CN209685715U - A kind of recycle device of oil field torch gas - Google Patents
A kind of recycle device of oil field torch gas Download PDFInfo
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- CN209685715U CN209685715U CN201920133414.XU CN201920133414U CN209685715U CN 209685715 U CN209685715 U CN 209685715U CN 201920133414 U CN201920133414 U CN 201920133414U CN 209685715 U CN209685715 U CN 209685715U
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Abstract
The utility model discloses a kind of recycle devices of oil field torch gas, comprising: gas-liquid separator, membrane separator, adsorbing separation device, fluid reservoir, jet dynamic control, waste-heat recovery device, pump；Gaseous state torch gas for separating gaseous state and liquid torch gas in torch gas, and is delivered to membrane separator by gas-liquid separator, and liquid torch gas is transported to fluid reservoir storage by pump；Membrane separator is connect with gas-liquid separator, is delivered to adsorbing separation device for separating gaseous state torch gas, and by the torch gas after separation；Adsorbing separation device is connect with membrane separator, for separating the torch gas after membrane separator separates, obtains CH4, and by CH4Jet dynamic control is delivered to generate electricity；Waste-heat recovery device is connect with jet dynamic control, and the heat recovery for generating jet dynamic control is spare.The recyclable device of the oil field torch gas releases flare oil field gas resource utilization, achievees the purpose that energy conservation, emission reduction, synergy.
Description
Technical field
The utility model relates to tail gas recycles in petrochemical industry to utilize technical field, more particularly to a kind of
The recycle device of oil field torch gas.
Background technique
There is natural gas with petroleum symbiosis, coming with petroleum one extraction in oil extraction process, between oil reservoir, i.e., it is oily
Field associated gas or lighter hydrocarbons, main component are methane, ethane, propane, butane, and there are also a small amount of pentanes and the components such as hydrocarbon.By
The case where difference in oil field geographical location, associated gas is also different, is specifically divided into two kinds: one is association tolerance to compare
Greatly, concentration is compared in distribution, by being directly entered pipe network after purified treatment；Another kind is the companion for being distributed more scattered, outlying wellblock
Anger, this part associated gas yield is small, far from conveyance conduit, is limited by many objective condition, cannot directly enter grid
The part low pressure generated in network, extra associated gas and production separates flashed vapour, control valve normal exhaust and process equipment blanket gas
Deng, be discharged into together torch assembly burning.
Currently, each large oilfield in China mostly realizes the recycling of associated gas, and scattered, outlying wellblock is without first
Into recycling technique, and have to the associated gas to be passed through torch burn-up.Estimate according to world energy sources association, in global range
Oil field about has 140,000,000,000 side's associated gases to be discharged into atmosphere by torch assembly burning every year, accounts for European market natural gas demand
25%, 1 year electricity needs of Germany can be met.And in torch gas be rich in light hydrocarbon component, throughout the year burning cause amount of heat with
And CO2、NOXEqual pollutants enter atmosphere, not only cause energy waste, air environmental pollution, but also lighter hydrocarbons warp with higher
Ji value, if obtaining effective recycling, it will create very big economic benefit.
Therefore, the environmentally protective economy of development all is being advocated in the whole world, is coping with today of climate change, how a kind of consumption is provided
It can small, high efficiente callback be scattered and the flare gas recovery of outlying wellblock using device is asking for those skilled in the art's urgent need to resolve
Topic.
Utility model content
In view of this, the present invention provides a kind of less energy-consuming, high efficiente callback is scattered and the torch gas of outlying wellblock returns
It receives and utilizes device.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of recycle device of oil field torch gas, comprising: gas-liquid separator, membrane separator, adsorbing separation device, liquid storage
Tank, jet dynamic control, waste-heat recovery device, pump；
The gas-liquid separator for separating gaseous state and liquid torch gas in torch gas, and gaseous state torch gas is conveyed
To the membrane separator, liquid torch gas is transported to the fluid reservoir by pump and is stored；
The membrane separator is connect with the gas-liquid separator, for separating the gaseous state torch gas, and will be after separation
Torch gas is delivered to the adsorbing separation device；
The adsorbing separation device is connect with the membrane separator, for by by the membrane separator separation after torch gas
It is separated, obtains CH4, and by CH4The jet dynamic control is delivered to generate electricity；
The waste-heat recovery device is connect with the jet dynamic control, the heat for generating the jet dynamic control
Amount recycling is spare.
