CN108434982A - Cyclohexanone exhaust gas processing device and method - Google Patents
Cyclohexanone exhaust gas processing device and method Download PDFInfo
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- CN108434982A CN108434982A CN201810398140.7A CN201810398140A CN108434982A CN 108434982 A CN108434982 A CN 108434982A CN 201810398140 A CN201810398140 A CN 201810398140A CN 108434982 A CN108434982 A CN 108434982A
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/864—Removing carbon monoxide or hydrocarbons
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
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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
- B01D2257/50—Carbon oxides
- B01D2257/502—Carbon monoxide
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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
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Exhaust Gas After Treatment (AREA)
Abstract
The present invention relates to a kind of cyclohexanone exhaust gas processing device and method, the cyclohexanone exhaust gas processing device includes：Primary heater, pending cyclohexanone tail gas enter expanding machine after primary heater heating；Expansion power generation unit, the expansion power generation unit include expanding machine and generator, and the expanding machine connects the outlet of the primary heater, and generator is generated electricity using the energy of expanding machine output；Secondary heater, expansion tail gas enter oxidation reactor after secondary heater heats；Oxidation reactor, expands carbon monoxide and volatile organic matter in tail gas oxidation reaction occurs in the oxidation reactor and be converted into carbon dioxide and water as purified gas.The present invention has many advantages, such as that simple in structure, safe and stable operation, organic efficiency are high, good in economic efficiency.
Description
Technical field
The present invention relates to volatile organic waste gas process field, more particularly to a kind of expansion power generation of Cyclohexanone Production tail gas
And purifying processing device and method.
Background technology
Cyclohexane oxidation process produces the device of cyclohexanone in normal productive process, from tail gas absorber (alcohol ketone absorption tower)
The cyclohexanone tail gas pressure that top row is released is very high (about 10 atmospheric pressure), and contains methane, ethane, propane, fourth in tail gas
The comhustible components such as the volatile organic matters such as alkane, pentane, hexamethylene, cyclohexanone, cyclohexanol and carbon monoxide, if tail gas is without processing
It is directly discharged in air, not only causes the waste of the energy, while serious pollution also is caused to environment.
Currently, during the patent of Publication No. CN106362548A discloses a kind of cyclohexane oxidation process production cyclohexanone
The processing method of oxidized tail gas, this method cyclohexanone tail gas is absorbed using water absorption tower after again by expanding machine by pressure
It can be converted into electric energy recycling, but this method has the following defects：1. the alkanes gas in tail gas cannot be absorbed；2. being absorbed through water
Tail gas after tower absorbs is rich in saturated water, limits the temperature and pressure after expanding machine decompression desuperheat and (is carried secretly in tail gas after expansion
Liquid water can do great damage to expanding machine impeller), namely limit the working efficiency of expanding machine so that cyclohexanone tail gas
Pressure energy cannot obtain high efficiente callback；3. water absorption tower using the waste water of waste water system as absorbent, it is organic in waste water
Object is easy, by the reversed air lift of cyclohexanone tail gas, to bring new pollution, while water absorb the bottom of the tower aqueous solution is sent to wastewater treatment system
System recycling alcohol ketone needs to consume amount of heat again, and system economy is poor.The patent of Publication No. CN107469615A discloses
A kind of oxidizing cyclohexanone tail gas clean-up and method of comprehensive utilization, this method use organic in adsorbent equipment Adsorption of Cyclohexanone tail gas
Object obtains the first intermediate gas, and purified gas is so incensed that among catalysis oxidation first and utilizes purified gas expansion power generation, but this method is deposited
In following defect：1. the regeneration of adsorbent equipment needs a large amount of thermal energy, and the organic matter parsed is mixture, utility value
It is low；Carbon monoxide and a small amount of organic matter are contained only in the first intermediate gas simultaneously, is not enough to the heat balance of support catalytic oxidizing equipment,
It is also required to additionally supplement thermal energy, whole economic efficiency is low；2. adsorbent equipment needs to switch between absorber at work,
The pressure of cyclohexanone tail gas can be caused to fluctuate, influence the stable operation of expansion power generator；3. catalytic oxidizing equipment oxidation process
The heat of middle release is unstable so that expanding machine working efficiency substantially reduces；4. using two-stage catalysis oxidation, system structure is multiple
Miscellaneous, it is more to be related to pressure vessel, and danger increases；
Invention content
In order to solve the deficiency in above-mentioned prior art, the present invention provides a kind of simple in structure, safety and stability fortune
Row, organic efficiency height, good in economic efficiency, the cyclohexanone exhaust gas processing device of non-pollution discharge.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of cyclohexanone exhaust gas processing device, the cyclohexanone exhaust gas processing device include：
Primary heater, pending cyclohexanone tail gas enter expanding machine after primary heater heating；
Expansion power generation unit, the expansion power generation unit include expanding machine and generator, the expanding machine connection described the
The outlet of one heater, generator are generated electricity using the energy of expanding machine output；
Secondary heater, expansion tail gas enter oxidation reactor after secondary heater heats；The expansion tail gas is warp
Cyclohexanone tail gas after expander decompression；
In the oxidation reactor oxygen occurs for oxidation reactor, the carbon monoxide and volatile organic matter expanded in tail gas
Change reaction and is converted into carbon dioxide and water as purified gas.
