CN115722033A

CN115722033A - Hollow fiber tubular membrane oil gas treatment system with washing absorption tower and method thereof

Info

Publication number: CN115722033A
Application number: CN202111189920.9A
Authority: CN
Inventors: 郑石治; 扶亚民; 彭启政
Original assignee: Shanghai Huamao Environmental Protection Energy Saving Equipment Co ltd; Desiccant Technology Corp
Current assignee: Shanghai Huamao Environmental Protection Energy Saving Equipment Co ltd; Desiccant Technology Corp
Priority date: 2021-08-31
Filing date: 2021-10-12
Publication date: 2023-03-03
Also published as: TWI807404B; TW202311669A

Abstract

The invention provides a hollow fiber tubular membrane oil gas treatment system with a washing absorption tower and a method thereof, which are mainly used for the hollow fiber tubular membrane oil gas treatment system and comprise a double-barrel hollow fiber tubular membrane adsorption device, an oil gas conveying pipeline, an exhaust gas conveying pipeline and a washing absorption tower, wherein oil gas is conveyed to the double-barrel hollow fiber tubular membrane adsorption device from the other end of the oil gas conveying pipeline for oil gas adsorption, when the oil gas becomes purified gas after adsorption, the efficiency can reach 97 percent or even more than 99 percent, after a period of operation switching time, the adsorbed oil gas is subjected to vacuum pressure swing desorption to form concentrated oil gas, and the concentrated oil gas is conveyed into the washing absorption tower through a desorption pipeline for concentrated oil gas absorption, so that the oil gas reabsorption treatment effect is achieved.

Description

Hollow fiber tubular membrane oil gas treatment system with washing absorption tower and method thereof

Technical Field

The invention relates to a hollow fiber tubular membrane oil gas treatment system with a washing absorption tower and a method thereof, in particular to a hollow fiber tubular membrane oil gas treatment system which has the efficiency of 97 percent or even more than 99 percent when oil gas becomes purified gas after being absorbed, has the effects of concentrating the oil gas and performing reabsorption treatment, and is suitable for gas stations, underground oil storage tanks or similar areas.

Background

At present, a gas station can volatilize oil gas in the process of refueling a motor vehicle, and the current method is to bury an oil gas recovery pipeline in the refueling machine below the refueling machine, and the other end of the oil gas recovery pipeline in the refueling machine is connected with the underground oil tank, and the oil gas volatilized in the refueling process is collected into an oil discharge tank through the oil gas recovery pipeline in the refueling machine by vacuum auxiliary oil gas recovery equipment so as to achieve the purpose of oil gas collection.

And the aforesaid is carried the underground oil groove with oil gas in, and oil gas still can be volatilized to the oil of underground oil groove when storing, and when storing a period after, the oil gas in this underground oil groove can produce pressure gradually, consequently, this underground oil groove all is equipped with pressure valve and breather pipe, when the produced pressure of oil gas is greater than the value that pressure valve set for, this pressure valve can be opened and discharge to the air through the breather pipe, let the produced pressure of oil gas in the underground oil groove get back to safe value, avoid producing danger. In addition, in the oil loading and unloading process of a gasoline and diesel oil tank truck of a petroleum company or a large oil storage tank of a gasoline and diesel oil tank truck, exhaust gas is generated, and the exhaust gas contains very concentrated volatile organic gases with the concentration of 60g/Nm ³ ，300g/Nm ³ Or higher.

However, the oil gas discharged from the underground oil tank through the breathing tube is likely to cause great influence on the environment, and besides polluting the surrounding air, the underground oil tank also has potential safety hazards and dangers when the concentration of the oil gas discharged from the breathing tube is too high.

Therefore, in view of the above-mentioned shortcomings, the present inventors have desired to provide a hollow fiber tubular membrane oil and gas treatment system with a scrubbing absorption tower and a method thereof, which can be easily assembled by a user, so that the inventors have a motivation to develop the invention by devising and designing a system to provide convenience to the user.

