Filling treatment method

Abstract

A method for treating the filler of a separation tank that can prevent the release of CO2 and nitrogen oxides into the atmosphere is provided. [Solution] A method for removing and disposing of fillers from a separation tank that is arranged in a compressed air circuit and filled with at least an amine-attached oil adsorbent, which employs means comprising a blocking step of removing a separation tank whose functionality has deteriorated at an installation facility from the compressed air circuit and blocking the inlet and outlet holes, a first transfer step of transporting the blocked separation tank from the installation facility to an exchange facility, a decomposition step of removing the fillers filled in the transported separation tank, a sealing step of sealing the fillers removed in the decomposition step in a sealed container, a second transfer step of transporting the fillers sealed in the sealing step from the exchange facility to an incineration facility, and an incineration step of incinerating the transported fillers at the incineration facility.

Description

[Technical field]

[0001] The present invention relates to a method for treating a filler packed in a separation tank, and more particularly to a method for removing the filler packed in a separation tank whose drain purification function has decreased and incinerating the filler. [Background technology]

[0002] In compressed air circuits, the drain generated when removing foreign matter from compressed air contains foreign matter such as oil, so the drain is purified by passing it through a separation tank that removes foreign matter and then discharged to the outside. When a used separation tank needs to be replaced due to a predetermined operating time or the deterioration of the filler filled in the separation tank, the manufacturer is asked to replace the separation tank.

[0003] The used separation tank is filled with a filler that has adsorbed foreign matter and CO2 contained in the drain, and with drain in which large amounts of gases such as CO2 are dissolved in proportion to the pressure according to Henry's law, and there was a problem that the CO2 was released into the atmosphere when the pressure on the filler in the separation tank decreased. There was also a problem that greenhouse gases such as nitrogen oxides were generated in the process of decomposing the amine provided as a filler by microorganisms such as nitrifying bacteria that were adsorbed to the filler as a foreign matter, and were released into the atmosphere. Therefore, there has been a demand for a means for transporting and disposing of the filler when replacing the separation tank without releasing greenhouse gases such as CO2 and nitrogen oxides generated from the filler into the atmosphere.

[0004] In order to solve the above problem, the applicant developed a method for replacing the stored items stored in a used oil-water separation device and proposed the technology described in Patent No. 4418872 (Patent Document 1). According to this technical proposal, in the oil-water separation device, a drain water leakage prevention means is provided in the tank body in which the stored items are stored, and by delivering only the tank body to a specified location, the filling can be replaced by someone with a certain level of skill, which is an excellent effect. However, according to the technical proposal described in Patent Document 1, although it is useful as a means of preventing leakage of drain water from the tank, it does not specify a method for sealing the filler filled in the tank body, and furthermore, there is no description of a method for disposing of the filler, so the above problem has not yet been solved.

[0005] Therefore, the applicant focused on the problem that gases such as CO2 and nitrogen oxides are separated and released from the filler when the filler in the separation tank is transported to an incineration facility, and came up with the idea of ​​whether it might be possible to transport the filler in a state that completely prevents the gases from being released into the outside air.He developed a method for treating the filler in a separation tank, in which the filler removed from a used separation tank is transported in a sealed state to an incineration facility, and the CO2 generated when the filler is incinerated is captured at the incineration facility, thereby making it possible to prevent the release of CO2 and nitrogen oxides into the atmosphere, and has thus proposed the ``filler treatment method'' of the present invention. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6247788 Summary of the Invention [Problem to be solved by the invention]

[0007] In view of the above problems, the present invention has an objective of providing a method for treating filler in a separation tank, which can prevent the release of CO2 and nitrogen oxides into the atmosphere by transporting the filler removed from a used separation tank in a sealed state to an incineration facility and capturing the CO2 generated when the filler is incinerated at the incineration facility. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention is a method for removing and disposing of fillers from a separation tank that is arranged in a compressed air circuit and filled with at least an amine-attached oil adsorbent, and employs means comprising a blocking step of removing a separation tank whose function has deteriorated at an installation facility from the compressed air circuit and blocking the inlet and outlet holes, a first transfer step of transporting the blocked separation tank from the installation facility to an exchange facility, a decomposition step of removing the fillers filled in the transported separation tank, a sealing step of sealing the fillers removed in the decomposition step in a sealed container, a second transfer step of transporting the fillers sealed in the sealing step from the exchange facility to an incineration facility, and an incineration step of incinerating the transported fillers at the incineration facility.

