CN107913590A - Propylene oxide by chlorohydrination device exhaust processing unit - Google Patents
Propylene oxide by chlorohydrination device exhaust processing unit Download PDFInfo
- Publication number
- CN107913590A CN107913590A CN201711213872.6A CN201711213872A CN107913590A CN 107913590 A CN107913590 A CN 107913590A CN 201711213872 A CN201711213872 A CN 201711213872A CN 107913590 A CN107913590 A CN 107913590A
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- Prior art keywords
- gas
- piece alkali
- water sealed
- propylene oxide
- wind turbine
- Prior art date
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- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 84
- 239000003513 alkali Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000003518 caustics Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 239000002737 fuel gas Substances 0.000 claims abstract description 7
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 9
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 8
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 7
- 239000013589 supplement Substances 0.000 claims description 7
- 239000001294 propane Substances 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000009191 jumping Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 150000001345 alkine derivatives Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 206010017472 Fumbling Diseases 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The propylene oxide by chlorohydrination device exhaust processing unit of the present invention, including sequentially connected caustic wash tower, safe water sealed cans, wind turbine, piece alkali equipment safety water sealed tank and molten salt furnace；Further include interlock control system, the interlock control system includes being connected to online gas detecting instruments of VOC between wind turbine and piece alkali equipment safety water sealed tank, remote control liquid flowmeter in turn, send piece alkali stop valve, and is connected to emptying quck-opening valve and emptying regulating valve above caustic wash tower；The online gas detecting instruments of VOC are used to detect fuel gas content in the pipeline；Gas is delivered to piece alkali equipment safety water sealed tank after remote control liquid flowmeter measures and enters back into molten salt furnace in pipeline is burned as combustion air.This technique is by tail gas Macrodilution, reach less than the 25% of the explosible limit concentration of tail gas each component, then the combustion air as incinerator is burned, it is not only safe for operation, and can be fully effective to exhaust gas processing, on specific combustion apparatus even can recycle heat or save firing rate.
Description
Technical field
The present invention provides propylene oxide by chlorohydrination device exhaust processing unit, applied to generation alkane, alkene and alkynes
Deng the chemical plant installations of organic exhaust gas.
Background technology
Existing tail gas disposal technique has as follows：
1st, absorption method：It is main to use adsorbent, such as activated carbon to carry out adsorption treatment, periodic replacement absorption to organic tail gas
Agent.But this method is required supplementation with and regenerated there are adsorbent；The exhaust gas higher to temperature needs first to cool down；Complex waste gas needs
Pretreatment.
The major defect of this method is：Need to be operated under the conditions of certain pressure, filled for propylene oxide by chlorohydrination
For the tail gas put, the concentration of oxygen is higher 45% or so in tail gas, if be compressed to the tail gas, there is the danger of explosion.
Secondly if separating process selection is improper there are secondary pollution problems, so absorption method is not suitable for propylene oxide by chlorohydrination device tail
The processing of gas.
2nd, low-temperature plasma method：Exhaust gas after washing enters low-temperature plasma equipment after demister removes moisture and handles
System, the gas into low-temperature plasma equipment are free from moisture, dustless, agranular, and exhaust gas enters plasma apparatus, in height
Under the action of energy electronics, odor molecules are made to be stimulated, charged particle or intermolecular chemical bond are interrupted, while the water in air
The oxidizing species such as OH free radicals, active oxygen can be also produced under high energy electron bombardment with oxygen, these strong oxidizing property things
Matter is reacted with organic gas molecule, makes its decomposition.
The major defect of this method is：Spark discharge is also easy to produce, under peak voltage, reactor is also easy to produce spark and puts
Electricity, for propylene oxide unit tail gas, oxygen content is very high in organic tail gas, easily explodes.And for low temperature etc.