Disclosure of Invention

The main objective of the present disclosure is to provide a hollow fiber tubular membrane oil-gas treatment system with a washing absorption tower and a method thereof, which is mainly used for the hollow fiber tubular membrane oil-gas treatment system, and comprises a double-barrel hollow fiber tubular membrane adsorption device, an oil-gas conveying pipeline, an exhaust conveying pipeline and a washing absorption tower, wherein oil-gas is conveyed from the other end of the oil-gas conveying pipeline to the double-barrel hollow fiber tubular membrane adsorption device for oil-gas adsorption, when the oil-gas becomes purified gas after adsorption, the efficiency of the oil-gas can reach 97% or even more than 99%, after a period of operation switching time, the adsorbed oil-gas is subjected to Vacuum Swing Adsorption (VSA) to be desorbed into concentrated oil-gas, and the oil-gas is concentrated and desorbed and conveyed into the washing absorption tower through the exhaust pipeline for concentrated oil-gas absorption, so that the oil-gas reabsorption treatment effect is achieved, and the overall practicability is further increased.

Another objective of the present disclosure is to provide a hollow fiber tubular membrane oil and gas treatment system with a washing absorption tower and a method thereof, wherein at least one absorbent and at least one absorption tower packing are disposed in the washing absorption tower, so that the washing absorption tower can absorb the concentrated oil and gas through the absorbent, and then the washing absorption tower has no circulation pipeline, one end of the circulation pipeline is connected to the at least one absorbent of the washing absorption tower, and the other end of the circulation pipeline extends into the upper portion of the at least one absorption tower packing of the washing absorption tower, and the other end of the circulation pipeline is provided with at least one spraying head, so that the absorbent with the concentrated oil and gas can be sprayed on the absorption tower packing through the circulation pipeline, so that the concentrated oil and gas has the effect of recycling absorption, thereby increasing the overall usability.

Another objective of the present disclosure is to provide a hollow fiber tubular membrane oil-gas treatment system with a washing absorption tower and a method thereof, wherein the other end of the washing exhaust pipe is connected to the oil-gas transmission pipeline, so as to recycle the purified gas in the washing exhaust pipe back to the oil-gas transmission pipeline, so that the purified gas generated after concentrated oil-gas absorption in the washing absorption tower can be re-transmitted to the double-barrel hollow fiber tubular membrane adsorption equipment through the oil-gas transmission pipeline for further adsorption, thereby achieving the effect of re-purification and further increasing the overall operability.

For a further understanding of the nature, character, and technical content of the present disclosure, reference should be made to the following detailed description of the disclosure and accompanying drawings which are provided for purposes of illustration and description only and are not intended to limit the disclosure.

Drawings

Fig. 1 is a schematic diagram of a system architecture for setting a first hollow fiber tubular membrane cartridge to an adsorption mode according to the present disclosure.

Fig. 2 is a schematic diagram of a system architecture with a second hollow fiber tubular membrane cartridge set to adsorption mode according to the present disclosure.

Fig. 3 is a schematic diagram of a system architecture for recycling the scrubbing exhaust gas with the first hollow fiber tubular membrane drum set to the adsorption mode according to the present disclosure.

Fig. 4 is a schematic diagram of the system architecture for recycling the scrubbing exhaust gas with the second hollow fiber tubular membrane drum set to the adsorption mode according to the present disclosure.

Fig. 5 is a flow chart of the main steps of the present disclosure.

Fig. 6 is a flowchart of another step of the present disclosure.