[0009] The present invention also employs a means for providing a CO2 capture process for separating and capturing CO2 from the exhaust gas generated in the incineration process.

[0010] Furthermore, the present invention employs a means in which the sealed container used to seal the filled material in the second transfer step is made of biomass plastic. Effect of the Invention

[0011] According to the filler treatment method of the present invention, the filler of a separation tank filled with at least an amine-containing oil adsorbent is treated in a sealed container after being removed from the decomposition step until the incineration step is performed, and therefore even if the amines are decomposed by the microorganisms adsorbed to the amine-containing oil adsorbent and greenhouse gases such as NO, a type of nitrogen oxide, are generated, the gases are not released into the atmosphere but are transported to the incineration facility, and the greenhouse gases can be decomposed by the high heat generated by the incineration of the filler. This provides an excellent effect.

[0012] Furthermore, according to the filler treatment method of the present invention, by providing a CO2 recovery process, the CO2 generated during the incineration process of the filler and the CO2 adsorbed to the filler can be recovered within the incineration facility, thereby preventing its release into the atmosphere. It is also possible to store the recovered CO2 in a tank or the like and utilize it effectively. It is also possible to inject the CO2 into a depleted oil field to recover the remaining crude oil from the oil field, to use it as industrial carbon dioxide gas, or to use it for plant growth, etc., which are excellent effects.

[0013] Furthermore, according to the filling treatment method of the present invention, the sealed container used to seal the filling is made of biomass plastic, so even if CO2 is generated during incineration, the overall amount of CO2 does not increase, which has the excellent effect of contributing to the reduction of greenhouse gases. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a flow diagram showing a method for treating a packed material according to the present invention. [Diagram 2] FIG. 1 is an explanatory diagram showing an embodiment of a method for treating packed material according to the present invention. [Diagram 3] FIG. 1 is an explanatory diagram showing an embodiment of a method for treating packed material according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The filler treatment method 1 according to the present invention is characterized in that the filler 20 filled in the used separation tank 17 is transported to the incineration facility 32 while remaining sealed. Hereinafter, an embodiment of a packed material treating method 1 according to the present invention will be described with reference to the drawings.

[0016] The filling treatment method 1 according to the present invention is not limited to the embodiments described below, but can be modified as appropriate within the scope of the technical concept of the present invention, i.e., within the scope of shapes, dimensions, materials, etc. that can achieve the same functional effects.

[0017] Fig. 1 is a flow diagram showing a packing treatment method 1 according to the present invention. Fig. 2 is an explanatory diagram showing an embodiment of the packing treatment method 1 according to the present invention. Fig. 3 is an explanatory diagram showing an embodiment of the packing treatment method 1 according to the present invention, where (a) is an explanatory diagram of the decomposition step 4 and the sealing step 6, and (b) is an explanatory diagram of the incineration step 8 and the CO2 recovery step 9. The filler treatment method 1 according to the present invention is a treatment method carried out in association with deterioration of the separation tank 17 and filler 20 which purify the drain discharged from the compressed air circuit 10, and is mainly composed of a blocking process 2, a first transfer process 3, a decomposition process 4, a sealing process 6, a second transfer process 7, and an incineration process 8.

