CN209745073U - Honeycomb active carbon adsorption-heat storage oxidation waste gas treatment device - Google Patents

Honeycomb active carbon adsorption-heat storage oxidation waste gas treatment device Download PDF

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CN209745073U
CN209745073U CN201920370946.5U CN201920370946U CN209745073U CN 209745073 U CN209745073 U CN 209745073U CN 201920370946 U CN201920370946 U CN 201920370946U CN 209745073 U CN209745073 U CN 209745073U
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activated carbon
carbon adsorption
heat
honeycomb activated
heat exchanger
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CN201920370946.5U
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朱本科
王怀国
柴方刚
刘培华
王连阁
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Qingdao Hailang Intelligent Equipment Co ltd
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QINGDAO DOUBLESTAR ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
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Abstract

The utility model provides a honeycomb activated carbon adsorption-heat accumulation oxidation exhaust treatment device belongs to industry organic waste gas treatment technical field, including honeycomb activated carbon adsorption case, heat accumulation formula thermal oxidation stove to and heat accumulation formula heat exchanger, heat accumulation formula heat exchanger's cold side export corresponds the desorption entry of honeycomb activated carbon adsorption case, and heat accumulation formula heat exchanger's hot side entry corresponds the first export of heat accumulation formula thermal oxidation stove, and heat accumulation formula heat exchanger's hot side export evacuation. The utility model discloses be applied to industrial organic waste gas and handle, solved the unable make full use of's of the heat that current industrial organic waste gas processing apparatus is surplus to the RTO technical problem, have and can greatly reduce the running energy consumption, characteristics that purification efficiency is high.

