CN105983295A - Low-temperature plasma synergistic adsorption type industrial waste gas treatment method - Google Patents
Low-temperature plasma synergistic adsorption type industrial waste gas treatment method Download PDFInfo
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- CN105983295A CN105983295A CN201610029054.XA CN201610029054A CN105983295A CN 105983295 A CN105983295 A CN 105983295A CN 201610029054 A CN201610029054 A CN 201610029054A CN 105983295 A CN105983295 A CN 105983295A
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- waste gas
- industrial waste
- temperature plasma
- activated carbon
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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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
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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
-
- 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
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
Abstract
The invention provides a low-temperature plasma synergistic adsorption type industrial waste gas treatment method. The method includes: adopting at least two groups of activated carbon adsorption units and a group of low-density low-temperature plasma units to treat waste gas; alternately using the two groups of the activated carbon adsorption units; when detecting that one of the two groups of the activated carbon adsorption units is saturated, switching to the other group of the activated carbon adsorption units to continue treatment; leading in hot air to perform thermal desorption on the saturated activated carbon; leading generated thermal desorption waste gas into a high-density low-temperature plasma unit to realize purification; finally two branches of treated waste gas are converged at a main discharging pipeline to realize standardized discharging. The low-temperature plasma synergistic adsorption type industrial waste gas treatment method is especially suitable for purification of industrial waste gas high in flow, low in pollutant concentration, high in fluctuation and complex in component.
Description
Technical field
The present invention relates to exhaust-gas treatment field, be specifically related to a kind of low-temperature plasma synergistic adsorption treatment industrial waste gas method.
Background technology
Can produce large quantity of exhaust gas in industrial processes, these are without the exhaust emission air of purified treatment and surrounding enviroment, human body cause harm greatly, it has also become one of main source that current atmospheric pollutes.Low temperature plasma administers waste gas technology, it it is exactly the pollutant effect in high energy electron, free radical isoreactivity particle and the waste gas utilizing plasma discharge to produce, make contaminant molecule decompose within the extremely short time, and occur follow-up various reactions to reach the purpose of degradation of contaminant.Compare for other pollutant abatement technology, there is the features such as handling process is short, floor space is little, applied widely.
Although lower-temperature plasma industrial waste gas treatment (including foul gas) effect is obvious, concise in technology, advantage is notable, but, mostly have due to industrial waste gas that flow is big, pollutant levels are low and the feature such as fluctuation relatively big, complicated components, simple application plasma treatment technique also exists that treatment effeciency is low, pollutant removal not thoroughly and be easily caused the problems such as the discharge of ozone exceeds standard.
Summary of the invention
The deficiency existed for prior art, the present invention proposes a kind of low-temperature plasma synergistic adsorption treatment industrial waste gas method, both can solve the purpose that in waste gas, organic pollution is efficiently removed, and can effectively control again the emission problem of ozone, thus meet the strictest environmental emission standard requirement.Described processing system is the processing system being arranged between air exhauster and industrial waste gas acquisition port.
In order to solve above-mentioned technical problem, the technical method of the present invention is as follows:
nullA kind of low-temperature plasma synergistic adsorption treatment industrial waste gas method，It is characterized in that: described industrial waste gas pumps into processing system by air exhauster，Described processing system includes at least two group parallel connection activated carbon adsorption unit and low-density low-temperature plasma body unit，Often group activated carbon adsorption unit controls to be connected serially to low-density low-temperature plasma body unit respectively by control valve and forms at least two industrial waste gas low-temperature plasma synergistic adsorption treatment branch roads，Realize the adsorption treatment to industrial waste gas，Also include hot air source and high density low-temperature plasma body unit，Described often group activated carbon adsorption unit controls to be respectively communicated with hot air source by control valve and high density low-temperature plasma body unit forms corresponding saturated activity charcoal hot blast De contamination and processes branch road，The hot blast De contamination realizing the industrial waste gas to activated carbon adsorption unit absorption processes，Promote the recycling of activated carbon adsorption unit；Described industrial waste gas low-temperature plasma synergistic adsorption treatment branch road and corresponding saturated activity charcoal hot blast De contamination process branch road control switching alternation by control valve and realize the chimney discharge commonly through air exhauster and connection air exhauster of the process of industrial waste gas, its purifying industrial waste gases processed and thermal desorption waste gas.
