CN204247047U - Organic exhaust gas adsorption concentrates catalytic combustion and low-temperature plasma coupling purification system - Google Patents
Organic exhaust gas adsorption concentrates catalytic combustion and low-temperature plasma coupling purification system Download PDFInfo
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- CN204247047U CN204247047U CN201420533821.7U CN201420533821U CN204247047U CN 204247047 U CN204247047 U CN 204247047U CN 201420533821 U CN201420533821 U CN 201420533821U CN 204247047 U CN204247047 U CN 204247047U
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- catalytic combustion
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- temperature plasma
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 63
- 238000007084 catalytic combustion reaction Methods 0.000 title claims abstract description 49
- 238000000746 purification Methods 0.000 title claims abstract description 14
- 239000012141 concentrate Substances 0.000 title claims abstract description 13
- 230000008878 coupling Effects 0.000 title claims abstract description 11
- 238000010168 coupling process Methods 0.000 title claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 106
- 239000007789 gas Substances 0.000 claims abstract description 35
- 238000003795 desorption Methods 0.000 claims abstract description 20
- 239000002912 waste gas Substances 0.000 claims abstract description 14
- 230000008676 import Effects 0.000 claims abstract description 11
- 230000008901 benefit Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 21
- 230000008569 process Effects 0.000 abstract description 18
- 229910052799 carbon Inorganic materials 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 description 10
- 239000003463 adsorbent Substances 0.000 description 8
- 239000003610 charcoal Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005281 excited state Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 241001466460 Alveolata Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
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- 230000000977 initiatory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- 230000002441 reversible effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of organic exhaust gas adsorption and concentrate catalytic combustion and low-temperature plasma coupling purification system, comprise pretreatment unit, activated carbon adsorption bed, catalytic combustion bed, low-temperature plasma purifying device; Described pretreatment unit connects the exhaust gas inlet of activated carbon adsorption bed by pipeline, and the waste gas outlet of activated carbon adsorption bed connects the import of low-temperature plasma purifying device by pipeline, the outlet of low-temperature plasma purifying device connects chimney by pipeline; The desorption of described activated carbon adsorption bed connects the import of catalytic combustion bed by pipeline, the outlet of catalytic combustion bed connects hot air intake and the chimney of activated carbon adsorption bed by pipeline.Because the utility model arranges activated carbon adsorption bed and low-temperature plasma purifying device simultaneously, adopt low-temperature plasma as advanced treating, can Billy with the whole shorter residence time 1/5 of simple organic exhaust gas active-carbon Adsorption Concentration Production by Catalytic Combustion Process, reduce the use amount of active carbon and good purification.
Description
Technical field
The utility model relates to a kind of air cleaning facility, particularly relates to a kind of organic exhaust gas adsorption and concentrates catalytic combustion and low-temperature plasma coupling purification system.
Background technology
Organic exhaust gas of a great variety, composition is complicated, concentration is various, represent with volatile organic matter VOCs, mainly contain the material such as benzene,toluene,xylene, NMHC, its improvement has larger difficulty.At present, usually adopt charcoal absorption to concentrate Production by Catalytic Combustion Process, especially atm number low concentration gas, but adopt this method to have following problem:
(1) up to standard in order to process, the activated carbon adsorption bed design time of staying is longer, and active carbon consumption is large.
(2) for the organic exhaust gas of atm number middle and high concentration, active carbon easily adsorbs saturated, need often change, and the active carbon after replacing need deliver to the Solid Waste Treatment company of relevant qualification, has the higher and shortcomings such as inconvenience of operation expense.
(3) because regenerating active carbon is not too thorough, along with operation hours extends, charcoal absorption performance declines gradually, and organic exhaust gas does not often have on-line monitoring at present, as only with engineering experience periodic replacement active carbon, easily produces discharge beyond standards problem.
Recently, low-temperature plasma, as emerging VOCs treatment technology, has that operating cost is low, the feature of convenient operating maintenance, but this method is applicable to low-concentration organic exhaust gas process, poor for middle/high concentration organic waste gas treatment effect.How charcoal absorption being concentrated Production by Catalytic Combustion Process and low-temperature plasma organically combines, is industry dealer urgent problem.