[0018] The compressed air pressure circuit 10 is installed in an installation facility 30 and supplies compressed air generated by a compressor 11 to utilization equipment connected downstream. Depending on the usage mode of the utilization equipment, various devices are provided, such as an air tank 12 for temporarily storing the compressed air, an air dryer 13 for lowering the temperature by drying the compressed air, and a cyclone separator 14 for separating and removing foreign matter such as oil mist and dust (hereinafter sometimes simply referred to as "foreign matter") contained in the compressed air. There is no particular limitation on the type and number of each device arranged in the compressed air pressure circuit 10, and these are determined appropriately depending on the purpose of using the compressed air and the equipment to be used. Furthermore, piping capable of sending compressed air is naturally provided between the compressor 11 and each device and the equipment to be used. During this process, the water vapor contained in the compressed air adheres to and binds to the inner walls and piping of each device, generating drainage that is moisture, and according to Henry's law, a large amount of CO2 in the compressed air will dissolve in the drainage that is in a high-pressure environment. After that, the drainage generated at each point in the compressed air pressure circuit 10 is appropriately discharged through the drainage pipe at the drain trap 15 installed in each device, but since foreign matter removed from each device is also discharged in a state contained in the drainage, a separation tank 17 is provided that can separate and remove the foreign matter and CO2 from the drainage.

[0019] The separation tank 17 is a tank that separates and adsorbs foreign matter and CO2 from the drain discharged from the compressed air pressure circuit 10 and flowing in through a discharge pipe, and then discharges the resultant as clean drain to the outside. The separation tank 17 is a cylindrical body having a hollow portion and closed top and bottom portions. The hollow portion is filled with filler 20 capable of separating and adsorbing foreign matter and CO2 contained in the drain, and is also formed with an inlet hole 18 for allowing the drain to flow from the bottom portion (lower portion) into the hollow portion, and a discharge hole 19 for discharging the drain from the hollow portion to the top portion (upper portion). There are no particular limitations on the external shape of separation tank 17 so long as it is tubular, and possible shapes include a cylindrical shape and a polygonal cylindrical shape. In addition, there are no particular limitations on the material constituting separation tank 17, but a preferred embodiment is one in which a part or all of the tank is made of a transparent or semi-transparent material such as reinforced plastic or glass, allowing visual confirmation of the deterioration state of the adsorbent filled in the hollow portion.

[0020] The filler 20 separates and adsorbs foreign matter and CO 2 contained in the drain that has flowed into the separation tank 17, and is filled in the hollow portion of the separation tank 17. The material of the filler 20 may be any of various conventionally known materials capable of separating and adsorbing foreign matter and CO2 contained in the drain, such as activated carbon 27, zeolite 28, and amine-containing oil adsorbent 29. In addition, it is also preferable to alternately stack and pack these materials to increase the adsorption efficiency. When using an embodiment in which the amine-containing oil adsorbent 29 is used as the adsorbent, the amine is converted to carbamic acid by a chemical reaction due to CO2 adsorption, and is immediately converted to ammonium carbamate salt in an acidic environment such as CO2 and oil. This ammonium carbamate salt may be desorbed from the amine-containing oil adsorbent 29 due to a change in pressure, etc. For this reason, a desirable embodiment is one in which activated carbon 27 capable of adsorbing CO2, carbamic acid, and ammonium carbamate salt is layered and filled in the hollow section together with the amine-containing oil adsorbent 29. Furthermore, as an action of the amine-added oil adsorbent 29, in an aerobic environment, amines and carbamates are decomposed into nitrite by nitrifying bacteria present in the drain using CO2, and further decomposed into nitrite into nitrates. In an anaerobic environment, nitrite and nitrate gases are reduced into nitrogen compounds such as nitric oxide (NO) and dinitrogen oxide (N2O) by denitrifying bacteria. Either reaction generates dinitrogen oxide. Dinitrogen oxide (also known as nitrous oxide) is one of the main greenhouse gases that cause global warming, and although its concentration in the atmosphere is low compared to other greenhouse gases such as CO2 and methane, its ability to cause global warming per unit concentration is 298 to 310 times higher. Therefore, it is preferable to layer and fill the hollow part with zeolite 28, which effectively adsorbs nitrogen compounds generated by the amine-added oil adsorbent 29, together with the amine-added oil adsorbent 29.

