentially.

As a second embodiment, the SOx and NOx treatment scrubber 100 includes a plurality of horizontal walls P formed horizontally with the upper and lower surfaces of the case 110 and spaced apart from each other in the case 110; It further includes, each space separated by a plurality of the horizontal wall (P) is the first, second, third, ... , N shells 141, 142, 143, …, 14N can be formed.

At this time, the SOx and NOx treatment scrubber 100 is disposed on each of the first, second, ... , N-1 shell distribution ports (141p, 142p, …, 14Np) are formed, and the distribution ports formed in a pair of adjacent shells are formed on opposite sides of each of the horizontal walls (P), so that the target gas is zigzag. It can be formed to proceed.

According to the present invention, a plurality of shells are formed in the scrubber, and SOx removal, NO oxidation, and NO2 absorption are performed sequentially and separately in each shell, thereby reducing the amount of power and the use of various agents such as cleaning liquids, oxidizing agents, absorbents, etc. While it is possible to maximize the purification performance of SOx and NOx.

That is, in the present invention, by forming a plurality of functional shells having different functions in one scrubber, interference between an agent for purifying SOx and an agent for purifying NOx is fundamentally excluded. Accordingly, it is possible to obtain an effect of greatly improving the purification performance of each of SOx and NOx while reducing the amount of the agent used.

As the target gas, which is a target to be scrubbed, passes through a plurality of shells in sequence, when the volume is the same, the flying path of the conventional scrubber, which is a single shell, is greatly increased. Accordingly, according to the present invention, the contact time and the interface area between the target gas and the working liquid are maximized, and thus the purification performance can be further improved.

In addition, according to the present invention, when a plurality of shells are included in one scrubber as described above, the volume of the device can be significantly reduced compared to the prior art when having the same purification performance.

1 is a conceptual diagram of a conventional scrubber.
Figure 2 is a first embodiment of the scrubber of the present invention.
3 is a gas path of the target gas in the first embodiment of the scrubber of the present invention.
4 is a second embodiment of the scrubber of the present invention.
5 is a gas progression path of the target gas in the second embodiment of the scrubber of the present invention.

Hereinafter, a scrubber for treating SOx and NOx having a plurality of shells according to the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings.

[1] Overall composition and operation principle

As described above, in the conventional scrubber, since the space in the scrubber is formed as a single space, there is a problem in that the purification performance for each is rather deteriorated as the agent for SOx treatment and the agent for NOx treatment are mixed and interfered. In addition, in order to purify to a desired degree in a situation where the purification performance is poor, there is a problem in that the amount of use of electric power and an agent is excessively increased.

In the present invention, a plurality of shells are formed in the scrubber, and separate purification operations are performed independently of each other for each shell, thereby solving the above-described problem. That is, among the shells that are isolated from each other, some of the shells mainly purify SOx, and in some other shells, the purifying is performed in the same way. In this way, the problem of deterioration in purification performance caused by mixing and interfering with various agents as described above is fundamentally solved, and as a result, purification performance is greatly improved. In addition, since the factor of deterioration of purification performance due to mixing and interference is eliminated as described above, the amount of power used for purification, the amount of use of agents, etc. can be greatly reduced compared to the prior art, and thus efficiency and economic efficiency can be greatly improved.

A detailed configuration of the scrubber 100 for SOx and NOx treatment of the present invention will be described as follows. The scrubber 100 for treating SOx and NOx of the present invention is basically similar to a conventional scrubber, a case 110 having a space therein, and a target gas including SOx and NOx to the lower portion of the case 110. It includes an inlet 120 for inflow and an outlet 130 for discharging the purified target gas to the upper part of the case 120.

At this time, unlike the conventional scrubber, the scrubber 100 for SOx and NOx treatment of the present invention is divided into a plurality of shells in the case 110, and is formed to perform a separate purification operation independent from each other for each shell. do. More specifically, the scrubber 100 for treating SOx and NOx of the present invention includes first, second, third, ... in which spaces inside the case 110 are separated and formed to be isolated from each other. , N shells (141, 142, 143, …, 14N) and the target gas are the first, 2, 3, ... , N shells (141, 142, 143, …, 14N) formed to sequentially pass through the first, second, ... , N-1 shell distribution ports (141p, 142p, ..., 14Np) are included. First, briefly described, the first embodiment to be described with FIGS. 2 and 3 is an example of dividing the inside of the scrubber into a plurality of annular spaces, and the second embodiment to be described with FIGS. 4 and 5 is a plurality of horizontal spaces within the scrubber. This is an example divided by. Hereinafter, each embodiment will be described in more detail.