Utility model content
The purpose of this utility model is to provide that a kind of good purification, operating cost are low, the organic exhaust gas adsorption of convenient operating maintenance concentrates catalytic combustion and low-temperature plasma coupling purification system.
For achieving the above object, technical solution of the present utility model is:
The utility model is that a kind of organic exhaust gas adsorption concentrates catalytic combustion and low-temperature plasma coupling purification system, comprises pretreatment unit, activated carbon adsorption bed, catalytic combustion bed, low-temperature plasma purifying device; Described pretreatment unit connects the exhaust gas inlet of activated carbon adsorption bed by pipeline, and the waste gas outlet of activated carbon adsorption bed connects the import of low-temperature plasma purifying device by pipeline, the outlet of low-temperature plasma purifying device connects chimney by pipeline; The desorption of described activated carbon adsorption bed connects the import of catalytic combustion bed by pipeline, the outlet of catalytic combustion bed connects hot air intake and the chimney of activated carbon adsorption bed by pipeline.
Described activated carbon adsorption bed has two.
The utility model also comprises desorption blower fan, mends air-cooler, main air blower; Described desorption assembling is on the pipeline between the desorption and the import of catalytic combustion bed of activated carbon adsorption bed; On the other pipeline be connected between the outlet of catalytic combustion bed and the hot air intake of activated carbon adsorption bed of described benefit air-cooler; Described main air blower is arranged on the pipeline between the outlet of low-temperature plasma purifying device and chimney.
Pipeline between the outlet and the hot air intake of activated carbon adsorption bed of catalytic combustion bed is provided with fire insulation valve and air-valve.
After adopting such scheme, because the utility model is primarily of pretreatment unit, activated carbon adsorption bed, catalytic combustion bed, low-temperature plasma purifying device composition, activated carbon adsorption bed and low-temperature plasma purifying device are arranged in the utility model simultaneously, have the following advantages:
(1) adopt low-temperature plasma as advanced treating, can Billy with the whole shorter residence time 1/5 of simple organic exhaust gas active-carbon Adsorption Concentration Production by Catalytic Combustion Process, reduce the use amount of active carbon and good purification.
(2) utilize low-temperature plasma equipment to run easy, the feature of Maintenance free, makes up the deficiency that charcoal absorption concentrates Production by Catalytic Combustion Process, can extend the replacement cycle of active carbon.
(3) no matter in initial operating stage or intermitten service, do not affect treatment effect, capacity of resisting impact load is strong.Solve after extending running time, charcoal absorption performance declines and causes discharge beyond standards problem.In addition, along with discharge standard is more and more tighter, employing the utility model also can be up to standard, without the need to carrying out upgrading.
(4) because low-temperature plasma directly cannot process atm number middle and high concentration gas, charcoal absorption is concentrated catalytic combustion system as high-efficiency pretreatment by the utility model, enter low-temperature plasma device again after reducing organic exhaust gas concentration, give full play to the advantage that low-temperature plasma operating cost is low, easy to maintenance.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, the utility model is that a kind of organic exhaust gas adsorption concentrates catalytic combustion and low-temperature plasma coupling purification system, comprises pretreatment unit 1, two activated carbon adsorption beds 2, catalytic combustion bed 3, low-temperature plasma purifying device 4, desorption blower fan 5, mends air-cooler 6, main air blower 7, chimney 8.
Described pretreatment unit 1 connects the exhaust gas inlet 21 of two activated carbon adsorption beds 2 respectively by pipeline, the waste gas outlet 22 of two activated carbon adsorption beds 2 all connects the import of low-temperature plasma purifying device 4 by pipeline, the outlet of low-temperature plasma purifying device 4 connects chimney 8 by pipeline.The desorption 23 of described activated carbon adsorption bed 2 connects the import of catalytic combustion bed 3 by pipeline.The outlet conduit of described catalytic combustion bed 3 is divided into two-way, connects hot air intake 24 and the chimney 8 of two activated carbon adsorption beds 2 respectively.
