CN208553190U - A kind of device being recycled the oil gas containing styrene - Google Patents
A kind of device being recycled the oil gas containing styrene Download PDFInfo
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- CN208553190U CN208553190U CN201820294861.9U CN201820294861U CN208553190U CN 208553190 U CN208553190 U CN 208553190U CN 201820294861 U CN201820294861 U CN 201820294861U CN 208553190 U CN208553190 U CN 208553190U
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Abstract
The utility model provides a kind of device for being recycled the oil gas containing styrene, including sequentially connected oil gas storage tank, deep condensation system, and is connected to the lime set collection device and gas discharging apparatus at deep condensation system rear；Condensation casing is equipped on pipeline between the oil gas storage tank and the deep condensation system.A kind of device of recovery processing oil gas containing styrene of the utility model, can be realized the recycling to styrene, and improve the stability and safety of recycling and processing device, save the operating cost of recycling and processing device.
Description
Technical field
It can be used in recovery processing the utility model relates to a kind of recycling and processing device more particularly to one kind and contain easy autohemagglutination
The device of styrene oil gas.
Background technique
Petroleum vapor recovery facility is important one of the safety and environmental protection facility of petrochemical enterprise, to process for producing device with
The toxic and harmful gas that auxiliary equipment (such as tank field, loading-unloading vehicle, shipment) is discharged under normal production scenarios, thus around protecting
Relevant device, facility and the safety of personnel.
In the governance process of oil-containing exhaust gas, usual oil gas is inhaled by oil gas storage tank collection, mechanical considerations, separation, reaction
It receives to carry out recycling and qualified discharge.In this section of tube side, the temperature of oil gas is usually 30 from oil gas storage tank to mechanical considerations
~40 DEG C, however due to containing styrene, styrene Yi Ziju in pipeline in oil gas, and add as temperature increases autohemagglutination
Greatly, the styrene of a large amount of autohemagglutinations causes to block in pipeline, be easy to cause the resistance of ducting excessive, can explode when serious, from
And cause serious security risk.Relevant accident has 2014 on August 5, certain company's ABS device raw material tank field styrene storage tank
Physical explosion accident occurs for V-103B.
In order to avoid the generation of such safety accident, the prior art usually increases heat exchanger after oil gas storage tank, makes oil gas
Oil gas temperature is delivered to mechanical considerations system lower than 18 DEG C again after heat exchange, to reduce the temperature of oil gas in pipeline, avoids benzene second
Alkene in pipeline a large amount of autohemagglutinations and cause safety accident；Oil gas after mechanical considerations system condensing, can reuse part recycled
Use, can not reuse part handled after qualified discharge.However, the technique of this traditional recovery processing oil gas containing styrene
It has the following deficiencies:
1. oil gas containing styrene from heat exchanger into this section of pipeline of mechanical considerations system, if the cold insulation quilt of this section of pipeline
It destroys, Cold-keeping Layer is detached from, and cold insulation failure, then the temperature of oil gas can go up outdoor temperature again in pipeline, still have line clogging
And the hidden danger of explosion；In addition, if blocking or other failures occur for heat exchanger, heat exchanger failure is caused, then oil gas in pipeline
Temperature can go up outdoor temperature again, equally have the hidden danger of the blocking of pipeline superpressure and explosion.
2. mechanical considerations, which refer to, is first cooled to 4~6 DEG C (can adjust according to different material) through level-one cooling cylinder, it is condensed out
Partial material and water are cooled to -25 DEG C subsequently into B-grade condensation case, then a part of material are precipitated, and enter back into three-level condensation
Case is cooled to -75 DEG C by gradient, and a part of material is further precipitated, and so far about 99% or more material component is separated,
The oil-poor gas of low temperature after isolating material successively returns to first order cooling cylinder again, regenerator carries out backheat exchange, temperature recovery
To 10 DEG C or so (so far, completing the cold recovery utilization of gas circuit), it is discharged through fire arrester.However, mechanical considerations need to compress
To complete the condensation to oil gas, dynamic equipment influences entirely to condense the dynamic equipment such as machine, vacuum pump in view of the problems such as maintenance rapid wear
System stability and safety, and dynamic equipment uses power drive, the energy consumption power consumption of condenser system is increased, to increase
Operating cost cost.
Utility model content
The technical problem to be solved by the utility model is in view of the drawbacks of the prior art, providing a kind of be recycled and containing
The device of styrene oil gas can be realized the recycling to styrene, and improve recycling and processing device stability and
The operating cost of recycling and processing device has been saved in safety.
