Process and treatment equipment for treating chlorobenzene organic waste gas by RTO (Regenerative Thermal Oxidation)

Abstract

The invention discloses a process and treatment equipment for treating chlorobenzene organic waste gas through RTO, and belongs to the technical field of waste gas treatment. The device comprises a washing treatment mechanism, a gas-water separation mechanism, an RTO treatment mechanism, a spraying deacidification mechanism and an adsorption treatment mechanism which are sequentially arranged in the waste gas conveying direction, the RTO treatment mechanism comprises a heat storage oxidation reactor and a shunting assembly, the heat storage oxidation reactor comprises three furnace bodies, the tops of the three furnace bodies are fixedly connected with air inlet pipes, and the tops of the three air inlet pipes are communicated with the shunting assembly; according to the invention, the shunting assembly is arranged, and the shunting disc is driven to rotate by utilizing the adjusting motor, so that the shunting port is aligned with the air inlet pipes at different positions in sequence, and therefore, the alternate air inlet operation of each furnace body is realized, the use of valves is reduced, further, frequent maintenance and replacement of easily-damaged movable parts are avoided, and the control coordination difficulty and the failure rate are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a process and treatment equipment for treating chlorobenzene organic waste gas using RTO. Background Art

[0002] After nitration of nitrochlorobenzene to obtain the initial product, a tail gas containing chlorobenzene is produced, mixed with a small amount of nitrochlorobenzene. This tail gas has a strong odor and is highly toxic, requiring appropriate treatment to meet emission standards.

[0003] In the field of organic waste gas purification, the regenerative combustion oxidation method (RTO technology) is a new technology developed in recent years based on the combustion method. It collects waste gases such as chlorobenzene, nitrochlorobenzene, and oil surfactants and then enters the regenerative oxidation reactor for treatment.

[0004] The regenerative thermal oxidation reactor (RTO) consists of three chambers, known as a three-chamber RTO. The three-chamber RTO operates by simultaneously purging one regenerative chamber while the other is being vented. After a cycle, the exhaust gas enters the regenerative chamber that discharged clean air during the previous cycle, while the regenerative chamber that originally received the exhaust gas is flushed with clean air or air. Each chamber has three stages: intake, exhaust, and air purging. The switching of these three stages across the three chambers creates three exhaust gas pathways. During intake, the exhaust gas absorbs heat from the regenerative chamber of the intake chamber, raising the temperature to the full oxidation reaction temperature. After entering the combustion chamber and being fully combusted, it enters the exhaust chamber, transferring heat to the regenerative bed before being discharged. The purging chamber replaces any residual exhaust gas in the intake chamber with air and delivers it to the combustion chamber.

[0005] In existing thermal regenerative oxidation reactors, the air intake of the three furnaces is controlled by three independently installed pipelines and valves. Since the three furnaces require frequent air supply and exhaust operations, the valves require real-time and accurate control. However, due to their operating environment, they are exposed to corrosive gases for a long time, resulting in a shortened service life and increased failure rate. This makes it difficult to ensure stable and timely response control after long-term use. Therefore, this application proposes improvements. Summary of the Invention

[0006] The present invention provides a process and treatment equipment for treating chlorobenzene-type organic waste gas by RTO, which can solve the problem in the prior art of using a large number of valves for independent air intake pipeline control and difficulty in maintaining accurate control for a long time in a corrosive gas environment.

[0007] The present invention provides a treatment device for treating chlorobenzene-based organic waste gas by RTO, which comprises a washing treatment mechanism, a gas-water separation mechanism, an RTO treatment mechanism, a spraying and acid removal mechanism, and an adsorption treatment mechanism, which are sequentially arranged along the waste gas conveying direction; each mechanism is connected by a pipeline, and a fan is arranged on the pipeline;

[0008] The RTO treatment mechanism includes a thermal storage oxidation reactor and a diversion assembly for feeding exhaust gas into the thermal storage oxidation reactor. The thermal storage oxidation reactor includes three furnace bodies. The tops of the three furnace bodies are fixedly connected to an air inlet pipe. The tops of the three air inlet pipes are connected to the diversion assembly. A cleaning pipe is provided on one side of two of the air inlet pipes. The tops of the cleaning pipes are connected to an external air supply device. The bottoms of the three furnace bodies are fixedly connected to an exhaust pipe.