In the figure, the position of the upper end of the main shaft,

1. double-barrel type hollow fiber tubular membrane adsorption equipment

10. First hollow fiber tubular membrane barrel

103. Hollow fiber tubular membrane adsorption material

11. First pipeline

12. The second pipeline

121. Second extension pipeline

1211. Second extension valve

1212. Second extension flow-limiting valve

20. Second hollow fiber tubular membrane barrel

203. Hollow fiber tubular membrane adsorption material

21. Third pipeline

22. Fourth pipeline

221. Fourth extension pipeline

2211. Fourth extension valve

2212. Fourth extending flow-limiting valve

30. Oil gas conveying pipeline

31. Oil gas control valve

40. Exhaust gas conveying pipeline

41. Chimney

50. Washing absorption tower

501. Absorbent agent

502. Absorption tower packing

51. Desorption discharge pipeline

511. Vacuum pump

52. Washing exhaust pipeline

60. Circulation pipeline

61. Sprinkler head

62. Circulating pump

70. Air inlet communicating pipeline

71. First air inlet valve

73. Third air inlet valve

80. Air outlet communicating pipeline

81. First air outlet valve

83. Third air outlet valve

90. Exhaust communicating pipeline

92. Second exhaust valve

94. Fourth exhaust valve

S100, oil and gas conveying

S110, carrying out oil gas adsorption

S120, generating a purge gas

S130, purifying gas exhaust

S140, oil gas adsorption switching

S150, desorbing and concentrating the oil gas

S160, concentrated oil and gas delivery

S170, concentrated oil gas absorption

S180, purified gas discharge

S200, purified gas returning

Detailed Description

Referring to fig. 1 to 6, schematic diagrams of an embodiment of the present disclosure are shown, and a preferred embodiment of the hollow fiber tubular membrane oil gas treatment system with a scrubbing absorption tower and the method thereof of the present disclosure is applied to a gas station, an underground oil storage tank or the like, and mainly when oil gas is adsorbed to be purified gas, the efficiency of the system can reach 97% or even more than 99%, and the system has the effects of oil gas concentration and reabsorption treatment.

The disclosed hollow fiber tubular membrane oil gas treatment system with washing absorption tower mainly comprises a double-barrel hollow fiber tubular membrane adsorption device 1, an oil gas delivery pipeline 30, an exhaust gas delivery pipeline 40 and a washing absorption tower 50, wherein the double-barrel hollow fiber tubular membrane adsorption device 1 is respectively provided with a first hollow fiber tubular membrane barrel 10 and a second hollow fiber tubular membrane barrel 20 (as shown in figures 1 to 4), and the first hollow fiber tubular membrane barrel 10 and the second hollow fiber tubular membrane barrel 20 are respectively filled with a plurality of tubular hollow fiber tubular

membrane adsorption materials

103 and 203, wherein the tubular hollow fiber tubular

membrane adsorption materials

103 and 203 are made of polymers and adsorbents, the polymer is at least one selected from the group consisting of Polysulfone (PSF), polyethersulfone (PESF), polyvinylidene fluoride (PVDF), polyphenylsulfone (PPSU), polyacrylonitrile (polyacrylonitril), cellulose acetate, cellulose diacetate, polyimide (PI), polyetherimide, polyamide, polyvinyl alcohol, polylactic acid, polyglycolic acid, polylactic-co-glycolic acid, polycaprolactone, polyvinylpyrrolidone, ethylene vinyl alcohol (ethylene vinyl alcohol), polydimethylsiloxane, polytetrafluoroethylene, and Cellulose Acetate (CA). The diameters and the outer diameters of the prepared tubular hollow fiber tubular

membrane adsorption materials

103 and 203 are more than 0.5mm, so that the tubular hollow fiber tubular membrane adsorption materials have high specific surface areas, are easy to adsorb and desorb, the dosage of the adsorbent is smaller than that of the traditional particle type, the same dynamic adsorption effect can be achieved, and the desorption can be completed by using less heat energy naturally during desorption, so that the energy-saving effect is achieved.

The ratio of the adsorbent in the tubular hollow fiber tubular

membrane adsorbing materials

103, 203 is 10% -90%, and the adsorbent is powder, the particles of the powder have a particle size of 0.005-50 um, and the particles of the powder have a two-dimensional or three-dimensional pore structure, and the pores are regular or irregular, wherein the adsorbent is at least one selected from the group consisting of molecular sieves, a-type zeolites (such as 3A, 4A or 5A), X-type zeolites (such as 13X), Y-type zeolites (such as ZSM-5), mesoporous molecular sieves (such as MCM-41, 48, 50 and SBA-15), metal Organic Frameworks (MOFs), activated carbon or graphene.

In addition, at least one absorbent 501 and at least one absorbent 502 (as shown in fig. 1 to fig. 4) are disposed in the scrubbing and absorbing tower 50, wherein the absorbent 501 is disposed below the scrubbing and absorbing tower 50, the absorbent 501 is liquid, but the present disclosure adopts diesel, and the absorbent 501 may also be other liquid capable of being sufficiently contacted with the liquid, so as to improve the absorption efficiency of the absorbent 501. In addition, the absorber 502 is disposed in the middle of the scrubber 50, and the absorber 502 is mainly used to increase the contact area between the liquid and the gas flow, and further increase the reaction absorption surface area, wherein the absorber 502 is a raschig ring intalox saddle packing or a corrugated packing, which provides a large gas-liquid contact surface, so that the absorber 502 can be easily wetted by the liquid, and only the wetted surface is the gas-liquid contact surface. The absorber packing 502 may be stacked (stacked) or stacked (stacked) to provide sufficient contact between the gas and the liquid.

