CN215822707U - Organic waste gas recovery treatment system - Google Patents
Organic waste gas recovery treatment system Download PDFInfo
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- CN215822707U CN215822707U CN202121974053.5U CN202121974053U CN215822707U CN 215822707 U CN215822707 U CN 215822707U CN 202121974053 U CN202121974053 U CN 202121974053U CN 215822707 U CN215822707 U CN 215822707U
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Abstract
The utility model provides an organic waste gas recovery and treatment system, and relates to the field of waste gas treatment; the organic waste gas recovery and treatment system comprises a first heat exchanger, an expander, an adsorption tank and a condenser; the first heat exchanger is communicated with the expander; the adsorption tank is filled with an adsorption material; the bottom of the adsorption tank is provided with an organic waste gas inlet and a desorbed substance outlet, and the top of the adsorption tank is provided with a purified gas outlet and a steam inlet; the purified gas outlet is communicated with a first valve; the steam inlet is communicated with a second valve; the expansion machine is communicated with the bottom of the adsorption tank through an organic waste gas inlet, and a third valve is arranged between the expansion machine and the organic waste gas inlet; a gas inlet of the condenser is communicated with the bottom of the adsorption tank through a desorbed substance outlet, and a fourth valve is arranged between the condenser and the desorbed substance outlet; the utility model can effectively reduce the water content of the organic waste gas, thereby improving the adsorption performance of the adsorption material on the organic waste gas and further improving the adsorption efficiency.
Description
Technical Field
The utility model relates to the field of waste gas treatment, in particular to an organic waste gas recovery and treatment system.
Background
Volatile Organic Compounds (VOCs) are a general term for a class of Compounds, generally refer to Volatile Organic chemicals having high vapor pressure at normal temperature and pressure, and mainly include alkanes, olefins, aromatic hydrocarbons, various oxygen-containing hydrocarbons, halogenated hydrocarbons, nitrogen hydrocarbons, sulfur hydrocarbons, low-boiling polycyclic aromatic hydrocarbons, and the like, which are Organic pollutants that generally exist in air and have complex compositions. Typical emission sources of VOCs can be classified into artificial emission sources (including fixed sources and mobile sources) and natural emission sources (including biological sources and non-biological sources), wherein the artificial emission sources are mainly used and mostly caused by production processes, product consumption behaviors and automobile exhaust of petrochemical related industries. The commonly used treatment methods of industrial VOCs include catalytic combustion, thermal combustion, adsorption, biological treatment, and the like.
At present, the adsorption method-solvent recovery process for treating VOCs can reduce the exhaust emission, realize the recycling of resources and reduce the resource consumption of unit products to the maximum extent. However, the adsorption efficiency of the porous adsorbent material in the conventional adsorption method on the organic waste gas still needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an organic waste gas recovery and treatment system which can effectively improve the adsorption efficiency of an adsorption material on organic waste gas.
The utility model provides an organic waste gas recovery and treatment system, which comprises: the system comprises a first heat exchanger, an expander, an adsorption tank and a condenser;
the first heat exchanger is communicated with the expander and is used for cooling the compressed organic waste gas and conveying the cooled organic waste gas to the expander;
the adsorption tank is filled with an adsorption material; the bottom of the adsorption tank is provided with an organic waste gas inlet and a desorbed substance outlet, and the top of the adsorption tank is provided with a purified gas outlet and a steam inlet; the purified gas outlet is communicated with a first valve; the steam inlet is communicated with a second valve;
the expansion machine is communicated with the bottom of the adsorption tank through the organic waste gas inlet, and a third valve is arranged between the expansion machine and the organic waste gas inlet;
the gas inlet of condenser passes through the desorption export with the bottom intercommunication of adsorption tank, just the condenser with be provided with the fourth valve between the desorption export.
The inventor finds that the adsorption performance of the organic waste gas adsorption material in the adsorption tank is greatly influenced by the moisture in the organic waste gas in the experimental process; wherein the higher the water content is, the poorer the adsorption performance of the adsorption material on the organic waste gas is; in order to solve the problem, the inventor creatively cools the compressed organic waste gas and then conveys the organic waste gas to an expander, the air pressure of the organic waste gas in the expander is rapidly reduced, so that the temperature of the organic waste gas is rapidly reduced, the moisture in the organic waste gas is condensed into liquid water drops, the moisture content of the organic waste gas is reduced, the adsorption performance of an adsorption material in an adsorption tank on the organic waste gas is improved, and the adsorption efficiency is further improved.
