KR20200133994A - Adsorption-desorption apparatus having multi layer moving bed and method of processing volatile organic compounds using same - Google Patents

Abstract

The present invention relates to a multi-layer moving bed adsorption-desorption apparatus and a method of processing volatile organic compounds using the same. The multi-layer moving bed adsorption-desorption apparatus comprises: a column housing including an adsorbent injection part and a gas exhaust part at a top surface, and an adsorbent exhaust part and a gas injection part at a bottom surface; a multi-layer moving bed adsorption unit vertically connected in a zigzag pattern from the adsorbent injection part to the adsorbent exhaust part, to have a full inside of an inclined section of the housing, and having a zigzag passage formed by a perforated plate; and an adsorbent detachable part to regenerate absorbent from the adsorbent exhaust part. The gas injection part injects mixed gas including volatile organic compounds. The adsorbent detachable part regenerates absorbent by heating the absorbent using a heating jacket. The absorbent generated from the adsorbent detachable part is injected into the multi-layer moving bed adsorption unit through the adsorbent injection part.

Description

Multi-stage moving bed adsorption and desorption device and treatment method of volatile organic compounds using the same {ADSORPTION-DESORPTION APPARATUS HAVING MULTI LAYER MOVING BED AND METHOD OF PROCESSING VOLATILE ORGANIC COMPOUNDS USING SAME}

The present invention relates to a multistage moving bed adsorption and desorption apparatus and a method for treating volatile organic compounds using the same.

Volatile Organic Compounds (VOCs), along with heavy metals, are substances that belong to certain air-hazardous substances. It is discharged from the printing and painting of small and medium industrial enterprises, chemical product production process or biomass semi-carbonization process, and is an air pollutant that generates morning by combining with fine dust and nitrogen oxides in the atmosphere and causes smog.

Methods of treating volatile organic compounds include combustion, biological treatment, adsorption, and catalytic oxidation.

Since the general VOC activated carbon adsorption tower has a short replacement cycle, maintenance costs are high and management is difficult. To solve this problem, an activated carbon regeneration device is sometimes used. As a representative method, a lot of the rotor method is used, which desorbs VOC at a concentration of up to 15 times to regenerate activated carbon, and the regenerated activated carbon is reused for adsorption. The concentrated VOC is treated through combustion, recovery by condensation, power generation, reforming, etc., and high concentration at a higher concentration is required to reduce treatment costs and convert various energy sources.

For high concentration, the adsorption process and the desorption process must be separated, and the broken adsorbent must be placed in a regeneration device capable of desorption of VOCs at a low flow rate and desorption. In order to continuously operate this, a moving bed adsorption tower and a desorption device are required, it is difficult to apply on-site, and glass management and cost are increased.

The present invention is to solve the above problems, and the adsorption process of the volatile organic compound by the adsorbent and the regeneration process of the adsorbent can be continuously performed, and the process of high concentration adsorption and the treatment of volatile organic compounds can improve efficiency and maintenance cost. It is to provide a multistage moving bed adsorption and desorption device.

The present invention relates to a method for treating volatile organic compounds using the multistage moving bed adsorption and desorption apparatus according to the present invention.

However, the problems to be solved by the present invention are not limited to those mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, a columnar housing including an adsorbent injection unit and a gas discharge unit formed on an upper surface, and an adsorbent discharge unit and a gas injection unit formed on a lower surface thereof; A multi-stage moving bed adsorption unit connected in a vertical zigzag form from the adsorbent injection unit to the adsorbent discharge unit in the housing, occupying the entire inclined cross-section of the housing and having a zigzag path formed of a perforated plate; And an adsorbent desorption unit for regenerating the adsorbent that has passed through the adsorbent discharge unit. Including, wherein the gas injection unit injects a mixed gas containing a volatile organic compound, the adsorbent desorption unit regenerates the adsorbent in a direct or indirect heat exchange method, and the adsorbent regenerated in the adsorbent desorption unit passes through the adsorbent injection unit. It relates to a multistage moving bed adsorption and desorption device, which is re-injected into the multistage moving bed adsorption unit.