[0009] The diversion assembly includes a diversion cover, the top of the diversion cover is fixedly connected to a docking tube, an adjusting motor is arranged inside the diversion cover, the output end of the adjusting motor is fixedly connected to a diversion disk, and a diversion port is opened on the edge of the diversion disk, and the position of the diversion port is set corresponding to the top of the intake pipe.

[0010] As a further solution of the present invention: a protective cover plate is fixedly connected to the outer wall of the regulating motor, the top of the protective cover plate is configured as a pointed cone, and the middle of the protective cover plate is fixedly connected to the inner wall of the diverter cover via a connecting frame.

[0011] As a further solution of the present invention: a sealing docking ring is fixedly connected to the bottom of the protective cover plate, and the bottom of the sealing docking ring is rotatably connected to the diverter plate.

[0012] As a further solution of the present invention: a plurality of heaters are fixedly installed on the inner wall of the diversion hood.

[0013] As a further solution of the present invention: a friction contact plate is fixedly connected to the bottom of the inner wall of the diversion cover, three docking holes are opened on the edge of the friction contact plate, and the tops of the three air inlet pipes are respectively fixedly connected to the three docking holes; the friction contact plate is made of wear-resistant and corrosion-resistant material, specifically zirconia ceramic.

[0014] As a further solution of the present invention: the adsorption treatment mechanism includes an adsorption box, an adsorption rack is fixedly installed on one side of the inner wall of the adsorption box, the inner wall of the adsorption rack is filled with activated carbon filler, and the adsorption box is provided with a through opening on one side close to the adsorption rack, an exhaust hood plate is fixedly connected to one side of the through opening, and an exhaust pipe is fixedly connected to one side of the exhaust hood plate.

[0015] As a further solution of the present invention: a condensation and water removal assembly is provided on the other side of the inner wall of the adsorption box, and the condensation and water removal assembly includes a plurality of staggered cooling plates, and cooling pipes are embedded in the interior of the cooling plates. The cooling pipes are connected to an external refrigeration device, and condensation plates are fixedly connected on both sides of the cooling plates.

[0016] As a further solution of the present invention: the bottom of the adsorption box is fixedly connected to a water collecting box, the bottom of the water collecting box is fixedly connected to a water collecting pipe, and the top of the water collecting box is arranged corresponding to the bottom of the condensation and water removal assembly.

[0017] As a further solution of the present invention: a strip guide plate is fixedly connected to one side of the adsorption box close to the condensation and water removal component, an adsorption treatment tube is fixedly connected to one side of the strip guide plate, and a strip guide groove is provided inside the strip guide plate.

[0018] As a further solution of the present invention: a dewatering frame is slidably provided between the condensation dewatering assembly and the adsorption frame, and the inner wall of the dewatering frame is filled with dewatering filler.

[0019] A RTO treatment process for treating chlorobenzene-based organic waste gas comprises the following steps:

[0020] Step 1: Wash and remove impurities from the waste gas to be treated, and then separate the gas and water;

[0021] Step 2: Send the separated gas to the diversion component for temporary storage;

[0022] Step 3: The gas is alternately fed into the three furnaces of the thermal oxidation reactor through the diversion component for RTO treatment;

[0023] Step 4: Send the treated gas to the spray deacidification mechanism for spray deacidification;

[0024] Step 5: The gas that has been sprayed and deacidified is sent to an adsorption treatment mechanism for adsorption to remove dioxins, and then discharged after adsorption treatment.

[0025] Compared with the prior art, the present invention has the following beneficial effects: by providing a diversion assembly, the present invention temporarily stores the exhaust gas before it enters the thermal storage oxidation reactor, and by using an adjusting motor to drive the diversion plate to rotate, so that the diversion port is aligned with the intake pipes at different positions in sequence, thereby realizing alternating intake operation of each furnace body. Compared with the traditional method of setting multiple independent intake pipe control valves, the present invention reduces the use of valves, thereby avoiding the frequent maintenance and replacement of vulnerable moving parts. By using a single adjusting motor as the motion control component, the control coordination difficulty and failure rate are reduced compared with the independent setting of multiple intake control valves.