Furthermore, the organic waste gas recovery and treatment device also comprises a compressor; the compressor is communicated with the first heat exchanger and is used for compressing the organic waste gas and then conveying the compressed organic waste gas to the first heat exchanger.
Further, the organic waste gas recovery and treatment device also comprises a second heat exchanger; the second heat exchanger is arranged between the first heat exchanger and the expander and is used for conveying the organic waste gas cooled by the first heat exchanger to the expander after being cooled; the gas outlet of the expander is communicated with the cold medium inlet of the second heat exchanger; and a cold medium outlet of the second heat exchanger is communicated with the adsorption tank through the third valve.
Further, the organic waste gas recovery and treatment device also comprises a circulation branch for circulating the gas which is not condensed by the condenser to the first heat exchanger; one end of the circulating branch is communicated with a gas outlet of the condenser, and the other end of the circulating branch is communicated with a heat medium inlet of the first heat exchanger; and a fifth valve is arranged on the circulating branch.
Furthermore, the organic waste gas recovery and treatment device also comprises a second heat exchanger and a circulating device; the second heat exchanger is arranged between the expander and the third valve and is used for heating the organic waste gas after passing through the expander and then conveying the organic waste gas to the adsorption tank; the inlet of the circulating device is communicated with the cold medium outlet of the first heat exchanger; the outlet of the circulating device is communicated with the heat medium inlet of the second heat exchanger; and the heat medium outlet of the second heat exchanger is communicated with the cold medium inlet of the first heat exchanger.
Further, the organic waste gas recovery and treatment device also comprises a circulation branch for circulating the gas which is not condensed by the condenser to the first heat exchanger; one end of the circulating branch is communicated with a gas outlet of the condenser, and the other end of the circulating branch is communicated with a heat medium inlet of the first heat exchanger; and a fifth valve is arranged on the circulating branch.
Further, the gas outlet of the expander is communicated with the cold medium inlet of the first heat exchanger; and a cold medium outlet of the first heat exchanger is communicated with the adsorption tank through the third valve.
Further, the organic waste gas recovery and treatment device also comprises a circulation branch for circulating the gas which is not condensed by the condenser to the first heat exchanger; one end of the circulating branch is communicated with a gas outlet of the condenser, and the other end of the circulating branch is communicated with a cold medium inlet of the first heat exchanger; and a fifth valve is arranged on the circulating branch.
Furthermore, the organic waste gas recovery and treatment device also comprises an exhaust fan; the air inlet of the exhaust fan is communicated with the gas outlet of the condenser; and a sixth valve is arranged between the exhaust fan and the condenser.
Further, the adsorption material comprises activated carbon, activated carbon fibers, molecular sieves or adsorption resins.
The technical scheme provided by the embodiment of the utility model has the following beneficial effects: the organic waste gas recovery and treatment system in the embodiment of the utility model comprises a first heat exchanger, an expander, an adsorption tank and a condenser; the first heat exchanger is communicated with the expander and is used for cooling the compressed organic waste gas and conveying the cooled organic waste gas to the expander; the adsorption tank is filled with an adsorption material; the bottom of the adsorption tank is provided with an organic waste gas inlet and a desorbed substance outlet, and the top of the adsorption tank is provided with a purified gas outlet and a steam inlet; the purified gas outlet is communicated with a first valve; the steam inlet is communicated with a second valve; the expansion machine is communicated with the bottom of the adsorption tank through the organic waste gas inlet, and a third valve is arranged between the expansion machine and the organic waste gas inlet; a gas inlet of the condenser is communicated with the bottom of the adsorption tank through the desorbed substance outlet, and a fourth valve is arranged between the condenser and the desorbed substance outlet; through after will compressing organic waste gas is carried to after cooling to the expander, organic waste gas is in atmospheric pressure in the expander reduces rapidly, makes organic waste gas's temperature reduces rapidly, leads to moisture condensation in the organic waste gas becomes liquid water droplet, reduces organic waste gas's moisture content, thereby improves the adsorption material is to organic waste gas's adsorption performance, and then improves adsorption efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an organic waste gas recovery and treatment system in embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of an organic waste gas recovery and treatment system in embodiment 2 of the present invention;
FIG. 3 is a schematic structural diagram of an organic waste gas recovery and treatment system in embodiment 3 of the present invention;
wherein, 1, a compressor; 2. a first heat exchanger; 3. a second heat exchanger; 4. an expander; 5. a third valve; 6. an adsorption tank; 7. a fourth valve; 8. a first valve; 9. a second valve; 10. a condenser; 11. a seventh valve; 12. a sixth valve; 13. an exhaust fan; 14. a fifth valve; 15. a circulation branch; 16. and a circulating device.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.
