CN109529605A - A kind of system and method removing volatile organic gases - Google Patents
A kind of system and method removing volatile organic gases Download PDFInfo
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- CN109529605A CN109529605A CN201811340919.XA CN201811340919A CN109529605A CN 109529605 A CN109529605 A CN 109529605A CN 201811340919 A CN201811340919 A CN 201811340919A CN 109529605 A CN109529605 A CN 109529605A
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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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/656—Manganese, technetium or rhenium
- B01J23/6562—Manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1026—Ruthenium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
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- B01D2255/2065—Cerium
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
A kind of system and method for removing volatile organic gases of the present invention, comprising: for receiving volatile organic gases and Boiler Steam and carrying out preheating gas heat exchanger to volatile organic gases；For receiving the flue gas heater that gas is discharged from gas heat exchanger and is heated to gas；For receiving the VOCs catalytic tower that gas is discharged from flue gas heater and is purified to gas, portion gas in VOCs catalytic tower is discharged into VOCs catalytic tower again, remaining gas is discharged by the exhaust outlet being set in VOCs catalytic tower, a kind of system and method for removing volatile organic gases of the present invention, the problem of significantly solving organic gas exhaust emission environment has economical and environmentally friendly double effects and good social benefit and environmental benefit.
Description
Technical field
The present invention relates to a kind of air utilization system and method more particularly to a kind of systems for removing volatile organic gases
And method.
Background technique
Volatile organic compounds VOCs refers to be depressed in 101.3kPa20 DEG C of normal atmosphere, 260 DEG C of boiling point < organic
The general name of compound, including aliphatic hydrocarbon, aromatic hydrocarbon, containing halohydrocarbon, oxygen-containing hydro carbons, nitrogen-containing hydrocarbons and sulfur-bearing hydro carbons etc.；In view of VOCs
Many kinds of, the features such as industry is numerous for discharge, emission source dispersion, for the target and effect for realizing prevention and control of air pollution, selection is suitable
When administering method be very important.
Organic exhaust gas is generally all with inflammable and explosive, poisonous and harmful, discharge amount and concentration is unstable and processing difficulty is big
Feature；The administering method of VOCs is divided into absorption method and destruction method.Absorption method can be divided into condensation method, absorption process, absorption method, UF membrane
Method etc., destruction method can be divided into dilution diffusion method, direct combustion method, regenerative catalyzed oxidation combustion method, bioanalysis and low-temperature plasma
Body method, and the above method is unable to reach the purpose for efficiently effectively removing VOCs.
Therefore, the administering method for existing VOCs is unable to reach the problems such as efficiently effectively removing the purpose of VOCs, becomes
Those skilled in the art's technical problem urgently to be resolved.
The object of the invention is to the tolerance and concentration levels according to volatile organic gases, develop efficient volatility
Gas-treating processes and device develop volatile organic gases treatment process, based on friendly process and reduction pollutant emission
Task is wanted, increasingly strict legislations of environmental protection is responded actively.
Summary of the invention
The present invention is to solve the administering method of existing VOCs to be unable to reach efficiently the problems such as effectively removing the purpose of VOCs, is mentioned
The system and method for removal volatile organic gases is supplied.
To achieve the above object, the invention adopts the following technical scheme:
Provide a kind of system for removing volatile organic gases, comprising:
For receiving volatile organic gases and Boiler Steam and carrying out preheating gas to the volatile organic gases
Body heat exchanger 1；
For receiving the flue gas heater 2 that gas is discharged from the gas heat exchanger 1 and is heated to the gas；
For receiving the VOCs catalytic tower that gas is discharged from the flue gas heater 2 and is purified to the gas
3；And
The circulating fan being connect respectively with the air inlet of the VOCs catalytic tower 3 and the exhaust outlet 4 by pipeline
6, a part of gas is discharged into the VOCs catalytic tower 3 by the circulating fan 6 again in the VOCs catalytic tower 3
Interior, rest part gas is discharged by the exhaust outlet 4 being set in the VOCs catalytic tower 3.
Further, the volatile organic gases is discharged into the gas heat exchanger 1 by ventilating fan 5.
Further, it is equipped with cordierite cerium-carrying ruthenium manganese three-dimensional catalyst in the VOCs catalytic tower 3, the violet is green
Stone cerium-carrying ruthenium manganese three-dimensional catalyst accounts for the VOCs catalytic tower volume 60-85%.