According to an embodiment of the present invention, the adsorbent desorption unit may be to regenerate the adsorbent by heating a thermal jacket or desorption through a heat exchange method through a microwave.

According to an embodiment of the present invention, the adsorbent desorption unit may be desorbed at 150°C to 250°C.

According to an embodiment of the present invention, the adsorbent desorption unit may have an adsorbent recovery rate of 90% or more.

According to an embodiment of the present invention, the adsorbent desorption unit may have a desorption efficiency of 90% or more.

According to an embodiment of the present invention, the adsorbent regeneration process of the adsorbent desorption unit and the adsorption process of the multi-stage moving bed adsorption unit may be made of a continuous process.

According to an embodiment of the present invention, an adsorbent storage unit for storing the regenerated adsorbent may be further included, and the adsorbent storage unit may store and cool the adsorbent regenerated in the adsorbent desorption unit.

According to an embodiment of the present invention, in the multistage moving bed adsorption unit, the adsorbent moves along the path and is injected into the gas injection unit to contact the gas moving from the bottom to the top, and the adsorbent is Accordingly, it moves in the direction of gravity, but may be moved through speed control of a rotary valve provided in the adsorbent discharge unit.

According to an embodiment of the present invention, the adsorbent may include at least one selected from the group consisting of activated carbon, silica gel, zeolite, and alumina.

According to an embodiment of the present invention, the gas may move at a mobile bed speed of 50 Nm ³ /min or more.

According to an embodiment of the present invention, the step of injecting an adsorbent into the multi-stage moving bed adsorption unit and moving in the direction of gravity according to a zigzag path of the multi-stage moving bed adsorption unit in the columnar housing; Injecting a mixed gas containing a volatile organic compound into the columnar housing and adsorbing the volatile organic compound by an adsorbent moving along the multi-stage moving bed adsorption unit; Regenerating the adsorbent to which the volatile organic compound is adsorbed; And re-injecting the regenerated adsorbent into the multi-stage moving bed suction unit in the columnar housing. Including, wherein the step, which proceeds in a continuous process, using a multi-stage moving bed adsorption and desorption device, relates to a method of treating volatile organic compounds,

According to an embodiment of the present invention, in the step of adsorbing, gas is injected at a mobile bed speed of 50 Nm ³ /min or more, and the moving speed is adjusted according to the breakthrough time of the adsorbent.

According to an embodiment of the present invention, the step of adsorbing may be a contact between a gas moving from a lower portion to an upper portion of the columnar housing and an adsorbent.

According to an embodiment of the present invention, the regenerating step may be to regenerate with a desorbed gas of 10 Nm ³ /min or less.

According to an embodiment of the present invention, the step of regenerating the adsorbent may be to regenerate the adsorbent by desorbing volatile organic compounds through a direct or indirect heat exchange method.

According to an embodiment of the present invention, the step of regenerating the adsorbent may be desorption at 150°C to 250°C.

According to an embodiment of the present invention, after the step of regenerating the adsorbent, cooling the regenerated adsorbent; may be further included.

The present invention can provide a multistage moving bed adsorption and desorption device capable of adsorbing and desorbing volatile organic compounds (VOCs) with high concentration and regenerating and reusing the adsorbent with high efficiency, and a treatment method of volatile organic compounds using the same. have. In addition, the present invention is advantageously applied to sites requiring high concentration of volatile organic compounds by using the moving bed adsorption and desorption device according to the present invention. By using this, it effectively treats highly concentrated volatile organic compounds in the field, and short-term adsorbent The replacement cycle problem can be improved to reduce maintenance costs and facilitate maintenance.

1 is an exemplary view showing the configuration of a multi-stage moving bed adsorption and desorption apparatus according to the present invention, according to an embodiment of the present invention.
2 is an exemplary diagram showing a configuration of a multi-stage moving bed adsorption/desorption apparatus according to the present invention according to Embodiment 1 of the present invention.
3 is a graph showing the concentration ratio of volatile organic compounds according to the number of repetitions in the moving bed adsorption and desorption experiment according to the present invention according to Example 1 of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms used in the present specification are terms used to properly express a preferred embodiment of the present invention, which may vary depending on the intention of users or operators, or customs in the field to which the present invention belongs. Accordingly, definitions of these terms should be made based on the contents throughout the present specification. The same reference numerals in each drawing indicate the same members.

