JPH1066824A - Gas treatment apparatus, gas treatment method and pipe member for adsorbent transfer pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly transfer an adsorbent by forming the outer pipe provided outside the inner pipe of the introducing end part of an adsorbent transfer pipe so that the air between the inner and outer pipes can flow in an adsorbent introducing direction at a time of the introduction of the adsorbent. SOLUTION: In the pipe member 11 of the introducing end part of an adsorbent transfer passage 7, the support pipe 11b provided inside an outer pipe 11a is formed so as to be shorter than the outer pipe 11a and the lower end part 7a of the adsorbent transfer pipe 7 is inserted in the support pipe 11b. The upper end part 21 of the outer pipe 11a is opened to form a duble structure between the outer pipe 11a, the support pipe 11b and the lower part of the adsorbent transfer passage 7 by a space part 17 opened at its upper and lower end parts. By this constitution, when air is sucked into the adsorbent transfer passage 7 from the space part 17 by a blower, an adsorbent is also sucked into the adsorbent transfer passage 7 along with the flow of air and, therefore, even if an apparatus is started from the closed state of an opening part wherein the introducing end part of the adsorbent transfer passage is filled with the adsorbent, the adsorbent transfer passage 7 is not clogged with the adsorbent at the introducing end part thereof and the adsorbent can be smoothly transferred to a desorbing tower by the flow of air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas processing apparatus and a gas processing method for removing harmful components from a gas such as an exhaust gas containing harmful components such as an organic solvent discharged from a factory or the like and discharging the gas as a purified gas. And a pipe member for an adsorbent transfer pipe used in such a gas processing apparatus.

[0002]

2. Description of the Related Art Conventionally, a fluidized bed has been used as a device for purifying gas containing harmful components such as a solvent discharged from a plant using an organic solvent, such as a coating plant, a printing plant, a chemical plant, and a magnetic tape manufacturing plant. A gas treatment device of the type was used.

[0003] That is, a raw gas containing a harmful component such as a solvent is introduced into the apparatus from a raw gas introduction path, and the raw gas is brought into countercurrent contact with a flowing adsorbent such as granular activated carbon in a multistage fluidized bed. A gas is purified by adsorbing a harmful component such as a solvent to the adsorbent, and an adsorption tower that discharges the gas from which the solvent has been removed, and the adsorbent that has adsorbed the solvent in the adsorption tower are transferred to the adsorbent to remove the adsorbent. This is a gas processing device comprising a desorption tower for regeneration, and the adsorbent regenerated in the desorption tower is again transferred to the adsorption tower through a transfer path and reused as an adsorbent.

In such a gas treatment apparatus, an adsorbent transfer pipe for supplying an adsorbent to an adsorption tower or transferring an adsorbent from an adsorption tower to a desorption tower is generally a pipe shown in FIG.
A tube 31 made of metal such as stainless steel as shown in FIG.

[0005] When the adsorbent 33 having absorbed harmful components such as a solvent is transferred from the adsorption tower to the desorption tower, the adsorbent 33 moved to the lowermost stage of the adsorption tower is stored in the storage unit 30, The adsorbent 33 is introduced into the tubular body 31 and transferred from the introduction end 32 of the tubular body 31 opened to the storage unit 30, and in this case, the inside of the desorption tower to which the adsorbent 33 is transferred is blown or the like. A negative pressure is applied and the air is sucked together with the air by the differential pressure.

[0006]

However, when the processing apparatus is normally stopped, the introduction end 32 of such a tube 31 is buried in the adsorbent 33 stored in the storage section 30 as shown in FIG. When the processing device is started in this state,
Even if an attempt is made to suction the adsorbent 33 by setting the transfer destination of the adsorbent 33 to a negative pressure, since the introduction end 32 is buried in the adsorbent, the tube 31
Ambient air cannot be sucked from the inlet end 32 of the airbag.

Therefore, the adsorbent is located near the introduction end 32 of the tubular body 31.
In some cases, air flow did not occur with the clogged 33, and the adsorbent 33 could not be sucked from the vicinity of the introduction end 32 in some cases.

For example, when the adsorbent regenerated in the desorption tower is returned to the adsorption section of the adsorption tower, the adsorbent is similarly clogged at the introduction end of the return adsorbent transfer pipe. Transfer has stopped.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems, and a gas processing apparatus, a gas processing method, and a pipe member for an adsorbent transfer pipe capable of smoothly transferring an adsorbent. The task is to provide.

