CN106693642B - Organic waste gas treatment system under waste gas concentration fluctuation working condition - Google Patents
Organic waste gas treatment system under waste gas concentration fluctuation working condition Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
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Abstract
The invention provides an organic waste gas treatment system under the working condition of waste gas concentration fluctuation, which comprises a controller, a filter, a concentration adjusting mechanism, an oxidation waste gas treatment device, a heater, an inlet air pipe, an outer air pipe and an outer air valve, wherein the controller is connected with the filter; an input end of the filter is connected with a waste gas source pipeline, an output end of the filter is connected with an input end of the concentration adjusting mechanism, an output end of the concentration adjusting mechanism is connected with an oxidized waste gas treatment device through an inlet air pipe, the heater is fixed in the oxidized waste gas treatment device, and a first output end of the oxidized waste gas treatment device is connected with an exhaust device; the external air valve is mounted on the external air duct and is in communication connection with the controller, and the external air duct is communicated with the inlet air duct. The organic waste gas treatment system under the working condition of waste gas concentration fluctuation has the advantages of strong stability, low operation cost, low equipment investment cost, small influence on the environment, good waste gas treatment effect and energy conservation.
Description
Technical Field
The invention relates to the field of waste gas treatment devices, in particular to an organic waste gas treatment system under a waste gas concentration fluctuation working condition.
Background
At present, a plurality of methods for treating organic waste gas at home and abroad exist, but the recovery technology and the destruction technology are not lacked. On the basis of the thermal oxidation process based on the destruction technology, under the normal condition, the thermal oxidation process treatment method usually only can treat the waste gas with stable waste gas concentration, and the satisfactory waste gas treatment effect is difficult to achieve under the working conditions of frequent fluctuation of the waste gas concentration and large fluctuation range, and the treatment quality is unstable.
In the actual production process, along with the change of production batch and output, the exhaust emission concentration changes greatly, and the situation that no rule can be followed usually happens, the prior art can not solve the problem of concentration fluctuation at present, and the following disadvantages exist:
1) When the exhaust concentration is high, the waste gas is directly discharged, so that the environment is influenced;
2) The calorific value of the waste gas cannot be effectively utilized;
3) The mixed dilution air volume increases the equipment investment cost;
4) Potential safety hazards exist in equipment;
5) When the concentration of the waste gas is high, the pressure at the production end is easy to be unstable, and the production is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the organic waste gas treatment system under the working condition of waste gas concentration fluctuation, which is used for adjusting the concentration of waste gas before the waste gas enters the treatment device, so that the concentration stability of the waste gas entering the treatment device is ensured, and the organic waste gas treatment system has the advantages of strong stability, low operation cost, low equipment investment cost, small influence on the environment, good waste gas treatment effect and energy conservation.
In order to achieve the above object, the present invention provides an organic waste gas treatment system under the working condition of waste gas concentration fluctuation, comprising a controller, a filter, a concentration adjusting mechanism, an oxidation waste gas treatment device, a heater, an inlet air duct, an external air duct and an external air valve; an input end of the filter is connected with a waste gas source pipeline, an output end of the filter is connected with an input end of the concentration adjusting mechanism, an output end of the concentration adjusting mechanism is connected with the oxidized waste gas treatment device through the inlet air pipe, the heater is fixed in the oxidized waste gas treatment device, and a first output end of the oxidized waste gas treatment device is connected with an exhaust device; the external air valve is mounted on the external air duct and is in communication connection with the controller, and the external air duct is communicated with the inlet air duct.
Preferably, the concentration adjusting mechanism comprises a concentration adjusting device, a heat exchanger, a preheating air pipe, a desorption air pipe, a cooling air valve and a thermal desorption air valve, the cooling air valve and the thermal desorption air valve are respectively in communication connection with the controller, the cooling air valve is installed on a pipeline between the output end of the filter and the input end of the concentration adjusting mechanism, the first end of the preheating air pipe is connected between the output end of the filter and the cooling air valve, the second end of the preheating air pipe is connected with a first input end of the heat exchanger, the first end of the desorption air pipe is connected between the cooling air valve and an input end of the concentration adjusting device, and the second end of the desorption air pipe is connected with a first output end of the heat exchanger; and a second input end of the heat exchanger is connected with a second output end of the oxidation waste gas treatment device, and a second output end of the heat exchanger is connected with the exhaust device.