Described desorption blower fan 5 is arranged on the pipeline between the desorption 23 of activated carbon adsorption bed 2 and the import of catalytic combustion bed 3.On the other pipeline be connected between the outlet of catalytic combustion bed 3 and the hot air intake 24 of activated carbon adsorption bed 2 of described benefit air-cooler 6.Described main air blower 7 is arranged on the pipeline between the outlet of low-temperature plasma purifying device 4 and chimney 8.
Described pretreatment unit 1 and the connecting pipe of two activated carbon adsorption bed 2 exhaust gas inlet 21 are respectively equipped with air-valve 91,92; The waste gas outlet 22 of two activated carbon adsorption beds 2 and the connecting pipe of low-temperature plasma purifying device 4 are respectively equipped with air-valve 93,94; Pipeline between the desorption 23 of described activated carbon adsorption bed 2 and catalytic combustion bed 3 is respectively equipped with air-valve 95,96.Pipeline between described catalytic combustion bed 3 and chimney 8 is provided with air-valve 97.Pipeline between the outlet and the hot air intake 24 of two activated carbon adsorption beds 2 of catalytic combustion bed 3 is all provided with fire insulation valve 101,102 and air-valve 98,99.
technological process of the present utility model
(1) pretreatment
Because containing a certain amount of trifle in the world in waste gas, if directly enter adsorbent equipment without removal, very easily cause the blockage of the micro orifice of sorbing material (Alveolate activated carbon capable), have a strong impact on adsorption effect, increase SR, affect ventilation effect and even cause potential safety hazard to system, therefore this technique arranges high-efficiency fiber filter as pretreatment unit 1 before adsorbent bed, utilize the exquisite structure of filter self efficiently to remove the materials such as the dust in waste gas, thus guarantee effectively to be tackled filtration by trifle in the world contained in the waste gas entered entering fixed adsorption bed.
(2) charcoal absorption
Remove the waste gas of trifle in the world, through rational cloth wind, make it uniformly across the flow section of the active carbon layer in fixed adsorption bed, in certain time of staying, because the effect of activated carbon surface and the intermolecular attractive interaction of organic exhaust gas produces physical absorption (adsorbing also known as Van der Waals), be characterized in that 1. adsorbate (organic exhaust gas) and adsorbent (active carbon) do not react mutually, 2. process is carried out comparatively fast, 3. adsorbent nature does not change in adsorption process, and 4. adsorption process is reversible; Thus the organic component in waste gas is adsorbed on the surface area of active carbon, thus waste gas is purified.The utility model establishes two activated carbon adsorption beds 2, and namely waste gas is from an adsorbent bed process, and another is in desorption and regeneration stage or stand-by phase, thus adsorption process can be carried out continuously, does not affect Workshop Production.
(3) low-temperature plasma
Waste gas after charcoal absorption process, enters low-temperature plasma purifying device 4 advanced treating, delivers to chimney qualified discharge through main air blower.
Its catharsis mechanism of low-temperature plasma purifying device 4 is that the moment high energy that high-frequency discharge produces enough opens the chemical energy of a little pernicious gas molecule, makes it to be decomposed into simple substance atom or harmless molecule in the process producing plasma; Comprise a large amount of high energy electrons in plasma, negative ions, excited state particle and the free radical with strong oxidizing property, its a little active particle and part foul smell molecular collision combine, and under electric field action, make foul smell molecule be in excited state.When foul smell molecule obtain energy be greater than its molecular bond energy in conjunction with time, the chemical bond rupture of foul smell molecule, Direct Resolution becomes simple substance atomic building to obtain innocuous gas molecule.A large amount of OH, HO2, the O isoreactivity base simultaneously produced and the extremely strong O3 of oxidisability, with pernicious gas molecule generation chemical reaction, finally generate harmless products.