The above-mentioned washing and absorbing tower 50 is provided with a circulation pipeline 60 (as shown in fig. 1 to fig. 4), one end of the circulation pipeline 60 is connected to the lower portion of the washing and absorbing tower 50, that is, the position of the absorbent 501, and the other end of the circulation pipeline 60 extends into the upper portion of the washing and absorbing tower 50, that is, the upper portion of the absorbent tower filler 502, and the other end of the circulation pipeline 60 is provided with at least one spraying head 61 (as shown in fig. 1 to fig. 4), so that the absorbent 501 located at the lower portion of the washing and absorbing tower 50 can be transported to the upper portion of the washing and absorbing tower 50 through the circulation pipeline 60, and sprayed downward from the upper portion of the washing and absorbing tower 50 by the spraying head 61, so as to flow through the absorbent tower filler 502 located at the middle portion of the washing and absorbing tower 50, so that the absorbent tower filler 502 can adhere to a film (not shown), and when the gas passes through the gap of the absorbent tower filler 502, the gas can be removed by adhesion and absorption. The circulation pipeline 60 is provided with a circulation pump 62 (as shown in fig. 1 to 4) to push the absorbent 501 from one end of the circulation pipeline 60 to the other end of the circulation pipeline 60, so as to have a lifting effect.

In addition, the first hollow fiber tubular membrane barrel 10 of the double-barrel hollow fiber tubular membrane adsorption equipment 1 is provided with a first pipeline 11 and a second pipeline 12, and the second hollow fiber tubular membrane drum 20 of the double-drum hollow fiber tubular membrane adsorption apparatus 1 is provided with a third pipeline 21 and a fourth pipeline 22 (as shown in fig. 1 to 4), an air inlet communicating pipe 70 and an air outlet communicating pipe 80 are respectively arranged between the first pipe 11 of the first hollow fiber tubular membrane barrel 10 and the third pipe 21 of the second hollow fiber tubular membrane barrel 20, and an air outlet communicating pipe 90 (as shown in fig. 1 to 4) is arranged between the second pipe 12 of the first hollow fiber tubular membrane barrel 10 and the fourth pipe 22 of the second hollow fiber tubular membrane barrel 20, wherein the intake communication pipe 70 is provided with a first intake valve 71 and a third intake valve 73, the first intake valve 71 is close to the first pipeline 11, and the third intake valve 73 is close to the third pipeline 21, so that the gas flow direction in the intake communication pipeline 70 can be controlled through the first intake valve 71 and the third intake valve 73, the air outlet connecting pipe 80 is provided with a first air outlet valve 81 and a third air outlet valve 83, the first air outlet valve 81 is close to the first pipeline 11, and the third air outlet valve 83 is close to the third pipeline 21, so that the air flow direction in the air outlet communication pipeline 80 can be controlled by the first air outlet valve 81 and the third air outlet valve 83, and the air outlet communication pipeline 90 is provided with a second air outlet valve 92 and a fourth air outlet valve 94, the second exhaust valve 92 is close to the second pipe 12, and the fourth exhaust valve 94 is close to the fourth pipe 22, so that the gas flow direction in the exhaust communicating pipe 90 can be controlled by the second exhaust valve 92 and the fourth exhaust valve 94.

The second pipe 12 of the first hollow fiber tubular membrane cylinder 10 is connected to a second extension pipe 121, the second extension pipe 121 is provided with a second extension valve 1211 and a second extension flow-limiting valve 1212 (as shown in fig. 1 to 4), the gas flow direction in the second extension pipe 121 is controlled by the second extension valve 1211, the gas in the second extension pipe 121 is limited by the second extension flow-limiting valve 1212 to flow out from the other end, the fourth pipe 22 of the second hollow fiber tubular membrane cylinder 20 is connected to a fourth extension pipe 221, the fourth extension pipe 221 is provided with a fourth extension valve 2211 and a fourth extension flow-limiting valve 2211 (as shown in fig. 1 to 4), the gas flow direction in the fourth extension pipe 221 is controlled by the fourth extension valve 2211, and the gas in the fourth extension pipe 221 is limited by the fourth extension flow-limiting valve 2212 to flow out from the other end.