Preferably, the concentration adjusting mechanism further comprises at least one first temperature sensor and a thermal discharge valve, the first temperature sensor is mounted on the desorption air pipe, the thermal discharge valve is mounted between the second output end of the heat exchanger and the exhaust device, and the first temperature sensor and the thermal discharge valve are in communication connection with the controller.
Preferably, an exhaust gas introduction valve is installed between the exhaust gas source pipe and the input end of the filter.
Preferably, at least one concentration sensor is installed between the exhaust gas source pipeline and the exhaust gas introduction valve, and the concentration sensor is in communication connection with the controller.
Preferably, at least one second temperature sensor is arranged in the oxidation waste gas treatment device, and the second temperature sensor is in communication connection with the controller.
Preferably, the oxidation exhaust gas treatment device includes an oxidation chamber and a plurality of heat storage beds, the heater and the second temperature sensor are fixed in the oxidation chamber, and the oxidation chamber is connected to the heat exchanger through a heat exhaust pipe.
Preferably, the heat storage beds are respectively connected with the inlet air pipes through inlet valves, the inlet valves are in communication connection with the controller, the heat storage beds are jointly connected with the exhaust device through exhaust air pipes, the exhaust air pipes are respectively provided with an outlet valve, the outlet valves are in communication connection with the controller, and the exhaust air pipes or the inlet air pipes are provided with a fan.
Preferably, the heat storage bed further comprises a purging air pipe, the heat storage bed is connected with the purging air pipe through a purging valve respectively, one end of the purging air pipe is connected with the output end of the concentration adjusting device, a manual purging adjusting valve is installed on the purging air pipe, and the purging valve is in communication connection with the controller.
Preferably, the waste gas treatment device further comprises a bypass air pipe and a bypass valve, the bypass air pipe is connected between the waste gas source pipeline and the exhaust device, and the bypass valve is installed on the bypass air pipe and is in communication connection with the controller.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the filter is used for filtering particulate matters in the exhaust gas. The concentration adjusting mechanism is adopted to adjust the concentration of the waste gas at the inlet of the oxidized waste gas treatment device, and the waste gas treatment stability of the oxidized waste gas treatment device is improved on the basis of not greatly adjusting the output power of the oxidized waste gas treatment device; the operation cost under the concentration fluctuation working condition is reduced, and the concentration regulator can improve the concentration of the inlet of the treatment equipment when the concentration is low; the equipment investment is reduced, and compared with the increase of the equipment capacity through diluting the air volume, the cost performance of the added concentration regulator and the heat exchanger is higher; the utilization rate of environmental protection facilities is improved, and the influence of direct emission of high-concentration waste gas on the environment is reduced; the pressure stability of the production end equipment is ensured, and the production capacity and the product quality are improved. The heat exchanger is used for cold and heat exchange.
Drawings
FIG. 1 is a schematic structural diagram of an organic waste gas treatment system under a waste gas concentration fluctuation condition according to an embodiment of the present invention.
Detailed Description
The following description of the preferred embodiment of the present invention, in accordance with the accompanying drawings of which 1 is presented to enable a better understanding of the invention as to its functions and features.
Referring to fig. 1, an organic waste gas treatment system under a waste gas concentration fluctuation condition according to an embodiment of the present invention includes a controller (not shown), a filter 1, a concentration adjusting mechanism 2, an oxidation waste gas treatment device 3, a heater 31, an inlet air duct 4, an external air duct 51, and an external air valve 52; an input end of the filter 1 is connected with a waste gas source pipeline (not shown), an output end of the filter 1 is connected with an input end of the concentration adjusting mechanism 2, an output end of the concentration adjusting mechanism 2 is connected with the oxidation waste gas treatment device 3 through the inlet air pipe 4, the heater 31 is fixed in the oxidation waste gas treatment device 3, and a first output end of the oxidation waste gas treatment device 3 is connected with an exhaust device 6; the outer air valve 52 is mounted on the outer air duct 51 and is in communication with the controller, and the outer air duct 51 is communicated with the inlet duct 4.
The filter 1 is used to filter out particulate matter in the exhaust gas. The concentration adjusting mechanism 2 is adopted to adjust the concentration of the waste gas at the inlet of the oxidized waste gas treatment device 3, and the waste gas treatment stability of the oxidized waste gas treatment device 3 is improved on the basis of not greatly adjusting the output power of the oxidized waste gas treatment device 3; the utilization rate of environmental protection facilities is improved, and the influence of direct emission of high-concentration waste gas on the environment is reduced.