A kind of energy density that what described low-density low-temperature plasma body unit produced is is relatively low, weak discharge plasma；What high density low-temperature plasma body unit produced is a kind of energy density plasma discharged higher, relatively strong.
The industrial waste gas that described activated carbon hot blast De contamination process branch road processes is when entering high-density plasma unit, and cold air is in combination carries out cooling process to need to coordinate air-cooler to introduce.
When starting air exhauster and industrial waste gas being imported processing system, control through control valve, article one, the purified treatment realized industrial waste gas opened by industrial waste gas low-temperature plasma synergistic adsorption treatment branch road industrial waste gas, and discharged by the chimney of air exhauster and connection air exhauster, when detecting that in this group activated carbon adsorption unit, activated carbon adsorption is saturated, it is switched to another industrial waste gas low-temperature plasma synergistic adsorption treatment branch road by control valve and continues with；Introduce hot air source by control valve simultaneously and saturated activated carbon is carried out thermal desorption, thus produce the thermal desorption waste gas that flow is low and stable, pollutant levels are high and fluctuates little, thermal desorption waste gas controls to import high density low-temperature plasma body unit by control valve, completes the further process of the De contamination to saturated activity charcoal and thermal desorption waste gas in saturated activity charcoal hot blast De contamination processes branch road；Waste gas and the above-mentioned purifying industrial waste gases of the thermal desorption after Bei Chuli are converged by air exhauster, and by connecting the smoke stack emission of ventilation blower.
The beneficial effects of the present invention is:
Energy utilization efficiency of the present invention is high, and pollutants removal rate is high, and can effectively reduce the discharge of ozone, is especially suitable for the purified treatment of the industrial waste gas that flow is big, contaminant component is complicated, pollutant levels are low and fluctuation is bigger.
Accompanying drawing explanation
Fig. 1 is one low-temperature plasma synergistic heat-soak treatment industrial waste gas method flow schematic diagram of the present invention.
Wherein: 1, industrial waste gas；2, hot blast；3, control valve one；4, control valve two；5, activated carbon adsorption unit one；6, control valve three；7, control valve four；8, control valve five；9, control valve six；10, activated carbon adsorption unit two；11, control valve seven；12, control valve eight；13, air-cooler；14, low density plasmas unit；15, high-density plasma unit；16, air exhauster；17, chimney.
Detailed description of the invention
nullA kind of low-temperature plasma synergistic adsorption treatment industrial waste gas method，It is characterized in that: described industrial waste gas pumps into processing system by air exhauster，Described processing system includes at least two group parallel connection activated carbon adsorption unit and low-density low-temperature plasma body unit，Often group activated carbon adsorption unit controls to be connected serially to low-density low-temperature plasma body unit respectively by control valve and forms at least two industrial waste gas low-temperature plasma synergistic adsorption treatment branch roads，Realize the adsorption treatment to industrial waste gas，Also include hot air source and high density low-temperature plasma body unit，Described often group activated carbon adsorption unit controls to be respectively communicated with hot air source by control valve and high density low-temperature plasma body unit forms corresponding saturated activity charcoal hot blast De contamination and processes branch road，The hot blast De contamination realizing the industrial waste gas to activated carbon adsorption unit absorption processes，Promote the recycling of activated carbon adsorption unit；Described industrial waste gas low-temperature plasma synergistic adsorption treatment branch road and corresponding saturated activity charcoal hot blast De contamination process branch road control switching alternation by control valve and realize the chimney discharge commonly through air exhauster and connection air exhauster of the process of industrial waste gas, its purifying industrial waste gases processed and thermal desorption waste gas.
