CN106362552B - A kind of processing method and processing device of high-concentration organic waste gas - Google Patents
A kind of processing method and processing device of high-concentration organic waste gas Download PDFInfo
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- CN106362552B CN106362552B CN201510434291.XA CN201510434291A CN106362552B CN 106362552 B CN106362552 B CN 106362552B CN 201510434291 A CN201510434291 A CN 201510434291A CN 106362552 B CN106362552 B CN 106362552B
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- 239000007789 gas Substances 0.000 title claims abstract description 191
- 239000010815 organic waste Substances 0.000 title claims abstract description 22
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 81
- 238000009826 distribution Methods 0.000 claims abstract description 51
- 238000010521 absorption reaction Methods 0.000 claims abstract description 49
- 239000002283 diesel fuel Substances 0.000 claims abstract description 42
- 238000004880 explosion Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 230000003647 oxidation Effects 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 35
- 229930195733 hydrocarbon Natural products 0.000 claims description 24
- 150000002430 hydrocarbons Chemical class 0.000 claims description 24
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 7
- 239000005416 organic matter Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000002360 explosive Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000011068 loading method Methods 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000002918 waste heat Substances 0.000 claims description 2
- 239000006096 absorbing agent Substances 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 238000011282 treatment Methods 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract 1
- 239000004215 Carbon black (E152) Substances 0.000 description 16
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
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- 238000004523 catalytic cracking Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
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- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
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Abstract
The invention discloses a kind of processing methods of high-concentration organic waste gas, including (1) high-concentration organic waste gas enters diesel oil absorption equipment, make the stable 5000-35000mg/m after treatment of organic concentration in exhaust gas3；(2) by calculating step (1) discharge amount of exhaust gas and organic concentration, the suitably existing heating furnace of air quantity is matched in selection, and organic concentration is less than 200mg/m after mixing exhaust gas with heating furnace air distribution air3, oxidation stain material consumption oxygen amount is less than 0.05%；(3) under the premise of step (2), exhaust gas is introduced into gas mixer in proportion after step (1) is absorbed, and is mixed with heating furnace air distribution air；(4) gas is sent into heating furnace and is burned after mixing, purified gas qualified discharge.The present invention passes through the organic concentration in diesel oil Vapor recovery unit exhaust gas, and existing suitable heating furnace is selected with this concentration, in the case where discharging the uncertain situation of gas organic concentration, heating furnace and its air distribution blower will not be interfered to operate normally, no risk of explosion and hidden danger.
Description
Technical field
The present invention relates to environmentally friendly technical field of waste gas treatment, and in particular to a kind of processing method of high-concentration organic waste gas and
Device.
Background technique
The light-end products such as gasoline contain a large amount of light hydrocarbon component, have very strong volatility, hold in storage and transportation, storing process
It is volatile.On the one hand huge energy waste and economic loss are generated, on the other hand brings various harm to production and environment
Property, such as chronic or acute poisoning can be caused after easily causing fire explosion, pollution environment, people's sucking.Therefore, oil gas emission reduction and
Recovery technology is always the emphasis research topic in the fields such as domestic and international oil movement and storage engineering, environmental project, chemical engineering.Meanwhile
Increasingly strict with relevant environment preservation law regulation, exploitation new technology very must to the qualified discharge improvement of organic exhaust gas
It wants.