The air intake communication pipeline 70 is connected to the oil gas delivery pipeline 30, one end of the oil gas delivery pipeline 30 is connected to an oil gas generation site (not shown), wherein the oil gas generation site is any one of oil gas (disposable oil gas) in the oil unloading process of the oil tank truck, oil gas (secondary oil gas) in the oil filling process, and oil gas (tertiary oil gas) exhaled from an underground oil tank, and the other end of the oil gas delivery pipeline 30 is connected to the air intake communication pipeline 70, so that the oil gas can be delivered into the air intake communication pipeline 70 through the oil gas delivery pipeline 30 (as shown in fig. 1 and 2), and then the first air intake valve 71 and the third air intake valve 73 respectively control the on-off, so that the oil gas can enter the first hollow fiber tubular membrane barrel 10 through the first pipeline 11 through the air intake communication pipeline 70 for adsorption (as shown in fig. 1 and 2), or enter the second hollow fiber tubular membrane barrel 20 through the third pipeline 21 through the air intake communication pipeline 70 for adsorption (as shown in fig. 1 and 2), and the oil gas delivery pipeline 30 controls the flow rate of the oil gas delivery pipeline 31 (as shown in fig. 4).

The exhaust gas communication pipe 90 is connected to one end of the exhaust gas conveying pipe 40, and the other end of the exhaust gas conveying pipe 40 has two embodiments, wherein the first embodiment is that the other end of the exhaust gas conveying pipe 40 is connected to a chimney 41 (as shown in fig. 1), and the second embodiment is that the other end of the exhaust gas conveying pipe 40 is conveyed to the atmosphere (as shown in fig. 2). On the basis, the purge gas generated after the first hollow fiber tubular membrane barrel 10 is subjected to the oil-gas adsorption can be output to the exhaust communicating pipeline 90 through the second pipeline 12, and then the purge gas is discharged through the other end of the exhaust conveying pipeline 40 (as shown in fig. 1), or the purge gas generated after the second hollow fiber tubular membrane barrel 20 is subjected to the oil-gas adsorption can be output to the exhaust communicating pipeline 90 through the fourth pipeline 22, and then the purge gas is discharged through the other end of the exhaust conveying pipeline 40 (as shown in fig. 2).

In addition, the washing absorption tower 50 is provided with a desorption discharge pipeline 51 and a washing exhaust pipeline 52, and one end of the desorption discharge pipeline 51 is connected to the gas outlet communication pipeline 80, so that the concentrated oil gas desorbed from the first hollow fiber tubular membrane drum 10 can be output to the gas outlet communication pipeline 80 through the first pipeline 11, and then be transmitted to the desorption discharge pipeline 51 through the gas outlet communication pipeline 80 (as shown in fig. 2), or the concentrated oil gas desorbed from the second hollow fiber tubular membrane drum 20 can be output to the gas outlet communication pipeline 80 through the third pipeline 21, and then be transmitted to the desorption discharge pipeline 51 through the gas outlet communication pipeline 80 (as shown in fig. 1). The other end of the desorption discharge pipeline 51 is connected to the washing and absorption tower 50, wherein the connection position of the washing and absorption tower 50 is a position where the absorbent 501 is disposed in the washing and absorption tower 50, so that the concentrated oil gas conveyed by the desorption discharge pipeline 51 can be fully contacted with the absorbent 501 and absorbed by the absorbent 501. The desorption discharge pipeline 51 is further provided with a vacuum pump 511 (as shown in fig. 1 to 4), and the vacuum pump 511 can desorb the oil gas in the first hollow fiber tubular membrane adsorption tank 10 or the oil gas in the second hollow fiber tubular membrane adsorption tank 20 through Vacuum Swing Adsorption (VSA), and can push the concentrated oil gas desorbed from the gas outlet communication pipeline 80 into the washing absorption tower 50 through the desorption discharge pipeline 51.

In addition, one end of the purge exhaust pipe 52 is connected to the purge absorption tower 50, and the other end of the purge exhaust pipe 52 has two embodiments, wherein the first embodiment is that the other end of the purge exhaust pipe 52 is connected to a chimney 41 (as shown in fig. 2), and the second embodiment is that the other end of the purge exhaust pipe 52 is delivered to the atmosphere (as shown in fig. 1), on the basis, the purge gas generated after the absorption of the concentrated oil gas by the purge absorption tower 50 can be exhausted to the outside atmosphere through the purge exhaust pipe 52.