Throughout the specification, when a member is said to be positioned "on" another member, this includes not only the case where a member is in contact with another member, but also the case where another member exists between the two members.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components.

The present invention relates to a multistage moving bed adsorption and desorption device, according to an embodiment of the present invention, the multistage moving bed adsorption and desorption device, a columnar housing 100 having a multistage moving bed adsorption unit 140, It may include an adsorbent desorption unit 200 and an adsorbent moving pipe 300.

According to an embodiment of the present invention, in the multistage moving bed adsorption and desorption device, the adsorption process by the adsorbent and the desorption process of the adsorbent are continuously and repeatedly performed to adsorb, regenerate and treat volatile organic compounds, such as efficiency and cost. Can be improved.

More specifically, referring to FIG. 1, FIG. 1 exemplarily shows the configuration of a multi-stage moving layer adsorption/desorption apparatus according to the present invention according to an embodiment of the present invention, and in FIG. 1, a columnar housing 100 Silver, an adsorbent injection unit 110 and a gas discharge unit 120 in the upper region, a gas injection unit 130 and an adsorbent discharge unit 150 in the lower region, and a multistage moving bed adsorption unit 140 are provided therein. have.

The adsorbent injection unit 110 is connected to the adsorbent discharge unit 150 through the multistage moving bed adsorption unit 140, introduces the adsorbent (A) into the multistage moving bed adsorption unit 140, and the adsorbent (A) is The multi-stage moving bed adsorption unit 140 may move in the direction of gravity.

The gas discharge unit 120 discharges a gas having an adsorption process through the multi-stage moving bed adsorption unit 140, and the discharged gas may be discharged to the outside through a cyclone or a filtration process.

In the gas injection unit 130, a mixed gas including a volatile organic compound is injected, and the injected gas may be in contact with the adsorbent while moving toward the gas discharge unit 120 in the upper region. That is, the mixed gas containing the volatile organic compound is 50 Nm ³ /min or more; 200 Nm ³ /min or more; 500 Nm ³ /min or more; Alternatively, it may be injected at a mobile bed speed of 50 Nm ³ /min to 1000 Nm ³ /min and moved in the upper direction of the columnar housing 100.

The volatile organic compounds are a generic term for liquid or gaseous organic compounds that are easily evaporated into the atmosphere due to their high vapor pressure, and are also referred to as VOCs (Volatile Organic Compounds). Air pollutants and toxic chemicals with carcinogenic properties include benzene, xylene, acetylene, chloroform, gasoline, and solvents used in industries. For example, the gas containing the volatile organic compound is 1 ppm or more; 10 ppm or more; 100 ppm or more; It may contain a volatile organic compound having a concentration of 500 ppm or 800 ppm or more.

The adsorbent injection unit 110, the gas discharge unit 120, and the gas injection unit 130, respectively, adjust the adsorbent injection rate, gas injection or discharge rate, and, for example, the adsorbent injection unit 110 is a rotary valve The adsorbent injection rate can be adjusted through the like.

The multi-stage moving bed adsorption unit 140 is for adsorbing volatile organic compounds with high concentration by contacting the volatile organic compound and the adsorbent (A), and the adsorbent discharge unit 150 from the adsorbent injection unit 110 in the housing 100 It is connected in a vertical zigzag shape toward the side, occupies the entire interior of the inclined cross-section of the housing, and may have a zigzag path formed of a perforated plate.

The thickness of the multi-stage moving bed adsorption unit 140 is 500 mm or less, and when it is 500 mm or more, it is naturally ignited by heat storage and there is a risk of explosion.

The multistage moving bed adsorption unit 140 is formed of a porous plate, for example, a wire mesh, and the porous plate has a hole smaller than the size of the adsorbent.