Currently, administering the commonplace method of organic exhaust gas both at home and abroad has absorption method, absorption process, condensation method, oxidizing process, life
There are some new technologies again in recent years in object facture etc., such as membrane separation process, light decomposition method and adsoption catalysis aoxidize General Office
Reason technology.Combustion method is totally higher than absorption process and absorption method to the removal efficiency of organic exhaust gas, it has also become VOCs treatment
Important means.Combustion method is that the organic waste-gas purification method compared thoroughly in oil plant utilizes existing heating furnace, burning
The processing organic exhaust gas such as furnace, catalytic cracking regenerator and CO boiler, torch, invests small, and purification efficiency is high.Current combustion method master
There are common flame combustion, catalysis burning, heat-accumulation combustion, heat-storage catalytic burning, boiler heating power burning etc..Commonly flame combustion is
The exhaust gas of organic gas is sent into the combustion furnace for having flame, so that combustible component is burnt, is converted to carbon dioxide and water, the method
Treatment effeciency is high, but energy consumption is high, and operating cost is excessively high, and a large amount of hydrocarbon resources waste in exhaust gas.Boiler heating power burning skill
Art refers to using existing for electric boiler, heating boiler or the dedicated heating furnace of other non-exhaust-gas treatments or incinerator, by the useless of generation
Gas is introduced directly into combustion chamber, achievees the purpose that remove pollutant in the case where reducing oil (gas) filling device as far as possible.The method has simple
Practical, with low investment, operating cost is low, and removal efficiency is high, moreover it is possible to and certain economic benefit is brought, VOCs treatment is suitable for,
Use is more universal at present.
CN103697482A discloses a kind of organic exhaust gas boiler heating power burning processing system and treatment process, processing unit
Including sequentially connected absorption plant, boiler fan, boiler, desulphurization denitration dust-extraction unit and chimney, guaranteeing clean-up effect
Under the premise of, it is handled by the processing of setting demisting, emergency emission treatment and air balance, enhances the stability and safety of entire technique
Property.But this method only exhaust gas concentration be lower than explosion limit 1/4 when, just can enter subsequent incineration system continue to locate
Reason, is only applicable to the processing of low concentration organic exhaust gas.For high-concentration organic waste gas, due under the explosion of most of organic matters
Limit is in 20000~50000mg/m3, since exhaust gas concentration to be controlled can just enter subsequent burning lower than 1/4 explosion limit in limited time
Processing namely exhaust gas total hydrocarbon concentration are higher than 12500 mg/m3Exhaust gas all will directly from emergency discharge outlet discharge, processing be not achieved
Purpose.In addition, the device also needs to be arranged special air balance processing, and the absorption plant in the technique is only to exhaust gas
In impurity, particle and acidic materials pre-processed, the hydrocarbons in exhaust gas cannot be recycled, cause a large amount of hydrocarbon resources wave
Take, it is less economical.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of processing method and processing device of high-concentration organic waste gas.This hair
The bright organic concentration passed through in diesel oil Vapor recovery unit exhaust gas first, and existing suitable heating furnace is selected with this concentration, it controls
Exhaust gas enters organic concentration when heating furnace with air distribution air, the uncertain feelings of organic pollutant object concentration in discharge exhaust gas
Under condition, the normal operation of heating furnace and its air distribution blower, no risk of explosion and hidden danger will not be interfered, purified gas can be up to standard
Discharge.
The processing method of high-concentration organic waste gas of the present invention, including following content:
(1) high-concentration organic waste gas enters diesel oil absorption equipment, and the organic concentration in exhaust gas is made to be basically stable at processing
5000-35000mg/m afterwards3；
(2) by calculating step (1) discharge amount of exhaust gas and organic concentration, the suitably existing heating furnace of air quantity is matched in selection,
It is required that exhaust gas mixed with heating furnace air distribution air after gas organic concentration be less than 200mg/m3, preferably smaller than 100mg/m3, oxygen
Change pollutant oxygen demand (oxygen amount in oxidation gaseous effluent in pollutant consumption air distribution air) is less than 0.05%, and preferably smaller than 0.03%；
(3) under the premise of step (2), exhaust gas after step (1) absorption processing is introduced into gas mixer in proportion, with
The air distribution air of selected existing heating furnace is sufficiently mixed；
(4) gas is sent into heating furnace burning disposal, purified gas qualified discharge by air distribution blower after mixing.
In the present invention, high-concentration organic waste gas escapes during petroleum chemical enterprise's light-end products loading-unloading vehicle handling ship etc.