It further, further include the first compressor, first compressor is arranged in the gas-liquid separator and the film
Between separator, for pressurizeing to the gaseous state torch gas, and the gaseous state torch gas after pressurization is delivered to the membrane separator.
It further, further include that the second compressor is connect with the fluid reservoir, the membrane separator includes the first UF membrane
Device and the second membrane separator, first compressor are connect with the gas-liquid separator, first membrane separator, and described first
Membrane separator is also connect with second membrane separator, and second membrane separator is connect with the adsorbing separation device；
First membrane separator, the second membrane separator, adsorbing separation device are connect with the fluid reservoir, and also and institute
State the connection of the second compressor；
Wherein, it is provided with valve V1, valve V2, valve V5, valve V6 on the first membrane separator of institute, be arranged on second membrane separator
There are valve V3, valve V4, valve V7, valve V8.
Further, the adsorbing separation device includes the first adsorbing separation device and the second adsorbing separation device, first film
Separator, the second membrane separator, the first adsorbing separation device and the second adsorbing separation device are connected with each other；
The first adsorbing separation device and the second adsorbing separation device are connect with the fluid reservoir, and also with described second
Compressor connection；
Wherein, valve V9, valve V10, valve V13, valve V14, second absorption point are provided on the first adsorbing separation device
From being provided with valve V11, valve V12, valve V15, valve V16 on device.
It can be seen via above technical scheme that compared with prior art, the utility model, which discloses, provides a kind of oil field fire
The recycle device of torch gas has following effective effect:
1) the utility model combines the technology of UF membrane and adsorbing separation, for the lighter hydrocarbons recovery of oil field torch gas,
Have the advantages that the rate of recovery is high.
2) tail gas after the utility model recycling lighter hydrocarbons, CH4Purity is high is conducive to the production of jet dynamic control.
3) the utility model membrane separator and adsorbing separation device are all made of separator more than two, ensure that device
Continuous operation and improve separative efficiency and service life of equipment.
4) the utility model carries out purging regeneration to film and adsorbent using the fixed gas on fluid reservoir top, does not need the external world
Regeneration gas is provided, energy consumption and operating cost are saved.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 attached drawing is a kind of structural schematic diagram of the recyclable device of oil field torch gas provided by the utility model.
Wherein, 1- gas-liquid separator, the first compressor of 2-, the first membrane separator of 3-, the second membrane separator of 4-, 5- first inhale
Attached separator, 6- the second adsorbing separation device, 7- jet dynamic control, 8- pump, 9- fluid reservoir, the second compressor of 10-, 11- waste heat
Recyclable device, 12- chimney, 13- heating equipment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model additionally provides a kind of recycle device of oil field torch gas, comprising: gas-liquid separation
Device 1, membrane separator, adsorbing separation device, fluid reservoir 9, jet dynamic control 7, waste-heat recovery device 11, pump 8；
Gaseous state torch gas for separating gaseous state and liquid torch gas in torch gas, and is delivered to film by gas-liquid separator 1
Liquid torch gas is transported to fluid reservoir 9 by pump 8 and stored by separator；
Membrane separator is connect with gas-liquid separator 1, is delivered to for separating gaseous state torch gas, and by the torch gas after separation
Adsorbing separation device；
Adsorbing separation device is connect with membrane separator, for being divided the torch gas after membrane separator separation
From obtaining CH4, and by CH4Jet dynamic control 7 is delivered to generate electricity；
Waste-heat recovery device 11 is connect with jet dynamic control 7, and the heat recovery for generating jet dynamic control 7 is standby
With.
It further include the first compressor 2, the first compressor 2 is arranged between gas-liquid separator and membrane separator, for gas
The pressurization of state torch gas, and the gaseous state torch gas after pressurization is delivered to the membrane separator.
It further include that the second compressor 10 is connect with fluid reservoir 9, membrane separator includes the first membrane separator 3 and the second UF membrane
Device 4, the first compressor 2 are connect with gas-liquid separator 1, the first membrane separator 3, the first membrane separator 3 also with the second membrane separator 4
Connection, the second membrane separator 4 are connect with adsorbing separation device；
First membrane separator 3, the second membrane separator 4, adsorbing separation device are connect with fluid reservoir 9, and are also pressed with second
Contracting machine 10 connects；
Wherein, it is provided with valve V1, valve V2, valve V5, valve V6 on the first membrane separator 3, is provided with valve on the second membrane separator 4
V3, valve V4, valve V7, valve VS8.
