A moving bed organic waste gas treatment system and operation method thereof

Abstract

The present invention belongs to the technical field of organic waste gas treatment, and specifically relates to a moving bed organic waste gas treatment system and its operation method. The present invention sets an inclined guide plate in the adsorption zone to increase the contact area when the organic waste gas and the adsorbent are in countercurrent contact reaction, and the flowing adsorbent can significantly reduce the operation resistance of the device; by recycling the adsorbent in the system, the continuity of the organic waste gas treatment process is guaranteed, and there is no need to set up multiple groups for switching like traditional fixed adsorption beds to achieve continuous treatment. Compared with the traditional method of setting up two or more groups of fixed adsorption beds to ensure continuous treatment of organic waste gas, this system effectively reduces the volume, saves space, and reduces the construction and operation costs of limited space enterprises; the structure of this system is relatively simpler, which reduces the problems of decreased system stability and high requirements for the control system caused by frequent switching of adsorption beds, and is easy to maintain and manage.

Description

Technical Field

[0001] The invention belongs to the technical field of organic waste gas treatment, and specifically relates to a moving bed organic waste gas treatment system and an operation method thereof. Background Art

[0002] In the current field of industrial production and environmental protection, the treatment of organic waste gas has always been an important topic of concern. The common method of treating organic waste gas is to remove organic waste gas by adsorption reaction through a fixed adsorption bed device. In this treatment method, granular activated carbon is usually used as the adsorbent. In order to ensure that sufficient adsorption reaction time can be achieved, a certain height of activated carbon layer needs to be loaded. However, such a design brings a series of problems.

[0003] First, the activated carbon layer with a certain height makes the organic waste gas have greater resistance when passing through. This not only increases the operating energy consumption of the waste gas treatment system, but also may cause a certain pressure impact on the front-end waste gas emission equipment, and may even affect the stable operation of the entire production system.

[0004] Secondly, in actual engineering applications, in order to ensure the continuous treatment of organic waste gas, it is often necessary to set up two or more groups of fixed adsorption beds. When one group of fixed beds is saturated with adsorption, the group enters the desorption stage. At this time, the organic waste gas needs to enter other groups of fixed beds to achieve continuous treatment of organic waste gas. Although this method ensures the continuity of treatment to a certain extent, it also makes the entire device larger and occupies more space. This undoubtedly increases the construction and operation costs for some companies with limited space.

[0005] In addition, the setting of multiple groups of fixed adsorption beds also increases the complexity and maintenance difficulty of the system. Different adsorption beds need to be switched and coordinated, which places high demands on the control system. At the same time, frequent switching of adsorption beds may also lead to a decrease in system stability and affect the treatment effect.

[0006] In summary, the existing organic waste gas treatment devices have problems such as large operating resistance, inability to achieve continuous operation, and large size. These problems not only affect the efficiency and effect of organic waste gas treatment, but also increase the cost and burden of enterprises. Therefore, a moving bed organic waste gas treatment system is urgently needed to effectively solve the above problems and meet the needs of enterprises for efficient, continuous and compact organic waste gas treatment devices.

[0007] In view of this, the present invention is proposed. Summary of the invention

[0008] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a moving bed organic waste gas treatment system and an operation method thereof.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] On the one hand, the present invention provides a moving bed organic waste gas treatment system, comprising a reaction tower body, wherein a desorption zone, an adsorption zone, an adsorbent distribution zone and a clean gas outlet are sequentially arranged in the reaction tower body from bottom to top, and the desorption zone is connected to the adsorbent distribution zone through an adsorbent delivery system;

[0011] The desorption zone includes an adsorbent gathering structure with an inverted trapezoidal structure, the top of the adsorbent gathering structure is fixedly connected to the reaction tower body, and the bottom is circumferentially fixed with an open structure that opens downward and can adjust the distance between the structure and the reaction tower body, and an adsorbent collecting structure with an inverted trapezoidal structure is arranged directly below the open structure, and a low-pressure steam inlet is arranged on the side wall of the adsorbent collecting structure, the top of the adsorbent collecting structure is fixedly connected to the reaction tower body, and the bottom is communicated with the adsorbent delivery system, and an organic waste gas inlet is arranged on the side wall of the adsorbent gathering structure;

[0012] A mixed gas outlet is provided in an area corresponding to the side wall of the reaction tower body between the adsorbent gathering structure and the open structure, and the mixed gas outlet is also connected to a mixed gas condensation and separation system for actively extracting the mixed gas.