Description

honeycomb active carbon adsorption-heat storage oxidation waste gas treatment device
Technical Field
the utility model belongs to the technical field of industry organic waste gas handles, especially, relate to a honeycomb activated carbon adsorption-thermal storage oxidation exhaust treatment device.
background
Industrial organic waste gases mainly include Volatile Organic Compounds (VOCs), which are toxic, carcinogenic, and malodorous gases, and thus, it is of great importance to effectively treat the industrial organic waste gases. At present, the industrial organic waste gas treatment process appearing in the market mostly adopts a process of combining honeycomb activated carbon adsorption and catalytic combustion furnace (CO). However, the process has the problems of high energy consumption of honeycomb activated carbon desorption, incomplete catalytic combustion (generally, the catalytic efficiency is less than or equal to 90 percent) and the like.
The honeycomb activated carbon adsorption-Regenerative Thermal Oxidation (RTO) coupling treatment process solves the existing problems to a certain extent. CN201620204350 discloses an integrated device for handle active carbon adsorption concentration and heat accumulation formula thermal oxidizer of VOCs, VOCs at first pass through the active carbon adsorption tower absorption, adsorb the saturation back, the desorption of high-temperature gas, analytic high concentration organic waste gas gets into rearmounted RTO unit, catalytic combustion decomposes, utilize to pack and discharge behind the peculiar heat accumulation ability storage heat, partly carry out the blowback to remaining VOCs in the heat accumulation chamber from burning oxidation chamber exhaust hot gas, another part then is used for desorption unit gas heating, keep the stability of the interior temperature of furnace.
However, in the above patent, the honeycomb activated carbon has large energy consumption in the early stage of desorption, and is basically maintained and provided by fuel, so that the surplus heat of the RTO cannot be fully utilized, and meanwhile, the problems of large volume of the RTO three chambers, complicated control of the switching valve, high equipment investment and the like exist.
Disclosure of Invention
The utility model discloses it is big to honeycomb activated carbon desorption earlier stage energy consumption among foretell industry organic waste gas processing apparatus, lean on the fuel to maintain basically and provide, its technical problem to the unable make full use of the abundant heat of RTO provides a basically need not supplementary fuel when moving, only supply the heat that heaies up when equipment is shut down and is started next time, can greatly reduce the running energy consumption, honeycomb activated carbon adsorption-heat accumulation oxidation exhaust gas processing apparatus that purification efficiency is high.
In order to achieve the above object, the utility model discloses a technical scheme be:
The utility model provides a honeycomb activated carbon adsorption-heat accumulation oxidation exhaust treatment device, including honeycomb activated carbon adsorption case, heat accumulation formula thermal oxidation stove to and heat accumulation formula heat exchanger, heat accumulation formula heat exchanger's cold side export corresponds honeycomb activated carbon adsorption case's desorption entry, heat accumulation formula heat exchanger's hot side entry corresponds heat accumulation formula thermal oxidation stove's first export, heat accumulation formula heat exchanger's hot side export evacuation.
Preferably, heat accumulation flue gas valves are arranged on two sides of a hot side inlet and outlet of the heat accumulation type heat exchanger, and cold air valves are arranged on two sides of a cold side inlet and outlet of the heat accumulation type heat exchanger.
Preferably, the heat storage type heat exchanger further comprises a heat storage flue gas bypass pipeline which is connected with the heat storage type heat exchanger in parallel and two ends of which are respectively connected with an inlet and an outlet of the hot side of the heat storage type heat exchanger, and a cold air bypass pipeline which is connected with the heat storage type heat exchanger in parallel and two ends of which are respectively connected with an inlet and an outlet of the cold side of the heat storage type heat exchanger, wherein a heat storage flue gas bypass valve is arranged on the heat storage flue gas bypass pipeline, and a cold air bypass.
Preferably, the regenerative thermal oxidation furnace is a two-chamber regenerative thermal oxidation furnace.
Preferably, the desorption outlet of the honeycomb activated carbon adsorption box corresponds to the inlet of the heat accumulating type thermal oxidation furnace.