[0010]

[Means for Solving the Problems]

(Constitution) The present invention has been made in order to solve such a problem.
The gas processing apparatus, its gas processing method and a pipe member for the adsorbent transfer pipe, are characterized by introducing a raw gas, bringing the raw gas into contact with the adsorbent 12, and removing the raw gas from the raw gas. An adsorption tower 1 having an adsorbing section 4 for adsorbing the above components to an adsorbent 12, a gas outlet 6 for discharging a gas contacted with the adsorbent 12 in the adsorbing section 4, and an adsorbent
In a gas treatment apparatus provided with a gas treatment apparatus main body 10 provided with an adsorbent transfer pipe for transferring the adsorbent 12 so as to supply 12 or discharge the adsorbent 12 from the adsorption tower 1, the adsorbent of the adsorbent transfer pipe is provided. An outer tube is provided outside the inner tube into which the adsorbent 12 is introduced at the introduction end where the adsorbent 12 is introduced, and the air between the inner tube and the outer tube causes the adsorbent 12 to be introduced when the adsorbent 12 is introduced. It is formed so that it can be circulated in the introduction direction.

Further, the feature of the solvent gas treatment method is as follows.
The raw gas was introduced into the adsorbing section 4 of the adsorption tower 1, and the adsorbent 12 transferred to the adsorbing section 4 was treated by being brought into contact with the raw gas. Adsorbent
In the gas treatment method of transferring the adsorbent 12 from the adsorbent 4, when the adsorbent 12 is transferred, the air between the inner pipe and the outer pipe is introduced from the introduction end of the adsorbent transfer pipe provided with the outer pipe outside the inner pipe. Together with introducing the adsorbent 12 into the inner tube and transferring it.

Further, as a pipe member for the adsorbent transfer pipe, the adsorbent section 4 for introducing the raw gas and bringing the raw gas into contact with the adsorbent 12 to adsorb the components in the raw gas to the adsorbent 12 is provided. A gas treatment apparatus having an adsorption tower 1 having a gas discharge port 6 for discharging gas contacted with an adsorbent 12 in the adsorption section 4
A pipe member main body 11 having an outer pipe 11a detachably attached to an outer surface of an introduction end for introducing the adsorbent 12 of the adsorbent transfer pipe provided for transferring the adsorbent 12 provided in the adsorbent 12 is provided. That is, the air between the outer pipe 11a and the adsorbent transfer pipe is formed to be able to flow toward the adsorbent 12 at the time of introduction.

(Operation) As described above, in the present invention, an outer tube is provided outside the inner tube into which the adsorbent is introduced at the introduction end of the adsorbent transfer tube into which the adsorbent 12 is introduced, and The air between the inner pipe and the outer pipe becomes adsorbent when the adsorbent 12 is introduced.
Since the adsorbent 12 is introduced into the adsorbent transfer tube because the adsorbent 12 is introduced into the adsorbent transfer tube, the adsorbent 12 may clog the introduction end of the adsorbent transfer tube. However, air moves in the space formed between the inner tube and the outer tube that are formed in a double manner, and the air flows from the end of the inner tube toward the introduction direction of the adsorbent 12. Therefore, the adsorbent 12 is also introduced into the inner tube together with the air.

Therefore, the adsorbent 12 is reliably transferred to the inner pipe side by the flow of air without clogging the tip of the inner pipe, and the transfer of the adsorbent 12 can be reliably maintained.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the configuration of a gas processing apparatus according to the present invention will be described with reference to the drawings. 1 shown in FIG. 1 is such that the raw gas transferred into the apparatus through the raw gas introduction path 5 is introduced from the raw gas introduction port 5a, and the raw gas is brought into countercurrent contact with the adsorbent 12 so as to be adsorbed. An adsorption tower having a multi-stage fluidized bed 4 as an adsorption section through which the agent 12 flows and moves.
The granular adsorbent 12 is fluidized.

The adsorbent 12 contains harmful components contained in the raw gas,
For example, it is made of a granular polymer having a high adsorptivity to an organic solvent or the like, and flows from the uppermost stage to the lowermost stage in the multi-stage fluidized bed 4. Reference numeral 4a denotes an adsorbent storage section in which the adsorbent 12 moved to the lowermost stage of the multi-stage fluidized bed 4 is stored.