A kind of energy density that what described low-density low-temperature plasma body unit produced is is relatively low, weak discharge plasma；What high density low-temperature plasma body unit produced is a kind of energy density plasma discharged higher, relatively strong.
The industrial waste gas that described activated carbon hot blast De contamination process branch road processes is when entering high-density plasma unit, and cold air is in combination carries out cooling process to need to coordinate air-cooler to introduce.
As it is shown in figure 1, as a example by two groups of parallel connection activated carbon adsorption unit, the workflow of the present invention is described.Open air exhauster 16, open control valve 24 and control valve 36；After industrial waste gas 1 after preprocessed (as removed particulate matter, moisture etc.) enters activated carbon adsorption unit 1 process；Enter the further deep purifying of low density plasmas unit 14 to process；Discharged through chimney 17 by air exhauster 16；When the activated carbon adsorption detecting activated carbon adsorption unit 1 reaches saturated；Closing control valve 24 and control valve 36；Opening controlling valve 58 and control valve 7 11；Industrial waste gas 1 processes through activated carbon adsorption unit 2 10 and low density plasmas unit 14；Simultaneously；Opening controlling valve 1 connects hot air source with control valve 47；Hot blast is introduced into activated carbon adsorption unit 1 and carries out thermal desorption to the most adsorbing saturated activated carbon；And control concentration and flow well according to technological requirement；Control open cold blower fan 13 according to EGT simultaneously and introduce cooling air；The waste gas that so high concentration, low discharge are desorbed is through high-density plasma cell processing；Gas after process converges with the gas of above-mentioned low density plasmas cell processing, is discharged through chimney 17 by air exhauster 16；After the activated carbon of activated carbon adsorption unit 1 has been desorbed；Closing control valve 1 and control valve 47, air-cooler 13；When in activated carbon adsorption unit 2 10, activated carbon adsorption reaches saturated；Closing control valve 58 and control valve 7 11；Open control valve 24 and valve 36 processed；Industrial waste gas 1 enters activated carbon adsorption unit 1 and low density plasmas unit 14 processes；Opening controlling valve 69 and control valve 8 12 simultaneously；Thermal desorption is carried out to activated carbon adsorption unit 2 10 has been adsorbed saturated activated carbon；Waste gas introduces the cooling of air by air-cooler 13；Import high-density plasma unit 15；After process, the exhaust gas merger with low density plasmas cell processing discharges through chimney 17；This process is through controlling circulation repeatedly；Realize the qualified discharge of industrial waste gas.
It should be noted that；Above content is only in order to illustrate technical scheme；Rather than limiting the scope of the invention；Simple modification that technical scheme is carried out by those of ordinary skill in the art or equivalent；Spirit and scope all without departing from technical solution of the present invention.
Claims (3)
- null1. a low-temperature plasma synergistic adsorption treatment industrial waste gas method，It is characterized in that: described industrial waste gas pumps into processing system by air exhauster，Described processing system includes at least two group parallel connection activated carbon adsorption unit and low-density low-temperature plasma body unit，Often group activated carbon adsorption unit controls to be connected serially to low-density low-temperature plasma body unit respectively by control valve and forms at least two industrial waste gas low-temperature plasma synergistic adsorption treatment branch roads，Realize the adsorption treatment to industrial waste gas，Also include hot air source and high density low-temperature plasma body unit，Described often group activated carbon adsorption unit controls to be respectively communicated with hot air source by control valve and high density low-temperature plasma body unit forms corresponding saturated activity charcoal hot blast De contamination and processes branch road，The hot blast De contamination realizing the industrial waste gas to activated carbon adsorption unit absorption processes，Promote the recycling of activated carbon adsorption unit；Described industrial waste gas low-temperature plasma synergistic adsorption treatment branch road and corresponding saturated activity charcoal hot blast De contamination process branch road control switching alternation by control valve and realize the chimney discharge commonly through air exhauster and connection air exhauster of the process of industrial waste gas, its purifying industrial waste gases processed and thermal desorption waste gas.