The multi-stage moving bed adsorption unit 140 is formed in a zigzag-shaped path, and the adsorbent A moves in the direction of gravity along the path. As the adsorbent (A) moves, a multi-stage shape is formed on each slope, which makes an efficient volatile organic compound with a small amount of adsorbent even if a low concentration of volatile organic compound mixed gas is injected through multiple contact with the gas injected from the bottom. Removal may be possible. The positions of the adsorbent injection unit 110 and the adsorbent discharge unit 150 may be adjusted according to the number of stages of the zigzag adsorption unit. For example, if there are an odd number of adsorption units, they are located alternately, and if there are an even number, they can be located in the same direction. Alternatively, as shown in FIG. 1, it may be located at the center of the lower end of the housing 100.

The adsorbent (A) moves in the direction of gravity along the vertical zigzag movement path, but can move through speed control by a rotary valve provided in the adsorbent discharge unit. In the multi-stage moving bed adsorption unit 140, the adsorbent (A) moves in the direction of gravity, and the speed can be adjusted in the high concentration process of adsorbing volatile organic compounds, and the time for each adsorbent to contact the volatile organic compounds may be 1 second or longer. have. The adsorbent (A) may be one in which the moving speed is adjusted according to the adsorbent breakthrough time.

The adsorbent (A) is discharged to the adsorbent discharge unit 150 formed in the lower region of the housing, and after being regenerated in the adsorbent desorption unit 200, it is re-injected into the adsorbent injection unit 110 to continuously proceed with the adsorption process. .

The adsorbent (A) contains at least one selected from the group consisting of (granular) activated carbon, silica gel, zeolite, and alumina, and is 10 mm or less; 5 mm or less; 0.01 mm to 10 mm; Or it may have a size of 1 mm to 10 mm. Preferably, the adsorbent may have a spherical shape in order to smoothly move the adsorbent in a zigzag-shaped movement path.

The lower end of the columnar housing 100 may be configured in the form of a flat, curved, or narrowed funnel.

As an example of the present invention, the adsorbent desorption unit 200 may include an adsorbent injection unit 210, a gas injection unit 220, a gas discharge unit 230 and an adsorbent discharge unit 250.

The adsorbent desorption unit 200 receives an adsorbent having adsorbed volatile organic compounds passing through the multistage moving bed adsorption unit 140 through an adsorbent discharge unit 130 (connected to the adsorbent injection unit 210), and is volatile. It is possible to regenerate the adsorbent by desorbing volatile organic compounds by direct or indirect heat exchange of the adsorbent adsorbing the organic compound. The adsorbent desorption unit 200 is provided with a heat generating unit 240 and may be heated with, for example, a thermal jacket or a heat exchange method through a microwave to desorb volatile organic compounds.

Adsorbent desorption unit 200, 100 ℃ or more; 150° C. or higher; The adsorbent may be regenerated by desorbing volatile organic compounds at 150°C to 250°C or 150°C to 200°C.

Adsorbent desorption unit 200, 10 Nm ³ /min or less; 5 Nm ³ /min or less; 1 Nm ³ /min or less; Alternatively, the adsorbent can be regenerated at a desorption rate of 0.5 Nm ³ /min or less, and 90% or more; Alternatively, volatile organic compounds can be desorbed with a desorption efficiency of 95% or more. In addition, the adsorbent desorption unit 200, 40 times or more; More than 50 times; More than 85 times; More than 90 times; Alternatively, volatile organic compounds can be desorbed at a concentration ratio of 95 times (desorbed gas concentration/polluted gas concentration) or more.

The adsorbent desorption unit 200 includes a gas injection unit 220 and a gas discharge unit 230 to induce external discharge of the desorbed gas, that is, the volatile organic compound gas.

The volatile organic compound gas discharged from the adsorbent desorption unit 200 may be processed by recovery, power generation, reforming, etc. by combustion or condensation. The adsorbent that has passed through the multistage moving bed adsorption unit 140 adsorbs volatile organic compounds and can desorb volatile organic compounds at a high concentration in the adsorbent desorption unit 200, thereby improving and utilizing the treatment cost/efficiency of volatile organic compounds. You can expand the range.