[0026] The diversion assembly of the present invention heats the exhaust gas inside the diversion hood by providing a heater, thereby achieving a preheating operation of the exhaust gas, thereby shortening the heating time of the exhaust gas after entering the furnace body, improving the treatment efficiency, and at the same time reducing the temperature drop of the furnace body caused by the exhaust gas feeding operation, thereby reducing the heat storage time of the furnace body, increasing the alternating operation speed of the furnace body, and thus improving the overall treatment speed of the RTO treatment mechanism;

[0027] In order to remove residual dioxins in exhaust gas, the present invention utilizes activated carbon to adsorb excess dioxins. Furthermore, in order to reduce the impact of water vapor on the activated carbon adsorption operation, the present invention provides a condensation and water removal component in the adsorption box to remove water vapor by cooling and condensing, thereby ensuring the adsorption and removal effect of dioxins. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A process flow chart of the treatment process of the present invention;

[0029] Figure 2 is a three-dimensional schematic diagram of the diversion component of the present invention;

[0030] Figure 3 is a cross-sectional schematic diagram of the diversion component of the present invention;

[0031] Figure 4 It is a three-dimensional schematic diagram of the adsorption treatment mechanism of the present invention;

[0032] Figure 5 It is a cross-sectional schematic diagram of the adsorption treatment mechanism of the present invention.

[0033] Description of reference numerals:

[0034] 101. Furnace body; 102. Air inlet pipe; 103. Exhaust pipe; 104. Cleaning pipe; 2. Diverter assembly; 201. Diverter hood; 202. Docking pipe; 203. Protective cover plate; 204. Adjusting motor; 205. Diverter plate; 206. Diverter port; 207. Heater; 208. Sealing docking ring; 209. Friction contact plate; 3. Adsorption treatment mechanism; 301. Adsorption box; 302. Strip guide groove; 303. Adsorption treatment pipe; 304. Strip guide plate; 305. Exhaust hood plate; 306. Exhaust pipe; 307. Cooling plate; 308. Cooling pipe; 309. Condensation plate; 310. Water removal rack; 311. Adsorption rack; 312. Activated carbon filler; 313. Water collecting box; 314. Water collecting pipe; 315. Through port. DETAILED DESCRIPTION

[0035] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0036] The present invention provides a RTO treatment process for treating chlorobenzene organic waste gas, comprising the following steps:

[0037] Step 1: Wash and remove impurities from the waste gas to be treated, and then separate the gas and water;

[0038] Step 2: Send the separated gas to the diversion component 2 for temporary storage;

[0039] Step 3: The gas is alternately fed into the three furnace bodies 101 of the thermal oxidation reactor through the diversion component 2 for RTO treatment;

[0040] Step 4: Send the treated gas to the spray deacidification mechanism for spray deacidification;

[0041] Step 5: The gas that has been sprayed and deacidified is sent to the adsorption treatment mechanism 3 for adsorption to remove dioxins, and then discharged after adsorption treatment.

[0042] like Figures 1 to 5 As shown, the present invention provides an RTO treatment device for chlorobenzene organic waste gas, which is sequentially provided with a washing treatment mechanism, a gas-water separation mechanism, an RTO treatment mechanism, a spraying acid removal mechanism and an adsorption treatment mechanism 3 along the waste gas conveying direction; each mechanism is connected by a pipeline, and a fan unit is provided on the pipeline to provide power for gas transportation; the above-mentioned washing treatment mechanism is used to remove dust impurities in the waste gas, and the gas-water separation mechanism is used to separate the acid and water inside the waste gas to avoid damage to the ceramic heat storage body caused by the thermal stress generated by vaporization when liquid water contacts the high-temperature ceramic heat storage body; the spraying acid removal mechanism includes a water washing tower and an alkali washing tower, which are connected in series to achieve cooling and acid removal; the specific structures of the washing treatment mechanism, the gas-water separation mechanism and the spraying acid removal mechanism are all implemented by existing technical means.

[0043] See also Figure 2 The RTO treatment mechanism includes a thermal storage oxidation reactor and a diversion assembly 2 for feeding exhaust gas into the thermal storage oxidation reactor. The thermal storage oxidation reactor includes three furnace bodies 101. The tops of the three furnace bodies 101 are fixedly connected to an air inlet pipe 102. A cleaning pipe 104 is provided on one side of each of the two air inlet pipes 102. The top of the cleaning pipe 104 is connected to an external air supply device. The bottoms of the three furnace bodies 101 are fixedly connected to an exhaust pipe 103. The specific structure of the thermal storage oxidation reactor including its furnace body 101 is implemented with reference to the existing technical means of the existing three-chamber RTO treatment equipment. In this embodiment, the improved part is that the tops of the three air inlet pipes 102 are connected to the diversion assembly 2.

