CN105617826A - Low-temperature plasma oil gas ultra-clean emission treatment process and device - Google Patents
Low-temperature plasma oil gas ultra-clean emission treatment process and device Download PDFInfo
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- CN105617826A CN105617826A CN201610095009.4A CN201610095009A CN105617826A CN 105617826 A CN105617826 A CN 105617826A CN 201610095009 A CN201610095009 A CN 201610095009A CN 105617826 A CN105617826 A CN 105617826A
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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
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- 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
- B01D53/002—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 condensation
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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
- B01D53/14—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 absorption
- B01D53/1406—Multiple stage absorption
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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
- B01D53/14—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 absorption
- B01D53/1487—Removing organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention provides a low-temperature plasma oil gas ultra-clean emission treatment process and device and belongs to the technical field of polluted air purification, in particular to a method for recycling oil gas volatile effluent gas in the places such as an oil storage and a gas station.The device comprises an oil gas inlet, an induced draft fan, a microporous membrane deduster, a first-level spray tower, a condenser, an adsorption tank, a nitrogen source diluter, a shut-down control system, a low-temperature plasma purification chamber, a second-level spray tower, a water storage tank, an immersible pump, an emission opening, pipes and the like.The low-temperature plasma oil gas ultra-clean emission treatment process and device are simple in process, compact in component, low in operation cost and high in treatment efficiency, the emission concentration of the oil gas emission opening is lower than 150 mg/m<3>, and good economic benefits, social benefits and environmental benefits are achieved.
Description
Technical field
The invention belongs to contaminated air purification techniques field, be specifically related to a kind of oil gas to the place such as storage tank farm, gas station volatile emission and carry out the method and apparatus that recycling purifies.
Background technology
The light-end products such as gasoline, benzene class are that a class has very strong volatile lighter hydrocarbons, can evaporate in air with different approach in storage and transport process, not only contaminated environment, and boosting haze weather affects the healthy of the mankind, and causes certain economic loss. The policy such as country's " ten, air ", " energy industry reinforcement prevention and control of air pollution programme of work " is concentrated and is put into effect successively, organic volatile gas controls requirement increasingly strict, clear and definite. Investigation of Petroleum Vapor Recovery Technology measure is inevitable means. Traditional method generally adopts the several ways such as absorption, condensation, catalysis burning, activated carbon adsorption, bioanalysis and plasma oxidation method. In the process of waste gas purification, Production by Catalytic Combustion Process purification efficiency is high, but shortcoming to be equipment volume relatively big, one-time investment and equipment operation energy consumption are bigger. Absorption method mainly with activated carbon adsorption, ideal purification effect, but activated carbon adsorption saturated after need regeneration, the waste gas after regeneration still needs to process. Absorption process, condensation method range of application are limited. Bioanalysis investment and operating cost are relatively low, but it is relatively big to run complicated operation, floor space, there is the probability of secondary pollution. Although plasma oxidation method is high to the removal efficiency of waste gas, but shortcoming is to produce O in plasma free radical reaction course simultaneously3Harmful side product. But, single process technique is often limited to the balance of economic input and treatment effect, allows many oil storage and transportation enterprises hang back in waste gas pollution control and treatment, in the face of Beijing, the up-to-date oil storage and transportation exhaust of oil standard in Tianjin promulgation (lower than 150mg/m3, far below existing national standard 25g/m3), therefore, applicant actively develops the petroleum vapor recovery that is adapted to new standard and ultra-clean emission treatment technical research and product development, it is proposed to the ultra-clean discharge process technique of low temperature plasma oil gas and device, to Ecological Civilization Construction, constructs green low-carbon gas industries and has important realistic meaning.
Summary of the invention
It is an object of the invention to provide the ultra-clean discharge process technique of low temperature plasma oil gas and device, this device technique is simple, parts are compact, operating cost is low, good treatment efficiency, and exhaust of oil mouth concentration of emission is lower than 150mg/m3, there is good economic benefit, social benefit and environmental benefit.