[0013] Furthermore, the open structure first separates the adsorption zone and the desorption zone from the structure. Second, in the desorption zone, due to the disturbance of the flow field by the low-pressure steam, some particles move upward, which is not conducive to desorption. The blocking effect of the open structure can reduce this adverse effect. When the particles move from top to bottom in the flow field, the flow cross section increases and the flow rate decreases after passing through the open structure, which is conducive to uniform contact between the particles and the steam and improves the desorption effect. Third, the annular area formed by the adsorbent gathering structure, the open structure, and the side wall of the reaction tower is a uniform buffer zone, which is conducive to reducing the influence of the mixed gas on the flow field in the desorption zone when it is sucked, thereby keeping the flow field in the desorption zone relatively stable.

[0014] Specifically, an exhaust fan is provided outside the clean gas outlet to form a negative pressure in the desorption area and the adsorbent distribution area.

[0015] Specifically, the adsorbent distribution area includes a folding plate arranged at the top of the reaction tower body and arranged in multiple layers from top to bottom. The top of the reaction tower body is also provided with an adsorbent feed port. The adsorbent enters the reaction tower body from the adsorbent feed port and is evenly scattered on the folding plate to achieve uniform distribution of the adsorbent in the adsorption area.

[0016] Specifically, the adsorption zone includes an upper adsorption zone and a lower adsorption zone, wherein the upper adsorption zone is located between the lower adsorption zone and the adsorbent cloth zone, and the lower adsorption zone includes a plurality of guide plates for increasing the contact area between the adsorbent and the organic waste gas; the upper adsorption zone and the lower adsorption zone are two parts, realizing the countercurrent contact reaction between the organic waste gas and the adsorbent. According to the flow direction of the machine exhaust gas, in the lower adsorption zone, the adsorbent moves along the guide plate, and on the surface of the guide plate, the organic waste gas reacts with the adsorbent to generate a cleaner waste gas; as the airflow rises, in the upper adsorption zone, the cleaner waste gas further reacts with the adsorbent in the countercurrent contact to generate clean gas that meets the emission standards. Due to the presence of the guide plate, the contact area between the organic waste gas and the adsorbent is significantly increased, thereby reducing the operating resistance and increasing the adsorption efficiency; the ratio of the height of the upper adsorption zone to the thickness of the lower adsorption zone is 1.5 to 3.

[0017] Furthermore, the guide plate is inclined and has an angle of 30° to 75° with the horizontal plane.

[0018] Specifically, the adsorbent delivery system includes a gas delivery device for lifting the adsorbent to the top of the reaction tower body. The adsorbent delivery system adopts a gas lift method, and the lifting gas is pressurized steam or nitrogen + Roots blower.

[0019] Specifically, the mixed gas condensation and separation system includes an induced draft fan connected to the mixed gas outlet, and the induced draft fan is connected to a storage tank for collecting organic matter and condensed water through a heat exchange condenser; the mixed gas of the desorbed organic waste gas and hot steam is then physically separated by an open structure, and after condensation treatment by the induced draft fan (to generate negative pressure in the desorption zone) and the heat exchanger, the mixture is recovered in the storage tank.

[0020] Furthermore, the heat exchange condenser includes a heat exchange bin and a cooling water coil arranged in the heat exchange bin and used to increase the cooling area. The cooling water coil is provided with a cooling water inlet at the lowest end and a cooling water outlet at the highest end; the inlet of the heat exchange bin is connected to the induced draft fan, and the outlet is connected to the storage tank.

[0021] Furthermore, a condensate outlet is circumferentially provided at the bottom of the storage tank, and an organic matter outlet is circumferentially provided at the top of the storage tank. A water baffle for raising the water level to facilitate the outflow of organic matter is also provided inside the storage tank and at the organic matter outlet. In the storage tank, organic matter and condensate are separated by gravity and discharged regularly.