The other end of the purge exhaust line 52 can perform a recycling adsorption embodiment in addition to the exhaust of the outside atmosphere according to the above two embodiments, wherein the other end of the purge exhaust line 52 is connected to the oil-gas transmission line 30 (as shown in fig. 3 and 4), and mainly the purge gas generated by the purge absorption tower 50 after performing the concentrated oil-gas absorption contains thin oil-gas, so that the purge gas generated by the purge absorption tower 50 after performing the concentrated oil-gas absorption can be transmitted back to the oil-gas transmission line 30 through the purge exhaust line 52, so that the purge gas in the purge exhaust line 50 can be mixed with the oil-gas in the oil-gas transmission line 30, and then transmitted to the intake communication line 70 through the other end of the oil-gas transmission line 30 (as shown in fig. 3 and 4), and then transmitted into the first hollow fiber tubular membrane barrel 10 for oil-gas adsorption through the first pipeline 11 communicated with the intake communication line 70 (as shown in fig. 3), or transmitted into the second hollow fiber tubular membrane barrel 20 for oil-gas adsorption through the third pipeline 21 communicated with the intake communication line 70 (as shown in fig. 3).

In addition, in the actual operation of the present disclosure, the first hollow fiber tubular membrane barrel 10 and the second hollow fiber tubular membrane barrel 20 of the dual-barrel hollow fiber tubular membrane adsorption apparatus 1 have different selections in the adsorption mode and the desorption mode, wherein the first implementation selection is set by time (not shown), for example, set to 10 minutes (not limited by the embodiment), when the time is up, the first hollow fiber tubular membrane barrel 10, which is originally in the adsorption mode, is converted into the desorption mode, and the second hollow fiber tubular membrane barrel 20, which is originally in the desorption mode, is converted into the adsorption mode. The second implementation option is set by concentration (not shown), and a concentration detector (not shown) is disposed through the exhaust gas conveying pipeline 40, so that the first hollow fiber tubular membrane barrel 10 and the second hollow fiber tubular membrane barrel 20 can switch between the adsorption mode and the desorption mode according to the concentration detected by the concentration detector.

When the first hollow fiber tubular membrane barrel 10 is set to the adsorption mode (as shown in fig. 1 and 3), the second hollow fiber tubular membrane barrel 20 is set to the desorption mode, in which the first air intake valve 71 disposed on the air intake communication pipeline 70 and close to the first pipeline 11 is in an open state, so that the oil gas can flow through the first air intake valve 71 of the air intake communication pipeline 70 and enter the first hollow fiber tubular membrane barrel 10 for adsorption, and the third air intake valve 73 disposed on the air intake communication pipeline 70 and close to the third pipeline 21 is in a closed state. A second exhaust valve 92 disposed on the exhaust communication pipeline 90 and close to the second pipeline 12 is opened, so that the purified gas generated after the oil-gas adsorption in the first hollow fiber tubular membrane drum 10 flows through the second exhaust valve 92 of the exhaust communication pipeline 90 via the second pipeline 12 and enters the exhaust conveying pipeline 40 (as shown in fig. 1 and 3), and the purified gas is exhausted from the other end of the exhaust conveying pipeline 40, and a fourth exhaust valve 94 disposed on the exhaust communication pipeline 90 and close to the fourth pipeline 22 is closed.

Furthermore, the desorption discharge pipeline 51 has a vacuum pump 511, when the second hollow fiber tubular membrane drum 20 is undergoing vacuum pressure swing (VSA) desorption and is undergoing desorption by vacuum pumping, the third gas outlet valve 83 additionally disposed on the gas outlet communication pipeline 80 and close to the third pipeline 21 is opened (as shown in fig. 1 and 3), so as to allow adsorbed oil gas in the second hollow fiber tubular membrane drum 20 to be desorbed and become concentrated oil gas, and the adsorbed oil gas passes through the third gas outlet valve 83 of the gas outlet communication pipeline 80 via the third pipeline 21, enters the desorption discharge pipeline 51, and is then conveyed to the lower portion of the washing absorption tower 50 to allow the absorbent 501 to absorb, and finally the purified gas generated after the washing absorption tower 50 undergoes concentrated oil gas absorption via the washing exhaust pipeline 52 is discharged, and the first gas outlet valve 81 disposed on the gas outlet communication pipeline 80 and close to the first pipeline 11 is closed.