Reference numeral 6 denotes a purified gas discharge passage provided above the adsorption tower 1. The raw gas is sucked and introduced into the adsorption tower 1 through the purified gas discharge passage 6 and purified. A blower 13 is provided to suck the gas and discharge it to the outside of the adsorption tower 1, and the adsorbent 12 can be transferred from the desorption tower 2 to the adsorption tower 1 by setting the inside of the adsorption tower 1 to a negative pressure by the blower 13. .

2 is a desorption tower in which the adsorbent 12 stored in the adsorbent storage section 4a is moved through the multi-stage fluidized bed 4 to the lowermost stage and introduced through an adsorbent transfer path 7 composed of a metal pipe or the like. It is.

The adsorbent transfer path 7 is connected at one end as an introduction end for introducing the adsorbent 12 to the adsorbent storage section 4a of the adsorption tower 1, and at the other end to the top of the desorption tower 2. ing.

Reference numeral 11 shown in FIGS. 2A and 2B denotes a pipe member attached to the introduction end of the adsorbent transfer path 7. The pipe member 11 has a support pipe 11b provided inside an outer pipe 11a. The support tube 11b is formed shorter than the outer tube 11a.
The lower end 7a of the adsorbent transfer path 7 is inserted into the support tube 11b, and is fastened by a bolt 19.

Since the upper end 21 of the outer tube 11a is open, a space 17 having upper and lower ends opened is formed between the outer tube 11a, the support tube 11b and the lower part of the adsorbent transfer path 7. . The pipe member 11 is fixed so that the lower end 7a of the attached adsorbent transfer path 7 is slightly higher than the lower end of the outer pipe 11a.

Reference numeral 14 denotes a desorption section provided in a multistage flow system so that the adsorbent 12 transferred to the uppermost portion of the desorption tower 2 is sequentially dropped and moved while flowing.

Reference numeral 15 denotes a desorption gas introduction path for introducing the desorption gas into the desorption tower 2. The desorption gas is sucked upward from below the desorption section 14 and flows downward from above the desorption tower 2. It is brought into countercurrent contact with the adsorbent 12 moving toward it.

8 is for introducing the desorbed adsorbent 12 stored in the adsorbent storage section 14a provided at the lowermost stage of the desorption section 14 and for introducing the adsorbent 12 in the multi-stage fluidized bed 4 in the adsorption tower 1. This is an adsorbent return path including a metal pipe similar to the adsorbent transfer path 7 returned to the upper part.

A tube member 11 similar to the end of the adsorbent transfer path 7 is detachably attached to the introduction end of the adsorbent return path 8. In this embodiment, the adsorbent transfer path 7 and the adsorbent return path 8 constitute an adsorbent transfer pipe.

Reference numeral 9 denotes a post-desorption gas discharge path for discharging a post-desorption gas containing a solvent at a high concentration after the solvent contained in the adsorbent 12 is desorbed in the desorption tower 2. 9
Is provided with a blower 18 for sucking and introducing a desorption gas into the desorption tower 2 and for sucking and discharging the gas after desorption. The adsorbent 12 is transferred from the adsorption tower 1 to the desorption tower 2 by setting the inside of the desorption tower 2 to a negative pressure by the blower 18.

Reference numeral 3 denotes a combustion device (catalytic oxidation device) provided in the post-desorption gas discharge passage 9 for heating the post-desorption gas containing the solvent component by catalytic combustion to oxidatively decompose the solvent component.
The combustion device 3 is connected to a post-combustion gas discharge passage 20 for discharging the burned post-combustion gas.

A heat exchange 16 is performed between the high-temperature post-combustion gas discharged from the combustion device 3 and air used as a desorption gas in the desorption gas introduction path 15 to generate hot air of the desorption gas. Therefore, the heat exchanger 16 is provided in the post-combustion gas discharge path 20.

Next, the gas processing apparatus main body 10 having the above-described structure is used as a raw gas with the solvent mixed gas discharged from the factory or the like.
The case where the gas treatment is performed by removing the solvent by the method will be described.

First, a raw gas mixed with a solvent discharged from a factory or the like is introduced into the adsorption tower 1 through the raw gas introduction path 5.