The flow of scattered oil gas, such discharge gas is basicly stable, but its organic concentration and the oil product of loading, unloading operation are closely related,
It generally may be up to tens of thousands of to up to a million mg/m3.In the offgas in the uncertain situation of organic concentration, pass through diesel oil absorption equipment
The organic concentration of exhaust gas can be made to be basically stable at 5000-35000mg/m3Between, it can not only guarantee subsequent processing mistake
The stabilization of organic concentration in journey, and can the maximum amount of hydrocarbons recycled in exhaust gas.
In the present invention, diesel oil selects gas-oil, including normal two wires gas-oil, atmosphere 3rd side cut gas-oil, catalytic cracking gas-oil,
It is preferred that normal two, three line gas-oil, the rich diesel oil absorbent after absorption goes hydrotreating after mixing with hydrogenating materials.In step (1)
By the way that diesel oil absorption equipment operating parameter is adjusted, organic concentration in exhaust gas after control absorbs, to meet step (1)
It is required that.Main control parameters have: liquid-gas ratio 60-150L/m3, preferably 80-100L/m3；Absorbing temperature is 5-40 DEG C, preferably
It is 10-35 DEG C；Absorption pressure (gauge pressure) is 20-200kPaG, preferably 50-150kPaG.
In the present invention, for step (2) by calculating step (1) discharge amount of exhaust gas and organic concentration, selection is suitable with air quantity
Heating furnace, maximum organic concentration is calculated in exhaust gas after usually being absorbed with diesel oil.The heating furnace selected in step (2)
Operation operating condition is good, and fuel combustion is abundant, and the non-methane total hydrocarbons in flue gas is less than 20mg/m3, NOXLess than 100mg/m3, can be
Oil refining process heating furnace, FCC waste heat boiler burn furnace, tail gas of sulphur incinerator, burn ammonia furnace etc..Exhaust gas after being absorbed due to diesel oil
Middle organic concentration is relatively stable, therefore selects existing suitable heating furnace with this concentration, does not need newly added equipment, will not do
Disturb the normal operation of existing heating furnace or incinerator.
In the present invention, organic exhaust gas, which enters the processing such as heating furnace or incinerator, 3 kinds of modes, first is that being directly entered burning
Room, second is that entering with air, third is that entering (coal-fired, oil burning boiler cannot be inputted with fuel) with fuel gas.First way is wanted
Guarantee that the organic concentration in exhaust gas is less than the 25% of lower explosion limit LEL or is much larger than upper explosion limit；The second way will guarantee to mix
The organic concentration closed in gas is less than the 25% of lower explosion limit LEL；The third mode will guarantee that the organic matter in mixed gas is dense
Degree is much larger than upper explosion limit.Therefore, the lower exhaust gas of organic concentration preferably enters with air, and dense exhaust gas is preferably with fuel
Gas enters.For the present invention by the concentration of organic matter in diesel oil Vapor recovery unit exhaust gas, the suitable heating furnace of air quantity is matched in selection, and is controlled
The organic concentration of gas is less than 200mg/m after exhaust gas is mixed with heating furnace air distribution air3, preferably smaller than 100mg/m3, oxidation dirt
Dye material consumption oxygen amount is less than 0.05%, and preferably smaller than 0.03%, it is ensured that the organic concentration in mixed gas far smaller than explodes
The 25% of lower limit LEL, exhaust gas can enter heating furnace with air, and risk of explosion is not present, will not interfere existing heating furnace or burn
Furnace is burnt to operate normally.
In the present invention, exhaust gas needs to be introduced into gas mixer after step (3) diesel oil absorbs, the air distribution with selected heating furnace
Air is sufficiently mixed, to prevent the explosive air mass of the excessively high formation of local concentration.