In addition, the regenerated adsorbent may be discharged to the adsorbent discharge unit 250 and may be re-injected through the adsorbent injection unit 110 of the columnar housing 100 along the adsorbent moving pipe 300. A hopper 400 may be provided to control the injection rate of the regenerated adsorbent,

The adsorbent injection unit 210 and the adsorbent discharge unit 250 may control the speed using a rotary valve or the like.

As an example of the present invention, the adsorbent moving pipe 300 is connected to the adsorbent desorption unit 200 and the adsorbent injection unit 110 of the columnar housing 100 to move and supply the regenerated adsorbent. A device and/or space for cooling, storage, etc. may be further provided. For example, the adsorbent moving pipe 300 may include a storage unit 310, a gas processing unit 320, a cooling unit 330, and the like. The arrangement order of the storage unit 310, the gas processing unit 320, and the cooling unit 330 may be variously changed, and all or two or more functions may be performed in one space, or may be performed individually in each space. .

The storage unit 310 may store the regenerated adsorbent by maintaining it at a low or room temperature, and further remove contaminants and the like by cooling the regenerated adsorbent and processing gas such as air or inert gas.

The gas processing unit 320 may remove contaminants such as volatile organic compounds and dust by treating the regenerated adsorbent with a gas such as air or inert gas. In addition, it is maintained at low or room temperature to cool the regenerated adsorbent.

The cooling unit 330 cools the regenerated adsorbent, and may cool the regenerated adsorbent by maintaining it at a low or room temperature. In addition, contaminants such as volatile organic compounds and dust may be removed by treating the regenerated adsorbent with gas such as air or inert gas. Preferably, the gas processing unit 320 and the cooling unit 330 may be formed in one space.

As an example of the present invention, in the multistage moving bed adsorption and desorption apparatus according to the present invention, the adsorption process and the regeneration process are carried out in a continuous and repetitive process, and at least 90% in contaminated gas; Or 95% or more volatile organic compound removal efficiency and 40 times or more; More than 50 times; More than 85 times; More than 90 times; Alternatively, volatile organic compounds can be desorbed at a concentration ratio of 95 times (desorbed gas concentration/polluted gas concentration) or more.

The present invention relates to a method for treating volatile organic compounds using a multi-stage moving bed adsorption and desorption device according to the present invention. According to an embodiment of the present invention, the method for treating volatile organic compounds comprises: moving an adsorbent ; Adsorbing volatile organic compounds; And regenerating the adsorbent.

As an example of the present invention, in the step of moving the adsorbent, the adsorbent is injected into the multistage moving bed adsorption unit 140 in the columnar housing 100 through the injection unit 110, and the adsorbent is a multistage moving bed adsorption unit ( It is a step of moving in the direction of gravity according to the zigzag path of 140). The adsorbent may be one in which a moving speed is adjusted according to the breakthrough time of the adsorbent.

The adsorbent includes at least one selected from the group consisting of (granular) activated carbon, silica gel, zeolite, and alumina, and is 10 mm or less; 5 mm or less; 0.01 mm to 10 mm; Or it may have a size of 1 mm to 10 mm. Preferably, the adsorbent may have a spherical shape in order to smoothly move the adsorbent in a zigzag-shaped movement path.

As an example of the present invention, in the step of adsorbing volatile organic compounds, a mixed gas containing volatile organic compounds is injected into the columnar housing 100, and the adsorbent moves along the multistage moving bed adsorption unit 140. This is the step of adsorbing volatile organic compounds in the mixed gas.

The mixed gas containing the volatile organic compound is injected from the lower region of the columnar housing 100 and moves to the upper region, and contacts the adsorbent to adsorb the volatile organic compound. The mixed gas containing the volatile organic compound is 50 Nm ³ /min or more; 200 Nm ³ /min or more; 500 Nm ³ /min or more; Alternatively, it may be injected and moved at a mobile bed speed of 50 Nm ³ /min to 1000 Nm ³ /min.

The mixed gas containing the volatile organic compound is 1 ppm or more; 10 ppm or more; 100 ppm or more; It may contain a volatile organic compound having a concentration of 500 ppm or 800 ppm or more.