The raw gas introduced into the adsorption tower 1 is flowed upward, and is brought into countercurrent contact with the adsorbent 12 which is moved from the top to the bottom in the multi-stage fluidized bed 4.

The solvent contained in the raw gas is adsorbed by the adsorbent 12 while being brought into countercurrent contact with the adsorbent 12, and is sucked by the blower 13 from the purified gas discharge port 6 at the upper part of the adsorption tower 1. Then, the purified gas purified in the adsorption tower 1 is discharged.

Further, the adsorbent 12, which has flowed through the multi-stage fluidized bed 4 and adsorbed the solvent, is moved to the lowermost stage and then stored in the adsorbent storage section 4a.

In the adsorbent storage section 4a, when the gas processing device is not started, the adsorbent transfer path 7 is not used as shown in FIG.
Is in a state of being buried in the stored adsorbent 12, but when the gas treatment apparatus is started, the upper part of the desorption tower 2 is set to a negative pressure by the blower 18 provided at the upper part of the desorption tower 2 to store the adsorbent. The adsorbent 12 is sucked through the adsorbent transfer path 7 by the pressure difference from the part 4a as shown in FIG.

At this time, the pipe member 11 is attached to the introduction end of the adsorbent transfer path 7, and the adsorbent transfer path 7 is connected to the pipe member.
Therefore, a space 17 formed between the outer pipe 11a of the pipe member 11 and the lower part of the adsorbent transfer path 7 by the blower 18 in the adsorbent transfer path 7 Is sucked into the adsorbent transfer path 7 from the air.

The adsorbent 12 is also sucked into the adsorbent transfer path 7 along with the flow of air, and the introduction end of the adsorbent transfer path 7
Even when the gas treatment apparatus is started up from the state where the opening is closed by being buried in the adsorbent 12, the adsorbent 12 is smoothly desorbed by the flow of the air without being clogged at the introduction end of the adsorbent transfer path 7. Transferred to tower 2.

At this time, since the lower end 7a of the adsorbent transfer passage 7 located inside the outer tube 11a is located slightly above the lower end of the outer tube 11a, the air flowing downward through the space 17 is located. Easily flows from the lower end 7a of the adsorbent transfer path 7 into the adsorbent transfer path 7, and the flow of air becomes smoother.

From the adsorbent transfer path 7, the desorption section 14 of the desorption tower 2
The desorbing gas transferred to the desorbing section 14 is heated to a predetermined temperature required for desorption by the heat exchanger 16 introduced from the desorption gas introduction path 15 in the desorption section 14, and the desorption gas is transferred to the adsorbent 12
And countercurrent contact. The predetermined temperature required for the desorption is appropriately determined according to the type of the harmful component such as the solvent contained in the raw gas, the material of the adsorbent 12, and the like.

The adsorbent 12 is heated by the desorbing gas while sequentially falling through the desorbing section 14, the solvent in the adsorbent 12 is desorbed, and the desorbing gas contains a high concentration of the solvent, and the adsorbent 12 is discharged from the desorption tower 2. Is discharged.

The desorbed gas containing the solvent is heated to about 350 ° C. by the combustion device (catalytic oxidation device) 3,
The solvent is oxidatively decomposed and decomposed into harmless inorganic substances such as H ₂ O and CO ₂ . The combustion temperature of the combustion device 3 is set to a temperature suitable for oxidizing and decomposing the solvent in accordance with the components of the solvent in the raw gas.

Further, the high-temperature post-combustion gas discharged from the combustion device 3 is transferred in the post-combustion gas discharge path 20, and
As described above, the post-combustion gas discharge passage 20 is provided by the heat exchanger 16.
After the desorption gas in the desorption gas introduction path 15 is heated by the internal gas, the gas is transferred to the outside of the gas processing device.

As described above, the heat exchanger 16 is connected to the post-combustion gas exhaust passage.
When provided at 20, the desorbed gas can be heated to the temperature required for desorption by the heat exchanger 16, and even if the burned gas is discharged to the outside of the apparatus, it will affect the environment. It can be lowered to a temperature that is not so high.