The present invention is used for the processing unit of above-mentioned high-concentration organic waste gas processing method, including diesel oil absorption equipment, gas
Mixer, existing heating furnace air distribution blower and heating furnace, diesel oil absorption equipment are used to absorb the organic matter in exhaust gas, make that bavin is discharged
The organic concentration of oily absorption equipment exhaust gas is stablized in 5000-35000mg/m3；Gas mixer after absorbing diesel oil for giving up
Gas is sufficiently mixed with heating furnace air distribution air proportion, and the organic concentration of gas after mixing is made to be less than 200mg/m3, oxidation dirt
Material consumption oxygen amount is contaminated less than 0.05%；Gas is sent into heating furnace burning disposal by heating furnace air distribution blower after mixing, and purified gas is up to standard
Discharge.
In the present invention, emergency interlocking is installed on the pipeline before gas mixer and on diesel oil absorption equipment outlet pipeline and is cut
Disconnected valve group and exhaust tube, when heating furnace air distribution blower stops, emergency switching-off valve group carries out interlocking switching, and cutting is mixed into gas
The valve group of clutch opens exhaust gas to exhaust tube valve group, makes exhaust gas by exhaust tube direct emission.
In the present invention, diesel oil absorption equipment can use the structurally and operationally condition of this field routine, such as use material filling type
Absorption tower, inner-tower filling material are conventional structured packing, preferably metal structured packing, more preferable metal step ring.
In the present invention, exhaust gas distributor can be set in organic exhaust gas and the well-mixed gas mixer of air distribution air,
To prevent the explosive air mass of the excessively high formation of local concentration.
In the present invention, on the pipeline before diesel oil absorption equipment discharge exhaust gas is mixed with air distribution air and discharge exhaust gas is extremely arranged
Fire arrester is set on the pipeline of inflator, enhances stability and safety.
Compared with prior art, the method for the present invention can achieve it is following the utility model has the advantages that
(1) by organic concentration in diesel oil Vapor recovery unit exhaust gas, organic pollutant object concentration is not true in discharge exhaust gas
In the case where fixed, organic concentration in exhaust gas can be made from tens of thousands of to up to a million mg/m before processing3It is basically stable at processing
5000~35000mg/m afterwards3, the normal operation of heating furnace and its air distribution blower will not be interfered, no risk of explosion and dangerous
Hidden danger, and can processing to avoid a large amount of wastes of hydrocarbons, especially suitable for high-concentration organic waste gas.
(2) fluctuation of concentration of high-concentration organic waste gas is larger, such as with fuel gas or is directly entered heating furnace, there are risk,
Safety is poor.For this purpose, high-concentration organic waste gas is entered heating furnace with air by the present invention, by organic matter in gas after mixing
Regulate and control while concentration and oxidation stain material consumption oxygen amount, does not need to set flammable gas alarm, it is ensured that safe combustion.
(3) by organic concentration in diesel oil Vapor recovery unit exhaust gas, and existing suitable heating furnace is selected with this concentration, controlled
The concentration of organic matter when exhaust gas processed enters heating furnace with air in the offgas in the uncertain situation of organic concentration, guarantees existing
There is the operation steady in a long-term of heating furnace, purified gas can qualified discharge.
(4) installation emergency interlocking cutting valve group on the pipeline before gas mixer and on diesel oil absorption equipment outlet pipeline
And exhaust tube, the pipe of exhaust gas to exhaust tube is discharged on the pipeline before exhaust gas is mixed with air distribution air and discharged in diesel oil absorption equipment
Fire arrester is set on road, the stability and safety of this method can be further enhanced.
Detailed description of the invention
Fig. 1 is a kind of concrete technology flow process figure of the invention；
Wherein, 1- high-concentration organic waste gas, 2- diesel oil absorption equipment, 3- fire arrester, 4- heating furnace air distribution air, 5- gas
Mixer, 6- heating furnace air distribution blower, 7- heating furnace, 8- fire arrester, 9- emergency exhaust tube, 10,11- emergency interlocking stop valve
Group.
Specific embodiment
The method of the present invention is described in detail below by drawings and examples.