As an example of the present invention, the step of regenerating the adsorbent is a step of regenerating the adsorbent into which the volatile organic compound discharged after the step of adsorbing the volatile organic compound is adsorbed.

The step of regenerating the adsorbent is to regenerate the adsorbent in a direct or indirect heat exchange method, for example, by heating with a thermal jacket or desorption of volatile organic compounds adsorbed through microwaves to regenerate the adsorbent.

The step of regenerating the adsorbent may include 100° C. or higher; 150° C. or higher; The adsorbent may be regenerated by desorbing volatile organic compounds at 150°C to 250°C or 150°C to 200°C.

The step of regenerating the adsorbent may include 10 Nm ³ /min or less; 5 Nm ³ /min or less; 1 Nm ³ /min or less; Alternatively, the adsorbent can be regenerated at a desorption gas rate of 0.5 Nm ³ /min or less, and 90% or more; Alternatively, volatile organic compounds can be desorbed with a desorption efficiency of 95% or more.

As an example of the present invention, in the step of reinjecting the multistage moving bed suction unit, the adsorbent regenerated after the step of regenerating the adsorbent may be reinserted into the multistage moving bed suction unit to repeatedly perform the adsorption process.

As an example of the present invention, after the step of regenerating the adsorbent, it may further include cooling the regenerated adsorbent. The regenerated adsorbent may be stored at low or room temperature, or may be cooled while moving the tube 300 maintained at low or room temperature.

In addition, it may further include a gas treatment step of removing volatile organic compounds and dust remaining by treating the regenerated adsorbent with air or the like. This can be done before, during or after the cooling step.

As an example of the present invention, in the method for treating the volatile organic compound, each step may be continuously and repeatedly performed (ie, 2 or more times; 10 or more times; or 30 or more times).

The treatment method of the volatile organic compound, even through continuous and repetitive processes, 90% or more; Or 95% or more volatile organic compound removal efficiency (ie, the removal rate of volatile organic compound in the injected mixed gas) and 40 times or more; More than 50 times; More than 85 times; More than 90 times; Alternatively, volatile organic compounds can be desorbed at a concentration ratio of 95 times (desorbed gas concentration/polluted gas concentration) or more.

Example 1

As shown in Fig. 2, a 0.2 CMM scale experimental apparatus was made to perform a moving bed adsorption and desorption experiment. The mobile phase adsorption and desorption experiment was repeated 30 times with a VOC concentration of 800 ppm, an adsorbent movement speed of 9 g/min, a desorption temperature of 190 ^o C and a desorption flow rate of 2 L/min. After putting the adsorbent in the hopper and passing the mixed gas (VOC pollutant gas) through the adsorption layer (multi-stage moving bed adsorption tower) to adsorb and remove VOC, the contaminated adsorbent is sent to the desorptor and heated with a heating jacket to regenerate the adsorbent through desorption and then cool. The adsorbent moved to the upper hopper to circulate the adsorbent.

Even after 30 experiments, the VOC removal efficiency was more than 95%, and the concentration ratio was obtained up to 96 times. In addition, the adsorbent has a recovery rate of 97% (2842.3g -> 2750 g) after 30 experiments. The results are shown in FIG. 3.

Example 2

The mobile phase adsorption and desorption experiment was repeated 30 times with a VOC concentration of 500 ppm, an adsorbent movement speed of 5 g/min, a desorption temperature of 190 ^o C, and a desorption flow rate of 2 L/min.

Even after 30 experiments, the VOC removal efficiency was more than 96%, and the concentration ratio was obtained up to 95 times. In addition, the adsorbent has a recovery rate of 98% after 30 experiments.

As described above, although the embodiments have been described by the limited embodiments and drawings, various modifications and variations are possible from the above description by those of ordinary skill in the art. For example, even if the described techniques are performed in a different order from the described method, and/or the described components are combined or combined in a form different from the described method, or are replaced or substituted by other components or equivalents. Appropriate results can be achieved. Therefore, other implementations, other embodiments, and claims and equivalents fall within the scope of the claims to be described later.