[0021] The activated carbon 27 separates and removes oil and odor contained in the drain, and adsorbs CO2 and carbamates under a high pressure environment. The raw materials of the activated carbon 27 are not particularly limited and may be vegetable matter, coal matter, petroleum matter, etc. Also, the activated carbon 27 is preferably in the form of fine granules in order to increase the surface area for the separation and removal action. Zeolite 28 is a mineral having a porous body that adsorbs metal ions and the like contained in the drain and selectively adsorbs CO2 under a high-pressure environment, similar to activated carbon 27. The shape of zeolite 28 is not particularly limited, and it is possible to make the shape of zeolite 28 into a round granular shape, a pellet shape, a crushed shape, or the like, for example, to increase the surface area that can contact the outside air and effectively adsorb CO2. The amine-added oil adsorbent 29 decomposes emulsified drain and oil, and also chemically adsorbs CO2. The amine-added oil adsorbent 29 uses aliphatic primary, secondary and tertiary amines, as well as polyamines, polyimines, cyclic amines, amidine compounds, hindered amines, amino-siloxane compounds, amino acids, etc., and is preferably applied to or permeated into a nonwoven fabric.

[0022] The separation tank 17 according to the present invention is one in which it has been determined that the main body of the separation tank 17 needs to be replaced based on criteria such as the installation period and degree of adsorption, and furthermore, the filler 20 filled in the hollow portion has already adsorbed the foreign matter and CO2 contained in the drain.

[0023] The blocking step 2 is a step of removing the separation tank 17 disposed in the compressed air pressure circuit 10 in the installation facility 30 and blocking the inlet 18 and the outlet 19. The blocking step 2 is a step of blocking the inlet hole 18 and the discharge hole 19, which are open, with a blocking means after removing the piping and the like connected to the separation tank 17 as the compressed air pressure circuit 10, of the separation tank 17 that needs to be replaced, and preventing the drainage accumulated in the hollow part of the separation tank 17 from leaking to the outside through the inlet hole 18 and the discharge hole 19. There is no particular limitation on the procedure for removing the separation tank 17, but it is possible to prevent the inflow and backflow of the drainage by blocking the flow path with the valves 16 and the like provided in front of the inlet hole 18 and behind the discharge hole 19 before removing the separation tank 17. There is also no particular limitation on the blocking means for the inlet hole 18 and the discharge hole 19, but for example, a mode in which the openings of the inlet hole 18 and the discharge hole 19 are securely blocked using a blocking part 24 such as a fitted cap or a screw is preferable.

[0024] The first transfer step 3 is a step of packaging the separation tank 17 removed from the compressed air pressure circuit 10 in the closing step 2 in the installation facility 30 and transferring it to the exchange facility 31. The first transport step 3 is a step of transporting the separation tank 17, which has been removed from the compressed air circuit 10 and has the openings of the inlet 18 and the outlet 19 blocked, from the installation facility 30 to the exchange facility 31 by a transport means after packaging for transport to the exchange facility 31. The method of packaging the separation tank 17 may be any method capable of reducing vibrations and shocks to the separation tank 17 during transport, and may be, for example, a method of wrapping the body of the separation tank 17 to be transported in a storage case made of cardboard. There is also no particular limitation on the means of transport from the installation facility 30 to the exchange facility 31, but an appropriate method will be adopted depending mainly on the distance from the installation facility 30 to the exchange facility 31.

[0025] The decomposition step 4 is a step of decomposing the separation tank 17 transferred from the installation facility 30 in the exchange facility 31 and removing the filler 20 filled in the hollow portion of the separation tank 17 . Disassembly process 4 is a process in which separation tank 17 transported from installation facility 30 is received at exchange facility 31, the packaging is removed, and then the blocking parts 24 installed in blocking process 2 and the components 23 constituting the main body of separation tank 17 are disassembled individually, while removing the filler 20 filled in the hollow part of separation tank 17. In the decomposition step 4, there is a possibility that the CO2 adsorbed in the filler 20 may be released and diffused into the atmosphere due to pressure fluctuations when the filler 20 is removed from the separation tank 17. Therefore, it is desirable to adopt an embodiment in which the adsorption of CO2 by the filler 20 can be maintained, such as an embodiment in which the decomposition work is performed under a pressurized environment. Since the separation tank 17 disassembled in the disassembly step 4 may be dirty or worn due to the installation environment of the installation facility 30 or contact with drainage discharged from the compressed air circuit 10, it is preferable to wash the components 23 and the blocking parts 24 and replace badly worn parts after disassembly of the separation tank 17. In addition, since the filler 20 removed from the separation tank 17 contains drainage, which is moisture, it is preferable to temporarily store it in a vinyl bag or a water-repellent / water-resistant storage container before carrying out the sealing step 6.