Example 1
Referring to fig. 1, the present embodiment provides an organic waste gas recycling treatment system, including: the system comprises a compressor 1, a first heat exchanger 2, a second heat exchanger 3, an expander 4, an adsorption tank 6, a condenser 10, a circulation branch 15 and an exhaust fan 13;
the compressor 1 is communicated with the expander 4 sequentially through the first heat exchanger 2 and the second heat exchanger 3 and is used for compressing the organic waste gas, secondarily cooling the organic waste gas through the first heat exchanger 2 and the second heat exchanger 3 and then conveying the organic waste gas to the expander 4; the organic waste gas is compressed by the compressor 1, is cooled by the first heat exchanger 2 and the second heat exchanger 3 and enters the expansion machine 4, the air pressure of the organic waste gas in the expansion machine 4 is rapidly reduced, so that the temperature of the organic waste gas is rapidly reduced, the moisture in the organic waste gas is condensed into liquid water drops, and the moisture content of the organic waste gas entering the adsorption tank 6 is reduced;
the adsorption tank 6 is filled with an adsorption material for adsorbing the organic waste gas; the bottom of the adsorption tank 6 is provided with an organic waste gas inlet and a desorbed substance outlet, and the top is provided with a purified gas outlet and a steam inlet; the purified gas outlet is communicated with a first valve 8; the steam inlet is communicated with a second valve 9; the purified gas outlet is used for discharging the purified organic waste gas into the atmosphere; a first valve 8 for closing or opening said purge gas outlet; the steam inlet is used for introducing superheated steam into the adsorption tank 6 to desorb the adsorption material adsorbed with the organic waste gas; a second valve 9 for closing or opening the steam inlet;
the air outlet of the expander 4 is communicated with the cold medium inlet of the second heat exchanger 3; a cold medium outlet of the second heat exchanger 3 is communicated with the bottom of the adsorption tank 6 through the organic waste gas inlet, and a third valve 5 is arranged between the cold medium outlet of the second heat exchanger 3 and the organic waste gas inlet; the air outlet of the expander 4 is communicated with the cold medium inlet of the second heat exchanger 3, so that the organic waste gas passing through the expander 4 can be used as the cold medium of the second heat exchanger 3 to cool the organic waste gas in the heat medium channel of the second heat exchanger 3, and meanwhile, the temperature of the organic waste gas entering the adsorption tank 6 can be properly increased, and the reasonable and full utilization of heat is realized;
a gas inlet of the condenser 10 is communicated with the bottom of the adsorption tank 6 through the desorbed substance outlet, and a fourth valve 7 is arranged between the condenser 10 and the desorbed substance outlet; the gas outlet of the condenser 10 is communicated with the air inlet of an exhaust fan 13 through a sixth valve 12; the gas outlet of the condenser 10 is also communicated with the gas inlet of the compressor 1 through a circulation branch 15, and is used for circulating the desorbed objects which are not completely condensed to the compressor 1 to realize reprocessing; a fifth valve 14 is arranged on the circulating branch 15 and used for disconnecting or connecting the circulating branch 15; a condensate outlet of the condenser 10 is communicated with the outside through a seventh valve 11 and is used for discharging liquid generated after the desorbed substances are condensed to the outside for subsequent recovery treatment; a seventh valve 11 is used for closing or opening the condensate outlet of the condenser 10; after the adsorption is finished, desorbing the adsorption material adsorbed with the organic waste gas by the superheated steam; after the desorption is accomplished, can pass through the fan will adsorb the residual vapor suction in jar 6, avoid remaining in the adsorption tank 6 because of the vapor that the desorption in-process used influences organic waste gas's adsorption effect.