It is an object of the invention to be achieved through the following technical solutions:
The ultra-clean discharge process technique of low temperature plasma oil gas and device, it is characterised in that:
The composition such as including oil gas air inlet, air-introduced machine, microporous membrane cleaner unit, one-level spray column, condenser, adsorption tanks, nitrogenous source diluter, shutdown control system, plasma purification storehouse, two grades of spray columns, water storage box, immersible pump, floss hole and pipeline.
Described oil gas air inlet is connected with fan inlet, fan out draft is connected with microporous membrane cleaner unit air inlet, microporous membrane cleaner unit gas outlet is connected with the lower left air inlet of one-level spray column, gas outlet, one-level spray column top is connected with condenser air inlet, the not solidifying gas outlet of condenser is connected with adsorption tanks air inlet, gas outlet, adsorption tanks top is connected with nitrogenous source diluter air inlet, nitrogenous source diluter gas outlet is connected with plasma purification storehouse air inlet, gas outlet, plasma purification storehouse is connected with two grades of spray column lower left air inlets, last by two grades of spray column top drain outwardly emission compliance gases.
Described one-level spray column, two grades of spray column lower right outlets are connected with water storage box respectively, and the immersible pump outlet in water storage box is respectively connecting on one-level spray column, two grades of top-right spray throwers of spray column by PVC isocon, it is achieved shower water cyclic process.
Be respectively arranged with an electrically operated valve on described one-level spray column, two grades of spray column water inlet pipes, the time relay electrically operated valve controlled on two grades of spray columns was opened than the electrically operated valve time delay 30-60 second on one-level spray column.
Described shutdown control system is that the detection of a kind of exploded gas is reported to the police and concentration control apparatus, and its detection probe is embedded in from the remote pipeline of at least 10 times, air inlet front end, plasma purification storehouse caliber.
Air or pure nitrogen gas premix mouth it is additionally provided with above or below described nitrogenous source diluter air inlet, the volumetric mixture ratio of oil gas and air or pure nitrogen gas is not less than 1: 10, is additionally provided with gas flowmeter and concentration analyzer in the pipeline between the GN 2 source diluting device gas outlet and plasma purification storehouse air inlet.
Compared with prior art, the method have the advantages that
1. first waste gas is carried out pretreatment by the water in one-level spray column, fully absorbs volatile organic compounds, it is possible to stop the burning of pipeline attachment to be strile-backd. Processed waste gas can be humidified simultaneously, be conducive in Cement Composite Treated by Plasma, produce certain density hydroxyl radical free radical, strengthen plasma exhaust gas decomposition effect. Two grades of spray columns on the one hand can the ozone that produced by cold plasma discharge of absorption portion and active particle, increase the oxidisability of water, reduce final ozone discharge; Ozone and active particle fully can be dissolved in water on the other hand, so not only increase the effect of overall process, also further with the strong oxidizing property such as ozone and free radical, residual gas and the hydrotrope being continued reaction, plasma exhaust-gas treatment serves supplementary function. Water in two grades of spray columns is extracted in one-level spray column again, not only serves water-saving purpose, and the glassware for drinking water in two grades of spray columns has certain oxidisability and chemical reactivity, it is possible to play more better pretreating effect than pure water;
2. adopt polytetrafluoroethylmicroporous microporous membrane filter bag as microporous membrane cleaner unit, not only can effectively filter that mix in pending abnormal flavour harmful gas and that PM2.5 is suitable impurity, the flow velocity of gas can also be reduced, extend pending gas holdup time in low-temperature plasma cleaning position, enhancement process effect.