Further, the gas of 65-75% is discharged by the exhaust outlet 4 in the VOCs catalytic tower 3, described
The gas of 25-35% is discharged into the VOCs catalytic tower 3 by the circulating fan 6 again in VOCs catalytic tower 3.
Further, the cordierite cerium-carrying ruthenium manganese three-dimensional catalyst preparation method the following steps are included:
Step 1: cordierite honeycomb substrates bubble is used distilled water 3~4 hours in 12~17% hydrochloric acid after taking-up
Cleaning, is then dried 3 hours in 105 DEG C of air dry ovens, spare after cooling；
Step 2: prepare solution metal concentration of element be 4~7% manganese nitrate solutions, 19~21% solution of ruthenium trichloride, 15
~23% cerous nitrate solution, then these three solution are configured to mixed solution with volume ratio 1:1:2~6, add in mixed solution
The polypropylene glycol monobutyl ether for entering 6~15mg/L is formed as dispersing agent with 75~90 revs/min of 30~45min of mechanical stirring
Dipping solution；
Step 3: it is small to impregnate 5~6 in 75~85 DEG C of water temperature by the cordierite carrier in the dipping solution
When；Then the cordierite carrier is taken out, is dried at room temperature；
Step 4: the cordierite carrier is placed in the blast heating case of 120 DEG C of conditions it is 1 hour dry, with 3~5 DEG C/
Min is warming up to 370 DEG C, constant temperature calcining 2~3 hours, is warming up to 780 DEG C with 6 DEG C/min, constant temperature calcining 2~5 hours, naturally cold
But, the cordierite cerium-carrying ruthenium manganese three-dimensional catalyst is prepared.
Further, the water absorption rate of the cordierite honeycomb substrates is 22.5-25.1%, load softening point 1460
DEG C, linear expansion coefficient is 2.12~2.34*10-6/℃。
Further, the volatile organic gases by volumetric concentration be 23.1~29.5 μ g/L toluene, 10.2~
The neon of 17.7 μ g/L, the methylene chloride of 1.1~1.4 μ g/L, the trichloro ethylene of 0.4~0.7 μ g/L, 0.2~0.4 μ g/L 1,
1,2- trichloroethanes is, the 1,1,1- trichloroethanes of 0.4~0.7 μ g/L, the hexachlorobutadiene of 0.1~0.3 μ g/L, 0.3~
The chlorobenzene of the chloroform of 0.6 μ g/L and 0.5~0.9 μ g/L are constituted.
Provide a kind of method for removing volatile organic gases, comprising the following steps:
Step 1: volatile organic gases enters gas heat exchanger 1 by ventilating fan 5, using Boiler Steam to described
Volatile organic gases is preheated；
Step 2: the volatile organic gases enters flue gas heater 2；
Step 3: subsequently entering VOCs catalytic tower 3, cordierite cerium-carrying is placed in the VOCs catalytic tower 3
Ruthenium manganese three-dimensional catalyst；
Step 4: by the VOCs catalytic tower 3, treated that the volatile organic gases 25~35% passes through
Circulating fan 6 is again introduced into VOCs catalytic tower as recyclegas, and 65~75% gas is discharged by exhaust outlet 4.
Further, gas heat exchanger 1 described in step 1 be panel-type air heat exchanger, the volatile organic gases into
Gas temperature before entering formula gas heat exchanger described in plate is 15~39 DEG C, after the panel-type air heat exchanger, the volatilization
Property organic gas temperature be 120~150 DEG C.
Further, volatile organic gases temperature described in step 2 is heated to 230~270 DEG C.
The present invention by adopting the above technical scheme, compared with prior art, has the following technical effect that
The problem of invention significantly solves organic gas exhaust emission environment, have economical and environmentally friendly double effects and
Good social benefit and environmental benefit.
Detailed description of the invention
Fig. 1 is the work connection schematic diagram of the system and method for present invention removal volatile organic gases；
Wherein, each appended drawing reference are as follows:
1- gas heat exchanger, 2- flue gas heater, 3-VOCs catalytic tower, 4- exhaust outlet, 5- ventilating fan, 6- circulation
Blower.
Specific embodiment
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,
But following embodiments are not intended to limit the scope of the invention.