[0022] Specifically, the adsorbent is one of hard granular activated carbon (hydrophobic) or resin particles. The above material has high strength and wear resistance and is not easy to be crushed during multiple cycles.

[0023] In another aspect, the present invention provides an operation method of the moving bed organic waste gas treatment system as described above, which is as follows:

[0024] After the organic waste gas enters the adsorbent gathering structure, it passes through the lower adsorption area, upper adsorption area, and adsorbent distribution area from bottom to top, and is discharged from the top clean gas outlet after being adsorbed by the adsorbent and meeting the standards;

[0025] The adsorbent passes through the adsorbent distribution area, the upper adsorption area, the lower adsorption area, the adsorbent gathering structure, the open structure, the adsorbent collection structure, and the adsorbent conveying system from top to bottom, and then circulates back to the adsorbent distribution area of ​​the reaction tower body;

[0026] In the desorption area, low-pressure steam is introduced into the adsorbent collection structure to achieve desorption and regeneration of the adsorbent. The regenerated adsorbent passes through the adsorbent delivery system for circulation, and the mixed gas of the desorbed organic waste gas and hot steam passes through the mixed gas outlet and enters the heat exchange condenser by the induced draft fan. The organic matter and condensed water after cooling in the heat exchange condenser are separated, and then enter the storage tank, where they are separated by gravity and discharged regularly.

[0027] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0028] The present invention sets an inclined guide plate in the adsorption area to increase the contact area when the organic waste gas and the adsorbent are in countercurrent contact reaction. The flowing adsorbent can significantly reduce the operating resistance of the device. The adsorbent is recycled in the system to ensure the continuity of the organic waste gas treatment process, and there is no need to set up multiple groups for switching like traditional fixed adsorption beds to achieve continuous treatment. Compared with the traditional method of setting up two or more groups of fixed adsorption beds to ensure continuous treatment of organic waste gas, this system effectively reduces the volume, saves space, and reduces the construction and operation costs of the site limited enterprise. The structure of this system is relatively simpler, which reduces the problems of decreased system stability and high requirements for the control system caused by frequent switching of adsorption beds, and is more convenient for maintenance and management.

[0029] Furthermore, hard granular activated carbon or resin particles are used as adsorbents, which have high strength and wear resistance and are not easily crushed during multiple cycles, thus ensuring long-term stable operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the present invention.

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1 It is a schematic diagram of the structure of the present invention.

[0033] Among them: 1 is the reaction tower body; 2 is the adsorbent distribution area; 3 is the adsorption area; 31 is the upper adsorption area; 32 is the lower adsorption area; 4 is the desorption area; 41 is the adsorbent gathering structure; 42 is the open structure; 43 is the adsorbent collection structure; 44 is the organic waste gas inlet; 45 is the low-pressure steam inlet; 46 is the mixed gas outlet; 5 is the adsorbent conveying system; 6 is the mixed gas condensation and separation system; 61 is the induced draft fan; 62 is the heat exchange condenser; 621 is the cooling water outlet; 622 is the cooling water inlet; 63 is the storage tank; 631 is the organic matter outlet; 632 is the condensed water outlet; 7 is the clean gas outlet; 8 is the adsorbent feed port. DETAILED DESCRIPTION

[0034] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are only examples consistent with some aspects of the present invention as detailed in the appended claims.

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] Example 1

[0037] See also Figure 1 As shown, this embodiment provides a moving bed organic waste gas treatment system, comprising a reaction tower body 1, wherein the reaction tower body 1 is provided with a desorption zone 4, an adsorption zone 3, an adsorbent distribution zone 2 and a clean gas outlet 7 in sequence from bottom to top, and the desorption zone 4 is connected to the adsorbent distribution zone 2 through an adsorbent delivery system 5;