Wherein, the concentration adjusting mechanism 2 comprises a concentration adjusting device 21, a heat exchanger 22, a preheating air pipe 23, a desorption air pipe 24, a cooling air valve 25 and a thermal desorption air valve 26, the cooling air valve 25 and the thermal desorption air valve 26 are respectively in communication connection with the controller, the cooling air valve 25 is installed on a pipeline between the output end of the filter 1 and the input end of the concentration adjusting mechanism 2, the first end of the preheating air pipe 23 is connected between the output end of the filter 1 and the cooling air valve 25, the second end of the preheating air pipe 23 is connected with a first input end of the heat exchanger 22, the first end of the desorption air pipe 24 is connected between the cooling air valve 25 and an input end of the concentration adjusting device 21, and the second end of the desorption air pipe 24 is connected with a first output end of the heat exchanger 22; a second input end of the heat exchanger 22 is connected to a second output end of the oxidation exhaust gas treatment device 3, and a second output end of the heat exchanger 22 is connected to the exhaust device 6.
The concentration adjusting device 21 may be an existing exhaust gas treatment device having a function of adsorbing and desorbing exhaust gas, which includes adsorption materials such as activated carbon (granular carbon, honeycomb carbon, or carbon fiber) and zeolite molecular sieves. The heat exchanger 22 may be a dividing wall type heat exchanger, which may be a tube array type, a plate type or a heat pipe, etc., and the high temperature side of the heat exchanger 22 is made of high temperature resistant material and keeps warm. The heat exchanger 22 is used for heat exchange.
The concentration adjusting mechanism 2 further comprises at least a first temperature sensor (not shown) and a thermal discharge valve 27, the first temperature sensor is mounted on the desorption air duct 24, the thermal discharge valve 27 is mounted between the second output end of the heat exchanger 22 and the exhaust device 6, and the first temperature sensor and the thermal discharge valve 27 are in communication connection with the controller.
An exhaust gas introduction valve 7 is installed between the exhaust gas source pipe and the input end of the filter 1. At least one concentration sensor is arranged between the waste gas source pipeline and the waste gas leading-in valve 7, and the concentration sensor is in communication connection with the controller.
The oxidation waste gas treatment device 3 can adopt a direct-fired furnace, a catalytic oxidation furnace, a regenerative oxidation furnace and a regenerative catalytic oxidation furnace, the regenerative catalytic oxidation furnace can be in a two-chamber, three-chamber or rotary structure, and the oxidation chamber of the regenerative catalytic oxidation furnace is provided with at least one maintenance manhole.
In this embodiment, the oxidation exhaust gas treatment device 3 is a regenerative catalytic oxidation furnace, which includes an oxidation chamber 31 and three regenerative beds 33, the heater 31 and the second temperature sensor are fixed in the oxidation chamber 31, and the oxidation chamber 31 is connected to the heat exchanger 22 through a heat exhaust pipe 34. The heater 31 includes an output power adjusting device, the output power adjusting device and the second temperature sensor are connected to the controller in communication, and the type of the heater 31 is not limited.
The heat storage beds 33 are respectively connected with the inlet air pipes 4 through inlet valves 41, the inlet valves 41 are in communication connection with the controller, the heat storage beds 33 are jointly connected with the exhaust device 6 through exhaust air pipes 35, the exhaust air pipes 35 are respectively provided with an outlet valve 36, the outlet valve 36 is in communication connection with the controller, and the inlet air pipes 4 are provided with a fan 42. The heat storage beds 33 are filled with a certain amount of ceramic heat storage filler for waste heat recovery.
The blower 42 is used to provide a power source for the carrier gas and may be located on the inlet ductwork 4 or on the exhaust ductwork 35.
The device further comprises a purging air pipe 8, the heat storage bed 33 is connected with the purging air pipe 8 through a purging valve 81, one end of the purging air pipe 8 is connected with the output end of the concentration adjusting device 21, a purging manual adjusting valve 82 is installed on the purging air pipe 8, and the purging valve 81 is in communication connection with the controller.
The waste gas exhaust device further comprises a bypass vent pipe 91 and a bypass valve 92, the bypass vent pipe 91 is connected between the waste gas source pipeline and the exhaust device 6, and the bypass valve 92 is installed on the bypass vent pipe 91 and is in communication connection with the controller.
The working principle of the organic waste gas treatment system under the working condition of waste gas concentration fluctuation of the embodiment of the invention is as follows:
when the temperature of the oxidation chamber 31 needs to be raised, fresh air is introduced from the outside air duct 51 by the fan 42, and is sent into the oxidation chamber 31 through the inlet duct 4 and the heat storage bed 33, and the inside of the oxidation chamber 31 is heated by the heater 31.