The requirements such as configuration design of the ion device to part of appliance, the accuracy of manufacture, tightness are very high.Such as to electric field frequency, voltage, height
The parameters such as the pulse of frequency, if some parameter therein does not reach requirement in complete set of equipments, as voltage electricity is low, frequency is excessive or mistake
It is low that very big influence can be caused to the yield of gas ions, or even can cause to explode, country's exhaust-gas treatment uses low temperature at present
Plasma technology is immature, in the stage of fumbling.So the technology is not suitable for the vent gas treatment of propylene oxide by chlorohydrination device.
3rd, photocatalytic oxidation：Exhaust gas is sent into waste gas purification unit after being introduced into total pipeline, is carried out in concentration homogenizer
Chemical Pretreatment, the cleaning solution used is acidic cleaning liquid.Absorption and releasing effect of this absorbing liquid to exhaust gas are obvious.Pass through
Absorption of the absorbing liquid to exhaust gas key component, it is ensured that the stabilization of exhaust gas concentration.Enter by the pretreated exhaust gas of scrubbing tower
Photocatalysis oxidation reaction tower.Photochemical oxidation technology is to make organic pollution oxidative degradation anti-under visible ray or action of ultraviolet light
Should, gas is finally by wind turbine, exhaust tube high altitude discharge.
The shortcomings that catalytic oxidation technologies：This method uses photocatalyst, there is the problem of catalyst inactivation；To high bond energy chemistry
Key, it is impossible to open, oxidation efficiency is limited, and since reaction condition is limited, photochemical oxidation degraded often not enough thoroughly, is easily produced
Raw a variety of organic intermediates.So the technology is not suitable for the processing of propylene oxide by chlorohydrination device exhaust.
Existing tail gas treatment process all can not achieve to propylene oxide by chlorohydrination device tail in petroleum chemical industry at present
Effective thoroughly processing of gas, we have invented chlorohydrination ring after the analysis to chlorohydrination exhaust gas component and each constitutive property
Ethylene Oxide device exhaust is diluted to the technology burned after safe concentration as combustion air.The technology burns skill with conventional exhaust
Art is different, is to be burned tail gas as fuel, if propylene oxide by chlorohydrination device in oil refining and other chemical plant installations
Tail gas directly burns, and combustable organic thing concentration is low nonflammable, furthermore, propylene oxide by chlorohydrination device exhaust oxygen concentration compared with
Height, there is the danger of back draft in burning process.This technique is not only safe for operation, and can be fully effective to exhaust gas place
Reason, heat can be even recycled on specific combustion apparatus or saves firing rate.
The content of the invention
1st, technical problems to be solved
For solve it is of the prior art there are security risk, need after-treatment and purification be not thorough the defects of, the present invention
Propylene oxide by chlorohydrination device exhaust processing unit is provided, solves the organic exhaust gas such as chemical plant installations alkane, alkene and alkynes
Discharge the pollution problem brought.
2nd, technical solution
The purpose of the present invention is mainly realized by following technical solution.
The propylene oxide by chlorohydrination device exhaust processing unit of the present invention, including sequentially connected caustic wash tower, Safety water seal
Tank, wind turbine, piece alkali equipment safety water sealed tank and molten salt furnace；It is characterized in that：Further include interlock control system, the interlocked control
System include being connected in turn online gas detecting instruments of VOC between wind turbine and piece alkali equipment safety water sealed tank, remote control liquid flowmeter,
Piece alkali stop valve is sent, and is connected to emptying quck-opening valve and emptying regulating valve above caustic wash tower；The online gas detections of VOC
Instrument is used to detect fuel gas content in the pipeline；Gas is delivered to piece alkali equipment safety after remote control liquid flowmeter measures in pipeline
Water sealed tank, then enters back into molten salt furnace and is burned as combustion air.
Further, the caustic wash tower is used to remove the sour gas in propylene oxide unit chlorohydrination tail gas.
Further, the safe water sealed cans are provided with supplement air intlet, remove the tail gas after sour gas in safety
Enter wind turbine together with after supplement air mixing in water sealed tank.
Further, piece alkali wind turbine is set between piece alkali equipment safety water sealed tank and molten salt furnace, in piece alkali wind turbine draining
Band " N " type curved pumping equipment is set at pipe, for draining and keeps manifold pressure.