[0038] The desorption zone 4 includes an adsorbent gathering structure 41 of an inverted trapezoidal structure, the top of the adsorbent gathering structure 41 is fixedly connected to the reaction tower body 1, and the bottom is circumferentially fixed with an open structure 42 with an opening facing downward and an adjustable distance from the reaction tower body 1, and an adsorbent collecting structure 43 of an inverted trapezoidal structure is arranged directly below the open structure 42, and a low-pressure steam inlet 45 is arranged on the side wall of the adsorbent collecting structure 43, the top of the adsorbent collecting structure 43 is fixedly connected to the reaction tower body 1, and the bottom is communicated with the adsorbent delivery system 5, and the side wall of the adsorbent gathering structure 41 is provided with an organic waste gas inlet 44;

[0039] A mixed gas outlet 46 is provided in an area corresponding to the side wall of the reaction tower body 1 between the adsorbent gathering structure 41 and the open structure 42 . The mixed gas outlet 46 is also connected to a mixed gas condensation and separation system 6 for actively extracting the mixed gas.

[0040] Furthermore, the open structure 42 first separates the adsorption zone 3 and the desorption zone 4 from the structure. Secondly, in the desorption zone 4, due to the disturbance of the flow field by the low-pressure steam, some particles move upward, which is not conducive to desorption. The blocking effect of the open structure 42 can reduce this adverse effect. When the particles move from top to bottom in the flow field, the flow cross section increases and the flow rate decreases after passing through the open structure 42, which is conducive to uniform contact between the particles and the steam and improves the desorption effect. Third, the annular area formed by the adsorbent gathering structure 41, the open structure 42, and the side wall of the reaction tower body 1 is a uniform buffer zone, which is conducive to reducing the influence of the mixed gas on the flow field of the desorption zone 4 when it is sucked, thereby keeping the flow field of the desorption zone 4 relatively stable.

[0041] Specifically, an exhaust fan is provided outside the clean gas outlet 7 to form a negative pressure in the desorption area 3 and the adsorbent distribution area 2 .

[0042] Specifically, the adsorbent distribution area 2 includes a folding plate arranged at the top of the reaction tower body 1 and arranged in multiple layers from top to bottom. The top of the reaction tower body 1 is also provided with an adsorbent feed port 8. The adsorbent enters the reaction tower body 1 from the adsorbent feed port 8 and is evenly scattered on the folding plate to achieve uniform distribution of the adsorbent in the adsorption area 3.

[0043] Specifically, the adsorption zone 3 includes an upper adsorption zone 31 and a lower adsorption zone 32. The upper adsorption zone 31 is located in the area between the lower adsorption zone 32 and the adsorbent cloth zone 2. The lower adsorption zone 32 includes a plurality of guide plates for increasing the contact area between the adsorbent and the organic waste gas. The upper adsorption zone 32 and the lower adsorption zone 32 are two parts, realizing the countercurrent contact reaction between the organic waste gas and the adsorbent. According to the flow direction of the machine exhaust gas, in the lower adsorption zone 32, the adsorbent moves along the guide plate, and on the surface of the guide plate, the organic waste gas reacts with the adsorbent to generate a cleaner waste gas. As the airflow rises, in the upper adsorption zone 31, the cleaner waste gas further reacts with the adsorbent in the countercurrent contact to generate clean gas that meets the emission standards. Due to the presence of the guide plate, the contact area between the organic waste gas and the adsorbent is significantly increased, thereby reducing the operating resistance and increasing the adsorption efficiency.

[0044] Furthermore, the guide plate is arranged at an angle, and the angle between the guide plate and the horizontal plane is 30° to 75°.

[0045] Specifically, the adsorbent delivery system 5 includes a gas delivery device for lifting the adsorbent to the top of the reaction tower body 1. The adsorbent delivery system 5 adopts a gas lift lifting method, and the lifting gas is pressurized steam or nitrogen + Roots blower.

[0046] Specifically, the mixed gas condensation and separation system 6 includes an induced draft fan 61 connected to the mixed gas outlet 46, and the induced draft fan 61 is connected to a storage tank 63 for collecting organic matter and condensed water through a heat exchange condenser 62; the mixed gas of the desorbed organic waste gas and hot steam is physically separated by the open structure 42, and then condensed by the induced draft fan (to generate negative pressure in the desorption zone 4) and the heat exchanger, and then the mixture is recovered in the storage tank.