The utility model uses following technical scheme to solve above-mentioned technical problem:
A kind of device being recycled the oil gas containing styrene, including sequentially connected oil gas storage tank, deep condensation system, with
And it is connected to the lime set collection device and gas discharging apparatus at deep condensation system rear；
Condensation casing is equipped on pipeline between the oil gas storage tank and the deep condensation system.
In order to further optimize the above technical scheme, the technical measures that the utility model is taken further include:
Further, the deep condensation system includes forecooler and liquid nitrogen unit, wherein the forecooler and liquid nitrogen list
It is connected between member by the second process gas conveyance conduit；And the forecooler is by the first process gas conveyance conduit with before
The oil gas storage tank connection of side, the liquid nitrogen unit are connected by third process gas conveyance conduit and the gas discharging apparatus at rear
It connects；Lime set collection device is connect by condensate recovery channel with the liquid nitrogen unit, for collecting deep condensation system point
From obtained condensate liquid.
Further, the condenser jacket pipe sleeve is set to the pipeline between the oil gas storage tank and the deep condensation system
On, the outer layer of the condensation casing is connected with chilled brine with cooling for pipeline, and temperature is at 18 DEG C hereinafter, with true in control piper
Protect oil-gas pipeline in styrene will not superpressure autohemagglutination, cause explosion.
Further, the liquid nitrogen unit includes liquid nitrogen deep condenser A and liquid nitrogen deep condenser B.
Further, the liquid nitrogen deep condenser A and liquid nitrogen deep condenser B the using and the reserved alternate run, liquid nitrogen from
Liquid nitrogen conveyance conduit each leads into liquid nitrogen deep condenser A and liquid nitrogen deep condenser B, to complete automatic defrosting.
Or optionally, the liquid nitrogen deep condenser A and liquid nitrogen deep condenser B are connected in series operation, and nitrogen is from the
One nitrogen gas delivery-line each leads into liquid nitrogen deep condenser A and liquid nitrogen deep condenser B, to complete manual defrost.
Further, lime set collection device by condensate recovery channel respectively with the liquid nitrogen deep condenser A and
Liquid nitrogen deep condenser B connection, for collecting the isolated condensation of liquid nitrogen cryogenic condenser A and liquid nitrogen deep condenser B
Liquid.
Further, liquid nitrogen feeding mechanism is separately connected liquid nitrogen deep condenser A by liquid nitrogen conveyance conduit and liquid nitrogen is deep
Cool condenser B, liquid nitrogen flow into liquid nitrogen cryogenic condenser A and liquid nitrogen deep condenser B from liquid nitrogen feeding mechanism, and liquid nitrogen gasification is to mention
Semen donors, for being cooled down and being condensed to oil gas.
Further, liquid nitrogen deep condenser A and liquid nitrogen deep condenser B pass through the second nitrogen gas delivery-line and institute respectively
Forecooler connection is stated, the forecooler connects air-bathing gasifier, to rise again for nitrogen；Air-bathing gasifier connects with valve group again
It connects, to make it into Nitrogen pipe network reuse for adjusting nitrogen pressure.
Further, the first process gas conveyance conduit, the second process gas conveyance conduit and third process gas
Valve is provided on conveyance conduit, for controlling the gas stream for entering liquid nitrogen deep condenser A and liquid nitrogen deep condenser B
Amount.
Further, TIC temperature control equipment, the TIC temperature are connected on the third process gas conveyance conduit
It spends control device and the valve interlocks.
Further, the lime set collection device is lime set collecting tank.
The utility model is had the following technical effect that compared with prior art using above technical scheme
1) device of a kind of recovery processing oil gas containing styrene of the utility model, in oil gas storage tank and deep condensation system
Between pipeline on be provided with condensation casing, condensation casing cools down pipeline, is carried out relative to traditional using heat exchanger
Cooling, operation is simpler, safety is higher.
2) device of a kind of recovery processing oil gas containing styrene of the utility model utilizes liquid nitrogen by deep condensation system
Cryogenic energy, so that oil gas is cooled to liquid phase from gas phase, to achieve the purpose that Recovery Purifying oil gas, realize to styrene
It recycles, improves resource utilization.
3) device of a kind of recovery processing oil gas containing styrene of the utility model replaces tradition using deep condensation system
Mechanical considerations system, use liquid nitrogen as cold source, whole device is greatly reduced without electrical equipment, power consumption, relative to mechanical cold
Solidifying system is more energy saving, and avoids the Maintenance and Repair to electrical equipment, keeps condenser system more stable, safe.