On the other hand, the adsorbent 12 from which the solvent has been desorbed in the desorption tower 2 is stored in the adsorbent storage section 14a below the desorption tower 2, and the adsorbent return path 8 connected to the adsorbent storage section 14a. The adsorbent is transferred to the uppermost stage of the multi-stage fluidized bed 4 of the adsorption tower 1, and a pipe member 11 similar to the adsorbent transfer passage 7 is also attached to the introduction end of the adsorbent return passage 8.

Accordingly, the upper part of the adsorption tower 1 is set to a negative pressure by the blower 13 of the purified gas discharge port 6 provided in the upper part of the adsorption tower 1, and the pressure difference between the adsorbent storage part 14a of the desorption tower 2 and the adsorbent 12 is transported through the adsorbent return path 8,
At this time, air flowing through the space between the outer pipe 11a of the pipe member 11 and the lower end of the adsorbent return 8 to which the outer pipe 11a is attached, and further flowing through the lower end of the adsorbent return path 8 to the inside. The adsorbent 12 is smoothly returned to the adsorption tower 1 without clogging the lower end of the adsorbent return path 8 by the air flow, and flows again as the adsorbent 12 in the adsorption tower 1. .

In the above embodiment, the desorption section 14 of the desorption tower 2 is formed in a fluidized bed type, and the heated desorption gas is adsorbed.
Although the adsorbent 12 is regenerated by bringing the adsorbent 12 into countercurrent contact with the countercurrent contact 12, the desorption section 14 of the desorption tower 2 may be formed as a moving bed type, for example.

In the above embodiment, the adsorption tower 1 is provided with the multi-stage fluidized bed 4 as an adsorption section. However, the provision of such a multi-stage fluidized bed as the adsorption section of the adsorption tower 1 is not a condition. For example, a moving floor may be used.

Further, in the above-described embodiment, the desorbed gas is burned by the combustion device 3 to treat the harmful substances adsorbed by the adsorbent 12. For example, the desorbed gas is cooled and condensed by a condenser or the like. It may be provided to recover the solvent component.

Further, in the above-described embodiment, the pipe member 11 composed of the outer pipe 11a and the support pipe 11b is detachably mounted on the introduction end of the adsorbent transfer path 7 and the adsorbent return path 8. It is not a condition to attach a simple pipe member 11 to the adsorbent transfer path 7 and the adsorbent return path 8, and for example, an outer tube is provided at the introduction end of the adsorbent transfer path 7 and the adsorbent return path 8 to form a double structure. May be formed.

However, when the pipe member 11 as in the above embodiment is detachably attached to the introduction side of each adsorbent transfer pipe, the pipe member 11 may be attached to an end of an arbitrary pipe body as necessary. The introduction end of the heavy-structured adsorbent can be easily formed, and can be removed as needed, so that the height of the lower end of the outer tube can be adjusted according to the particle size and properties of the adsorbent 12. It is convenient for maintenance.

Further, in the above embodiment, a spherical polymer was used as the adsorbent 12, but the material of the adsorbent is not particularly limited, and any adsorbable granular adsorbent may be used. Or zeolite may be used.

In each of the above embodiments, means for heating the desorption gas in the desorption gas introduction path 15 includes:
The heat from the purified post-combustion gas is given to the gas in the desorption gas introduction path 15 by the heat exchanger 16 to heat it. It is not limited to the
May be provided with another heating means.

Further, in the above-described embodiment, the case of a solvent gas treatment apparatus for removing a solvent by introducing a gas containing a solvent as a raw gas has been described. However, the present invention is not limited to the case of removing a solvent. Any gas processing apparatus may be used as long as it removes a gas containing harmful components using an adsorbent.

Further, the desorption tower 2 does not necessarily need to be provided integrally with the gas treatment apparatus main body 10, but the point is that the adsorbent 12 having an adsorbing ability is supplied to the adsorption tower, or after the gas is brought into contact with the gas. An adsorbent transfer pipe for transferring the adsorbed adsorbent is provided, and the adsorbent introduction end of the adsorbent transfer pipe is formed as a double pipe having a space through which air can flow. I just need to.

[0054]

As described above, the present invention can prevent the adsorbent transferred in the gas treatment apparatus from being clogged at the end of the transfer pipe and stopping the transfer of the adsorbent. The transfer can be reliably maintained, and the gas processing operation can be performed efficiently and accurately.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a gas processing apparatus as an example of an embodiment of the present invention.