[0044] See also Figure 3The diversion assembly 201 includes a diversion hood 201, and the top of the diversion hood 201 is fixedly connected to a docking pipe 202, which is used to receive the washed exhaust gas. An adjusting motor 204 is provided inside the diversion hood 201, and the output end of the adjusting motor 204 is fixedly connected to a diversion plate 205. A diversion port 206 is provided on the edge of the diversion plate 205, and the position of the diversion port 206 is set corresponding to the top of the intake pipe 102. In this application, the diversion plate 205 is driven to rotate by the adjusting motor 204, so that the diversion port 206 is aligned with the intake pipe 102 at different positions in turn, thereby realizing the alternating air intake operation of each furnace body 101. Compared with the traditional setting of multiple independent intake pipe 102 control valves, this application reduces the use of valves, thereby avoiding the frequent maintenance and replacement of vulnerable moving parts. Using an adjusting motor 204 as a motion control component reduces the control coordination difficulty and failure rate compared with independently setting multiple intake control valves.

[0045] In one embodiment, in order to prevent the exhaust gas from corroding and damaging the regulating motor 204, the outer wall of the regulating motor 204 is fixedly connected with a protective cover plate 203, and the bottom of the protective cover plate 203 is fixedly connected with a sealing docking ring 208. The bottom of the sealing docking ring 208 is rotatably connected to the diverter plate 205. The middle part of the protective cover plate 203 is fixedly connected to the inner wall of the diverter cover 201 through a connecting frame. The covering of the protective cover plate 203 is used to block the exhaust gas to protect the regulating motor 204. In the specific implementation, the protective cover plate 203 is made of heat-insulating material to reduce the working environment temperature of the regulating motor 204 and extend the service life of the motor. The top of the protective cover plate 203 is set to a pointed cone shape, and the pointed cone-shaped top is used to guide and divert the airflow sent in by the docking pipe 202, so that it moves to the edge, thereby facilitating the exhaust gas to pass through the diversion port 206 and enter the intake pipe 102.

[0046] In one embodiment, a plurality of heaters 207 are fixedly installed on the inner wall of the diverter hood 201. By setting the heaters 207, the exhaust gas inside the diverter hood 201 is heated, thereby realizing the preheating operation of the exhaust gas, thereby shortening the heating time of the exhaust gas after entering the furnace body 101, improving the processing efficiency, and at the same time reducing the temperature drop of the furnace body 101 caused by the exhaust gas feeding operation, thereby reducing the heat storage time of the furnace body 101, and increasing the alternating operation speed of the furnace body 101, thereby increasing the overall processing speed of the RTO processing mechanism.

[0047] In one embodiment, in order to avoid damage to the diverter cover 201 caused by friction between the rotation of the diverter disc 205 and the bottom of the inner wall of the diverter cover 201, a friction contact plate 209 is fixedly connected to the bottom of the inner wall of the diverter cover 201. The top of the friction contact plate 209 is in contact with the bottom surface of the diverter disc 205. Three docking holes are opened on the edge of the friction contact plate 209. The tops of the three air inlet pipes are respectively fixedly connected to the three docking holes; the friction contact plate 209 is made of wear-resistant and corrosion-resistant material, specifically zirconia ceramics.

[0048] Chlorine-containing organic matter is easy to generate dioxins when oxidized at low temperature. Even if the high temperature conditions are controlled, it is difficult to ensure the complete decomposition of dioxins. Moreover, dioxins will be resynthesized at 200-450℃. The flue gas temperature after spraying and deacidification is in this range. Therefore, in one embodiment, please refer to Figure 4 and Figure 5 To achieve dioxin removal, the adsorption treatment mechanism 3 includes an adsorption box 301. An adsorption rack 311 is fixedly mounted on one side of the inner wall of the adsorption box 301. The inner wall of the adsorption rack 311 is filled with activated carbon filler 312. A through hole 315 is opened on the side of the adsorption box 301 near the adsorption rack 311. An exhaust cover plate 305 is fixedly connected to one side of the through hole 315. An exhaust pipe 306 is fixedly connected to one side of the exhaust cover plate 305. The high specific surface area of ​​the activated carbon is used to adsorb excess dioxins.