4) device of a kind of recovery processing oil gas containing styrene of the utility model uses two liquid nitrogen depths in liquid nitrogen unit
Cool condenser, with the mode alternating frosting-automatic defrosting operation of " the using and the reserved ", liquid nitrogen unit " the using and the reserved " mode is adapted to
The continuous processing demand of system；Or by valve transfer to two liquid nitrogen deep condenser series operations, can be passed through nitrogen into
The manual defrost of row, it is ensured that system is not influenced by frosting, stifled etc., keeps technique more unimpeded.
Detailed description of the invention
Fig. 1 is a kind of process flow diagram of recovery processing oil gas containing styrene of the utility model；
Fig. 2 is a kind of process flow diagram of deep condensation system in Fig. 1；
Appended drawing reference therein are as follows: 1- oil gas containing styrene；2- oil gas storage tank；3- deep condensation system；4- condenses casing；
5- lime set collection device；6- gas discharging apparatus；7- forecooler；8- liquid nitrogen unit；9- liquid nitrogen deep condenser A；10- liquid nitrogen is deep
Cool condenser B；11- liquid nitrogen feeding mechanism；12- air-bathing gasifier；L11- the first process gas conveyance conduit；The second work of L12-
Skill gas transmission pipeline: L13- third process gas conveyance conduit；L3- condensate recovery channel；L4- liquid nitrogen conveyance conduit；
The first nitrogen gas delivery-line of L51-；The second nitrogen gas delivery-line of L52-.
Specific embodiment
The technical solution of the utility model is described in further detail with reference to the accompanying drawing.
In the preferred embodiment of the utility model, it is based on the above-mentioned problems in the prior art, a kind of return now is provided
The device of processing oil gas containing styrene is received, which includes sequentially connected oil gas storage tank 2 as shown in figure 1, deep condensation system
3, and it is connected to the lime set collection device 5 and gas discharging apparatus 6 at 3 rear of deep condensation system；In oil gas storage tank 2 and depth
Pipeline between condenser system 3 is equipped with condensation casing 4.Oil gas containing styrene 1 is collected through oil gas storage tank 2, is sent to deep condensation
System 3 condensed after can reuse part carry out recycling use, can not reuse part handled after qualified discharge.Wherein, it is arranged
Condensation casing 4 on pipeline between oil gas storage tank 2 and deep condensation system 3 is used to cool down the oil gas in pipeline,
Avoid from oil gas storage tank 2 to this section of pipeline of deep condensation system 3 due to oil gas temperature a large amount of autohemagglutinations in pipeline compared with high-phenylethylene
And cause safety accident.
It is connected with chilled brine in condensation casing 4 with cooling for pipeline, and temperature interlocked control is set, pipeline is worked as in setting
Middle oil gas temperature then cuts off this section of pipeline when being higher than 25 DEG C, and (this section of pipeline refers to the pipe between oil gas storage tank 2 and deep condensation system 3
Road)；Setting when in pipeline oil gas temperature lower than 25 DEG C but be higher than 18 DEG C when then sound an alarm；It is low that oil gas temperature in pipeline is worked as in setting
Pipeline normally conveys oil gas containing styrene 1 to deep condensation system 3 when 18 DEG C.
The utility model uses condensation 4 generation of casing using the device of recovery processing oil gas containing styrene of above-described embodiment
For traditional plate heat exchanger, condense and pipeline cooled down between casing 4, can be to avoid being destroyed because of pipeline cold insulation caused by
Cold insulation failure or because oil gas cooling failure caused by plate heat exchanger failure causes pipeline superpressure to block or the safe thing of explosion
Therefore；Meanwhile condensing casing 4 and being cooled down using chilled brine, relative to plate heat exchanger, operate more easy, safety
It is higher.
In the further embodiment of utility model, as shown in Fig. 2, deep condensation system 3 includes forecooler 7 and liquid nitrogen unit
8, wherein the second process gas conveyance conduit L12 is connected between forecooler 7 and liquid nitrogen unit 8；Forecooler 7 passes through the first work
Skill gas transmission pipeline L11 and the oil gas storage tank in front 2 connect, and condensation casing 4 is sheathed on the first process gas conveyance conduit L11
On, liquid nitrogen unit 8 is connected by third process gas conveyance conduit L3 and the gas discharging apparatus 6 at rear；Lime set collection device 5
It is connected by condensate recovery channel L3 and liquid nitrogen unit 8, for collecting the isolated condensate liquid of deep condensation system 3.