Exemplarily, in the present embodiment, the number of the adsorption tanks 6 is two; correspondingly, the number of the first valve 8, the second valve 9, the third valve 5 and the fourth valve 7 is equal to that of the adsorption tanks 6, and the number of the first valve 8, the second valve 9, the third valve 5 and the fourth valve 7 is two; two adsorption tanks 6 are arranged in parallel.
As a variation of this embodiment, the number of adsorption tanks 6 and, correspondingly, first valves 8, second valves 9, third valves 5 and fourth valves 7 may also be more than three; the adsorption tanks 6 are arranged in parallel; it will be understood that the number of the adsorption tanks 6 and the corresponding first, second, third and fourth valves 8, 9, 5 and 7 can be selectively set according to actual production needs in the industrial process.
Illustratively, in this embodiment, the adsorbent material is activated carbon.
As a modification of this embodiment, the adsorbent may be activated carbon fiber, molecular sieve, or adsorbent resin.
It should be noted that the expander 4 is a conventional one, and therefore, the detailed structure thereof is not described herein.
In the present embodiment, the expander 4 is an air separation expander.
The application method of the organic waste gas recovery and treatment system in the embodiment is as follows:
during adsorption, a first valve 8 and a corresponding third valve 5 are opened, so that the organic waste gas inlet of one adsorption tank 6 is communicated with the cold medium outlet of the second heat exchanger 3, and the purified gas outlet is communicated with the outside atmosphere; after the compression pressure of the organic waste gas is increased by the compressor 1, the organic waste gas is cooled by the first heat exchanger 2 and the second heat exchanger 3 in sequence and then enters the expander 4; the temperature of the organic waste gas after being compressed and cooled is reduced to be lower than the dew point temperature of water after being decompressed by an expander 4, so that the water in the organic waste gas after being decompressed is condensed into water drops and removed; then, the low-pressure organic waste gas decompressed by the expander 4 enters the second heat exchanger 3 to be used as a cooling medium to exchange heat with the compressed high-pressure organic waste gas, so that the temperature of the high-pressure organic waste gas is reduced and the temperature of the low-pressure organic waste gas is increased; low-pressure organic waste gas flowing out of a cold medium outlet of the second heat exchanger 3 enters an adsorption tank 6 through a third valve 5 for adsorption and purification, and the purified organic waste gas is discharged into the atmosphere through a first valve 8;
when the adsorption material in one adsorption tank 6 is saturated, closing the corresponding first valve 8 and third valve 5, so that the adsorption tank 6 which adsorbs the organic waste gas is disconnected from the cold medium outlet of the second heat exchanger 3 and the atmosphere; opening another first valve 8 and a corresponding third valve 5 to enable the organic waste gas inlet of another adsorption tank 6 to be communicated with the cold medium outlet of the second heat exchanger 3, enabling the purified gas outlet to be communicated with the atmosphere, and continuously adsorbing the organic waste gas to realize the switching of the adsorption tanks 6; meanwhile, a second valve 9 and a corresponding fourth valve 7 are opened, superheated steam is introduced into the adsorption tank 6 saturated in adsorption through the second valve 9, the adsorption material in the adsorption tank is desorbed and regenerated, and desorbed substances flow through the fourth valve 7 through the desorbed substance outlet and enter the condenser 10 for condensation, so that condensate and non-condensable gas are obtained; the condensate is discharged to the outside through a seventh valve 11, and is collected and then subjected to subsequent treatment; the non-condensable gas is mixed with the organic waste gas at the inlet of the compressor 1 through the circulating branch 15 and the fifth valve 14 and is reprocessed; after the desorption is finished, closing the corresponding second valve 9, fifth valve 14 and seventh valve 11, pumping out residual water vapor in the desorbed adsorption tank 6 by using an exhaust fan 13, opening the first valve 8 when the temperature in the desorbed adsorption tank 6 is reduced to be below 100 ℃, so that part of air is introduced into the desorbed adsorption tank 6, and further cooling the desorbed adsorption tank 6 to be below 50 ℃ for later use; the two adsorption tanks 6 sequentially and alternately carry out adsorption and desorption processes, so that the organic waste gas is continuously recovered and treated.