The processing unit of high-concentration organic waste gas of the present invention is as shown in Fig. 1, including diesel oil absorption equipment 2, fire arrester 3,
Gas mixer 5, heating furnace air distribution blower 6, heating furnace 7, fire arrester 8, emergency exhaust tube 9, emergency interlocking cutting 10 and of valve group
11。
The processing technological flow of high-concentration organic waste gas of the present invention is as shown in Fig. 1, and high-concentration organic waste gas 1 enters diesel oil
Absorption equipment 2 carries out absorption processing, the gas after diesel oil absorbs, by fire arrester 3, in gas mixer 5, with heating
Furnace air distribution air 4 is sufficiently mixed, and under the driving of heating furnace air distribution blower 6, is carried out burning disposal into heating furnace 7, is worked as heating
Furnace air distribution blower 6 stops working, then interlocking cutting valve group 10,11 of meeting an urgent need starts immediately, closes valve 10, stops introducing exhaust gas into
Heating furnace opens valve 11, and exhaust gas passes through fire arrester 8, by 9 dump of emergency exhaust tube.
Embodiment 1
Using the process of attached drawing 1 of the present invention, the small oil filling riser train gasoline entrucking loss oil gas in certain refinery, the row of loss gas are handled
It is high-volume 300m3/ h, the total hydrocarbon concentration of gas are 300-413g/m3, loss gas is using the absorption of atmosphere 3rd side cut gas-oil, the liquid of absorption
Gas ratio is 100L/m3, absorbing temperature is 35 DEG C, absorption pressure 100kPa, makes the total hydrocarbon concentration 25000- of exhaust gas after absorbing
30000mg/m3Left and right.Selection air distribution air capacity is 90000m3Gas carries out at burning after the heating furnace of/h or more absorbs diesel oil
Reason, the total hydrocarbon concentration of gas is less than 100mg/m after organic exhaust gas is mixed with air distribution air3, oxidation stain material consumption oxygen amount is less than
0.028%.Gasoline entrucking loss oil gas after absorption-burning disposal can qualified discharge, discharge flue gas in non-methane total hydrocarbons concentration it is small
In 20mg/m3.By longtime running (1 year or more), heating furnace and air distribution blower are chronically at normal operation, stability and peace
Good perfection.
Embodiment 2
Using the process of attached drawing 1 of the present invention, the big oil filling riser train gasoline entrucking loss oil gas in certain refinery, the row of loss gas are handled
It is high-volume 500m3/ h, the total hydrocarbon concentration of gas are 200-450g/m3, loss gas is using the absorption of atmosphere 3rd side cut gas-oil, the liquid of absorption
Gas ratio is 100L/m3, absorbing temperature is 35 DEG C, absorption pressure 150kPa, makes the total hydrocarbon concentration 20000- of exhaust gas after absorbing
26000mg/m3.Selection air distribution air capacity is 130000m3Gas carries out burning disposal after the heating furnace of/h or more absorbs diesel oil,
The total hydrocarbon concentration of gas is less than 100mg/m after organic exhaust gas is mixed with air distribution air3, oxidation stain material consumption oxygen amount is less than
0.028%.Gasoline entrucking loss oil gas after absorption-burning disposal can qualified discharge, discharge flue gas in non-methane total hydrocarbons concentration it is small
In 20mg/m3.By longtime running (1 year or more), heating furnace and air distribution blower are chronically at normal operation, stability and peace
Good perfection.
Embodiment 3
Using the process of attached drawing 1 of the present invention, the big oil filling riser train gasoline entrucking loss oil gas in certain refinery, the row of loss gas are handled
It is high-volume 500m3/ h, the total hydrocarbon concentration of gas are 200-450g/m3, loss gas is using the absorption of atmosphere 3rd side cut gas-oil, the liquid of absorption
Gas ratio is 80L/m3, absorbing temperature is 10 DEG C, absorption pressure 80kPa, makes the total hydrocarbon concentration 15000- of exhaust gas after absorbing
20000mg/m3.Selection air distribution air capacity is 100000Nm3Gas carries out at burning after the heating furnace of/h or more absorbs diesel oil
Reason, the total hydrocarbon concentration of gas is less than 100mg/m after organic exhaust gas is mixed with air distribution air3, oxidation stain material consumption oxygen amount is less than
0.028%.Gasoline entrucking loss oil gas after absorption-burning disposal can qualified discharge, discharge flue gas in non-methane total hydrocarbons concentration it is small
In 20mg/m3.By longtime running (1 year or more), heating furnace and air distribution blower are chronically at normal operation, stability and peace
Good perfection.