(4) desorption-catalytic combustion
The activated carbon adsorption bed state of reaching capacity should stop absorption, detachment status is entered by valve transfer, process is as follows: start desorption blower fan 5, open respective valves and electric heater, preheating is carried out to the catalyst of catalytic combustion bed 3 inside, produce a certain amount of hot-air simultaneously, when bed temperature reaches setting value, hot-air is sent into adsorbent bed, active carbon goes out the organic gas of high concentration by thermal desorption, catalytic combustion bed 3 is introduced through desorption blower fan, flameless catalytic combustion is carried out in a lower temperature under the effect of noble metal catalyst, organic principle is converted into nontoxic, harmless CO2 and H2O, discharge a large amount of heats simultaneously, the heat exchanger in catalytic combustion bed is utilized partial heat to be back to the desorption and regeneration of active carbon in adsorbent bed, thus greatly reduce energy consumption, the initiation temperature needed for catalytic combustion can be maintained, waste gas burning process is made substantially not need additional energy consumption (electric energy),
When active carbon desorption concentrated exhaust gas concentration is out higher, reaction temperature is higher, automatically opens and mend new air-valve 100, supplement fresh cold air to reduce temperature, to guarantee catalytic combustion bed 3 safety, Effec-tive Function.
When the temperature in activated carbon adsorption bed 2 is higher than setting value, mending air-cooler 6 can start automatically, supplements cold wind, reduces temperature in adsorbent bed, guarantee safe operation.
When catalytic combustion bed 3 produce high-temperature gas (being normally about 150 DEG C) enter activated carbon adsorption bed 2 regenerate time, if when gas temperature is higher than 280 DEG C, in fire insulation valve 101,102, safety plate can melt, fire insulation valve 101,102 can be closed automatically immediately, stop high-temperature gas to enter activated carbon adsorption bed, guarantee safe operation.
Emphasis of the present utility model is just: set up low-temperature plasma purifying device.
The above, be only the utility model preferred embodiment, the quantity of activated carbon adsorption bed can need and determine, therefore the scope of the utility model enforcement can not be limited with this, namely the equivalence change done according to the utility model claim and description with modify, all should still belong in scope that the utility model patent contains.
Claims (4)
1. organic exhaust gas adsorption concentrates catalytic combustion and a low-temperature plasma coupling purification system, it is characterized in that: comprise pretreatment unit, activated carbon adsorption bed, catalytic combustion bed, low-temperature plasma purifying device; Described pretreatment unit connects the exhaust gas inlet of activated carbon adsorption bed by pipeline, and the waste gas outlet of activated carbon adsorption bed connects the import of low-temperature plasma purifying device by pipeline, the outlet of low-temperature plasma purifying device connects chimney by pipeline; The desorption of described activated carbon adsorption bed connects the import of catalytic combustion bed by pipeline, the outlet of catalytic combustion bed connects hot air intake and the chimney of activated carbon adsorption bed by pipeline.
2. organic exhaust gas adsorption according to claim 1 concentrates catalytic combustion and low-temperature plasma coupling purification system, it is characterized in that: described activated carbon adsorption bed has two.
3. organic exhaust gas adsorption according to claim 1 concentrates catalytic combustion and low-temperature plasma coupling purification system, it is characterized in that: also comprise desorption blower fan, mend air-cooler, main air blower; Described desorption assembling is on the pipeline between the desorption and the import of catalytic combustion bed of activated carbon adsorption bed; On the other pipeline be connected between the outlet of catalytic combustion bed and the hot air intake of activated carbon adsorption bed of described benefit air-cooler; Described main air blower is arranged on the pipeline between the outlet of low-temperature plasma purifying device and chimney.
4. organic exhaust gas adsorption according to claim 1 concentrates catalytic combustion and low-temperature plasma coupling purification system, it is characterized in that: on the pipeline between the outlet and the hot air intake of activated carbon adsorption bed of catalytic combustion bed, be provided with fire insulation valve and air-valve.