Example 2
Referring to fig. 2, the present embodiment is different from embodiment 1 in that the organic waste gas recovery and treatment device further includes a circulation device 16; the compressor 1, the heat medium channel of the first heat exchanger 2, the expander 4 and the cold medium channel of the second heat exchanger 3 are communicated in sequence; the cold medium outlet of the second heat exchanger 3 is communicated with the bottom of the adsorption tank 6 through a third valve 5 and the purified gas inlet; the circulating device 16 contains a heat exchange medium; the heat exchange medium outlet of the circulating device 16 is communicated with the heat medium inlet of the second heat exchanger 3; the heat medium outlet of the second heat exchanger 3 is communicated with the cold medium inlet of the first heat exchanger 2; a cold medium outlet of the first heat exchanger 2 is communicated with a heat exchange medium inlet of the circulating device 16; the heat exchange medium in the circulating device 16 flows through the heat medium channel of the second heat exchanger 3 through the heat medium inlet of the second heat exchanger 3 to exchange heat with the low-pressure organic waste gas flowing through the expander 4, so that the low-pressure organic waste gas in the cold medium channel of the second heat exchanger 3 enters the adsorption tank 6 after being heated up, and the high-pressure organic waste gas in the heat medium channel of the first heat exchanger 2 is cooled through the cold medium channel of the first heat exchanger 2 after the temperature of the heat exchange medium flowing through the second heat exchanger 3 is raised, thereby realizing the full and reasonable utilization of heat.
Illustratively, in the present embodiment, the circulation device 16 includes a liquid storage tank (not shown) and a circulation pump (not shown); the heat exchange medium is stored in the liquid storage pump; the liquid storage tank is provided with a heat exchange medium inlet; the liquid outlet of the circulating pump is a heat exchange medium outlet; a liquid inlet of the circulating pump is communicated with the bottom of the liquid storage tank; a liquid outlet of the circulating pump is communicated with a heat medium inlet of the second heat exchanger 3; and the heat exchange medium inlet on the liquid storage tank is communicated with the cold medium outlet of the first heat exchanger 2.
Example 3
Referring to fig. 3, this embodiment is different from embodiment 1 in that a compressor and a second heat exchanger are not provided in the organic waste gas recovery and treatment system in this embodiment; the embodiment is used for recovering and treating the organic waste gas with certain air pressure; the heat medium outlet of the first heat exchanger 2 is communicated with the air inlet of the expander 4; the air outlet of the expander 4 is communicated with the cold medium inlet of the first heat exchanger 2; a cold medium outlet of the first heat exchanger 2 is communicated with an adsorption tank 6 through a third valve 5; one end of the circulating branch 15 is communicated with a gas outlet of the condenser 10, and the other end is communicated with a cold medium inlet of the first heat exchanger 2; when the device is used, organic waste gas with certain air pressure directly enters the expansion machine 4 after passing through the heat medium channel of the first heat exchanger 2, the organic waste gas after being subjected to pressure reduction and water removal by the expansion machine 4 enters the cold medium channel of the first heat exchanger 2, and directly enters the adsorption tank 6 after passing through the cold medium outlet of the first heat exchanger 2 and the third valve 5 for adsorption.
The above is not relevant and is applicable to the prior art.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An organic waste gas recovery and treatment system, comprising: the system comprises a first heat exchanger, an expander, an adsorption tank and a condenser;
the first heat exchanger is communicated with the expander and is used for cooling the compressed organic waste gas and conveying the cooled organic waste gas to the expander;
the adsorption tank is filled with an adsorption material; the bottom of the adsorption tank is provided with an organic waste gas inlet and a desorbed substance outlet, and the top of the adsorption tank is provided with a purified gas outlet and a steam inlet; the purified gas outlet is communicated with a first valve; the steam inlet is communicated with a second valve;
the expansion machine is communicated with the bottom of the adsorption tank through the organic waste gas inlet, and a third valve is arranged between the expansion machine and the organic waste gas inlet;
the gas inlet of condenser passes through the desorption export with the bottom intercommunication of adsorption tank, just the condenser with be provided with the fourth valve between the desorption export.