preferably, the honeycomb activated carbon adsorption device further comprises a mixing box for mixing gas, wherein a first mixing inlet of the mixing box corresponds to a second outlet of the regenerative thermal oxidation furnace, a second mixing inlet of the mixing box corresponds to a cold-side outlet of the regenerative heat exchanger, and a mixing outlet of the mixing box corresponds to a desorption inlet of the honeycomb activated carbon adsorption box.
Preferably, the number of the honeycomb activated carbon adsorption tanks is plural, and the plural honeycomb activated carbon adsorption tanks are not in an adsorption state or a desorption state at the same time.
preferably, temperature sensors are arranged in the honeycomb activated carbon adsorption box, the heat accumulating type thermal oxidation furnace and the heat accumulating type heat exchanger.
Preferably, the heat accumulating type heat exchanger is a ceramic heat accumulating type heat exchanger, and honeycomb ceramics are arranged in the ceramic heat accumulating type heat exchanger.
Preferably, a desorption fan is arranged between the honeycomb activated carbon adsorption box and the mixing box, an adsorption outlet of the honeycomb activated carbon adsorption box is emptied, and a main fan is arranged on an adsorption outlet side of the honeycomb activated carbon adsorption box.
Compared with the prior art, the utility model discloses an advantage and beneficial effect lie in:
1. The utility model provides a honeycomb activated carbon adsorption-thermal storage oxidation waste gas treatment device, which can fully utilize the surplus heat of RTO and reduce the energy consumption of equipment operation;
2. the utility model provides a honeycomb activated carbon adsorption-thermal storage oxidation exhaust treatment device has reduced the equipment volume, has reduced the equipment investment, has improved purification efficiency simultaneously.
Drawings
FIG. 1 is a schematic structural view of the honeycomb activated carbon adsorption-thermal storage oxidation waste gas treatment device of the present invention;
In the above figures: 1. a honeycomb activated carbon adsorption tank; 11. a desorption inlet; 12. a desorption outlet; 13. an adsorption outlet; 2. a regenerative thermal oxidation furnace; 21. an inlet; 22. a first outlet; 23. a second outlet; 3. a regenerative heat exchanger; 31. a cold side inlet; 32. a cold side outlet; 33. a hot side inlet; 34. a hot side outlet; 35. a heat accumulation flue gas valve; 36. a cold air valve; 4. a heat storage flue gas bypass pipeline; 41. a heat storage flue gas bypass valve; 5. a cold air bypass pipeline; 51. a cold air bypass valve; 6. a mixing box; 61. a first mixing inlet; 62. a second mixing inlet; 63. a mixing outlet; 7. a desorption fan; 8. a main blower.
Detailed Description
The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
in the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b): as shown in fig. 1, the utility model provides a honeycomb activated carbon adsorption-heat accumulation oxidation exhaust treatment device, including honeycomb activated carbon adsorption case 1, heat accumulation formula thermal oxidation stove 2 to and heat accumulation formula heat exchanger 3, heat accumulation formula heat exchanger 3's cold side export 32 corresponds desorption entry 11 of honeycomb activated carbon adsorption case 1, and heat accumulation formula heat exchanger 3's hot side entry 33 corresponds heat accumulation formula thermal oxidation stove 2's first export 22, and heat accumulation formula heat exchanger 3's hot side export 34 evacuation. It should be noted that, a part of the heat generated after the regenerative thermal oxidation furnace 2 oxidizes the organic waste gas is used for desorption of the honeycomb activated carbon, and a part of the heat is stored, however, because the regenerative thermal oxidation furnace 2 has limited heat storage capacity, the conventional waste gas treatment device often causes waste of heat. Generally, the desorption process of the honeycomb activated carbon is divided into three stages (the three stages can be distinguished by the running time in the honeycomb activated carbon adsorption box body): the temperature of the box body is raised at the early stage (0-1 h), the desorption is carried out at the middle stage (1-8 h) and the final stage (8-10 h). The time of the three stages is counted and timed by a time relay, and the time can be flexibly adjusted and set on the touch screen. In the process of heating the box body in the early stage, the concentration of the organic waste gas obtained by desorption and entering the heat accumulating type thermal oxidation furnace 2 is low due to low temperature, so that the heat obtained by oxidizing the organic waste gas in the heat accumulating type thermal oxidation furnace 2 is limited, a system is required to supplement