According to above-mentioned cyclohexanone exhaust gas processing device, it is preferable that the cyclohexanone exhaust gas processing device further includes：
First Heat Exchanger, the First Heat Exchanger are located at the upstream of the primary heater, including cyclohexanone exhaust gas channel
With purified gas channel, heat exchange is carried out for pending cyclohexanone tail gas and purified gas；The outlet of the cyclohexanone exhaust gas channel connects
Connect the entrance of the primary heater.
According to above-mentioned cyclohexanone exhaust gas processing device, it is preferable that the cyclohexanone exhaust gas processing device further includes：
Second heat exchanger, on the flow path that second heat exchanger is arranged between expanding machine and secondary heater, including it is swollen
Swollen exhaust gas channel and purified gas channel carry out heat exchange for expansion tail gas and purified gas；The entrance of the expansion exhaust gas channel connects
The outlet for connecing the expanding machine, the outlet for expanding exhaust gas channel connect the entrance of the secondary heater；Oxidation reactor goes out
Mouth connects the purified gas channel of the First Heat Exchanger or the purified gas channel of the second heat exchanger, and the purified gas of First Heat Exchanger is logical
The purified gas channel of road and the second heat exchanger is connected.
According to above-mentioned cyclohexanone exhaust gas processing device, it is preferable that the First Heat Exchanger is pipe heat exchanger.
According to above-mentioned cyclohexanone exhaust gas processing device, optionally, the First Heat Exchanger is fin-tube heat exchanger, pipe
Journey is cyclohexanone exhaust gas channel, 100 DEG C of design temperature, design pressure 1.1MPaG；Shell side is purified gas channel, design temperature 150
DEG C, design pressure：10kPaG, finned tube 5~25mm of wing height, 0.8~1.5mm of fin thickness, 2~10mm of spacing of fin.
According to above-mentioned cyclohexanone exhaust gas processing device, it is preferable that second heat exchanger is plate heat exchanger.
According to above-mentioned cyclohexanone exhaust gas processing device, optionally, the interior journey of second heat exchanger is that expansion tail gas is logical
Road, 350 DEG C of design temperature, design pressure 10.0kPaG；Outer journey is purified gas channel, 650 DEG C of design temperature, design pressure
10kPaG。
According to above-mentioned cyclohexanone exhaust gas processing device, optionally, the primary heater, secondary heater are shell-and-tube
Steam heater or electric heater.
According to above-mentioned cyclohexanone exhaust gas processing device, optionally, the primary heater is heated using shell-and-tube steam
Device, tube side are cyclohexanone exhaust gas channel, 200 DEG C of design temperature, design pressure 1.1MPaG；Shell side is steam channel, design temperature
200 DEG C, design pressure 1.0MPaG.
According to above-mentioned cyclohexanone exhaust gas processing device, optionally, the secondary heater is heated using shell-and-tube steam
Device, tube side are expansion exhaust gas channel, 350 DEG C of design temperature, design pressure 10kPaG；Shell side is steam channel, design temperature 350
DEG C, design pressure 9.0MPaG.
According to above-mentioned cyclohexanone exhaust gas processing device, optionally, the primary heater, secondary heater are added using electricity
Hot device, electric heating tube uses triangular form connection, 350 DEG C of design temperature, design pressure 10kPaG in electric heater.
According to above-mentioned cyclohexanone exhaust gas processing device, it is preferable that be filled with honeycomb in the oxidation reactor
Or the catalyst for being coated with platinum or palladium that ceramic honey comb is carrier.