In the scrubber 100 for treating SOx and NOx of the present invention, as described above, the inner space is divided into a plurality of shells, and each shell performs a separate purification operation independent of each other. More specifically, in the scrubber 100 for treating SOx and NOx, an electrostatic sprayer 150, an oxidant nozzle 160, and an absorbent block 170 may be selectively provided on each of a plurality of shells. The electrostatic sprayer 150 plays a role of purifying SOx in the target gas by spraying a charged alkaline working liquid, and the oxidant nozzle 160 sprays a working liquid containing an oxidizing agent to generate NO in the target gas. to serve for the oxidation to NO ₂ and the absorber block 170 is formed with a block shape with a built-absorbent by passing the target gas and serves to absorb the NO ₂ in the gas target.

Here, the NOx treatment of the present invention will be described further. As described above, in general, a reducing agent such as urea, ammonia, carbon monoxide and hydrocarbons is used in the NOx treatment. In other words, purification is performed by adding a reducing agent to NOx and removing O from N. On the other hand, in general, most of the NOx contained in the exhaust gas (that is, the target gas to be purified) discharged from facilities such as ships and factories are NO and NO ₂ . Of these, NO ₂ is highly soluble in water, so it can be removed quite easily by simply providing water to the target gas, whereas NO is not well soluble in water. Applying this property, in the present invention, instead of using a reducing agent for NOx treatment, instead of using an oxidizing agent, NO is oxidized to make NO _2, and then it is removed from the target gas by dissolving it in water to perform purification.

Of course, in order to achieve such a smooth operation principle, the SOx and NOx treatment scrubber 100, the target gas, the shell in which the electrostatic sprayer 150 is formed, the shell in which the oxidant nozzle 160 is formed, the It is preferable that the absorbent block 170 is formed to be purified while sequentially passing through the formed shell. When formed in this way, first, the target gas passes through the shell on which the electrostatic sprayer 150 is formed, while excluding the use of agents such as oxidizing agents and absorbents, and the spray characteristics of the electrostatic sprayer 150 and alkalinity of seawater SOx is first removed intensively by using. Next, while the target gas passes through the shell on which the oxidizer nozzle 160 is formed, most of the SOx is removed, and NO in the target gas is oxidized by the oxidizing agent to become NO ₂ . Finally, while the target gas passes through the shell on which the absorbent block 170 is formed, NOx in the target gas _{is changed to NO 2} that is mostly well soluble in water, and is smoothly absorbed by the absorbent, thereby finally removing NOx. .

In this process, since each shell forms an independent space, the oxidizing agent and the absorbent do not interfere with each other, and the substances that are intensively removed for each shell are formed differently, so that only the corresponding substance is removed with maximum efficiency from the shell. Design it. Therefore, according to the present invention, as a result, not only the overall amount of power, the amount of use of an agent, etc. can be significantly reduced, but also the purification performance of each substance can be improved.

In addition, in the present invention, through the configuration of forming a plurality of shells in one scrubber, the volume of the device can be significantly reduced compared to conventionally connecting several separate devices and purifying through several loops. As described above, when the structure of the present invention is introduced, the volume of the device can be miniaturized while maintaining or improving the purification performance, and thus the utility can be greatly improved in fields where device miniaturization is important, such as a ship.

[2] First embodiment

Fig. 2 shows a first embodiment of the scrubber of the present invention. As briefly described above, in the scrubber 100 for treating SOx and NOx according to the first embodiment, the internal space is divided into a plurality of annular spaces. More specifically, the scrubber 100 for treating SOx and NOx according to the first embodiment is formed in the case 110 and has a circular cross-section concentric with the case 110. C1), a second annular wall (C2) formed inside the case 110 and having a circular cross-section concentric with the case 110 and formed to surround the first annular wall (C1). In addition, a space formed inside the first annular wall C1 forms the first shell 141, and a space formed between the first annular wall C1 and the second annular wall C2 is the second shell. A 142 is formed, and a space formed between the second annular wall C2 and the case 110 is formed to form the third shell 143.

Fig. 3 shows a gas traveling path of a target gas in the first embodiment of the scrubber of the present invention. In the first embodiment having the structure as described above, the inlet 120 is connected to the lower part of the first shell 141, and the first shell flow port 141p is connected to the upper part of the first annular wall C1. Is formed, the second shell distribution port 142p is formed under the second annular wall C2, and the discharge port 130 is connected to the upper part of the case 110. According to such a flow path design, the target gas is the inlet 120-the first shell 141-the first shell flow port 141p-the second shell 142 as shown in FIG. 3. -The second shell distribution port (142p)-The third shell (143)-Pass through the discharge port (130) sequentially. In this way, the target gas rises ?? Descent ?? Purification performance can be further improved as the contact time and interface area between the target gas and the working liquid are maximized while going through the ascending path.