[0026] In a preferred embodiment, separation tank 17 disassembled into components 23 and blocking parts 24 in disassembly step 4 is reassembled after cleaning and part replacement, and the hollow part of separation tank 17 is filled with unused filler 20 in regeneration step 5. This embodiment has the excellent effect that when the separation tank 17 body and filler 20 are replaced due to deterioration, separation tank 17 can be reused again simply by replacing and cleaning the worn parts and filler 20.

[0027] The sealing step 6 is a step of sealing the filler 20 removed from the separation tank 17 in the decomposition step 4 in a sealed container 25 in the exchange facility 31. The sealing step 6 is a step of sealing the surrounding environment of the filler 20 by storing the filler 20 removed from the separation tank 17 by the decomposition step 4, or the removed filler 20 stored in a vinyl bag or a water-repellent / water-resistant storage container, in a sealed container 25 prepared in advance. By sealing the filler 20 in the sealing step 6, leakage of gases such as nitrogen oxides and CO2 released from the filler 20, drain, and foreign matter is prevented. If activated carbon 27 is selected as the filler 20, CO2 previously adsorbed in the activated carbon 27 may be released to the outside air in a reduced pressure environment, and even if an amine-containing oil adsorbent 29 is selected, nitrifying bacteria may adhere to the amine-containing oil adsorbent 29 when it comes into contact with foreign matter in the drain or the air, causing the amine to decompose and generate N2O. Therefore, it is preferable to shorten the time that the filler 20 is exposed to the outside air in the decomposition step 4 and the sealing step 6. The sealed container 25 used in the sealing step 6 is not particularly specified in terms of shape, structure, material, etc., as long as it can maintain a sealed state so that greenhouse gases such as CO2 adsorbed in the filler 20 and N2O generated by decomposition of the amine-added oil adsorbent 29 used as the filler 20 do not leak into the outside air. For example, a mode in which a vinyl bag is used twice as shown in FIG. 3 and each bag is sealed, or a mode in which the filler 20 is stored in a plastic box and the opening is closed to seal the filler 20, etc., can be considered. Also, as shown in FIG. 3, even if multiple adsorbent materials are used as the filler 20 to be sealed, it is preferable to store them together in one sealed container 25 and seal them. By adopting such a mode, it is possible to contribute to the efficiency of the sealing step 6 and reduce the number of sealed containers 25 to be transported to the incineration facility 32.

[0028] The material of the sealed container 25 is preferably a material that does not generate dioxins during incineration in the incineration process 8 described below. For example, polyethylene or biomass plastic is conceivable, and among them, a container molded from biomass plastic is preferable. Biomass plastic is a polymeric material chemically or biologically synthesized from renewable biomass resources. Even if it is incinerated and CO2 is emitted, the total amount of carbon dioxide absorbed during growth and the amount of carbon dioxide emitted during incineration are zero, so it is an environmentally friendly plastic that can exhibit high carbon neutrality. By molding the sealed container 25 from biomass plastic, even if CO2 is generated by incineration in the incineration process 8 described below, the amount of CO2 will not increase overall, and as a result, it will contribute to reducing greenhouse gas emissions.