Further, according to the requirement of gas course of conveying security control, emergent evacuation valve is set in caustic wash tower drain,
Quick action emergency valve is set in wind turbine conveying outlet line, emergent evacuation valve is set in piece alkali equipment safety water sealed tank air inlet.
Further, the fuel gas content that the online gas detecting instruments of the VOC are detected is total dense for propylene and propane
Degree；The interlock control system also detects proportioning K values, compressor flow and the blower fan work state of chlorine and propylene in tail gas；
The interlock control system passes through detected parameter and realizes interlocked control.
3rd, beneficial effect：
Compared with prior art, the beneficial effect of propylene oxide by chlorohydrination device exhaust processing unit of the invention is：
1) conventional exhaust burning process is typically employed in the higher oil refining apparatus and chemical plant installations of tail gas concentration, such device
Combustion furnace or torch are generally provided with, tail gas is directly burnt as fuel, and this to propylene oxide by chlorohydrination device
For the higher tail gas of organic concentration very low oxygen content, conventional incineration technology cannot use.It is chlorohydrination epoxy first
The tail gas concentration of propane device is very low, and burning is very unstable or cannot light；Even if next side by adding other fuel
Method is burnt, due in tail gas oxygen it is dense, have the danger of back draft, both features determine that chlorohydrination is organic
Exhaust gas cannot be burnt using conventional incineration technique.
So the present invention program carries out large quantity of air dilution to the exhaust gas of propylene oxide by chlorohydrination device, will be main organic
Combustible concentration be diluted to organic matter in atmosphere lower explosion limit less than 25%, this meets country of People's Republic of China (PRC) ring
Border protective standard《Air contaminant treatment engineering technology directive/guide》The safety requirements of HJ2000-20106.4.5 bars, then as burning
The combustion air of stove carries out burning disposal.It also can thoroughly handle, lead in the tail gas of other petrochemical plant analogous components composition
Cross burning, organic compounds processing is thorough, and there is no the problem of secondary pollution, and the technology is safe and reliable, specific
Combustion apparatus on can also save fuel or recycling thermal energy.
Although 2) feature of the present invention is tail gas incineration treatment technology, conventional incineration technique, this technique are different from
Operate more economical safety.
Brief description of the drawings
Fig. 1 is the device flow chart of the production method of the present invention.
In figure：1- caustic wash towers, 2- safe water sealed cans, 3- wind turbines, 4- piece alkali equipment safety water sealed tanks, 5- piece alkali wind turbines, 6-
Molten salt furnace, the online gas detecting instruments of 7-VOC, 8- remote control liquid flowmeters, 9- send piece alkali stop valve, 10- emptying quck-opening valves, 11- emptying
Regulating valve, 12- two level alkali tanks, 13- " N " type is curved, 14- clean waters.
Embodiment
Hereinafter, the specific embodiment of the present invention is described in detail in refer to the attached drawing, detailed according to these
Description, one of ordinary skill in the art can implement the present invention it can be clearly understood that the present invention.Without prejudice to the principle of the invention
In the case of, the feature in each different embodiment can be combined to obtain new embodiment, or is substituted some
Some features in embodiment, obtain other preferred embodiments.
Fig. 1 shows the propylene oxide by chlorohydrination device exhaust processing unit formed according to the preferred embodiment of the present invention.Such as
Shown in Fig. 1, propylene oxide by chlorohydrination device exhaust processing unit, including sequentially connected caustic wash tower 1, safe water sealed cans 2, wind turbine
3rd, piece alkali equipment safety water sealed tank 4 and molten salt furnace 6；Wherein, caustic wash tower 1 is used to remove in propylene oxide unit chlorohydrination tail gas
Sour gas；The safe water sealed cans 2 are provided with supplement air intlet, remove the tail gas after sour gas in safe water sealed cans
Enter wind turbine 3 together with after supplement air mixing；Fan outlet pipeline is provided with the online gas detecting instruments 7 of VOC, for detecting this
Fuel gas content in pipeline；3 outlet line of wind turbine is additionally provided with remote control liquid flowmeter 8, and gas is counted through remote control liquid flowmeter 8 in pipeline
Piece alkali equipment safety water sealed tank 4 is delivered to after amount, molten salt furnace 6 is then entered back into and is burned as combustion air.In piece alkali device
Piece alkali wind turbine 5 is set between safe water sealed cans 4 and molten salt furnace 6, sets band curved 13 draining of " N " type to set at piece alkali wind turbine drainpipe
Apply, for draining and keep manifold pressure.