Accompanying drawing explanation
Fig. 1 is the structural schematic block diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, the present invention is described further:
The ultra-clean discharge process technique of low temperature plasma oil gas and device, as it is shown in figure 1, it includes the compositions such as oil gas air inlet (1), air-introduced machine (2), microporous membrane cleaner unit (3), one-level spray column (4), condenser (5), adsorption tanks (6), nitrogenous source diluter (7), shutdown control system (8), plasma purification storehouse (9), two grades of spray columns (10), water storage box (11), immersible pump (12), floss hole (13) and pipeline, described oil gas air inlet (1) is connected with the air inlet of air-introduced machine (2), the air outlet of air-introduced machine (2) is connected with the air inlet of microporous membrane cleaner unit (3), the gas outlet of microporous membrane cleaner unit (3) is connected with the lower left air inlet of one-level spray column (4), the gas outlet, top of one-level spray column (4) is connected with the air inlet of condenser (5), the not solidifying gas outlet of condenser (5) is connected with the air inlet of adsorption tanks (6), the gas outlet, top of adsorption tanks (6) is connected with the air inlet of nitrogenous source diluter (7), the gas outlet of nitrogenous source diluter (7) is connected with the air inlet of plasma purification storehouse (9), the gas outlet in plasma purification storehouse (9) is connected with the lower left air inlet of two grades of spray columns (10), last by the top drain outwardly emission compliance gas of two grades of spray columns (10), described one-level spray column (4), two grades of spray columns (10) lower right outlet be connected with water storage box (11) respectively, immersible pump (12) outlet in water storage box (11) is respectively connecting on one-level spray column (4), two grades of top-right spray throwers of spray column (10) by PVC isocon, it is achieved shower water cyclic process. be respectively arranged with an electrically operated valve on described one-level spray column (4), two grades of spray column (10) water inlet pipes, the time relay electrically operated valve controlled on two grades of spray columns (10) was opened than the electrically operated valve time delay 30-60 second on one-level spray column (4), described shutdown control system (8) is that a kind of exploded gas detection is reported to the police and concentration control apparatus, and its detection probe is embedded in the pipeline that at least 10 times, the air inlet front end caliber from plasma purification storehouse (9) is remote, it is additionally provided with air or pure nitrogen gas premix mouth above or below described nitrogenous source diluter (7) air inlet, the volumetric mixture ratio of oil gas and air or pure nitrogen gas is not less than 1: 10, is additionally provided with gas flowmeter and concentration analyzer in the pipeline between the GN 2 source diluting device (7) gas outlet and plasma purification storehouse (9) air inlet.
Its technological process is first pump the petrol gas collected from oil gas air inlet (1) by air-introduced machine (2) to carry out the removal of impurity to microporous membrane cleaner unit (3), oil gas after removing dust enters back in one-level spray column (4) and washes, absorption portion organic volatile gas, absorb liquid and be back in water storage box (11), unabsorbed organic volatile gas enters condenser (5) and carries out condensation liquefaction, the gas not being liquefied enters back into adsorption tanks (6) and carries out adsorption treatment, after not adsorbed residual gas is sufficiently mixed with air or pure nitrogen gas in nitrogenous source diluter (7), enter the decomposition carrying out petrol gas in plasma purification storehouse (9), product after decomposition enters into two grades of spray columns (10) and carries out double absorption, absorb liquid and be back in water storage box (11), gas up to standard drains into air finally by floss hole (13), realize the ultra-clean emission treatment process of petrol gas.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope of present disclosure; it is equal to replacement according to technical scheme and inventive concept thereof or is changed, all should be encompassed within protection scope of the present invention.