2. The organic waste gas recovery and remediation system of claim 1, further comprising a compressor; the compressor is communicated with the first heat exchanger and is used for compressing the organic waste gas and then conveying the compressed organic waste gas to the first heat exchanger.
3. The organic waste gas recovery and remediation system of claim 1, further comprising a second heat exchanger; the second heat exchanger is arranged between the first heat exchanger and the expander and is used for conveying the organic waste gas cooled by the first heat exchanger to the expander after being cooled; the gas outlet of the expander is communicated with the cold medium inlet of the second heat exchanger; and a cold medium outlet of the second heat exchanger is communicated with the adsorption tank through the third valve.
4. The organic waste gas recovery and remediation system of claim 3 further comprising a recycle branch for recycling uncondensed gas from the condenser to the first heat exchanger; one end of the circulating branch is communicated with a gas outlet of the condenser, and the other end of the circulating branch is communicated with a heat medium inlet of the first heat exchanger; and a fifth valve is arranged on the circulating branch.
5. The organic waste gas recovery and remediation system of claim 1, further comprising a second heat exchanger and a circulation device; the second heat exchanger is arranged between the expander and the third valve and is used for heating the organic waste gas after passing through the expander and then conveying the organic waste gas to the adsorption tank; the inlet of the circulating device is communicated with the cold medium outlet of the first heat exchanger; the outlet of the circulating device is communicated with the heat medium inlet of the second heat exchanger; and the heat medium outlet of the second heat exchanger is communicated with the cold medium inlet of the first heat exchanger.
6. The organic waste gas recovery and remediation system of claim 5 further comprising a recycle branch for recycling uncondensed gas from the condenser to the first heat exchanger; one end of the circulating branch is communicated with a gas outlet of the condenser, and the other end of the circulating branch is communicated with a heat medium inlet of the first heat exchanger; and a fifth valve is arranged on the circulating branch.
7. The organic waste gas recovery and remediation system of claim 1, wherein a gas outlet of the expander is in communication with a cold medium inlet of the first heat exchanger; and a cold medium outlet of the first heat exchanger is communicated with the adsorption tank through the third valve.
8. The organic waste gas recovery and remediation system of claim 7 further comprising a recycle branch for recycling uncondensed gas from the condenser to the first heat exchanger; one end of the circulating branch is communicated with a gas outlet of the condenser, and the other end of the circulating branch is communicated with a cold medium inlet of the first heat exchanger; and a fifth valve is arranged on the circulating branch.
9. The organic waste gas recovery and remediation system of claim 1, further comprising an exhaust fan; the air inlet of the exhaust fan is communicated with the gas outlet of the condenser; and a sixth valve is arranged between the exhaust fan and the condenser.
10. The organic waste gas recovery and remediation system of claim 1, wherein the adsorbent material comprises activated carbon, activated carbon fibers, molecular sieves, or adsorbent resins.
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| CN202121974053.5U CN215822707U (en) | 2021-08-20 | 2021-08-20 | Organic waste gas recovery treatment system |
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| CN202121974053.5U CN215822707U (en) | 2021-08-20 | 2021-08-20 | Organic waste gas recovery treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116510503A (en) * | 2023-04-04 | 2023-08-01 | 青岛诺诚化学品安全科技有限公司 | Dynamic high-efficiency treatment equipment and method for VOCs in oil separation tank |
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2021
- 2021-08-20 CN CN202121974053.5U patent/CN215822707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116510503A (en) * | 2023-04-04 | 2023-08-01 | 青岛诺诚化学品安全科技有限公司 | Dynamic high-efficiency treatment equipment and method for VOCs in oil separation tank |
| CN116510503B (en) * | 2023-04-04 | 2024-03-19 | 青岛诺诚化学品安全科技有限公司 | Dynamic high-efficiency treatment equipment and method for VOCs in oil separation tank |
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