Embodiment 1
As shown in Figure 1, the embodiment of the invention provides a kind of systems for removing volatile organic gases, comprising:
It is changed for receiving volatile organic gases and Boiler Steam and carrying out preheating gas to volatile organic gases
Hot device 1；
For receiving the flue gas heater 2 that gas is discharged from gas heat exchanger 1 and is heated to gas；
For receiving the VOCs catalytic tower 3 that gas is discharged from flue gas heater 2 and is purified to gas；And
The circulating fan 6 being connect respectively with the air inlet of VOCs catalytic tower 3 and exhaust outlet 4 by pipeline, VOCs is urged
Change a part of gas in reaction tower 3 to be discharged into again in VOCs catalytic tower 3 by circulating fan 6, rest part gas passes through
Exhaust outlet 4 in VOCs catalytic tower 3 is discharged.
The one aspect of the present embodiment, as shown in Figure 1, volatile organic gases is discharged into gas converting heat by ventilating fan 5
In device 1.
The one aspect of the present embodiment, as shown in Figure 1, the portion gas in VOCs catalytic tower 3 passes through circulating fan 6
It is discharged into VOCs catalytic tower 3 again.
The one aspect of the present embodiment, as shown in Figure 1, the preparation method of cordierite cerium-carrying ruthenium manganese three-dimensional catalyst includes
Following steps:
Step 1: by cordierite honeycomb substrates bubble 4 hours in 14% hydrochloric acid, after taking-up wash with distilled water, so
It is dried 3 hours in 105 DEG C of air dry ovens afterwards, it is spare after cooling；
Step 2: preparing solution metal concentration of element is 6% manganese nitrate solution, 21% solution of ruthenium trichloride, 22% nitric acid
Cerium solution, then these three solution are configured to mixed solution with volume ratio 1:1:5, and poly- the third of 11mg/L is added in mixed solution
Glycol monobutyl ether forms dipping solution as dispersing agent with 90 revs/min of mechanical stirring 40min；
Step 3: being impregnated 5 hours in 85 DEG C of water temperature by cordierite carrier in dipping solution；Then by cordierite
Carrier takes out, and dries at room temperature；
Step 4: cordierite carrier to be placed on to drying 1 hour in the blast heating case of 120 DEG C of conditions, with 5 DEG C/min heating
To 370 DEG C, constant temperature calcining 3 hours, 780 DEG C are warming up to 6 DEG C/min, constant temperature calcining 5 hours, violet was prepared in natural cooling
Green stone cerium-carrying ruthenium manganese three-dimensional catalyst.
The one aspect of the present embodiment, as shown in Figure 1, the water absorption rate of cordierite honeycomb substrates is 23.2%, loading is soft
Changing point is 1460 DEG C, linear expansion coefficient 2.21*10-6/℃
The one aspect of the present embodiment, as shown in Figure 1, being equipped with cordierite cerium-carrying ruthenium manganese three in VOCs catalytic tower 3
Catalyst is tieed up, cordierite cerium-carrying ruthenium manganese three-dimensional catalyst accounts for VOCs catalytic tower volume 60%.
The one aspect of the present embodiment, as shown in Figure 1,75% gas passes through 4 row of exhaust outlet in VOCs catalytic tower 3
Out, 25% gas is discharged into VOCs catalytic tower 3 by circulating fan 6 again in VOCs catalytic tower 3.
The one aspect of the present embodiment, as shown in Figure 1, the first that volatile organic gases is 28.1 μ g/L by volumetric concentration
Benzene, the neon of 13.8 μ g/L, the methylene chloride of 1.4 μ g/L, the trichloro ethylene of 0.7 μ g/L, 0.4 μ g/L tri- chloroethene of 1,1,2-
Alkane is, the 1,1,1- trichloroethanes of 0.7 μ g/L, the hexachlorobutadiene of 0.3 μ g/L, the chloroform of 0.5 μ g/L and 0.7 μ g/L
Chlorobenzene is constituted.
The present embodiment provides a kind of method for removing volatile organic gases, comprising the following steps:
Step 1: volatile organic gases enters gas heat exchanger 1 by ventilating fan 5, using Boiler Steam to volatilization
Property organic gas is preheated；
Step 2: volatile organic gases enters flue gas heater 2；
Step 3: subsequently entering VOCs catalytic tower 3, cordierite cerium-carrying ruthenium manganese is placed in VOCs catalytic tower 3
Three-dimensional catalyst；
Step 4: passing through 6 conduct of circulating fan by treated the volatile organic gases 25% of VOCs catalytic tower 3
Recyclegas is again introduced into VOCs catalytic tower, and 75% gas is discharged by exhaust outlet 4.