[0049] See also Figure 5 , because the water vapor saturation phenomenon will significantly reduce the adsorption efficiency of activated carbon, and at the same time, water molecules and dioxin molecules will compete for adsorption sites in the activated carbon micropores; therefore, in order to reduce the influence of water vapor, in one embodiment, a condensation and water removal component is provided on the other side of the inner wall of the adsorption box 301 of the present application, and the condensation and water removal component includes a plurality of cooling plates 307 staggered in an upper and lower position, and the width of the cooling plate 307 is smaller than the width of the inner cavity of the adsorption box 301. By staggering the plurality of cooling plates 307, the flow path of the exhaust gas in the process of passing through the condensation and water removal component is extended, thereby extending the contact time between the exhaust gas and the condensation and water removal component, and improving the water removal effect; a cooling pipe 308 is embedded in the interior of the cooling plate 307, and the cooling pipe 308 is connected to an external refrigeration device, and condensation plates 309 are fixedly connected on both sides of the cooling plate 307.

[0050] In order to collect and discharge the condensed water flow, the bottom of the adsorption box 301 is fixedly connected to a water collecting box 313, the bottom of the water collecting box 313 is fixedly connected to a water collecting pipe 314, and the top of the water collecting box 313 is arranged corresponding to the bottom of the condensation dewatering component.

[0051] In one embodiment, a strip guide plate 304 is fixedly connected to one side of the adsorption box 301 close to the condensation and water removal component, an adsorption treatment tube 303 is fixedly connected to one side of the strip guide plate 304, and a strip guide groove 302 is provided inside the strip guide plate 304. The strip guide groove 302 corresponds to the top of one side of the condensation and water removal component. The airflow is horizontally dispersed through the strip guide groove 302, thereby increasing the contact area between the airflow and the cooling plate 307, thereby improving the water removal efficiency.

[0052] In one embodiment, in order to further achieve the filtration and removal of water vapor, a dewatering frame 310 is slidably provided between the condensation dewatering assembly and the adsorption frame 311. The inner wall of the dewatering frame 310 is filled with dewatering filler. The sliding setting of the dewatering frame 310 also facilitates the replacement of the water outlet filler.

[0053] When the present invention is in use, the waste gas to be treated passes through the washing and treatment mechanism and the gas-water separation mechanism in sequence, and then the water vapor is removed after the impurities are removed and washed. The waste gas after the water vapor is removed is transported by the docking pipe 202 into the diverter cover 201 of the diverter assembly 2; it is temporarily stored in the inner cavity of the diverter cover 201, and at this time, the waste gas is preheated and heated by starting the heater 207; according to the alternating working order of the three furnace bodies 101 of the thermal storage oxidation reactor, the regulating motor 204 drives the diverter plate 205 to rotate, so that the diverter port 206 is docked with the air inlet pipe 102, so as to realize the waste gas transportation to the corresponding furnace body 101 position; the thermal storage oxidation reactor is completed For RTO treatment of waste gas, the treated waste gas is sent to the spray deacidification mechanism through the exhaust pipe 103 for deacidification and cooling operations, and then sent to the adsorption box 301 through the adsorption treatment pipe 303. The waste gas entering the adsorption box 301 moves along the gaps between the several cooling plates 307 of the condensation and dehydration component. During the movement, the water vapor in it is condensed on the condensation plate 309 when it is cold. After excessive condensation, it drips under the action of gravity and is received and collected by the water collection box 313 and collected and discharged by the water collection pipe 314; then the waste gas passes through the dehydration filler for further dehydration, passes through the activated carbon filler 312, and is discharged after the dioxins and the like are filtered and removed.