Oil gas containing styrene enters forecooler 7 from process gas conveyance conduit L11, enters liquid nitrogen unit 8 after the tentatively pre-cooling of pre-cooled device 7
It is further cooled down, liquid nitrogen unit 8 uses liquid nitrogen deep condensation, and liquid nitrogen deep condensation refers to that petroleum vapor recovery technique is to utilize liquid
The cryogenic energy of nitrogen makes oil gas steam from vapor condensation at liquid phase, to achieve the purpose that purification, recycling oil gas.
In the further embodiment of utility model, liquid nitrogen unit 8 includes that liquid nitrogen deep condenser A9 and liquid nitrogen deep condense
Device B 10.It can be, the condensation of 10 alternate run of liquid nitrogen deep condenser A9 and liquid nitrogen deep condenser B, specially liquid nitrogen deep
Device A9 and liquid nitrogen deep condenser B 10 replaces frosting-automatic defrosting with the mode of " the using and the reserved ", that is, when liquid nitrogen deep condenses
Device A liquid nitrogen deep condenser B (first run is frostless) in deep cooling does defrost processing, the liquid nitrogen when liquid nitrogen deep condenser B is in deep cooling
Cryogenic condenser A does defrost processing, and the mode for being somebody's turn to do " the using and the reserved " can make liquid nitrogen unit 8 adapt to deep condensation system 3 continuously
The demand of processing；Or it is also possible to 10 series operation of liquid nitrogen deep condenser A9 and liquid nitrogen deep condenser B.It can be by logical
Enter nitrogen and carry out manual defrost, it is ensured that deep condensation system 3 is not influenced by frosting, stifled etc., keeps technique more unimpeded；Liquid nitrogen deep
Two kinds of operational modes of condenser A9 and liquid nitrogen deep condenser B 10 are (that is, the using and the reserved alternate run mode and series operation
Mode) switching can pass through adjust connecting line on valve realize.
Wherein, the second process gas conveyance conduit is split into two pipelines before liquid nitrogen unit, two made of shunting
Pipeline is separately connected liquid nitrogen deep condenser A 9 and liquid nitrogen deep condenser B 10, is equipped with control valve on pipeline.Second containing benzene
Alkene oil gas 1 by the second process gas conveyance conduit L12 enter liquid nitrogen deep condenser A 9, liquid nitrogen deep condenser B 10 into
The further deep cooling of row, the fixed gas condensed through liquid nitrogen deep (i.e. the oil-poor gas of low temperature) enter subsequent processing unit, fill
Divide the recycling realized to cooling capacity, has saved the liquid nitrogen consumption of system, improved resource utilization.
In the further embodiment of utility model, lime set collection device 5 by condensate recovery channel L3 respectively with liquid nitrogen
Cryogenic condenser A 9 and liquid nitrogen deep condenser B 10 connection, for collecting liquid nitrogen cryogenic condenser A 9 and liquid nitrogen deep is cold
Condenser B 10 isolated condensate liquid.Lime set collection device 5 is preferably lime set collecting tank, and collection obtains in lime set collecting tank
Condensate liquid may be recovered utilization, improve resource utilization.
In the further embodiment of utility model, liquid nitrogen feeding mechanism 11 is separately connected liquid nitrogen by liquid nitrogen conveyance conduit L4
Cryogenic condenser B 10 and liquid nitrogen deep condenser A 9, liquid nitrogen flow into liquid nitrogen cryogenic condenser B 10 from liquid nitrogen feeding mechanism 11
With liquid nitrogen deep condenser A 9, liquid nitrogen gasification is to provide cooling capacity, for being cooled down and being condensed to oil gas.The utility model is adopted
Liquid nitrogen is used to be not concerned about dynamic equipment damage repair and maintenance etc. relative to mechanical considerations as the cold source of condenser, to improve whole
The stability and safety of a condenser system.
In the further embodiment of utility model, the liquid nitrogen conveyance conduit L4 of liquid nitrogen feeding mechanism 11 is connected to liquid nitrogen deep
The top of condenser A 9 and liquid nitrogen deep condenser B 10, liquid nitrogen is from liquid nitrogen deep condenser A 9 and liquid nitrogen deep condenser B
10 top enters；It realizes the flowing in the duct of liquid nitrogen using elevation pressure difference, and improves the cooling efficiency of liquid nitrogen.