The one aspect of the present embodiment, as shown in Figure 1, gas heat exchanger 1 is panel-type air heat exchanger, volatilization in step 1
Property organic gas to enter the gas temperature before panel-type air heat exchanger be 15 DEG C, after panel-type air heat exchanger, volatility has
The temperature of machine gas is 136 DEG C.
The one aspect of the present embodiment, as shown in Figure 1, volatile organic gases temperature is heated to 265 DEG C in step 2.
Embodiment 2
As shown in Figure 1, the embodiment of the invention provides a kind of systems for removing volatile organic gases, comprising:
It is changed for receiving volatile organic gases and Boiler Steam and carrying out preheating gas to volatile organic gases
Hot device 1；
For receiving the flue gas heater 2 that gas is discharged from gas heat exchanger 1 and is heated to gas；
For receiving the VOCs catalytic tower 3 that gas is discharged from flue gas heater 2 and is purified to gas；And
The circulating fan 6 being connect respectively with the air inlet of VOCs catalytic tower 3 and exhaust outlet 4 by pipeline, VOCs is urged
Change a part of gas in reaction tower 3 to be discharged into again in VOCs catalytic tower 3 by circulating fan 6, rest part gas passes through
Exhaust outlet 4 in VOCs catalytic tower 3 is discharged.
The one aspect of the present embodiment, as shown in Figure 1, volatile organic gases is discharged into gas converting heat by ventilating fan 5
In device 1.
The one aspect of the present embodiment, as shown in Figure 1, the portion gas in VOCs catalytic tower 3 passes through circulating fan 6
It is discharged into VOCs catalytic tower 3 again.
The one aspect of the present embodiment, as shown in Figure 1, the preparation method of cordierite cerium-carrying ruthenium manganese three-dimensional catalyst includes
Following steps:
Step 1: by cordierite honeycomb substrates bubble 3 hours in 15% hydrochloric acid, after taking-up wash with distilled water, so
It is dried 3 hours in 105 DEG C of air dry ovens afterwards, it is spare after cooling；
Step 2: preparing solution metal concentration of element is 6% manganese nitrate solution, 19% solution of ruthenium trichloride, 20% nitric acid
Cerium solution, then these three solution are configured to mixed solution with volume ratio 1:1:6, and poly- the third of 6mg/L is added in mixed solution
Glycol monobutyl ether forms dipping solution as dispersing agent with 75 revs/min of mechanical stirring 30min；
Step 3: being impregnated 5 hours in 75 DEG C of water temperature by cordierite carrier in dipping solution；Then by cordierite
Carrier takes out, and dries at room temperature；
Step 4: cordierite carrier to be placed on to drying 1 hour in the blast heating case of 120 DEG C of conditions, with 3 DEG C/min heating
To 370 DEG C, constant temperature calcining 2 hours, 780 DEG C are warming up to 6 DEG C/min, constant temperature calcining 3 hours, violet was prepared in natural cooling
Green stone cerium-carrying ruthenium manganese three-dimensional catalyst.
The one aspect of the present embodiment, as shown in Figure 1, the water absorption rate of cordierite honeycomb substrates is 24.1%, loading is soft
Changing point is 1460 DEG C, linear expansion coefficient 2.22*10-6/℃
The one aspect of the present embodiment, as shown in Figure 1, being equipped with cordierite cerium-carrying ruthenium manganese three in VOCs catalytic tower 3
Catalyst is tieed up, cordierite cerium-carrying ruthenium manganese three-dimensional catalyst accounts for 85% volume of VOCs catalytic tower.
The one aspect of the present embodiment, as shown in Figure 1,65% gas passes through 4 row of exhaust outlet in VOCs catalytic tower 3
Out, 35% gas is discharged into VOCs catalytic tower 3 by circulating fan 6 again in VOCs catalytic tower 3.