The present invention also provides a kind of exhaust gas treating method of any of the above-described cyclohexanone exhaust gas processing device, the tails
Gas disposal method includes the following steps：
(A1) pending cyclohexanone tail gas enters expanding machine after primary heater heats；
(A2) the cyclohexanone tail gas after heating enters expander decompression cooling, while generator utilizes the expanding machine
The energy of output generates electricity；
(A3) expansion tail gas enters oxidation reactor after secondary heater heats；
(A4) carbon monoxide and volatile organic matter the generation oxidation reaction expanded in tail gas is converted into carbon dioxide and water
As purified gas, oxidation reactor is discharged in the purified gas.
According to above-mentioned cyclohexanone exhaust gas treating method, it is preferable that the exhaust gas treating method is further comprising the steps of：
(B1) purified gas is discharged with expanding machine expansion tail gas, pending cyclohexanone tail gas heat exchange heel row are put.
According to above-mentioned cyclohexanone exhaust gas treating method, it is preferable that primary heater is by pending cyclohexanone tail gas heating
Enter expanding machine after to 130~180 DEG C.
According to above-mentioned cyclohexanone exhaust gas treating method, it is preferable that secondary heater heating expansion tail gas so that oxidation is anti-
It is 200~650 DEG C to answer device reaction temperature.
Compared with prior art, the device have the advantages that being：
1, expanding machine is exported high pressure cyclohexanone tail gas expansion decompression by expanding machine by the present invention using generator simultaneously
Energy power generation, and the expansion tail gas after catalysis oxidation expansion decompression ensures ring to remove volatile organic matter and carbon monoxide
Hexanone tail gas qualified discharge.
2, the configuration of the present invention is simple, organic matter component content fluctuation is not influenced in by tail gas, safe and stable operation.
3, the present invention can high efficiente callback high pressure cyclohexanone tail gas pressure energy and tail gas in the thermal energy that is rich in of comhustible component,
Organic efficiency is high, good in economic efficiency.
4, purified gas and the expansion tail gas of expanding machine discharge, pending cyclohexanone tail gas heat exchange heel row are put, and are further carried
High heat utilization rate, additional income.
Description of the drawings
Fig. 1 is the structural schematic diagram of the cyclohexanone exhaust gas processing device of the embodiment of the present invention 1.
Specific implementation mode
Fig. 1 and following description describe the present invention optional embodiment with instruct those skilled in the art how to implement and
Reproduce the present invention.In order to instruct technical solution of the present invention, some conventional aspects are simplified or have been omitted.Those skilled in the art answer
The understanding is originated from the modification of these embodiments or replacement will within the scope of the invention.Under those skilled in the art should understand that
Stating feature can combine in various ways to form multiple modifications of the present invention.As a result, the invention is not limited in it is following can be real
Mode is applied, and is only limited by the claims and their equivalents.
Embodiment 1
Fig. 1 schematically illustrates the structure diagram of the cyclohexanone exhaust gas processing device of the present embodiment, as shown in Figure 1, institute
Stating cyclohexanone exhaust gas processing device includes：
First Heat Exchanger 1, the First Heat Exchanger includes cyclohexanone exhaust gas channel and purified gas channel, for cyclohexanone tail gas
Heat exchange is carried out with purified gas；
Primary heater 2, the entrance of the primary heater connect the outlet of the cyclohexanone exhaust gas channel；
Expansion power generation unit 3, the expansion power generation unit include expanding machine and generator, the expanding machine connection described the
The outlet of one heater, generator are generated electricity using the energy of expanding machine output；
Second heat exchanger 4, second heat exchanger includes expansion exhaust gas channel and purified gas channel, for expansion tail gas and only
Change gas and carry out heat exchange, the entrance of the expansion exhaust gas channel connects the outlet of the expanding machine；
Secondary heater 5, the entrance of the secondary heater connect the outlet of the expansion exhaust gas channel；
Oxidation reactor 6, the entrance of the oxidation reactor connect the outlet of the secondary heater, oxidation reactor
Outlet connects the entrance in the purified gas channel of second heat exchanger, described in the outlet connection in the purified gas channel of the second heat exchanger
The entrance in the purified gas channel of First Heat Exchanger.
The present embodiment also provides the exhaust gas treating method of above-mentioned cyclohexanone exhaust gas processing device, the exhaust gas treating method packet
Include following steps：
(A1) pending cyclohexanone tail gas enters primary heater after First Heat Exchanger and purified gas heat exchange heating and heats；
(A2) the cyclohexanone tail gas after heating enters expander decompression cooling, while generator utilizes the expanding machine
The energy of output generates electricity；
(A3) expansion tail gas enters secondary heater after the second heat exchanger and purified gas heat exchange heating and heats；
(A4) the expansion tail gas after heating enters oxygen reactor, expands carbon monoxide and volatile organic matter in tail gas
Oxidation reaction occurs and is converted into carbon dioxide and water as purified gas；
(A5) purified gas is discharged oxidation reactor and is discharged into air after the second heat exchanger, First Heat Exchanger heat exchange.