[0029] The second transfer step 7 is a step of transferring the filler 20 sealed in the sealing step 6 in the exchange facility 31 to the incineration facility 32. Specifically, it is a step of transferring the filler 20 stored in the sealed container 25 in a sealed state from the exchange facility 31 to the incineration facility 32 by a predetermined transfer means while keeping the filler in a sealed state. In the second transfer step 7, when transferring the sealed container 25, a mode in which the sealed container 25 is packaged may be adopted as necessary. In that case, the packaging method may be any method capable of reducing vibrations and shocks to the sealed container 25 during transfer, as in the first transfer step 3. In addition, the means of transfer from the exchange facility 31 to the incineration facility 32 is not particularly limited, and an appropriate method will be adopted depending mainly on the distance from the exchange facility 31 to the incineration facility 32.

[0030] The incineration process 8 is a process in which the filler 20 transferred from the exchange facility 31 is incinerated in the incineration facility 32, thereby incinerating the filler 20 and foreign matter adsorbed to the filler 20. The incineration process 8 is a process in which the sealed container 25 transferred from the exchange facility 31 is received at the incineration facility 32, the packaging is removed if it is packaged, and the sealed container 25 is thrown into the incinerator in the incineration facility 32 to incinerate the adsorbents such as activated carbon 27, zeolite 28, and amine-added oil adsorbent 29, which are the filler 20 stored in the sealed container 25, as well as the foreign matter adsorbed to each of the adsorbents. The incineration method in the incineration facility 32 is not particularly limited, and any conventionally known technology may be used. However, when an amine-containing oil adsorbent 29 is used as the filler 20, there is a possibility that N2O is generated by the decomposition of amines by nitrifying bacteria. Therefore, it is desirable to heat and burn the N2O up to a temperature at which it can be thermally decomposed (approximately 600 degrees).

[0031] When the waste is incinerated in the incineration process 8, the CO2 adsorbed by the filler 20 is released, and the gas discharged from the incinerator contains more CO2 than in a normal combustion process. Therefore, a preferred embodiment is one in which a CO2 capture facility 33 is provided downstream of the incineration facility 32, and a CO2 capture process 9 is provided in which CO2 is selectively captured from the exhaust gas discharged from the incineration facility 32 and stored. There is no particular limit to the method of capturing and storing CO2 from exhaust gas in the CO2 capture process 9, and any conventionally known technology may be used, such as a chemical absorption method using an amine aqueous solution. There is also no particular limit to the method of using the stored CO2, and it may be used as food or industrial gas, or injected into a dry oil layer to pump up crude oil. The flue gas from which CO2 has been captured in the CO2 capture process 9 is discharged to the outside as clean flue gas.

[0032] The main processing flow of the packed material processing method 1 having the above-mentioned configuration will be described with reference to FIG. First, in the blocking step 2, a separation tank 17 that has reached the time to be replaced is removed from the compressed air pressure circuit 10 disposed in an installation facility 30 by drain discharged from the compressed air pressure circuit 10, and blocking parts 24 are attached to the inlet hole 18 and the outlet hole 19, which are the openings. Then, in the first transport step 3, the separation tank 17 is packaged and transported to the replacement facility 31.

[0033] Next, in the disassembly process 4, the packaging of the separation tank 17 transported to the exchange facility 31 is removed, and the separation tank 17 is disassembled into the components 23, the blocking parts 24, and the filler 20 that was filled in the hollow part of the separation tank 17. The removed filler 20 is then stored in a sealed container 25 in the sealing process 6, preventing the CO2 adsorbed in the filler 20 from being released to the outside. Thereafter, the filler 20 that has been sealed in the sealing process 6 is transported to the incineration facility 32 in the second transport process 7. The disassembled components 23 and blocking parts 24 are cleaned, have their parts replaced, and are filled with the filler 20 in the regeneration process 5, and are transported to the installation facility 30 as reused products.

[0034] During the transfer of the filler 20 in the second transfer step 7, the filler 20 contains moisture as drain, and the moisture evaporates inside the sealed container 25, causing the internal pressure of the sealed container 25 to increase to a certain extent. Therefore, even if CO2 is released from the carbamate adsorbed in the activated carbon 27 during the transfer, the CO2 will be adsorbed by water or zeolite 28 in a pressurized environment. In other words, the water and zeolite 28 present in the sealed container 25 can act as a buffer for CO2.