Adsorbing separation device includes the first adsorbing separation device 5 and the second adsorbing separation device 6, the first membrane separator 3, the second film point
It is connected with each other from device 4, the first adsorbing separation device 5 and the second adsorbing separation device 6；
First adsorbing separation device 5 and the second adsorbing separation device 6 are connect with fluid reservoir 9, and also with the second compressor 10
Connection；
Wherein, valve V9, valve V10, valve V13, valve V14 are provided on the first adsorbing separation device 5, on the second adsorbing separation device 6
It is provided with valve V11, valve V12, valve V15, valve V16.
The utility model additionally provides a kind of specific embodiment, the present embodiment oil field torch atmospheric pressure 0.3MPa, torch gas
Component is shown in Table 1.
1 oil field torch gas component (V%) of table
The boiling point of main component is as shown in table 2 in torch gas.
The boiling point of main component in 2 oil field torch gas of table
The torch gas generated in oilfield process enters gas-liquid separator 1, and the liquid isolated is sent by pump 8 to fluid reservoir
9, the torch gas isolated enters the first compressor 2 and is pressurized to 1.6MPa.
Pressurized 1.6MPa torch gas enters membrane separator, and membrane separator includes the first membrane separator 3, the second UF membrane
Device 4 and valve V1~V8, when torch gas, which enters the first membrane separator 3, to be separated, the second then back flush of UF membrane 4, tool
Body, valve V1, V2, the V6 on the first membrane separator to be opened, valve V5 is closed, torch gas enters the first membrane separator by valve V1,
Isolate infiltration gas (C3+ and the above component) and infiltration residual air (C1、C2), atmospheric pressure about 0.2MPa is permeated, enters second by valve V6
Compressor 10, is compressed into 1.5MPa, is converted into liquid and enters fluid reservoir 9.Residual air pressure about 1.55MPa is seeped to enter by valve V2
Adsorbing separation device.At this point, valve V3, V8 on the second membrane separator are in close state, valve V4, V7 are in the open state, liquid storage
The on-condensible gas on tank top enters the second membrane separator by valve V7, and the light hydrocarbon component being attached on film is purged out, and purges
Gas enters adsorption separation unit by valve V4 and infiltration residual air together.First membrane separator 3 and the second membrane separator 4 are cut by valve
The purification for changing the continuous work and film of realizing the recyclable device, to improve the separative efficiency of membrane separator.
Torch impervious gas and infiltration residual air component after this embodiment UF membrane is as shown in Table 3 and Table 4.
3 oil field torch gas UF membrane of table permeates gas component (V%)
4 oil field torch gas UF membrane of table seeps residual air component (V%)
Absorbing unit includes the first adsorbing separation device 5 and the second adsorbing separation device 6 and valve V9~V16, when the first absorption
When separator 5 adsorbs, the desorption of the second adsorbing separation device 6.Specifically, opening valve V10, the V13 on the first adsorbing separation device 5, close
Valve closing V9, V14, the infiltration residual air of membrane separator and purge air through valve V13 into the first adsorbing separation device 5, C2+ light hydrocarbon component quilt
Adsorbent absorption, the CH separated at the top of adsorbing separation device4Tail gas pressure about 1.4MPa, CH4Tail gas is entered by valve V10
Jet dynamic control 7.At this point, the valve V11 on the second adsorbing separation device, V16 is in the open state, V11, and V15, which is in, closes shape
The on-condensible gas of state, 9 top of fluid reservoir enters adsorbing separation device by valve V11, by the adsorbed C of adsorbent2+ light hydrocarbon component is blown
It scans out and, adsorbent is regenerated, C2+ light hydrocarbon component enters the second compressor 10 by valve V16, is compressed into 1.5MPa, turns
It turns to liquid and enters heat storage can 9.First adsorbing separation device 5 and the second adsorbing separation device 6 are realized by valve transfer working condition
It adsorbs and what is desorbed is carried out continuously.Rich CH after this embodiment adsorbing separation4Exhaust gas composition and stripping gas component such as table 5 and table
Shown in 6.
5 oil field torch gas adsorbing separation richness CH of table4Exhaust gas composition (V%)
6 oil field torch gas adsorbing separation stripping gas component (V%) of table
The CH that adsorbing separation comes out4Tail gas enters the power generation of jet dynamic control 7, and electric power a part of sending is filled for this recycling
Current consuming apparatus use is set, a part is used for oil field equipment, and the high-temperature flue gas that generating set generates passes through waste-heat recovery device 11
The heat in high-temperature flue gas is recycled, is used for oil field heating equipment 13, the low-temperature flue gas after recycling heat is discharged by chimney 12.