Conversely, when the second hollow fiber tubular membrane barrel 20 is set to the adsorption mode (as shown in fig. 2 and 4), the first hollow fiber tubular membrane barrel 10 is set to the desorption mode, in which the third air intake valve 73 disposed on the air intake communication pipeline 70 and close to the third pipeline 21 is in an open state, so that the oil gas can flow through the third pipeline 21 via the third air intake valve 73 of the air intake communication pipeline 70 and enter the second hollow fiber tubular membrane barrel 20 for adsorption, and the first air intake valve 71 disposed on the air intake communication pipeline 70 and close to the first pipeline 11 is in a closed state. A fourth exhaust valve 94 disposed on the exhaust communication pipeline 90 and close to the fourth pipeline 22 is opened, so that the purified gas generated after the oil-gas adsorption in the second hollow fiber tubular membrane drum 20 flows through the fourth exhaust valve 94 of the exhaust communication pipeline 90 via the fourth pipeline 22 and enters the exhaust conveying pipeline 40 (as shown in fig. 2 and 4), and the purified gas is exhausted from the other end of the exhaust conveying pipeline 40, and a second exhaust valve 92 disposed on the exhaust communication pipeline 90 and close to the second pipeline 12 is closed.

Furthermore, the desorption discharge pipeline 51 has a vacuum pump 511, when the first hollow fiber tubular membrane drum 10 is undergoing vacuum pressure swing (VSA) desorption and is undergoing desorption by vacuum pumping, the first gas outlet valve 81 additionally disposed on the gas outlet communication pipeline 80 and close to the first pipeline 11 is in an open state (as shown in fig. 2 and 4), so as to allow adsorbed oil gas in the first hollow fiber tubular membrane drum 10 to be desorbed and become concentrated oil gas, and the adsorbed oil gas passes through the first gas outlet valve 81 of the gas outlet communication pipeline 80 via the first pipeline 11, enters the desorption discharge pipeline 51, and is then conveyed to the lower portion of the washing absorption tower 50 to allow the absorbent 501 to absorb, and finally the washing exhaust pipeline 52 discharges purified gas generated after the washing absorption tower 50 performs concentrated oil gas absorption, and the third gas outlet valve 83 disposed on the gas outlet communication pipeline 80 and close to the third pipeline 21 is in a closed state.

The disclosed method for treating oil gas with hollow fiber tubular membrane with washing absorption tower is mainly used for oil gas treatment system with hollow fiber tubular membrane, and comprises a double-barrel hollow fiber tubular membrane adsorption device 1, an oil gas delivery pipeline 30, an exhaust delivery pipeline 40 and a washing absorption tower 50 (as shown in fig. 1 to fig. 4), wherein the double-barrel hollow fiber tubular membrane adsorption device 1 is respectively provided with a first hollow fiber tubular membrane barrel 10 and a second hollow fiber tubular membrane barrel 20, the first hollow fiber tubular membrane barrel 10 is filled with a plurality of tubular hollow fiber tubular membrane adsorption materials 103, the second hollow fiber tubular membrane barrel 20 is filled with a plurality of tubular hollow fiber tubular membrane adsorption materials 203, the tubular hollow fiber tubular membrane adsorbing materials 103 and 203 are made of at least one of Polysulfone (PSF), polyethersulfone (PESF), polyvinylidene fluoride (PVDF), polyphenylsulfone (PPSU), polyacrylonitrile (polyacrylonitrile), cellulose acetate, cellulose diacetate, polyimide (PI), polyetherimide, polyamide, polyvinyl alcohol, polylactic acid, polyglycolic acid, polylactic-co-glycolic acid, polycaprolactone, polyvinylpyrrolidone, ethylene vinyl alcohol (ethylene vinyl alcohol), polydimethylsiloxane, polytetrafluoroethylene, and Cellulose Acetate (CA), and an adsorbent. The diameter and the outer diameter of the tubular hollow fiber tubular

membrane adsorbing materials

103 and 203 are more than 0.5mm, so that the tubular hollow fiber tubular membrane adsorbing materials have high specific surface area, are easy to adsorb and desorb, the using amount of the adsorbent is smaller than that of the traditional particle type, the same dynamic adsorption effect can be achieved, and the desorption can be completed by using less heat energy naturally during desorption, so that the energy-saving effect is achieved.