heat for improving the desorption efficiency, and the fuel consumption is high at the moment; in the middle-period desorption process, due to the fact that the desorption concentration of the activated carbon is high, the desorption heat provided by the desorption gas provided by the heat accumulating type thermal oxidation furnace 2 is relatively sufficient, and the system does not need additional supplementary heat and can have surplus heat; in the final desorption stage, the concentration of the organic waste gas needing to be desorbed from the honeycomb activated carbon is lower, and the system can be maintained in a state of not supplementing heat. This honeycomb activated carbon adsorption-heat accumulation oxidation exhaust treatment device is through setting up heat accumulation formula heat exchanger 3, to the demand in the different stages of desorption process, collects the unnecessary heat in heat accumulation formula thermal oxidation stove 2 for the earlier stage box intensification stage of honeycomb activated carbon desorption process has realized heat make full use of, has improved heat utilization.
In order to control the heat accumulation and heat exchange processes of the heat accumulation type heat exchanger 3 conveniently, heat accumulation flue gas valves 35 are arranged on two sides of a hot side inlet and outlet of the heat accumulation type heat exchanger 3, and cold air valves 36 are arranged on two sides of a cold side inlet and outlet of the heat accumulation type heat exchanger 3.
Further, the heat storage type heat exchanger further comprises a heat storage flue gas bypass pipeline 4 which is connected with the heat storage type heat exchanger 3 in parallel and two ends of which are respectively connected with an inlet and an outlet of the hot side of the heat storage type heat exchanger 3, and a cold air bypass pipeline 5 which is connected with the heat storage type heat exchanger 3 in parallel and two ends of which are respectively connected with an inlet and an outlet of the cold side of the heat storage type heat exchanger 3, wherein a heat storage flue gas bypass valve 41 is arranged on the heat storage flue gas bypass pipeline 4, and. The heat accumulating type heat exchanger 3 can be prevented from overheating by arranging the heat accumulating flue gas bypass pipeline 4, and the cold air bypass pipeline 5 is arranged to be beneficial to selecting whether to heat cold air according to specific requirements.
In order to reduce the volume of the apparatus, the regenerative thermal oxidizer 2 is a two-chamber regenerative thermal oxidizer. Traditional two room heat accumulation formula thermal oxidation stove is owing to not sweeping the function, and purification efficiency generally is less than 95%, and this utility model provides a two room heat accumulation formula thermal oxidation stove, export flue gas most are used for desorption honeycomb active carbon, and a small part is arranged outside through the valve and is got into the main adsorption line, consequently has advantages such as simple structure, purification thoroughly, and purification efficiency can reach more than 99%.
In order to ensure the continuity of the waste gas treatment, the desorption outlet 12 of the honeycomb activated carbon adsorption box 1 corresponds to the inlet 21 of the regenerative thermal oxidation furnace 2.
In order to improve the heat utilization rate and improve the desorption efficiency, the device further comprises a mixing box 6 for mixing the gas, wherein the first mixing inlet 61 of the mixing box 6 corresponds to the second outlet 23 of the regenerative thermal oxidation furnace 2, the second mixing inlet 62 of the mixing box 6 corresponds to the cold-side outlet 32 of the regenerative heat exchanger 3, and the mixing outlet 63 of the mixing box 6 corresponds to the desorption inlet 11 of the honeycomb activated carbon adsorption box 1.
Further, the number of the honeycomb activated carbon adsorption tanks 1 is plural, and the plurality of honeycomb activated carbon adsorption tanks 1 are not in an adsorption state or a desorption state at the same time. This setting has guaranteed that whole exhaust-gas treatment process can go on high efficiency in succession. In order to guarantee the switching of the adsorption or desorption states of each honeycomb activated carbon adsorption box 1, the adsorption inlet of the honeycomb activated carbon adsorption box 1 is provided with an adsorption inlet valve, the adsorption outlet is provided with an adsorption outlet valve, the desorption inlet is provided with a desorption inlet valve, the desorption outlet is provided with a desorption outlet valve, the adsorption inlet valve, the adsorption outlet valve, the desorption inlet valve, the desorption outlet valve are electrically connected with the PLC, and the valves are controlled to be switched on and off by the PLC.