[0035] The sealed container 25 transferred to the incineration facility 32 in the second transfer process 7 is unpackaged as necessary, and incinerated in an incinerator installed in the incineration facility 32 in the incineration process 8. At that time, the sealed container 25 is incinerated together with the filler 20 stored therein. This allows the filler 20 to be incinerated without being exposed to the outside air. The exhaust gas generated in the incineration process has CO2 removed by a CO2 capture facility 33 installed downstream of the incineration facility 32, and is discharged to the outside as clean exhaust gas.

[0036] Although the packed material treating method 1 according to the present invention has been described above, the present invention is not limited to the structures and aspects shown in the above embodiment. For example, in the incineration process 8, instead of incinerating the sealed container 25 containing the filler 20, it is also possible to remove the filler 20 from the sealed container 25 and incinerate only the filler 20, which can contribute to reusing the sealed container 25 and reducing CO2 emissions.

[0037] As described above, according to the filler treatment method 1 of the present invention, the filler 20 filled in the separation tank 17 is transported to the incineration facility 32 in a sealed state, thereby preventing nitrogen oxides, including CO2 desorbed from the activated carbon 27 and N2O generated in the amine-attached oil adsorbent 29, from being released into the outside air. In addition, after the nitrogen oxides are thermally decomposed in the incineration process 8, the CO2 is captured in the CO2 capture process 9, which contributes to the purification of the exhaust gas discharged from the incineration facility 32 and also contributes to the effective use of the captured CO2.

[0038] In addition, according to the filler treatment method 1 of the present invention, the separation of CO2 generated during transportation is guaranteed to a certain extent by the zeolite 28 and decomposition by nitrifying bacteria, and N2O generated during decomposition by the nitrifying bacteria during transportation is adsorbed by the zeolite 28 and is ultimately efficiently decomposed by the high-temperature incinerator. Furthermore, the oil adsorbent and adsorbed oil that are incinerated contribute to high-temperature combustion in the incinerator, and the generation of dioxins is also suppressed by incineration at high temperatures, providing such excellent effects. [Industrial Applicability]

[0039] The present invention is a method for treating fillers in a treatment tank that deteriorates with the purification of a fluid, and can be adopted for treatment tanks installed in any fluid flow path as a method for treating fillers that contributes to preventing the diffusion of pollutants, and also plays a part as a measure to reduce greenhouse gases in the atmosphere, which are said to be the cause of global warming. Therefore, it is believed that the "filler treatment method" according to the present invention has great industrial applicability. [Explanation of symbols]

[0040] 1 Filling processing method 2 Closure process 3 First transfer process 4 Decomposition process 5 Regeneration process 6 Sealing process 7 Second transfer process 8 Incineration process 9. CO2 capture process 10 Compressed air circuit 11 Compressor 12 Air Tank 13 Air dryer 14 Cyclone Separator 15 Drain trap 16 Valve 17 Separation tank 18 Inflow hole 19 Discharge hole 20 fillings 23 Components 24 Closure parts 25 Airtight containers 27 Activated carbon 28 Zeolite 29 Amine-containing oil absorbent 30 Installation Facilities 31 Exchange Facility 32 Incineration facilities 33 CO2 capture facility

Claims

1. A method for removing and treating a filler from a separation tank arranged in a compressed air circuit and filled with at least an amine-containing oil adsorbent, comprising the steps of: a blocking step of removing the separation tank whose function has deteriorated from the compressed air circuit at the installation facility and blocking the inlet and outlet; a first transfer step of transferring the blocked separation tank from the installation facility to an exchange facility; a decomposition step of removing the material packed in the transferred separation tank; a sealing step of sealing the filling removed in the decomposition step in a sealed container; A second transport step of transporting the sealed packing from the exchange facility to an incineration facility; and an incineration step of incinerating the transported filler in an incineration facility.

2. 2. The method for treating filler according to claim 1, further comprising a CO2 recovery step of separating and recovering CO2 from the exhaust gas generated in the incineration step.

3. 3. The method for treating a separation tank filler according to claim 1, wherein a sealed container used for sealing the filler in the second transfer step is made of biomass plastic.

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