The one aspect of the present embodiment, as shown in Figure 1, the first that volatile organic gases is 23.6 μ g/L by volumetric concentration
Benzene, the neon of 10.7 μ g/L, the methylene chloride of 1.1 μ g/L, the trichloro ethylene of 0.5 μ g/L, 0.2 μ g/L tri- chloroethene of 1,1,2-
Alkane, the 1,1,1- trichloroethanes of 0.5 μ g/L, the hexachlorobutadiene of 0.1 μ g/L, the chloroform of 0.4 μ g/L and 0.6 μ g/L chlorine
Benzene is constituted.
The present embodiment provides a kind of method for removing volatile organic gases, comprising the following steps:
Step 1: volatile organic gases enters gas heat exchanger 1 by ventilating fan 5, using Boiler Steam to volatilization
Property organic gas is preheated；
Step 2: volatile organic gases enters flue gas heater 2；
Step 3: subsequently entering VOCs catalytic tower 3, cordierite cerium-carrying ruthenium manganese is placed in VOCs catalytic tower 3
Three-dimensional catalyst；
Step 4: passing through 6 conduct of circulating fan by treated the volatile organic gases 25% of VOCs catalytic tower 3
Recyclegas is again introduced into VOCs catalytic tower, and 75% gas is discharged by exhaust outlet 4.
The one aspect of the present embodiment, as shown in Figure 1, gas heat exchanger 1 is panel-type air heat exchanger, volatilization in step 1
Property organic gas to enter the gas temperature before panel-type air heat exchanger be 21 DEG C, after panel-type air heat exchanger, volatility has
The temperature of machine gas is 145 DEG C.
The one aspect of the present embodiment, as shown in Figure 1, volatile organic gases temperature is heated to 255 DEG C in step 2.
The embodiment of the invention provides escaping gas by each gas concentration in gas before and after present invention process route
Data comparison table:
Table 1.
It should be clear from by the comparative analysis of the data of table 1, using technique of the invention in escaping gas
Every harmful gas concentration declines significant effect.
The present invention is unable to reach the problems such as efficiently effectively removing the purpose of VOCs, this hair for the administering method of existing VOCs
Bright the problem of significantly solving organic gas exhaust emission environment, has economical and environmentally friendly double effects and good society's effect
Benefit and environmental benefit.
The specific embodiment of the system and method for this practical removal volatile organic gases is described in detail above,
But it is merely an example, and the present invention is not restricted to particular embodiments described above.To those skilled in the art,
It is any that equivalent modifications and substitutions to the present invention are also within the scope of the present invention.Therefore, do not depart from it is of the invention
Made equal transformation and modification, all should be contained within the scope of the invention under spirit and scope.
Claims (10)
1. a kind of system for removing volatile organic gases characterized by comprising
It is changed for receiving volatile organic gases and Boiler Steam and carrying out preheating gas to the volatile organic gases
Hot device (1)；
For receiving the flue gas heater (2) that gas is discharged from the gas heat exchanger (1) and is heated to the gas；
For receiving the VOCs catalytic tower that gas is discharged from the flue gas heater (2) and is purified to the gas
(3)；And
The circulating fan being connect respectively with the air inlet of the VOCs catalytic tower (3) and the exhaust outlet (4) by pipeline
(6), a part of gas by the circulating fan (6) is discharged into VOCs catalysis again in the VOCs catalytic tower (3)
In reaction tower (3), rest part gas is discharged by the exhaust outlet (4) being set on the VOCs catalytic tower (3).
2. the system of removal volatile organic gases according to claim 1, which is characterized in that the organic gas of volatility
Body is discharged into the gas heat exchanger (1) by ventilating fan (5).
3. the system of removal volatile organic gases according to claim 1, which is characterized in that the VOCs catalysis reaction
Cordierite cerium-carrying ruthenium manganese three-dimensional catalyst is equipped in tower (3), the cordierite cerium-carrying ruthenium manganese three-dimensional catalyst accounts for described
VOCs catalytic tower (3) volume 60-85%.
4. the system of removal volatile organic gases according to claim 1, which is characterized in that the VOCs catalysis reaction
The gas of tower (3) interior 65-75% is discharged by the exhaust outlet (4), the gas of the interior 25-35% of the VOCs catalytic tower (3)
Body is discharged into the VOCs catalytic tower (3) by the circulating fan (6) again.