Embodiment lighter hydrocarbons overall recovery > 98%, CH4Tail gas concentration > 93% had both realized returning for torch gas light hydrocarbon component
Yield maximizes, and in turn ensures the safety of Gas Generator Set air inlet.Power consumption of the cogeneration unit in addition to meeting this system, also
Excrescent electric power and thermal energy are provided for oil field, reduces energy waste, increases oil field income.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (4)
1. a kind of recycle device of oil field torch gas characterized by comprising gas-liquid separator (1), membrane separator, suction
Attached separator, fluid reservoir (9), jet dynamic control (7), waste-heat recovery device (11) pump (8)；
The gas-liquid separator (1) for separating gaseous state and liquid torch gas in torch gas, and gaseous state torch gas is delivered to
Liquid torch gas is transported to the fluid reservoir (9) storage by pumping (8) by the membrane separator；
The membrane separator is connect with the gas-liquid separator (1), for separating the gaseous state torch gas, and by the fire after separation
Torch gas is delivered to the adsorbing separation device；
The adsorbing separation device is connect with the membrane separator, for that will carry out by the torch gas after membrane separator separation
Separation, obtains CH4, and by CH4The jet dynamic control (7) is delivered to generate electricity；
The waste-heat recovery device (11) connect with the jet dynamic control (7), for producing the jet dynamic control (7)
Raw heat recovery is spare.
2. a kind of recycle device of oil field torch gas according to claim 1, which is characterized in that further include the first pressure
Contracting machine (2), first compressor (2) are arranged between the gas-liquid separator (1) and the membrane separator, for described
The pressurization of gaseous state torch gas, and the gaseous state torch gas after pressurization is delivered to the membrane separator.
3. a kind of recycle device of oil field torch gas according to claim 2, which is characterized in that further include with it is described
Fluid reservoir (9) connects the second compressor (10), and the membrane separator includes the first membrane separator (3) and the second membrane separator (4),
First compressor (2) connect with the gas-liquid separator (1), first membrane separator (3), first membrane separator
(3) it is also connect with second membrane separator (4), second membrane separator (4) connect with the adsorbing separation device；
First membrane separator (3), the second membrane separator (4), adsorbing separation device are connect with the fluid reservoir (9), and also
It is connect with second compressor (10)；
Wherein, valve V1, valve V2, valve V5, valve V6 are provided on first membrane separator (3), on second membrane separator (4)
It is provided with valve V3, valve V4, valve V7, valve V8.
4. a kind of recycle device of oil field torch gas according to claim 3, which is characterized in that the adsorbing separation
Device includes the first adsorbing separation device (5) and the second adsorbing separation device (6), first membrane separator (3), the second membrane separator
(4), the first adsorbing separation device (5) and the second adsorbing separation device (6) are connected with each other；
The first adsorbing separation device (5) and the second adsorbing separation device (6) are connect with the fluid reservoir (9), and also and institute
State the second compressor (10) connection；
Wherein, valve V9, valve V10, valve V13, valve V14, second adsorbing separation are provided on the first adsorbing separation device (5)
Valve V11, valve V12, valve V15, valve V16 are provided on device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920133414.XU CN209685715U (en) | 2019-01-25 | 2019-01-25 | A kind of recycle device of oil field torch gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920133414.XU CN209685715U (en) | 2019-01-25 | 2019-01-25 | A kind of recycle device of oil field torch gas |
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| CN209685715U true CN209685715U (en) | 2019-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178457A (en) * | 2020-10-29 | 2021-01-05 | 中国石油天然气集团有限公司 | System and method for controlling liquid conveying stoppage of low-pressure flash gas pipeline in oil field |
-
2019
- 2019-01-25 CN CN201920133414.XU patent/CN209685715U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178457A (en) * | 2020-10-29 | 2021-01-05 | 中国石油天然气集团有限公司 | System and method for controlling liquid conveying stoppage of low-pressure flash gas pipeline in oil field |
| CN112178457B (en) * | 2020-10-29 | 2024-06-11 | 中国石油天然气集团有限公司 | System and method for controlling stop-transfusion accumulated liquid of low-pressure flash steam pipeline of oil field |
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