When the exhaust gas is in the normal concentration range: the waste gas introducing valve 7 and the cooling air valve 25 are opened, and the waste gas is sent to the oxidation chamber 31 through the concentration adjusting device 21 for thermal cracking.
When the concentration of the waste gas from the source end is lower than that of the organic waste gas adsorbed by the adsorbing material in the concentration adjusting device 21, the organic matter in the concentration adjusting device 21 desorbs part of the adsorbed waste gas under the action of the pressure of the filter 1, and the concentration of the waste gas entering the oxidation chamber 31 is improved. Reducing the externally supplied heating value required for flue gas cracking.
When the concentration of the source end exhaust gas is greater than the concentration absorbed by the adsorbing material in the concentration adjusting device 21 and the adsorbing material in the concentration adjusting device 21 is not saturated, the adsorbing material continues to absorb the organic matters in the exhaust gas until the organic matters in the adsorbing material and the exhaust gas reach equilibrium. The outlet concentration of the concentration adjusting device 21 is smaller than the inlet concentration value, and the situation that high-concentration waste gas is directly sent into the oxidation chamber 31 to generate high temperature is effectively reduced. The thermal discharge valve 27 is a proportional type regulating valve, and the opening degree of the thermal discharge valve can be regulated according to the first temperature sensor on the desorption air pipe 24, so that the concentration of the organic matters desorbed from the concentration regulating device 21 can be controlled to be smoothly changed. When the concentration of the waste gas from the source end is extremely low, the thermal desorption air valve 26 and the thermal discharge valve 27 are opened, the cooling air valve 25 is closed, the on-line thermal desorption of the adsorption material is realized, the organic matters remained on the adsorption material of the concentration adjusting device 21 are desorbed, the heat value is provided for the oxidation chamber 31, the energy consumption is reduced, and meanwhile, the guarantee is provided for the occurrence of the subsequent high-concentration working condition.
The concentration of the waste gas is adjusted before the waste gas enters the treatment device, so that the concentration of the waste gas entering the treatment equipment is stable. The concentration adjusting device 21 can realize on-line regeneration, and the organic waste gas on the concentration adjusting device 21 is analyzed by the low-concentration waste gas, and the method has the following advantages:
(1) The stability of the waste gas treatment system is improved, and the output power of the heater 31 of the oxidation chamber 31 does not need to be adjusted greatly.
(2) The operation cost under the concentration fluctuation working condition is reduced, and the concentration regulating device 21 can improve the concentration of the inlet of the treatment equipment during low concentration
(3) The cost performance of the concentration adjusting device 21 and the heat exchanger 22 is higher than that of the concentration adjusting device 21 and the heat exchanger 22 which increase the capacity of the equipment by diluting the air volume
(4) The utilization rate of the environmental protection facilities is improved, and the influence of the direct emission of high-concentration waste gas on the environment is reduced.
(5) The pressure stability of the production end equipment is ensured, and the production capacity and the product quality are improved
While the present invention has been described in detail and with reference to the embodiments thereof as shown in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (8)
1. An organic waste gas treatment system under the working condition of waste gas concentration fluctuation is characterized by comprising a controller, a filter, a concentration adjusting mechanism, an oxidation waste gas treatment device, a heater, an inlet air duct, an outer air duct and an outer air valve; an input end of the filter is connected with a waste gas source pipeline, an output end of the filter is connected with an input end of the concentration adjusting mechanism, an output end of the concentration adjusting mechanism is connected with the oxidized waste gas treatment device through the inlet air pipe, the heater is fixed in the oxidized waste gas treatment device, and a first output end of the oxidized waste gas treatment device is connected with an exhaust device; the external air valve is mounted on the external air duct and is in communication connection with the controller, and the external air duct is communicated with the inlet air duct;
the concentration adjusting mechanism comprises a concentration adjusting device, a heat exchanger, a preheating air pipe, a desorption air pipe, a cooling air valve and a thermal desorption air valve, the cooling air valve and the thermal desorption air valve are respectively in communication connection with the controller, the cooling air valve is installed on a pipeline between the output end of the filter and the input end of the concentration adjusting mechanism, the first end of the preheating air pipe is connected between the output end of the filter and the cooling air valve, the second end of the preheating air pipe is connected with a first input end of the heat exchanger, the first end of the desorption air pipe is connected between the cooling air valve and an input end of the concentration adjusting device, and the second end of the desorption air pipe is connected with a first output end of the heat exchanger; a second input end of the heat exchanger is connected with a second output end of the oxidation waste gas treatment device, and a second output end of the heat exchanger is connected with the exhaust device;
the concentration adjusting mechanism further comprises at least one first temperature sensor and a thermal discharge valve, the first temperature sensor is mounted on the desorption air pipe, the thermal discharge valve is mounted between the second output end of the heat exchanger and the exhaust device, and the first temperature sensor and the thermal discharge valve are in communication connection with the controller;
the thermal discharge valve is a proportional type regulating valve.