Further, liquid nitrogen deep condenser A 9 and liquid nitrogen deep condenser B 10 passes through the second nitrogen gas delivery-line L52 and forecooler
7 connections, forecooler 7 is connect with air-bathing gasifier 12, to rise again for nitrogen；Air-bathing gasifier 12 is connect with valve group again,
To make it into Nitrogen pipe network reuse for adjusting nitrogen pressure；Since the nitrogen after liquid nitrogen gasification is not contaminated and has
Pressure, nitrogen are risen again by air-bathing gasifier 12 to environment temperature, adjust pressure to slightly above Nitrogen pipe network using valve group
Pressure (1.5MPa) can enter Nitrogen pipe network reuse, save energy consumption, reduced operating cost, keep whole device more economical
It is applicable in.
In the further embodiment of utility model, the first process gas conveyance conduit L11, the second process gas conveyance conduit
It is provided with valve on L12 and third process gas conveyance conduit L13, to enter liquid nitrogen deep condenser A9 and liquid for controlling
The oil gas flow of nitrogen cryogenic condenser B 10, it is ensured that the flow for entering each condenser is no more than its design value, improves depth
The operation stability of condenser system 3 and safety.
In the further embodiment of utility model, the control of TIC temperature is connected on third process gas conveyance conduit L13
Device, TIC temperature control equipment and valve interlock.TIC temperature control equipment is for monitoring oil gas temperature in pipeline, when in pipeline
When oil gas temperature is higher, control valve is to reduce oil gas flow in pipeline, so that system runs safer stabilization.
In the further embodiment of utility model, lime set collection device 5 is lime set collecting tank.
The working process of the utility model is as follows: oil gas containing styrene 1 is after the collection of oil gas storage tank 2, into deep condensation
System 3 is condensed, and the condensate liquid condensed enters the recycling of lime set collecting tank, and deep condensation system 3 is isolated
The oil-poor gas of low temperature qualified discharge after vent gas treatment.
Embodiment 1:
In tank field durings Big and Small Breath, loading-unloading vehicle, shipment etc., recovery processing oil gas containing styrene of the utility model
Device can be used for the styrene environment protection treating project that oil gas volatilization comes out, and transporting from oil gas storage tank to condenser system pipeline can adopt
It is cooled down with cooling collar, cooling collar is sheathed on pipeline, and the outer layer of cooling collar is passed through chilled brine, temperature in control pipe
Spend at 18 DEG C hereinafter, with ensure styrene in oil-gas pipeline will not superpressure autohemagglutination, can be safely sent into deep condensation system
System carry out condensation reuse, can not reuse part reaction after qualified discharge.
Embodiment 2:
When conveying using styrene as the chemical plant installations pipeline of medium, contain styrene using the recovery processing of the utility model
The device of oil gas, is sheathed on feed-line using cooling collar, and the outer layer of cooling collar is passed through chilled brine, can prevent pipe
Styrene autohemagglutination in road and block pipeline, while can also prevent it from locally carrying out autohemagglutination and volatilizing styrene more than its is quick-fried
Fried lower limit, causes safety accident.
As can be seen from the above embodiments, the utility model provides a kind of device for being recycled the oil gas containing styrene, in oil gas
Condensation casing is provided on pipeline between storage tank and deep condensation system, condensation casing cools down pipeline, relative to biography
System is cooled down using heat exchanger, and operation is simpler, safety is higher；The low temperature of liquid nitrogen is utilized by deep condensation system
Energy makes oil gas be cooled to liquid phase from gas phase, to achieve the purpose that Recovery Purifying oil gas, realizes the recycling benefit to styrene
With improving resource utilization；Traditional mechanical considerations system is replaced using deep condensation system, uses liquid nitrogen as cold source,
Whole device is greatly reduced without electrical equipment, power consumption, more energy saving relative to mechanical considerations system, and avoids and set to electronic
Standby Maintenance and Repair keep condenser system more stable, safe；Using cooling capacity Integrated design, the liquid of inertia protection is made full use of
The cooling capacity of nitrogen guarantees that the consumption of vent gas treatment liquid nitrogen is minimum, saves operating cost, and economic benefit is obvious.
Specific embodiment of the utility model is described in detail above, but it is only used as example, the utility model
It is not restricted to particular embodiments described above.To those skilled in the art, any that this practical is equal
Modifications and substitutions are also all among the scope of the utility model.Therefore, the institute under the spirit and scope for not departing from the utility model
The equal transformation and modification of work, should all cover in the scope of the utility model.