In order to facilitate the rapid detection of the temperature conditions in the honeycomb activated carbon adsorption tank 1, the heat accumulating type thermal oxidation furnace 2 and the heat accumulating type heat exchanger 3, temperature sensors are arranged in the honeycomb activated carbon adsorption tank 1, the heat accumulating type thermal oxidation furnace 2 and the heat accumulating type heat exchanger 3. The sensor is arranged to facilitate timely detection of the temperature in the honeycomb activated carbon adsorption box 1, the heat accumulating type thermal oxidation furnace 2 and the heat accumulating type heat exchanger 3, and meanwhile, according to the temperature condition, through controlling different valves, smoke or cold air is used as a medium to perform corresponding transfer on heat. Specifically, when the temperature in the heat accumulating type thermal oxidation furnace 2 reaches 880-950 ℃, the heat accumulating smoke valve 35 is opened, and the redundant heat in the heat accumulating type thermal oxidation furnace 2 is collected through the heat accumulating type heat exchanger 3; when the temperature in the heat accumulating type heat exchanger 3 reaches 300-600 ℃, closing the heat accumulating flue gas valve 35, opening the heat accumulating flue gas bypass valve 41, and emptying the flue gas; when the temperature of the honeycomb activated carbon adsorption box 1 in the desorption state is lower than 80-100 ℃, opening the cold air valve 36, and supplying heat to the honeycomb activated carbon adsorption box 1 in the desorption state through the heat accumulating type heat exchanger 3 to improve the desorption efficiency; and when the temperature of the honeycomb activated carbon adsorption box 1 in the desorption state is higher than 100 ℃, closing the cold air valve 36.
In order to ensure the heat storage capacity of the heat storage type heat exchanger 3, the heat storage type heat exchanger 3 is a ceramic heat storage type heat exchanger, and honeycomb ceramic is arranged inside the ceramic heat storage type heat exchanger.
In order to ensure the waste gas treatment efficiency, a desorption fan 7 is arranged between the honeycomb activated carbon adsorption box 1 and the mixing box 6, an adsorption outlet 13 of the honeycomb activated carbon adsorption box 1 is emptied, and a main fan 8 is arranged on the side of the adsorption outlet 13 of the honeycomb activated carbon adsorption box 1.
The working process of the honeycomb activated carbon adsorption-thermal storage oxidation waste gas treatment device in any embodiment comprises the following steps:
When the honeycomb activated carbon adsorption-heat storage oxidation waste gas treatment device is operated for the first time, the heat storage type heat exchanger 3 is not put into use, and the honeycomb activated carbon adsorption box 1 in a desorption state provides desorption heat by depending on fuel at the early stage of adsorption;
When the honeycomb activated carbon adsorption box 1 in the desorption state is desorbed for 1 hour and then enters the desorption middle stage, the temperature in the heat accumulating type thermal oxidation furnace 2 reaches 880-950 ℃ along with the increase of the desorption concentration, the heat accumulating flue gas valve 35 is opened, and the redundant heat in the heat accumulating type thermal oxidation furnace 2 is collected through the heat accumulating type heat exchanger 3;
When the temperature in the heat accumulating type heat exchanger 3 reaches 300-600 ℃, closing the heat accumulating flue gas valve 35, opening the heat accumulating flue gas bypass valve 41, and emptying the flue gas;
The honeycomb activated carbon adsorption box 1 in the desorption state finishes desorption, while switching to the adsorption state again, another honeycomb activated carbon adsorption box 1 is switched to the desorption state, at the moment, the cold air valve 36 is opened, and heat is supplied to the honeycomb activated carbon adsorption box 1 in the desorption state through the heat accumulating type heat exchanger 3;
When the temperature of the honeycomb activated carbon adsorption box 1 in the desorption state is higher than 100 ℃, closing the cold air valve 36;
Meanwhile, the honeycomb activated carbon adsorption box 1 in the desorption state enters the desorption middle period after being desorbed for 1 hour, the desorption concentration is increased, when the temperature in the heat accumulating type thermal oxidation furnace 2 reaches 880 plus 950 ℃, the heat accumulating flue gas valve 35 is opened, and the redundant heat in the heat accumulating type thermal oxidation furnace 2 is collected through the heat accumulating type heat exchanger 3 and is used for the earlier-stage desorption heating process of the next honeycomb activated carbon adsorption box 1.