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| CN201420533821.7U CN204247047U (en) | 2014-09-17 | 2014-09-17 | Organic exhaust gas adsorption concentrates catalytic combustion and low-temperature plasma coupling purification system |
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| CN201420533821.7U CN204247047U (en) | 2014-09-17 | 2014-09-17 | Organic exhaust gas adsorption concentrates catalytic combustion and low-temperature plasma coupling purification system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413387A (en) * | 2015-11-12 | 2016-03-23 | 宁波大学 | VOCs tail gas adsorption-catalytic combustion treatment system |
| CN105983295A (en) * | 2016-01-15 | 2016-10-05 | 中国科学院等离子体物理研究所 | Low-temperature plasma synergistic adsorption type industrial waste gas treatment method |
| WO2017133025A1 (en) * | 2016-02-02 | 2017-08-10 | 四维尔丸井(广州)汽车零部件有限公司 | Waste gas treatment system |
| CN107138019A (en) * | 2017-07-12 | 2017-09-08 | 云汇环保科技南通有限公司 | A kind of volatile organic compounds purifier |
| CN109550356A (en) * | 2018-12-21 | 2019-04-02 | 江苏博斯纳环境科技有限公司 | Plastics organic waste gas concentrating processing system |
| CN110038427A (en) * | 2019-04-16 | 2019-07-23 | 江苏国创环保科技有限公司 | A kind of device and method for the organic exhaust gas that processing active carbon desorption generates |
| CN110327750A (en) * | 2019-07-29 | 2019-10-15 | 中科新天地（合肥）环保科技有限公司 | Adsorption Concentration catalysis burning cooperating with low-temperature plasma waste gas pollution control and treatment system |
| CN111467885A (en) * | 2020-03-09 | 2020-07-31 | 浙江工业大学 | VOCs adsorption-plasma catalytic regeneration device, treatment system and process |
| CN111780141A (en) * | 2020-08-17 | 2020-10-16 | 福润得复合新材料有限公司 | Treatment process and device for VOCS waste gas in steel pipe anticorrosive coating production |
| CN111888886A (en) * | 2020-08-27 | 2020-11-06 | 银川百泓新材料科技有限公司 | Method and device for treating waste gas generated in production of low-concentration permanent violet |
| CN114699868A (en) * | 2022-05-25 | 2022-07-05 | 河南恒赛尔汽配有限公司 | Industrial waste gas multistage treatment process |
-
2014
- 2014-09-17 CN CN201420533821.7U patent/CN204247047U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413387A (en) * | 2015-11-12 | 2016-03-23 | 宁波大学 | VOCs tail gas adsorption-catalytic combustion treatment system |
| CN105413387B (en) * | 2015-11-12 | 2018-07-10 | 宁波大学 | A kind of VOCs tail gas adsorptions-catalytic-combustion processing system |
| CN105983295A (en) * | 2016-01-15 | 2016-10-05 | 中国科学院等离子体物理研究所 | Low-temperature plasma synergistic adsorption type industrial waste gas treatment method |
| WO2017133025A1 (en) * | 2016-02-02 | 2017-08-10 | 四维尔丸井(广州)汽车零部件有限公司 | Waste gas treatment system |
| CN107138019A (en) * | 2017-07-12 | 2017-09-08 | 云汇环保科技南通有限公司 | A kind of volatile organic compounds purifier |
| CN109550356A (en) * | 2018-12-21 | 2019-04-02 | 江苏博斯纳环境科技有限公司 | Plastics organic waste gas concentrating processing system |
| CN110038427A (en) * | 2019-04-16 | 2019-07-23 | 江苏国创环保科技有限公司 | A kind of device and method for the organic exhaust gas that processing active carbon desorption generates |
| CN110327750A (en) * | 2019-07-29 | 2019-10-15 | 中科新天地（合肥）环保科技有限公司 | Adsorption Concentration catalysis burning cooperating with low-temperature plasma waste gas pollution control and treatment system |
| CN111467885A (en) * | 2020-03-09 | 2020-07-31 | 浙江工业大学 | VOCs adsorption-plasma catalytic regeneration device, treatment system and process |
| CN111780141A (en) * | 2020-08-17 | 2020-10-16 | 福润得复合新材料有限公司 | Treatment process and device for VOCS waste gas in steel pipe anticorrosive coating production |
| CN111888886A (en) * | 2020-08-27 | 2020-11-06 | 银川百泓新材料科技有限公司 | Method and device for treating waste gas generated in production of low-concentration permanent violet |
| CN114699868A (en) * | 2022-05-25 | 2022-07-05 | 河南恒赛尔汽配有限公司 | Industrial waste gas multistage treatment process |
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