In the first embodiment, the inside of the case 110 is divided into three spaces of the first, second, and third shells 141, 142, and 143. At this time, as described above, in the present invention, SOx is first removed using the electrostatic sprayer 150, then NO is oxidized using the oxidant nozzle 160, and finally, the absorbent block 170 Purification is accomplished by the principle of operation of absorbing _{NO 2} by using. Accordingly, as shown in FIGS. 2 and 3, the electrostatic sprayer 150 is disposed in the first shell 141, the oxidizing agent nozzle 160 is disposed in the second shell 142, and the third shell 143 It is preferable to arrange the absorbent block 170 in ).

[3] Second embodiment

4 shows a second embodiment of the scrubber of the present invention. As briefly described above, in the scrubber 100 for treating SOx and NOx according to the second embodiment, the internal space is divided into a plurality of horizontal spaces. More specifically, the SOx and NOx treatment scrubber 100 according to the first embodiment is formed horizontally with the upper and lower surfaces of the case 110 in the case 110, and is disposed to be spaced apart from each other. It further includes a wall (P). In addition, each space separated by a plurality of horizontal walls (P) is the first, second, third, ... , N shells (141, 142, 143, …, 14N) are formed to form.

Fig. 5 shows a gas traveling path of the target gas in the second embodiment of the scrubber of the present invention. In the second embodiment having the structure as described above, the first, second, ... , N-1 shell distribution ports 141p, 142p, ..., 14Np are formed, and distribution ports formed in a pair of adjacent shells may be formed on opposite sides of each of the horizontal walls P. According to such a flow path design, the target gas proceeds in a zigzag as shown in FIG. 5. As the target gas proceeds in zigzag as described above, the purification performance may be further improved in the second embodiment as in the first embodiment, as the contact time and interface area between the target gas and the working liquid are maximized.

In the second embodiment, the inside of the case 110 is the first, second, third, ... , N shells (141, 142, 143, …, 14N) are divided into N spaces. At this time, as described above, in the present invention, SOx is first removed using the electrostatic sprayer 150, then NO is oxidized using the oxidant nozzle 160, and finally, the absorbent block 170 Purification is accomplished by the principle of operation of absorbing _{NO 2} by using. At this time, if the value of N is 3, the electrostatic sprayer 150 is disposed in the first shell 141, the oxidizing agent nozzle 160 is disposed in the second shell 142, and the absorbent is disposed in the third shell 143. Block 170 may be arranged. Alternatively, if the value of N is 3 or more, the electrostatic sprayer 150 may be disposed in lower shells, the oxidant nozzle 160 may be disposed in the middle shells, and the absorbent block 170 may be disposed in the upper shells. 5 is an example in which the value of N is 6, the electrostatic sprayer 150 is provided in two lower shells, the oxidant nozzle 160 is provided in two middle shells, and the absorbent block 170 is provided in two upper shells. ) Shows an example in which it is arranged. Of course, this is only an example, and the number of shells provided with the electrostatic sprayer / oxidant nozzle / absorbent block is not necessarily the same. For example, when the target gas contains a large amount of SOx and a relatively small amount of NOx, the value of N is 4, an electrostatic spray is formed in two shells, and the oxidant nozzle and the absorbent block are each in one shell. Can be formed. In this way, SOx purification can be performed more actively, and thus, it can operate more advantageously when more SOx is included in the target gas.

The first embodiment is different in that the scrubber interior is separated into an annular space, and the second embodiment is separated into a horizontal space. Both embodiments separate the scrubber interior into a plurality of spaces (shells), and each shell It is the same in that separate purification operations are performed without much interference with each other. At this time, in the first embodiment, since the interior of the scrubber is divided into only three spaces, it is easy to intuitively configure the device and design the control. Meanwhile, in the second embodiment, the inside of the scrubber can be divided into as many spaces as desired, and therefore, as in the example of the target gas having a high SOx ratio, the number of each functional shell is appropriately determined according to the ratio of SOx and NOx in the target gas. As a result, it is possible to increase the design freedom and optimize the purification performance for the target gas.

The present invention is not limited to the above-described embodiments, and the scope of application is diverse, as well as anyone with ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications are possible.