[0047] Furthermore, the heat exchange condenser 62 includes a heat exchange bin and a cooling water coil arranged in the heat exchange bin and used to increase the cooling area. The cooling water coil is provided with a cooling water inlet 622 at the lowest end and a cooling water outlet 621 at the highest end; the inlet of the heat exchange bin is connected to the induced draft fan 61, and the outlet is connected to the storage tank 63.

[0048] Furthermore, the storage tank 63 is provided with a condensate outlet 632 in the circumferential direction at the bottom end, and an organic matter outlet 631 in the circumferential direction at the top end. A water baffle for raising the water level to facilitate the outflow of organic matter is also provided inside the storage tank 63 and at the organic matter outlet 631. In the storage tank, the organic matter and condensate are separated by gravity and discharged regularly.

[0049] Specifically, the adsorbent is one of hard granular activated carbon (hydrophobic) or resin particles. The above material has high strength and wear resistance and is not easy to be crushed during multiple cycles.

[0050] Specifically, the negative pressure formed by the adsorption zone 3 and the adsorbent cloth zone 2 is balanced with the negative pressure formed by the desorption zone 4, so that the induced draft fan 61 will not suck the organic waste gas from the adsorption zone 31 to the mixed gas condensation separation system 6, and the exhaust fan at the clean gas outlet 7 will not suck the mixed gas of the desorbed organic waste gas and hot steam into the adsorption zone 3.

[0051] This embodiment provides an operation method of the moving bed organic waste gas treatment system as described above, which is specifically as follows:

[0052] After the organic waste gas enters the adsorbent gathering structure 41, it passes through the lower adsorption area 32, the upper adsorption area 31, and the adsorbent distribution area 2 from bottom to top, and is discharged from the top clean gas outlet 7 after being adsorbed by the adsorbent to meet the standards;

[0053] The adsorbent passes through the adsorbent distribution area 1, the upper adsorption area 31, the lower adsorption area 32, the adsorbent gathering structure 41, the open structure 42, the adsorbent collection structure 43, and the adsorbent delivery system 5 from top to bottom, and then circulates back to the adsorbent distribution area 2 of the reaction tower body 1;

[0054] In the desorption zone 4, low-pressure steam is introduced into the adsorbent collecting structure 43 to realize desorption and regeneration of the adsorbent. The regenerated adsorbent passes through the adsorbent conveying system 5 and is circulated. The mixed gas of the desorbed organic waste gas and the hot steam passes through the mixed gas outlet 46 and enters the heat exchange condenser 62 by the induced draft fan 61. The organic matter and condensed water after cooling in the heat exchange condenser 62 are separated, and then enter the storage tank 63, where they are separated by gravity and discharged regularly.

[0055] At the clean gas outlet 7, due to the suction effect of the rear exhaust fan and the chimney, the negative pressure is about -200 to -400Pa. The pressure values ​​of the contact areas at the bottom of the adsorption zone 3 and the top of the desorption zone 4 are equivalent, both of which are negative pressures of about -100 to -50Pa. The annular area formed between the adsorbent gathering structure 41, the open structure 42, and the side wall of the reaction tower body 1 has an internal negative pressure of about -100 to -150Pa due to the action of the induced draft fan 61.

[0056] Example 2

[0057] The difference between this embodiment and embodiment 1 is that the guide plate can be replaced by a guide tube.