Comparative example 1
When the organic exhaust gas concentration of processing is higher, preferably enter incinerator with fuel gas, the high concentration that embodiment 2 is used
Organic exhaust gas enters incinerator with fuel gas.Since the total hydrocarbon concentration of the exhaust gas is 200-450g/m3, mixed with fuel gas or
It is directly entered heating furnace burner hearth, fuel gas fluctuation is larger, and very big, device operation shakiness is influenced on the normal operating of existing heating furnace
Fixed, exhaust gas is not able to satisfy emission request.And exhaust gas, containing aerobic, there are serious risk of explosion.
Comparative example 2
Process flow and operating condition are with embodiment 2, the difference is that do not use diesel oil to absorb, directly with air distribution air
Mixing, if selecting with air distribution air quantity to be 130000Nm3/ h heating furnace air distribution be sufficiently mixed after enter heating furnace burn, exhaust gas with
Total hydrocarbon concentration after air distribution air is sufficiently mixed is 766-1725mg/m3Although well below 25%LEL(lower explosion limit), it does not deposit
In security risk, but oxygen consumption needed for burning this some of the contaminants is 0.22%~0.48%, can be to existing heating furnace just
Often operation influences very big.
Comparative example 3
Process flow and operating condition with embodiment 2, the difference is that, if select with air distribution air quantity for
10000Nm3/ h heating furnace air distribution enters heating furnace after being sufficiently mixed and burns, and exhaust gas is with the mixed total hydrocarbon concentration of air distribution air
925-1238mg/m3Although well below 25%LEL(lower explosion limit), security risk is not present, burns this partial contamination
Oxygen consumption needed for object is 0.26%~0.35%, can be influenced on the normal operating of existing heating furnace very big.
Claims (14)
1. a kind of processing method of high-concentration organic waste gas, it is characterised in that including following content:
(1) high-concentration organic waste gas enters diesel oil absorption equipment, and being basically stable at the organic concentration in exhaust gas, treated
5000-35000mg/m3；
(2) by calculating step (1) discharge amount of exhaust gas and organic concentration, the suitably existing heating furnace of air quantity is matched in selection, it is desirable that
The organic concentration of gas is less than 200mg/m after exhaust gas is mixed with heating furnace air distribution air3, oxidation stain material consumption oxygen amount is less than
0.05%；
(3) under the premise of step (2), exhaust gas after step (1) absorption processing is introduced into gas mixer in proportion, and it is selected
The air distribution air of heating furnace is sufficiently mixed；
(4) gas is sent into heating furnace burning disposal, purified gas qualified discharge by air distribution blower after mixing.
2. according to the method described in claim 1, it is characterized by: high-concentration organic waste gas is mainly from petroleum chemical enterprise's light oil
Product loading-unloading vehicle loads and unloads the oil gas of loss during ship, and the flow of such discharge gas is basicly stable, but its organic concentration and loading
The oil product of operation is closely related, is tens of thousands of to up to a million mg/m3。
3. according to the method described in claim 1, it is characterized by: the diesel oil of step (1) selects gas-oil, the Fu Chai after absorption
Oil absorber goes hydrotreating after mixing with hydrogenating materials.
4. according to the method described in claim 3, it is characterized by: the diesel oil of step (1) selects normal two, three line gas-oil.
5. according to claim 1, method described in 3 or 4, it is characterised in that: by being operated to diesel oil absorption equipment in step (1)
Parameter is adjusted, the organic concentration after control absorbs in exhaust gas, to meet the requirement of step (1)；Main control parameters have:
Liquid-gas ratio is 60-150L/m3, absorbing temperature is 5-40 DEG C, absorption pressure 20-200kPaG.