2. The system of claim 1, wherein an exhaust gas inlet valve is disposed between the exhaust gas source pipeline and the input end of the filter.
3. The system of claim 2, wherein at least one concentration sensor is installed between the exhaust source pipeline and the exhaust introduction valve, and the concentration sensor is in communication with the controller.
4. The system for treating organic waste gas under the condition of waste gas concentration fluctuation according to any one of claims 1 to 3, wherein at least one second temperature sensor is arranged in the oxidizing waste gas treatment device, and the second temperature sensor is in communication connection with the controller.
5. The organic waste gas treatment system under the condition of waste gas concentration fluctuation according to claim 4, wherein the oxidizing waste gas treatment device comprises an oxidizing chamber and a plurality of heat storage beds, the heater and the second temperature sensor are fixed in the oxidizing chamber, the oxidizing chamber is connected with the heat exchanger through a heat exhaust pipe, the heater comprises an output power adjusting device, and the output power adjusting device is in communication connection with the controller.
6. The system of claim 5, wherein the heat storage beds are connected to the inlet air pipes through inlet valves, the inlet valves are connected to the controller, the heat storage beds are connected to the exhaust device through an exhaust air pipe, the exhaust air pipes are respectively provided with outlet valves, the outlet valves are connected to the controller, and a blower is installed on the exhaust air pipe or the inlet air pipe.
7. The organic waste gas treatment system under the condition of waste gas concentration fluctuation according to claim 6, further comprising a purging air pipe, wherein the heat storage beds are respectively connected with the purging air pipe through a purging valve, one end of the purging air pipe is connected with the output end of the concentration adjusting device, a purging manual adjusting valve is mounted on the purging air pipe, and the purging valve is in communication connection with the controller.
8. The system of claim 7, further comprising a bypass line connected between the source line and the exhaust, and a bypass valve mounted in the bypass line and in communication with the controller.
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| CN201710137358.2A CN106693642B (en) | 2017-03-09 | 2017-03-09 | Organic waste gas treatment system under waste gas concentration fluctuation working condition |
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| CN201710137358.2A CN106693642B (en) | 2017-03-09 | 2017-03-09 | Organic waste gas treatment system under waste gas concentration fluctuation working condition |
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| CN105879574A (en) * | 2016-05-16 | 2016-08-24 | 南京大学 | Buffering adjustment device for concentration load of VOCs (Volatile Organic Compounds) |
| CN205850524U (en) * | 2016-06-29 | 2017-01-04 | 山东昊威环保科技有限公司 | Catalytic combustion system after waste gas Adsorption Concentration |
| CN206549438U (en) * | 2017-03-09 | 2017-10-13 | 上海兰宝环保科技有限公司 | Organic waste gas treatment system under exhaust gas concentration fluctuation operating mode |
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- 2017-03-09 CN CN201710137358.2A patent/CN106693642B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5567229A (en) * | 1994-10-27 | 1996-10-22 | Durr Industries, Inc. | Rotary adsorption unit with regenerative thermal oxidizer |
| JP2014169844A (en) * | 2013-03-05 | 2014-09-18 | Toyobo Co Ltd | Heat storage combustion apparatus, and gas combustion processing method |
| CN203183884U (en) * | 2013-03-15 | 2013-09-11 | 湖北吉隆危废处理技术有限公司 | Rotation and heat accumulation type organic waste gas treatment system |
| CN105879574A (en) * | 2016-05-16 | 2016-08-24 | 南京大学 | Buffering adjustment device for concentration load of VOCs (Volatile Organic Compounds) |
| CN205850524U (en) * | 2016-06-29 | 2017-01-04 | 山东昊威环保科技有限公司 | Catalytic combustion system after waste gas Adsorption Concentration |
| CN206549438U (en) * | 2017-03-09 | 2017-10-13 | 上海兰宝环保科技有限公司 | Organic waste gas treatment system under exhaust gas concentration fluctuation operating mode |
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