The pending cyclohexanone tail gas pressure is 1.0~1.08MPaG, 5~15 DEG C of exhaust temperature.
To improve the working efficiency of expanding machine, therefore：
Further, primary heater by pending cyclohexanone tail gas heating to entering expanding machine, warp after 130~180 DEG C
After expander decompression, pressure is down to 50kPaG hereinafter, temperature is reduced to 0~50 DEG C.
To improve catalytic reaction conversion ratio, therefore：
Further, secondary heater heating expansion tail gas so that oxidation reactor reaction temperature is 200~650 DEG C.
Advantage of this embodiment is that：Catalysis oxidation recycles thermal energy, apparatus structure letter after cyclohexanone tail gas elder generation expansion power generation
It is single, expansion power generation unit safety and stability, high-efficiency operation, the limit that organic constituents content is not floated substantially in by cyclohexanone tail gas
System, is not influenced by catalytic oxidation, and organic efficiency is high, good in economic efficiency, tail gas cleaning discharge.
Embodiment 2
The cyclohexanone exhaust gas processing device of the embodiment of the present invention 1 answering in certain cyclohexane oxidation process production cyclohexanone enterprise
With.
In the application examples, the cyclohexanone exhaust flow of the alcohol ketone absorption tower tower top discharge of the Cyclohexanone Production enterprise is
13000Nm3/ h, pressure 1.08MPaG, temperature are 7~9 DEG C, and gas component is specific as follows in tail gas：
| Gas component | Parameter |
| N2 | 97.1V% |
| O2 | 2~3V% |
| CO2、CO | <0.1V% |
| Total amount of organic | 2000~10000mg/Nm3, 4000~20000ppm |
| Propane | ≤400mg/Nm3 |
In the application examples, the design of cyclohexanone exhaust gas processing device is as follows：
It is cyclohexanone exhaust gas channel, 100 DEG C of design temperature, design that First Heat Exchanger, which uses fin-tube heat exchanger, tube side,
Pressure 1.1MPaG；Shell side is purified gas channel, 150 DEG C of design temperature, design pressure：10kPaG, finned tube 5~25mm of wing height,
0.8~1.5mm of fin thickness, 2~10mm of spacing of fin.It is that expansion tail gas is logical that second heat exchanger, which uses plate heat exchanger, interior journey,
Road, 350 DEG C of design temperature, design pressure 10.0kPaG；Outer journey is purified gas channel, 650 DEG C of design temperature, design pressure
10kPaG.It is cyclohexanone exhaust gas channel, 200 DEG C of design temperature, design that primary heater, which uses shell and tube steam heater, tube side,
Pressure 1.1MPaG；Shell side is steam channel, 200 DEG C of design temperature, design pressure 1.0MPaG.Secondary heater uses shell-and-tube
Steam heater, tube side are expansion exhaust gas channel, 350 DEG C of design temperature, design pressure 10kPaG；Shell side is steam channel, if
Count 350 DEG C of temperature, design pressure 9.0MPaG.Certainly, primary heater, secondary heater can also use electric heater, if
Electric heater, then electric heating tube is using triangular form connection, 350 DEG C of design temperature, design pressure 10kPaG.Oxidation reactor uses
Fixed-bed structure, 650 DEG C, design pressure 10kPaG of design temperature, catalyst are 5000~40000h using air speed-1。
Cyclohexanone exhaust gas treating method is as follows：
S1.7~9 DEG C, 1.08MPaG high pressure cyclohexanone tail gas exchange heat through First Heat Exchanger, be warming up to 40~60 DEG C it is laggard
Enter primary heater and is heated to 150 DEG C；
S2.150 DEG C of cyclohexanone tail gas enters expander and is decompressed to 0.05MPaG, is cooled to 5~10 DEG C, drives simultaneously
Dynamic electrical power generators；
S3. expansion tail gas and the second heat exchanger after desuperheat are depressurized to exchange heat to 280~300 DEG C, and is added through secondary heater
Heat is to entering oxidation reactor after 300~350 DEG C；
S4. the organic matter in tail gas (propane, butane, pentane, hexamethylene, cyclohexanone and cyclohexanol etc.) and carbon monoxide exist
It is converted into carbon dioxide and water in oxidation reactor, becomes 350~650 DEG C of high temperature purification gas,
S5. high temperature purification gas discharges after the second heat exchanger, First Heat Exchanger heat exchange recycling heat, and delivery temperature 50~
250℃。
Cyclohexanone exhaust gas processing device can generate the electricity of 650kW per hour, the content of organics in tail gas in the application example
30ppm is reduced to hereinafter, purified tail gas can be discharged directly to the atmosphere.