5. the system of removal volatile organic gases according to claim 1, which is characterized in that the cordierite cerium-carrying
The preparation method of ruthenium manganese three-dimensional catalyst the following steps are included:
Step 1: by cordierite honeycomb substrates bubble 3~4 hours in 12~17% hydrochloric acid, after taking-up wash with distilled water,
Then it is dried 3 hours in 105 DEG C of air dry ovens, it is spare after cooling；
Step 2: prepare solution metal concentration of element be 4~7% manganese nitrate solutions, 19~21% solution of ruthenium trichloride, 15~
23% cerous nitrate solution, then these three solution are configured to mixed solution with volume ratio 1:1:2~6, and 6 are added in mixed solution
The polypropylene glycol monobutyl ether of~15mg/L forms leaching as dispersing agent with 75~90 revs/min of 30~45min of mechanical stirring
Stain solution；
Step 3: being impregnated 5~6 hours in 75~85 DEG C of water temperature by the cordierite carrier in the dipping solution；So
The cordierite carrier is taken out afterwards, is dried at room temperature；
Step 4: the cordierite carrier to be placed on to drying 1 hour in the blast heating case of 120 DEG C of conditions, with 3~5 DEG C/min
It is warming up to 370 DEG C, constant temperature calcining 2~3 hours, is warming up to 780 DEG C with 6 DEG C/min, constant temperature calcining 2~5 hours, natural cooling,
The cordierite cerium-carrying ruthenium manganese three-dimensional catalyst is prepared.
6. the system of removal volatile organic gases according to claim 1, which is characterized in that the cordierite honeycomb
The water absorption rate of carrier is 22.5-25.1%, and load softening point is 1460 DEG C, and linear expansion coefficient is 2.12~2.34*10-6/℃。
7. the system of removal volatile organic gases according to claim 1, which is characterized in that the organic gas of volatility
Body by volumetric concentration be the toluene of 23.1~29.5 μ g/L, the neon of 10.2~17.7 μ g/L, 1.1~1.4 μ g/L dichloromethane
Alkane, the trichloro ethylene of 0.4~0.7 μ g/L, 0.2~0.4 μ g/L 1,1,2- trichloroethanes be, 0.4~0.7 μ g/L 1,1,
1- trichloroethanes, the hexachlorobutadiene of 0.1~0.3 μ g/L, the chloroform of 0.3~0.6 μ g/L and 0.5~0.9 μ g/L chlorobenzene
It constitutes.
8. a kind of method for removing volatile organic gases, which comprises the following steps:
Step 1: volatile organic gases enters gas heat exchanger (1) by ventilating fan (5), using Boiler Steam to described
Volatile organic gases is preheated；
Step 2: the volatile organic gases enters flue gas heater (2)；
Step 3: subsequently entering VOCs catalytic tower (3), cordierite cerium-carrying is placed in the VOCs catalytic tower (3)
Ruthenium manganese three-dimensional catalyst；
Step 4: by the VOCs catalytic tower (3) treated the volatile organic gases 25~35% by following
Ring blower (6) is again introduced into VOCs catalytic tower as recyclegas, and 65~75% gas is discharged by exhaust outlet (4).
9. the system of removal volatile organic gases according to claim 8, which is characterized in that gas described in step 1
Heat exchanger (1) is panel-type air heat exchanger, and the volatile organic gases enters the gas temperature before formula gas heat exchanger described in plate
Degree is 15~39 DEG C, and after the panel-type air heat exchanger, the temperature of the volatile organic gases is 120~150 DEG C.
10. the system of removal volatile organic gases according to claim 8, which is characterized in that waved described in step 2
Hair property organic gas temperature is heated to 230~270 DEG C.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548391A (en) * | 2019-07-17 | 2019-12-10 | 上海第二工业大学 | Catalytic oxidation system for treating benzene organic matters by manganese-based catalyst prepared based on waste ternary electrode material |
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| CN110548391A (en) * | 2019-07-17 | 2019-12-10 | 上海第二工业大学 | Catalytic oxidation system for treating benzene organic matters by manganese-based catalyst prepared based on waste ternary electrode material |
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Inventor after: Weng Yanbo Inventor after: Wang Shuxing Inventor after: Li Xiaoping Inventor after: Zhang Shihao Inventor after: Chen Wei Inventor after: Lu Le Inventor before: Weng Yanbo Inventor before: Li Xiaoping Inventor before: Zhang Shihao Inventor before: Chen Wei Inventor before: Lu Le |
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Application publication date: 20190329 |