[0054] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A RTO treatment equipment for treating chlorobenzene organic waste gas, characterized in that: A washing treatment mechanism, a gas-water separation mechanism, an RTO treatment mechanism, a spraying and acid removal mechanism, and an adsorption treatment mechanism (3) are sequentially arranged along the exhaust gas conveying direction; The RTO treatment mechanism comprises a thermal storage oxidation reactor and a diversion assembly (2), wherein the thermal storage oxidation reactor comprises three furnace bodies (101), the tops of the three furnace bodies (101) are fixedly connected to an air intake pipe (102), the tops of the three air intake pipes (102) are communicated with the diversion assembly (2), one side of each of the two air intake pipes (102) is provided with a cleaning pipe (104), and the bottoms of the three furnace bodies (101) are fixedly connected to an exhaust pipe (103); The diversion assembly (2) comprises a diversion cover (201), the top of the diversion cover (201) is fixedly connected to a butt-jointing pipe (202), an adjustment motor (204) is provided inside the diversion cover (201), an output end of the adjustment motor (204) is fixedly connected to a diversion disk (205), a diversion opening (206) is provided on the edge of the diversion disk (205), and the position of the diversion opening (206) is arranged corresponding to the top of the intake pipe (102).

2. The RTO treatment equipment for treating chlorobenzene-based organic waste gas according to claim 1, characterized in that: The outer wall of the regulating motor (204) is fixedly connected to a protective cover plate (203), the top of the protective cover plate (203) is configured in a pointed cone shape, and the middle of the protective cover plate (203) is fixedly connected to the inner wall of the diverter cover (201) via a connecting frame.

3. The RTO treatment equipment for treating chlorobenzene-based organic waste gas according to claim 2, characterized in that: The bottom of the protective cover plate (203) is fixedly connected to a sealing docking ring (208), and the bottom of the sealing docking ring (208) is rotatably connected to the diverter plate (205).

4. The RTO treatment equipment for treating chlorobenzene-based organic waste gas according to claim 1, characterized in that: A plurality of heaters (207) are fixedly mounted on the inner wall of the diversion hood (201).

5. The RTO treatment equipment for treating chlorobenzene-based organic waste gas according to claim 1, characterized in that: The adsorption treatment mechanism (3) comprises an adsorption box (301), an adsorption rack (311) is fixedly mounted on one side of the inner wall of the adsorption box (301), the inner wall of the adsorption rack (311) is filled with activated carbon filler (312), a through opening (315) is provided on one side of the adsorption box (301) close to the adsorption rack (311), an exhaust hood plate (305) is fixedly connected to one side of the through opening (315), and an exhaust pipe (306) is fixedly connected to one side of the exhaust hood plate (305).

6. The RTO treatment equipment for treating chlorobenzene-based organic waste gas according to claim 5, characterized in that: A condensation and water removal assembly is provided on the other side of the inner wall of the adsorption box (301), and the condensation and water removal assembly includes a plurality of staggered cooling plates (307), a cooling pipe (308) is embedded in the interior of the cooling plate (307), and the cooling pipe (308) is connected to an external refrigeration device, and condensation plates (309) are fixedly connected to both sides of the cooling plate (307).

7. The RTO treatment equipment for treating chlorobenzene-based organic waste gas according to claim 6, characterized in that: The bottom of the adsorption box (301) is fixedly connected to a water collecting box (313), the bottom of the water collecting box (313) is fixedly connected to a water collecting pipe (314), and the top of the water collecting box (313) is arranged corresponding to the bottom of the condensation dewatering component.

8. The RTO treatment equipment for treating chlorobenzene-based organic waste gas according to claim 5, characterized in that: A strip guide plate (304) is fixedly connected to one side of the adsorption box (301) close to the condensation and water removal component, an adsorption treatment tube (303) is fixedly connected to one side of the strip guide plate (304), and a strip guide groove (302) is provided inside the strip guide plate (304).

9. The RTO treatment equipment for treating chlorobenzene-based organic waste gas according to claim 6, characterized in that: A dewatering frame (310) is slidably provided between the condensation dewatering assembly and the adsorption frame (311), and the inner wall of the dewatering frame (310) is filled with a dewatering filler.

10. A process for treating chlorobenzene organic waste gas by RTO, characterized in that: Step 1: Wash and remove impurities from the waste gas to be treated, and then separate the gas and water; Step 2: sending the separated gas to the diversion component (2) for temporary storage; Step 3: alternately sending the gas into the three furnace bodies (101) of the thermal storage oxidation reactor through the diversion component for RTO treatment; Step 4: Send the treated gas to the spray deacidification mechanism for spray deacidification; Step 5: The gas that has been sprayed and deacidified is sent to the adsorption treatment mechanism (3) for adsorption treatment and then discharged.

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