The tail gas composition of propylene oxide by chlorohydrination device：
Propylene oxide by chlorohydrination device exhaust processing unit is used to remove the process of tail gas：
Propylene oxide unit chlorohydrination tail gas introduces safe water sealed cans 2, water sealed tank 2 after caustic wash tower 1 removes sour gas
Equipped with air intlet, enter wind turbine 3 together after chlorohydrination organic exhaust gas and supplement air mixing, gas passes through in fan outlet pipeline
The online gas detecting instruments 7 of VOC detect fuel gas content, then are delivered to piece alkali equipment safety water after the metering of remote control liquid flowmeter 8
Sealed cans 4, then enter molten salt furnace 6 through piece alkali wind turbine 5 again and are burned as combustion air.Since gas passes through Safety water seal, gas
Moisture is higher in body, in gas course of conveying, piece alkali wind turbine pipeline low spot design band curved 13 pumping equipment of " N " type, both
Energy draining, and manifold pressure can be kept.According to the requirement of gas course of conveying security control, it is vented in Caustic Wash Tower of Epoxy Propane
Mouth sets emergent evacuation valve, sets quick action emergency valve in wind turbine conveying outlet line, is set in piece alkali device water sealed tank air inlet
Emergent evacuation valve.
In order to realize the safe handling of chlorohydrination tail gas, which is provided with following interlock control system：
It is connected with the online gas detecting instruments 7 of VOC, teletransmission flow in turn between wind turbine 3 and piece alkali equipment safety water sealed tank 4
Meter 8, send piece alkali stop valve 9, the top of caustic wash tower 1 connection emptying quck-opening valve 10 and emptying regulating valve 11.The online gas inspections of VOC
Survey instrument 7 and detect the total concentration of propylene and propane in tail gas；The interlock control system also detects matching somebody with somebody for chlorine and propylene in tail gas
Than K values, compressor flow and blower fan work state；The interlock control system passes through detected parameter and realizes interlocked control,
Specific control is as follows：
(1) the online gas detecting instruments of VOC detect propylene (C3H6) and propane (C3H8) total gas concentration ＞ 0.5%, connection
Lock result is opened at the same time for emptying regulating valve 11 and emptying quck-opening valve 10, and 3 chain stop jumping of wind turbine, send piece alkali stop valve 9 to close.
(2) K values ＞ 0.6200 is matched, interlocking result is opened at the same time for emptying regulating valve 11 and emptying quck-opening valve 10, wind turbine 3
Chain stop jumping, send piece alkali stop valve 9 to close；The K values are the proportioning of chlorine and propylene in organic tail gas.
(3) compressor flow ＜ 5000m3/ h, interlocking result are opened at the same time for emptying regulating valve 11 and emptying quck-opening valve 10, wind
3 chain stop jumping of machine, send piece alkali stop valve 9 to close.
(4) wind turbine is out of service suddenly, and interlocking result is opened at the same time for emptying regulating valve 11 and emptying quck-opening valve 10, send piece
Alkali stop valve 9 is closed.
Although above by referring to specific embodiment, invention has been described, and one of ordinary skill in the art should
Work as understanding, in principle disclosed by the invention and scope, configuration disclosed by the invention can be directed to and details makes many modifications.
Protection scope of the present invention is determined by appended claim, and claim is intended to technical characteristic in claim
Equivalent literal meaning or whole modifications for being included of scope.