Claims (10)

1. Honeycomb activated carbon adsorption-heat accumulation oxidation exhaust treatment device, its characterized in that: including honeycomb activated carbon adsorption case (1), heat accumulation formula thermal oxidation stove (2) to and heat accumulation formula heat exchanger (3), cold side export (32) of heat accumulation formula heat exchanger (3) correspond desorption entry (11) of honeycomb activated carbon adsorption case (1), the hot side entry (33) of heat accumulation formula heat exchanger (3) correspond first export (22) of heat accumulation formula thermal oxidation stove (2), the hot side export (34) evacuation of heat accumulation formula heat exchanger (3).
2. The honeycomb activated carbon adsorption-thermal storage oxidation exhaust gas treatment device according to claim 1, characterized in that: and heat accumulation flue gas valves (35) are arranged on two sides of a hot side inlet and outlet of the heat accumulation type heat exchanger (3), and cold air valves (36) are arranged on two sides of a cold side inlet and outlet of the heat accumulation type heat exchanger (3).
3. The honeycomb activated carbon adsorption-thermal storage oxidation exhaust gas treatment device according to any one of claims 1 or 2, characterized in that: still include with heat accumulation formula heat exchanger (3) parallelly connected, and both ends respectively with heat accumulation flue gas bypass pipeline (4) that the hot side access & exit of heat accumulation formula heat exchanger (3) is connected, and with heat accumulation formula heat exchanger (3) are parallelly connected, and both ends respectively with cold side access & exit of heat accumulation formula heat exchanger (3) are connected cold wind bypass pipeline (5), be equipped with heat accumulation flue gas bypass valve (41) on heat accumulation flue gas bypass pipeline (4), be equipped with cold wind bypass valve (51) on cold wind bypass pipeline (5).
4. The honeycomb activated carbon adsorption-thermal storage oxidation exhaust gas treatment device according to claim 1, characterized in that: the heat accumulating type thermal oxidation furnace (2) is a two-chamber heat accumulating type thermal oxidation furnace.
5. the honeycomb activated carbon adsorption-thermal storage oxidation exhaust gas treatment device according to claim 1, characterized in that: and a desorption outlet (12) of the honeycomb activated carbon adsorption box (1) corresponds to an inlet (21) of the heat accumulating type thermal oxidation furnace (2).
6. The honeycomb activated carbon adsorption-thermal storage oxidation exhaust gas treatment device according to claim 1, characterized in that: the honeycomb activated carbon adsorption device is characterized by further comprising a mixing box (6) for mixing gas, wherein a first mixing inlet (61) of the mixing box (6) corresponds to a second outlet (23) of the heat accumulating type thermal oxidation furnace (2), a second mixing inlet (62) of the mixing box (6) corresponds to a cold side outlet (32) of the heat accumulating type heat exchanger (3), and a mixing outlet (63) of the mixing box (6) corresponds to a desorption inlet (11) of the honeycomb activated carbon adsorption box (1).
7. The honeycomb activated carbon adsorption-thermal storage oxidation exhaust gas treatment device according to claim 1, characterized in that: the honeycomb activated carbon adsorption box is characterized in that the number of the honeycomb activated carbon adsorption boxes (1) is multiple, and the honeycomb activated carbon adsorption boxes (1) are not in an adsorption state or a desorption state at the same time.
8. the honeycomb activated carbon adsorption-thermal storage oxidation exhaust gas treatment device according to claim 1, characterized in that: temperature sensors are arranged in the honeycomb activated carbon adsorption box (1), the heat accumulating type thermal oxidation furnace (2) and the heat accumulating type heat exchanger (3).
9. The honeycomb activated carbon adsorption-thermal storage oxidation exhaust gas treatment device according to claim 1, characterized in that: the heat accumulating type heat exchanger (3) is a ceramic heat accumulating type heat exchanger, and honeycomb ceramic is arranged inside the ceramic heat accumulating type heat exchanger.
10. The honeycomb activated carbon adsorption-thermal storage oxidation exhaust gas treatment device according to claim 6, characterized in that: honeycomb activated carbon adsorption case (1) with be equipped with desorption fan (7) between mixing box (6), the absorption export (13) evacuation of honeycomb activated carbon adsorption case (1), just absorption export (13) side of honeycomb activated carbon adsorption case (1) is equipped with main fan (8).
CN201920370946.5U 2019-03-21 2019-03-21 Honeycomb active carbon adsorption-heat storage oxidation waste gas treatment device Active CN209745073U (en)

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CN201920370946.5U CN209745073U (en) 2019-03-21 2019-03-21 Honeycomb active carbon adsorption-heat storage oxidation waste gas treatment device

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Application Number Priority Date Filing Date Title
CN201920370946.5U CN209745073U (en) 2019-03-21 2019-03-21 Honeycomb active carbon adsorption-heat storage oxidation waste gas treatment device

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Effective date of registration: 20231123

Address after: 266400 88 Gang Xing Road, POI Town, Huangdao District, Qingdao, Shandong

Patentee after: Qingdao Hailang Intelligent Equipment Co.,Ltd.

Address before: 266400 88 Gang Xing Road, POI Town, Huangdao District, Qingdao, Shandong

Patentee before: QINGDAO DOUBLESTAR ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd.

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