- A kind of low-temperature plasma synergistic adsorption treatment industrial waste gas method the most according to claim 1, it is characterized in that: the industrial waste gas that described activated carbon hot blast De contamination process branch road processes is when entering high-density plasma unit, and cold air is in combination carries out cooling process to need to coordinate air-cooler to introduce.
- A kind of low-temperature plasma synergistic adsorption treatment industrial waste gas method the most according to claim 1 and 2, it is characterised in that: a kind of energy density that what described low-density low-temperature plasma body unit produced is is relatively low, weak discharge plasma；What described high density low-temperature plasma body unit produced is a kind of energy density plasma discharged higher, relatively strong.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492605A (en) * | 2016-11-22 | 2017-03-15 | 徐亚军 | A kind of multi-stage combination, the Treatment process of circular treatment volatile organic compoundses |
| CN108114570A (en) * | 2017-04-12 | 2018-06-05 | 南京大学 | One kind contains CS for handling2And H2The method of S mixed pollutants exhaust gas |
| CN113267029A (en) * | 2021-05-19 | 2021-08-17 | 江西富鸿金属有限公司 | Anti-oxidation drying device for tinned wire |
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| JP2005230627A (en) * | 2004-02-17 | 2005-09-02 | National Institute Of Advanced Industrial & Technology | Method for purifying exhaust gas using low-temperature plasma and its purifying apparatus |
| CN2817959Y (en) * | 2005-08-11 | 2006-09-20 | 浙江大学 | Organic waste gas purifier |
| CN101785951A (en) * | 2010-02-25 | 2010-07-28 | 宁波大学 | Purification method for organic waste gas |
| CN204247047U (en) * | 2014-09-17 | 2015-04-08 | 厦门佰欧科技工程有限公司 | Organic exhaust gas adsorption concentrates catalytic combustion and low-temperature plasma coupling purification system |
| CN104941340A (en) * | 2015-06-16 | 2015-09-30 | 武汉旭日华科技发展有限公司 | Device and treatment method for treating organic waste gas |
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2016
- 2016-01-15 CN CN201610029054.XA patent/CN105983295A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005230627A (en) * | 2004-02-17 | 2005-09-02 | National Institute Of Advanced Industrial & Technology | Method for purifying exhaust gas using low-temperature plasma and its purifying apparatus |
| CN2817959Y (en) * | 2005-08-11 | 2006-09-20 | 浙江大学 | Organic waste gas purifier |
| CN101785951A (en) * | 2010-02-25 | 2010-07-28 | 宁波大学 | Purification method for organic waste gas |
| CN204247047U (en) * | 2014-09-17 | 2015-04-08 | 厦门佰欧科技工程有限公司 | Organic exhaust gas adsorption concentrates catalytic combustion and low-temperature plasma coupling purification system |
| CN104941340A (en) * | 2015-06-16 | 2015-09-30 | 武汉旭日华科技发展有限公司 | Device and treatment method for treating organic waste gas |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492605A (en) * | 2016-11-22 | 2017-03-15 | 徐亚军 | A kind of multi-stage combination, the Treatment process of circular treatment volatile organic compoundses |
| CN108114570A (en) * | 2017-04-12 | 2018-06-05 | 南京大学 | One kind contains CS for handling2And H2The method of S mixed pollutants exhaust gas |
| CN108114570B (en) * | 2017-04-12 | 2020-01-31 | 南京大学 | methods for treating plants containing CS2And H2S mixed pollutant waste gas method |
| CN113267029A (en) * | 2021-05-19 | 2021-08-17 | 江西富鸿金属有限公司 | Anti-oxidation drying device for tinned wire |
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