6. according to the method described in claim 5, it is characterized by: control liquid-gas ratio is 80-100L/m3, absorption temperature is 10-
35 DEG C, absorption pressure 50-150kPaG.
7. according to the method described in claim 1, it is characterized by: step (2) is by calculating step (1) discharge amount of exhaust gas and having
The suitably existing heating furnace of air quantity is matched in machine object concentration, selection, and maximum organic concentration is calculated in exhaust gas after being absorbed with diesel oil.
8. according to the method described in claim 1, it is characterized by: step (2) in select heating furnace operation operating condition it is good,
Fuel combustion is abundant, and the non-methane total hydrocarbons in flue gas is less than 20mg/m3, NOXLess than 100mg/m3, the heating furnace of selection is oil refining
Furnace, FCC waste heat boiler burn furnace, tail gas of sulphur incinerator or burn ammonia furnace.
9. according to the method described in claim 1, it is characterized by: step (2) control exhaust gas is mixed with heating furnace air distribution air
The organic concentration of gas is less than 100mg/m afterwards3, oxidation stain material consumption oxygen amount is less than 0.03%, and there is no risk of explosion, also not
Existing heating furnace or incinerator can be interfered to operate normally.
10. the processing unit for any high-concentration organic waste gas processing method of claim 1-9, it is characterised in that:
Including diesel oil absorption equipment, gas mixer, existing heating furnace air distribution blower and heating furnace, diesel oil absorption equipment is useless for absorbing
Organic matter in gas, and stablize the organic concentration that diesel oil absorption equipment exhaust gas is discharged in 5000-35000mg/m3；Gas is mixed
Clutch is sufficiently mixed for exhaust gas after absorbing diesel oil with heating furnace air distribution air proportion, keeps the organic matter of gas after mixing dense
Degree is less than 200mg/m3, oxidation stain material consumption oxygen amount is less than 0.05%；Gas is sent into heating by heating furnace air distribution blower after mixing
Furnace burning disposal, purified gas qualified discharge.
11. device according to claim 10, it is characterised in that: set on the pipeline before gas mixer with diesel oil absorption
Installation emergency interlocking cutting valve group and exhaust tube on standby outlet pipeline, when heating furnace air distribution blower stops, emergency switching-off valve group
Interlocking switching is carried out, cutting enters the valve group of gas mixer, opens exhaust gas to exhaust tube valve group, keeps exhaust gas direct by exhaust tube
Discharge.
12. device according to claim 10, it is characterised in that: diesel oil absorption equipment uses material filling type absorption tower, in tower
Filler is metal structured packing.
13. device according to claim 10, it is characterised in that: in organic exhaust gas and the well-mixed gas of air distribution air
Exhaust gas distributor is set in mixer, to prevent the explosive air mass of the excessively high formation of local concentration.
14. device according to claim 10, it is characterised in that: mixed in diesel oil absorption equipment discharge exhaust gas and air distribution air
Fire arrester is set on pipeline before conjunction and on discharge exhaust gas to the pipeline of exhaust tube, enhances stability and safety.
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| CN108662595B (en) * | 2017-03-31 | 2019-08-06 | 安士英 | Hydrogen and oxygen mixture handles organic exhaust gas device |
| CN108421365A (en) * | 2018-03-19 | 2018-08-21 | 杭州正大重工机械有限公司 | A kind of organic exhaust gas is collected and processing system |
| CN109000270B (en) * | 2018-08-31 | 2024-05-07 | 江苏新久扬环保设备科技有限公司 | Closed high-temperature combustion oil gas purifying device and process thereof |
| CN111790247A (en) * | 2019-04-08 | 2020-10-20 | 王海影 | High-concentration organic waste gas efficient treatment system |
| CN116036817A (en) * | 2021-10-28 | 2023-05-02 | 中国石油化工股份有限公司 | A method and device for treating associated gas in fire flooding oilfields |
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