[0058] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0059] It should be understood that the present invention is not limited to what has been described above and that various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A moving bed organic waste gas treatment system, characterized in that: The invention comprises a reaction tower body (1), wherein a desorption zone (4), an adsorption zone (3), an adsorbent distribution zone (2) and a clean gas outlet (7) are sequentially arranged in the reaction tower body (1) from bottom to top, and the desorption zone (4) is connected to the adsorbent distribution zone (2) through an adsorbent delivery system (5); The desorption zone (4) comprises an adsorbent gathering structure (41) of an inverted trapezoidal structure, the top of the adsorbent gathering structure (41) is fixedly connected to the reaction tower body (1), and the bottom is circumferentially fixedly provided with an open structure (42) which opens downward and can adjust the distance between the structure and the reaction tower body (1), an adsorbent collecting structure (43) of an inverted trapezoidal structure is provided directly below the open structure (42), a side wall of the adsorbent collecting structure (43) is provided with a low-pressure steam inlet (45), the top of the adsorbent collecting structure (43) is fixedly connected to the reaction tower body (1), and the bottom is communicated with the adsorbent conveying system (5), and the side wall of the adsorbent gathering structure (41) is provided with an organic waste gas inlet (44); A mixed gas outlet (46) is provided in an area corresponding to the side wall of the reaction tower body (1) between the adsorbent gathering structure (41) and the open structure (42), and the mixed gas outlet (46) is also connected to a mixed gas condensation separation system (6) for actively extracting the mixed gas; The adsorbent distribution area (2) comprises a folding plate arranged at the top of the reaction tower body (1) and arranged in multiple layers from top to bottom. The top of the reaction tower body (1) is also provided with an adsorbent feed port (8). The adsorbent enters the reaction tower body (1) from the adsorbent feed port (8) and is evenly scattered on the folding plate, so as to achieve uniform distribution of the adsorbent in the adsorption area (3); The adsorbent delivery system (5) comprises a gas delivery device for lifting the adsorbent to the top of the reaction tower body (1).

2. The moving bed organic waste gas treatment system according to claim 1, characterized in that: The adsorption zone (3) comprises an upper adsorption zone (31) and a lower adsorption zone (32), wherein the upper adsorption zone (31) is located in the area between the lower adsorption zone (32) and the adsorbent cloth zone (2), and the lower adsorption zone (32) comprises a plurality of guide plates for increasing the contact area between the adsorbent and the organic waste gas.

3. The moving bed organic waste gas treatment system according to claim 2, characterized in that: The guide plate is inclined and has an angle of 30° to 75° with the horizontal plane.

4. The moving bed organic waste gas treatment system according to claim 1, characterized in that: The mixed gas condensation separation system (6) comprises an induced draft fan (61) connected to the mixed gas outlet (46); the induced draft fan (61) is connected to a storage tank (63) for collecting organic matter and condensed water through a heat exchange condenser (62).

5. The moving bed organic waste gas treatment system according to claim 4, characterized in that: The heat exchange condenser (62) comprises a heat exchange chamber and a cooling water coil disposed in the heat exchange chamber and used to increase the cooling area; the cooling water coil is provided with a cooling water inlet (622) at the lowest end and a cooling water outlet (621) at the highest end; the inlet of the heat exchange chamber is connected to the induced draft fan (61), and the outlet is connected to the storage tank (63).

6. The moving bed organic waste gas treatment system according to claim 4, characterized in that: The storage tank (63) is provided with a condensed water outlet (632) in the circumferential direction at the bottom end, and an organic matter outlet (631) in the circumferential direction at the top end. A water baffle for raising the water level to facilitate the outflow of organic matter is also provided in the storage tank (63) and at the organic matter outlet (631).

7. The moving bed organic waste gas treatment system according to claim 1, characterized in that: The adsorbent is one of hard granular activated carbon or resin granules.

8. The operating method of the moving bed organic waste gas treatment system according to any one of claims 1 to 7, characterized in that: The details are as follows: After the organic waste gas enters the adsorbent gathering structure (41), it passes through the adsorption area (3) and the adsorbent distribution area (2) from bottom to top, and is discharged from the top clean gas outlet (7) after being adsorbed by the adsorbent to meet the standards. The adsorbent passes through the adsorbent distribution area (1), the adsorption area (3), the desorption area (4), and the adsorbent delivery system (5) from top to bottom, and then circulates back to the adsorbent distribution area (2) of the reaction tower body (1); In the desorption zone (4), low-pressure steam is introduced to achieve desorption and regeneration of the adsorbent. The regenerated adsorbent passes through the adsorbent delivery system (5) for circulation, and the mixed gas of the desorbed organic waste gas and hot steam enters the mixed gas condensation separation system (6) through the mixed gas outlet (46) and is discharged after treatment.

Images