Claims (10)
1. a kind of cyclohexanone exhaust gas processing device, it is characterised in that：The cyclohexanone exhaust gas processing device includes：
Primary heater, pending cyclohexanone tail gas enter expanding machine after primary heater heating；
Expansion power generation unit, the expansion power generation unit include expanding machine and generator, and the expanding machine connection described first adds
The outlet of hot device, generator are generated electricity using the energy of expanding machine output；
Secondary heater, expansion tail gas enter oxidation reactor after secondary heater heats；
Oxidation reactor expands carbon monoxide and volatile organic matter in tail gas and oxidation occurs in the oxidation reactor instead
Carbon dioxide and water, which should be converted into, becomes purified gas.
2. cyclohexanone exhaust gas processing device according to claim 1, it is characterised in that：The cyclohexanone exhaust gas processing device
Further include：
First Heat Exchanger, the First Heat Exchanger are located at the upstream of the primary heater, including cyclohexanone exhaust gas channel and net
Change gas channel, heat exchange is carried out for pending cyclohexanone tail gas and purified gas；The outlet of the cyclohexanone exhaust gas channel connects institute
State the entrance of primary heater.
3. cyclohexanone exhaust gas processing device according to claim 2, it is characterised in that：The cyclohexanone exhaust gas processing device
Further include：
Second heat exchanger, on the flow path that second heat exchanger is arranged between expanding machine and secondary heater, including expansion tail
Gas channel and purified gas channel carry out heat exchange for expansion tail gas and purified gas；The entrance of the expansion exhaust gas channel connects institute
The outlet for stating expanding machine, the outlet for expanding exhaust gas channel connect the entrance of the secondary heater；The outlet of oxidation reactor connects
Connect the purified gas channel of the First Heat Exchanger or the purified gas channel of the second heat exchanger, the purified gas channel of First Heat Exchanger and
The purified gas channel of second heat exchanger is connected.
4. cyclohexanone exhaust gas processing device according to claim 3, it is characterised in that：The First Heat Exchanger changes for tubular type
Hot device, tube side are cyclohexanone exhaust gas channel, and shell side is purified gas channel.
5. cyclohexanone exhaust gas processing device according to claim 3, it is characterised in that：Second heat exchanger is board-like changes
Hot device, interior journey are expansion exhaust gas channel, and outer journey is purified gas channel.
6. cyclohexanone exhaust gas processing device according to claim 3, it is characterised in that：The primary heater, second add
Hot device is shell and tube steam heater or electric heater.
7. cyclohexanone exhaust gas processing device according to claim 1, it is characterised in that：It is filled in the oxidation reactor
Using honeycomb or ceramic honey comb as the catalyst for being coated with platinum or palladium of carrier.
8. the exhaust gas treating method of any cyclohexanone exhaust gas processing devices of claim 1-7, it is characterised in that：The tail
Gas disposal method includes the following steps：
(A1) pending cyclohexanone tail gas enters expanding machine after primary heater heats；
(A2) the cyclohexanone tail gas after heating enters expander decompression cooling, while generator is exported using the expanding machine
Energy power generation；
(A3) expansion tail gas enters oxidation reactor after secondary heater heats；
(A4) carbon monoxide in expansion tail gas and volatile organic matter generation oxidation reaction are converted into carbon dioxide and water and become
Oxidation reactor is discharged in purified gas, the purified gas.
9. cyclohexanone exhaust gas treating method according to claim 8, it is characterised in that：The exhaust gas treating method further includes
Following steps：
(B1) purified gas is discharged with expanding machine expansion tail gas, pending cyclohexanone tail gas heat exchange heel row are put.
10. cyclohexanone exhaust gas treating method according to claim 9, it is characterised in that：Primary heater is by pending ring
Hexanone tail gas heating is to entering expanding machine after 130~180 DEG C.
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Cited By (2)
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|---|---|---|---|---|
| CN110354542A (en) * | 2019-07-18 | 2019-10-22 | 广东诚铭化工科技有限公司 | A kind of carboxylic styrene butadiene latex degasser and method |
| CN112762466A (en) * | 2020-12-21 | 2021-05-07 | 襄阳航力机电技术发展有限公司 | Cyclohexane oxidation tail gas treatment method and device |
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