Claims (10)
1. a kind of device for being recycled the oil gas containing styrene, which is characterized in that including sequentially connected oil gas storage tank (2), deeply
It spends condenser system (3), and is connected to the lime set collection device (5) and gas discharge dress at deep condensation system (3) rear
Set (6)；Condensation casing (4) is equipped on pipeline between the oil gas storage tank (2) and the deep condensation system (3).
2. a kind of device for being recycled the oil gas containing styrene according to claim 1, which is characterized in that the depth is cold
Solidifying system (3) include forecooler (7) and liquid nitrogen unit (8), wherein pass through the between the forecooler (7) and liquid nitrogen unit (8)
The connection of two process gas conveyance conduits (L12)；And the forecooler (7) by the first process gas conveyance conduit (L11) with
The oil gas storage tank (2) in front connects, and the liquid nitrogen unit (8) passes through the gas of third process gas conveyance conduit (L13) and rear
Body tapping equipment (6) connection；Lime set collection device (5) is connect by condensate recovery channel (L3) with the liquid nitrogen unit (8),
For collecting the isolated condensate liquid of deep condensation system (3).
3. a kind of device for being recycled the oil gas containing styrene according to claim 2, which is characterized in that the liquid nitrogen list
First (8) include liquid nitrogen deep condenser A (9) and liquid nitrogen deep condenser B (10).
4. a kind of device for being recycled the oil gas containing styrene according to claim 3, which is characterized in that the liquid nitrogen is deep
Cool condenser A (9) and liquid nitrogen deep condenser B (10) the using and the reserved alternate run.
5. a kind of device for being recycled the oil gas containing styrene according to claim 3, which is characterized in that the liquid nitrogen is deep
Operation is connected in series in cool condenser A (9) and liquid nitrogen deep condenser B (10).
6. a kind of device for being recycled the oil gas containing styrene according to claim 3, which is characterized in that lime set collects dress
Set (5) by condensate recovery channel (L3) respectively with the liquid nitrogen deep condenser A (9) and liquid nitrogen deep condenser B (10)
Connection.
7. a kind of device for being recycled the oil gas containing styrene according to claim 3, which is characterized in that liquid nitrogen supply dress
It sets (11) and the liquid nitrogen deep condenser A (9) and liquid nitrogen deep condenser B is separately connected by liquid nitrogen conveyance conduit (L4)
(10)。
8. a kind of device for being recycled the oil gas containing styrene according to claim 3, which is characterized in that liquid nitrogen deep is cold
Condenser A (9) and liquid nitrogen deep condenser B (10) is connected by the second nitrogen gas delivery-line (L52) and the forecooler (7) respectively
It connects, the forecooler (7) connects air-bathing gasifier (12).
9. a kind of device for being recycled the oil gas containing styrene according to claim 2, which is characterized in that in the third
TIC temperature control equipment is connected on process gas conveyance conduit (L13), the TIC temperature control equipment and setting are first
On process gas conveyance conduit (L11), the second process gas conveyance conduit (L12) and third process gas conveyance conduit (L13)
Valve interlocking.
10. a kind of device for being recycled the oil gas containing styrene according to claim 2, which is characterized in that the condensation
Casing (4) is sheathed on from oil gas storage tank (2) to the pipeline forecooler (7), and the outer layer of condensation casing (4) is connected with cold
Freeze salt water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820294861.9U CN208553190U (en) | 2018-03-02 | 2018-03-02 | A kind of device being recycled the oil gas containing styrene |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820294861.9U CN208553190U (en) | 2018-03-02 | 2018-03-02 | A kind of device being recycled the oil gas containing styrene |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847398A (en) * | 2019-03-21 | 2019-06-07 | 成都华气厚普机电设备股份有限公司 | A kind of liquid nitrogen spraying device for recovering oil and gas and method |
| CN113069789A (en) * | 2021-04-18 | 2021-07-06 | 文长明 | Recovery system and recovery method for gas phase benzene in caprolactam |
-
2018
- 2018-03-02 CN CN201820294861.9U patent/CN208553190U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847398A (en) * | 2019-03-21 | 2019-06-07 | 成都华气厚普机电设备股份有限公司 | A kind of liquid nitrogen spraying device for recovering oil and gas and method |
| CN109847398B (en) * | 2019-03-21 | 2023-08-29 | 厚普清洁能源(集团)股份有限公司 | Liquid nitrogen spraying oil gas recovery device and method |
| CN113069789A (en) * | 2021-04-18 | 2021-07-06 | 文长明 | Recovery system and recovery method for gas phase benzene in caprolactam |
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