Claims (6)
1. propylene oxide by chlorohydrination device exhaust processing unit, including sequentially connected caustic wash tower, safe water sealed cans, wind turbine, piece
Alkali equipment safety water sealed tank and molten salt furnace；It is characterized in that：Further include interlock control system, the interlock control system include according to
The secondary online gas detecting instruments of VOC being connected between wind turbine and piece alkali equipment safety water sealed tank, remote control liquid flowmeter, send piece alkali to cut off
Valve, and it is connected to emptying quck-opening valve and emptying regulating valve above caustic wash tower；The online gas detecting instruments of VOC are used to detect
Fuel gas content in the pipeline；Gas is delivered to piece alkali equipment safety water sealed tank after remote control liquid flowmeter measures in pipeline, so
After enter back into molten salt furnace and burned as combustion air.
2. propylene oxide by chlorohydrination device exhaust processing unit as claimed in claim 1, it is characterised in that the caustic wash tower is used
In removing the sour gas in propylene oxide unit chlorohydrination tail gas.
3. propylene oxide by chlorohydrination device exhaust processing unit as claimed in claim 2, it is characterised in that the Safety water seal
Tank is provided with supplement air intlet, remove the tail gas after sour gas in safe water sealed cans together with after supplement air mixing into
Enter wind turbine.
4. propylene oxide by chlorohydrination device exhaust processing unit as claimed in claim 3, it is characterised in that pacify in piece alkali device
Piece alkali wind turbine is set between water sealed tank and molten salt furnace entirely, the band curved pumping equipment of " N " type is set at piece alkali wind turbine drainpipe, is used for
Draining and holding manifold pressure.
5. propylene oxide by chlorohydrination device exhaust processing unit as claimed in claim 4, it is characterised in that conveyed according to gas
The requirement of process safety control, emergent evacuation valve is set in caustic wash tower drain, is set in wind turbine conveying outlet line and is promptly cut
Disconnected valve, emergent evacuation valve is set in piece alkali equipment safety water sealed tank air inlet.
6. the propylene oxide by chlorohydrination device exhaust processing unit as described in one of claim 1-5, it is characterised in that described
The fuel gas content that the online gas detecting instruments of VOC are detected is the total concentration of propylene and propane；The interlock control system is also
Detect proportioning K values, compressor flow and the blower fan work state of chlorine and propylene in tail gas；The interlock control system passes through institute
The parameter of detection realizes interlocked control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213872.6A CN107913590B (en) | 2017-11-28 | 2017-11-28 | Tail gas treatment device of chlorohydrination method propylene epoxide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213872.6A CN107913590B (en) | 2017-11-28 | 2017-11-28 | Tail gas treatment device of chlorohydrination method propylene epoxide device |
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| Publication Number | Publication Date |
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| CN107913590A true CN107913590A (en) | 2018-04-17 |
| CN107913590B CN107913590B (en) | 2021-06-01 |
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| CN201711213872.6A Active CN107913590B (en) | 2017-11-28 | 2017-11-28 | Tail gas treatment device of chlorohydrination method propylene epoxide device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426257A (en) * | 2018-06-12 | 2018-08-21 | 北京恩吉节能科技有限公司 | A kind of industrial waste gas burning processing system |
| CN109185901A (en) * | 2018-10-15 | 2019-01-11 | 南京工业大学 | Flare gas recovery processing system for power generation and recovery processing method thereof |
| CN109364697A (en) * | 2018-12-03 | 2019-02-22 | 河北格源环保科技有限公司 | The system of the processing of methanol production VOCs |
| CN109631056A (en) * | 2019-01-31 | 2019-04-16 | 滨化集团股份有限公司 | A kind of technique of propylene oxide chlorohydrination tail gas and trichloro ethylene house exhaust combined governance |
| CN110389602A (en) * | 2018-04-19 | 2019-10-29 | 中国石油化工股份有限公司 | Method for controlling the content of specific gas in target container |
| CN113357541A (en) * | 2020-03-03 | 2021-09-07 | 中国石油化工股份有限公司 | Liquid storage tank tail gas treatment system and method |
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