Claims (2)
1. the ultra-clean discharge process technique of low temperature plasma oil gas and device, it is characterized in that, the composition such as including oil gas air inlet, air-introduced machine, microporous membrane cleaner unit, one-level spray column, condenser, adsorption tanks, nitrogenous source diluter, shutdown control system, plasma purification storehouse, two grades of spray columns, water storage box, immersible pump, floss hole and pipeline, described oil gas air inlet is connected with fan inlet, fan out draft is connected with microporous membrane cleaner unit air inlet, microporous membrane cleaner unit gas outlet is connected with the lower left air inlet of one-level spray column, gas outlet, one-level spray column top is connected with condenser air inlet, the not solidifying gas outlet of condenser is connected with adsorption tanks air inlet, gas outlet, adsorption tanks top is connected with nitrogenous source diluter air inlet, nitrogenous source diluter gas outlet is connected with plasma purification storehouse air inlet, gas outlet, plasma purification storehouse is connected with two grades of spray column lower left air inlets, last by two grades of spray column top drain outwardly emission compliance gases, described one-level spray column, two grades of spray column lower right outlets are connected with water storage box respectively, and the immersible pump outlet in water storage box is respectively connecting on one-level spray column, two grades of top-right spray throwers of spray column by PVC isocon, it is achieved shower water cyclic process. be respectively arranged with an electrically operated valve on described one-level spray column, two grades of spray column water inlet pipes, the time relay electrically operated valve controlled on two grades of spray columns was opened than the electrically operated valve time delay 30-60 second on one-level spray column, described shutdown control system is that the detection of a kind of exploded gas is reported to the police and concentration control apparatus, and its detection probe is embedded in from the remote pipeline of at least 10 times, air inlet front end, plasma purification storehouse caliber.
2. the ultra-clean discharge process technique of low temperature plasma oil gas according to claim 1 and device, it is characterized in that: above or below described nitrogenous source diluter air inlet, be additionally provided with air or pure nitrogen gas premix mouth, the volumetric mixture ratio of oil gas and air or pure nitrogen gas is not less than 1: 10, is additionally provided with gas flowmeter and concentration analyzer in the pipeline between the GN 2 source diluting device gas outlet and plasma purification storehouse air inlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610095009.4A CN105617826A (en) | 2016-02-17 | 2016-02-17 | Low-temperature plasma oil gas ultra-clean emission treatment process and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610095009.4A CN105617826A (en) | 2016-02-17 | 2016-02-17 | Low-temperature plasma oil gas ultra-clean emission treatment process and device |
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| CN105617826A true CN105617826A (en) | 2016-06-01 |
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| CN201610095009.4A Pending CN105617826A (en) | 2016-02-17 | 2016-02-17 | Low-temperature plasma oil gas ultra-clean emission treatment process and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076080A (en) * | 2016-08-22 | 2016-11-09 | 苏州云白环境设备股份有限公司 | Exhaust gas scrubber for low-temperature plasma reactor |
| CN110314493A (en) * | 2019-07-29 | 2019-10-11 | 江苏鑫林环保设备有限公司 | A kind of exhaust air deodorization system and its working method applied to wastewater containing phenol and cyanide processing |
| CN111330365A (en) * | 2020-03-17 | 2020-06-26 | 孙婷婷 | Collect desulfurization dust removal deodorization in exhaust treatment device of an organic whole |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204365111U (en) * | 2014-11-02 | 2015-06-03 | 大连举扬科技有限公司 | A kind of low temperature plasma deodorizing device |
| CN105080278A (en) * | 2015-08-13 | 2015-11-25 | 中国石油化工股份有限公司 | Oil and gas recovery method |
-
2016
- 2016-02-17 CN CN201610095009.4A patent/CN105617826A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204365111U (en) * | 2014-11-02 | 2015-06-03 | 大连举扬科技有限公司 | A kind of low temperature plasma deodorizing device |
| CN105080278A (en) * | 2015-08-13 | 2015-11-25 | 中国石油化工股份有限公司 | Oil and gas recovery method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076080A (en) * | 2016-08-22 | 2016-11-09 | 苏州云白环境设备股份有限公司 | Exhaust gas scrubber for low-temperature plasma reactor |
| CN110314493A (en) * | 2019-07-29 | 2019-10-11 | 江苏鑫林环保设备有限公司 | A kind of exhaust air deodorization system and its working method applied to wastewater containing phenol and cyanide processing |
| CN111330365A (en) * | 2020-03-17 | 2020-06-26 | 孙婷婷 | Collect desulfurization dust removal deodorization in exhaust treatment device of an organic whole |
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