Claims (16)

A columnar housing including an adsorbent injection unit and a gas discharge unit formed on an upper surface, and including an adsorbent discharge unit and a gas injection unit formed on a lower surface thereof;
A multi-stage moving bed adsorption unit connected in a vertical zigzag form from the adsorbent injection unit to the adsorbent discharge unit in the housing, occupying the entire inclined cross-section of the housing and having a zigzag path formed of a perforated plate; And
An adsorbent desorption unit for regenerating the adsorbent that has passed through the adsorbent discharge unit;
Including,
The gas injection unit injects a mixed gas containing a volatile organic compound,
The adsorbent desorption unit regenerates the adsorbent in a direct or indirect heat exchange method,
The adsorbent regenerated in the adsorbent desorption unit is re-injected into the multistage moving bed adsorption unit through the adsorbent injection unit
Multistage moving bed adsorption and desorption device.
The method of claim 1,
The adsorbent desorption unit is to regenerate the adsorbent by heating a thermal jacket or desorption through a heat exchange method through a microwave,
Multistage moving bed adsorption and desorption device.
The method of claim 1,
The adsorbent desorption unit is to be desorbed at 150 ℃ to 250 ℃,
Multi-stage moving bed adsorption and desorption device.
The method of claim 1,
The adsorbent desorption unit has an adsorbent recovery rate of 90% or more,
Multistage moving bed adsorption and desorption device.
The method of claim 1,
The adsorbent desorption unit has a desorption efficiency of 90% or more,
Multistage moving bed adsorption and desorption device.

The method of claim 1,
The adsorbent regeneration process of the adsorbent desorption unit and the adsorption process of the multistage moving bed adsorption unit are made of a continuous process,
Multi-stage moving bed adsorption and desorption device.
The method of claim 1,
It further includes an adsorbent storage unit for storing the regenerated adsorbent,
The adsorbent storage unit stores and cools the adsorbent regenerated in the adsorbent desorption unit,
Multistage moving bed adsorption and desorption device.
The method of claim 1,
The adsorbent comprises at least one selected from the group consisting of activated carbon, silica gel, zeolite, and alumina,
Multi-stage moving bed adsorption and desorption device.
The method of claim 1,
The gas is moving at a mobile bed speed of 50 Nm ³ /min or more,
Multi-stage moving bed adsorption and desorption device.
Injecting the adsorbent into the multistage moving bed adsorption unit and moving in the direction of gravity according to the zigzag path of the multistage moving bed adsorption unit in the columnar housing;
Injecting a mixed gas containing a volatile organic compound into the columnar housing and adsorbing the volatile organic compound by an adsorbent moving along the multi-stage moving bed adsorption unit;
Regenerating the adsorbent to which the volatile organic compound is adsorbed; And
Re-injecting the regenerated adsorbent into the multi-stage moving bed suction unit in the columnar housing;
Including,
The step is to proceed as a continuous process,
A method for treating volatile organic compounds using a multistage moving bed adsorption and desorption device.
The method of claim 10,
The adsorbing step is:
Inject gas at a mobile bed speed of 50 Nm ³ /min or more,
To control the moving speed of the adsorbent according to the breakthrough time of the adsorbent,
Method for treating volatile organic compounds.
The method of claim 10,
The adsorbing step is that the adsorbent is in contact with the gas moving from the bottom of the columnar housing to the top,
Method for treating volatile organic compounds.
The method of claim 10,
The regenerating step is to regenerate the adsorbent with a desorbed gas of 10 Nm ³ /min or less,
Method for treating volatile organic compounds.
The method of claim 10,
The step of regenerating the adsorbent is to regenerate the adsorbent by desorbing volatile organic compounds in a direct or indirect heat exchange method,
Method for treating volatile organic compounds.
The method of claim 10,
Regenerating the adsorbent is desorption at 150 ℃ to 250 ℃,
Method for treating volatile organic compounds.
The method of claim 10,
Cooling the adsorbent regenerated after the step of regenerating the adsorbent; further comprising,
Method for treating volatile organic compounds.

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