100: scrubber for SOx and NOx treatment
110: case
120: inlet
130: outlet
141, 142, 143,… , 14N: 1st, 2nd, 3rd,… , N shell
141p, 142p,… , 14Np: 1st, 2nd,… , N shell distribution port
150: electrostatic sprayer
160: oxidant nozzle
170: absorbent block
C1, C2: first and second annular walls
P: horizontal wall

Claims (7)

A case 110 with a space formed therein;
An inlet 120 for introducing a target gas including SOx and NOx into the lower portion of the case 110;
An outlet 130 for discharging the purified target gas to the upper portion of the case 110;
1st, 2nd, 3rd, ... formed to be separated from each other by separating the space inside the case 110. , N shells (141, 142, 143, ..., 14N);
The target gas is the first, second, third, ... , N shells (141, 142, 143, …, 14N) formed to sequentially pass through the first, second, ... , N-1 shell flow port (141p, 142p, ..., 14Np);
The first, second, third, ... , N shells (141, 142, 143, …, 14N) formed on at least one selected, and spraying a charged alkaline working liquid to purify the SOx in the target gas by spraying an electrostatic spray (150);
The first, second, third, ... , An oxidizing agent nozzle 160 formed in at least one selected from among the N shells 141, 142, 143, …, 14N, and oxidizing NO in the target gas to NO _{2 by spraying a working liquid containing an oxidizing agent;}
The first, second, third, ... , N shells (141, 142, 143, …, 14N) is formed in at least one selected from, is formed in the form of a block containing an absorbent to pass through the target gas _{to absorb NO 2} in the target gas absorbent block ( 170);
Including,
In order to prevent interference between the SOx purifying operation and the NOx purifying operation, separate purifying operations independent of each other are performed for each shell,
The electrostatic sprayer 150, the oxidant nozzle 160, and the absorbent block 170 are disposed in different shells, respectively,
The oxidant nozzle 160 and the absorbent block 170 are arranged so that the target gas sequentially passes through the shell in which the oxidant nozzle 160 is disposed and the shell in which the absorbent block 170 is disposed. Scrubber for SOx and NOx treatment.
delete The method of claim 1, wherein the SOx and NOx treatment scrubber (100),
SOx and NOx, characterized in that the target gas is formed to be purified while sequentially passing through the shell in which the electrostatic sprayer 150 is formed, the shell in which the oxidant nozzle 160 is formed, and the shell in which the absorbent block 170 is formed. Scrubber for processing.
The method of claim 1, wherein the SOx and NOx treatment scrubber (100),
A first annular wall (C1) formed inside the case (110) and having a circular cross-section concentric with the case (110);
A second annular wall (C2) formed inside the case (110) and having a circular cross-section concentric with the case (110) and formed to surround the first annular wall (C1);
It further includes,
The space formed inside the first annular wall C1 forms the first shell 141,
The space formed between the first annular wall (C1) and the second annular wall (C2) forms the second shell 142,
SOx and NOx treatment scrubber, characterized in that the space formed between the second annular wall (C2) and the case (110) forms the third shell (143).
The method of claim 4, wherein the SOx and NOx treatment scrubber (100),
The inlet 120 is connected to the lower part of the first shell 141,
The first shell flow port (141p) is formed on the upper portion of the first annular wall (C1),
The second shell flow port (142p) is formed under the second annular wall (C2),
The discharge port 130 is connected to the upper part of the case 110,
The target gas is the inlet (120)-the first shell (141)-the first shell flow port (141p)-the second shell (142)-the second shell flow port (142p)-the third shell (143)-The scrubber for SOx and NOx treatment, characterized in that formed so as to pass sequentially through the discharge port (130).
The method of claim 1, wherein the SOx and NOx treatment scrubber (100),
A plurality of horizontal walls (P) formed horizontally with the upper and lower surfaces of the case (110) and spaced apart from each other in the case (110);
It further includes,
Each space separated by a plurality of horizontal walls (P) is the first, second, third, ... , N shell (141, 142, 143, ..., 14N), characterized in that to form a scrubber for SOx and NOx treatment.
The method of claim 6, wherein the SOx and NOx treatment scrubber (100),
In each of the plurality of horizontal walls (P), the first, second, ... , N-1 shell distribution ports (141p, 142p, …, 14Np) are formed,
SOx and NOx treatment scrubber, characterized in that the flow holes formed in a pair of adjacent shells are formed on opposite sides of each of the horizontal walls (P) so that the target gas proceeds in a zigzag.

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