FIG. 2A is a partial sectional view of the pipe member of the present invention, FIG.
(A) is a top view of FIG.

3A is a cross-sectional view of a main part showing an adsorbent transfer pipe when the apparatus is stopped, and FIG. 3B is a cross-sectional view of a main part showing the adsorbent transfer pipe when the apparatus is operating.

FIG. 4 is a sectional view showing a main part of an adsorbent transfer pipe in a conventional gas processing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Adsorption tower 2 ... Desorption tower 4 ... Multistage fluidized bed (adsorption part) 7 ... Adsorbent transfer path (adsorbent transfer pipe) 8 ... Adsorbent transfer path (adsorbent transfer pipe) 11 ... Tube member 11a ... Outer pipe 11b … Support tube 12… Adsorbent

Claims (7)

[Claims] A raw gas is introduced, and the raw gas is adsorbed (12).
An adsorbent (4) for adsorbing the components in the raw gas to the adsorbent (12) by contact with the adsorbent (12) and a gas outlet (6) for discharging the gas contacted with the adsorbent (12) in the adsorbent (4) Adsorption tower with (1)
Gas treatment provided with an adsorbent transfer pipe for transferring the adsorbent (12) so as to supply the adsorbent (12) to the adsorption tower (1) or to discharge the adsorbent (12) from the adsorption tower (1). In the gas treatment device including the device body (10), the adsorbent (12) of the adsorbent transfer pipe
An outer pipe is provided outside the inner pipe into which the adsorbent (12) is introduced at the introduction end where the adsorbent (12) is introduced, and air between the inner pipe and the outer pipe is adsorbed when the adsorbent (12) is introduced. A gas treatment device formed so as to be able to flow in the direction of introduction of the agent (12). 2. A desorption tower (2) for regenerating an adsorbent (12) brought into contact with a raw gas is provided in the gas treatment apparatus main body (10), and the desorption tower (2) is provided with the adsorption tower. The adsorbent (1) contacted with the raw gas introduced from the introduction end attached to (1)
The gas treatment apparatus according to claim 1, wherein the adsorbent transfer pipe is connected to transfer the adsorbent to the desorption tower (2). 3. A desorption tower (2) for regenerating an adsorbent (12) brought into contact with a raw gas is provided in the gas treatment apparatus main body (10), and a desorption tower (1) is provided in the adsorption tower (1). 2) The desorbed adsorbent (12) introduced from the introduction end attached to
The gas processing apparatus according to claim 1, wherein the adsorbent transfer pipe is connected to return the adsorbent to (1). 4. The raw gas is introduced into the adsorption section (4) of the adsorption tower (1), and the adsorbent (12) transferred to the adsorption section (4) is brought into contact with the raw gas to be treated. In the gas treatment method of discharging the treatment gas and transferring the adsorbent (12) brought into contact with the raw gas from the adsorption section (4), an outer pipe is provided outside the inner pipe when the adsorbent (12) is transferred. A gas processing method comprising introducing and transferring an adsorbent (12) into an inner tube together with air between an inner tube and an outer tube from an introduction end of an adsorbent transfer tube provided. 5. An adsorbent (12) that has come into contact with a raw gas in an adsorbing section (4) of the adsorbing tower (1) by the adsorbent transfer pipe.
The gas processing method according to claim 4, wherein the adsorbent (12) transferred to (2) is regenerated. 6. A desorption tower is provided in the adsorption section (4) of the adsorption tower (1).
The gas treatment method according to claim 4 or 5, wherein the adsorbent (12) regenerated in (2) is returned by the adsorbent transfer pipe. 7. A raw gas is introduced, and the raw gas is adsorbed (12).
An adsorbent (4) for adsorbing the components in the raw gas to the adsorbent (12) by contact with the adsorbent (12) and a gas outlet (6) for discharging the gas contacted with the adsorbent (12) in the adsorbent (4) Adsorption tower with (1)
An outer tube (11a) detachably attached to an outer surface of an introduction end for introducing an adsorbent (12) of an adsorbent transfer tube for transferring an adsorbent (12) provided in a gas treatment device (10) having Tube body (11) having an outer tube at the time of introduction of the adsorbent (12).
A tube member for an adsorbent transfer tube, characterized in that air between (11a) and the adsorbent transfer tube is formed so as to be able to flow in the direction of introduction of the adsorbent (12).