The ratio of the adsorbent in the tubular hollow fiber tubular

membrane adsorbing materials

103 and 203 is 10-90%, the adsorbent is powder, the particles of the powder have a particle size of 0.005-50 um, the particles of the powder have a two-dimensional or three-dimensional pore structure, and the pores are regular or irregular, wherein the adsorbent is at least one selected from the group consisting of molecular sieves, a-type zeolites (e.g., 3A, 4A or 5A), X-type zeolites (e.g., 13X), Y-type zeolites (e.g., ZSM-5), mesoporous molecular sieves (e.g., MCM-41, 48, 50 and SBA-15), metal Organic Frameworks (MOFs), activated carbon and graphene.

In addition, the first hollow fiber tubular membrane barrel 10 of the double-barrel hollow fiber tubular membrane adsorption equipment 1 is provided with a first pipeline 11 and a second pipeline 12, the second hollow fiber tubular membrane barrel 20 of the double-barrel hollow fiber tubular membrane adsorption equipment 1 is provided with a third pipeline 21 and a fourth pipeline 22 (as shown in fig. 1 to 4), an air inlet communicating pipeline 70 and an air outlet communicating pipeline 80 are respectively arranged between the first pipeline 11 of the first hollow fiber tubular membrane barrel 10 and the third pipeline 21 of the second hollow fiber tubular membrane barrel 20, an air outlet communicating pipeline 90 is arranged between the second pipeline 12 of the first hollow fiber tubular membrane barrel 10 and the fourth pipeline 22 of the second hollow fiber tubular membrane barrel 20, wherein the intake communication pipe 70 is provided with a first intake valve 71 and a third intake valve 73, the first intake valve 71 is close to the first pipeline 11, and the third intake valve 73 is close to the third pipeline 21, so that the gas flow direction in the intake communication pipeline 70 can be controlled through the first intake valve 71 and the third intake valve 73, the air outlet connecting pipe 80 is provided with a first air outlet valve 81 and a third air outlet valve 83, the first air outlet valve 81 is close to the first pipeline 11, and the third air outlet valve 83 is close to the third pipeline 21, so that the air flow direction in the air outlet communication pipeline 80 can be controlled by the first air outlet valve 81 and the third air outlet valve 83, and the air outlet communication pipeline 90 is provided with a second air outlet valve 92 and a fourth air outlet valve 94, the second exhaust valve 92 is close to the second pipeline 12, and the fourth exhaust valve 94 is close to the fourth pipeline 22, so that the gas flow direction in the exhaust communication pipeline 90 can be controlled through the second exhaust valve 92 and the fourth exhaust valve 94.

The second pipe 12 of the first hollow fiber tubular membrane cylinder 10 is connected to a second extension pipe 121, the second extension pipe 121 is provided with a second extension valve 1211 and a second extension flow-limiting valve 1212 (as shown in fig. 1 to 4), the gas flow direction in the second extension pipe 121 is controlled by the second extension valve 1211, the gas in the second extension pipe 121 is limited by the second extension flow-limiting valve 1212 to flow out from the other end, the fourth pipe 22 of the second hollow fiber tubular membrane cylinder 20 is connected to a fourth extension pipe 221, the fourth extension pipe 221 is provided with a fourth extension valve 2211 and a fourth extension flow-limiting valve 2212 (as shown in fig. 1 to 4), the gas flow direction in the fourth extension pipe 221 is controlled by the fourth extension valve 2211, and the gas in the fourth extension pipe 221 is limited by the fourth extension flow-limiting valve 2212 to flow out from the other end.

The main steps of the oil and gas treatment method (as shown in fig. 5) include step S100 of oil and gas delivery: oil gas is delivered into the intake communication pipe 70 through the other end of the oil gas delivery pipe 30. After the step S100 is completed, the next step S110 is performed.

The air intake communication pipeline 70 is connected to the oil gas transmission pipeline 30, and one end of the oil gas transmission pipeline 30 is connected to an oil gas generation place (not shown), wherein the oil gas generation place is any one of oil gas (disposable oil gas) in an oil unloading process of the oil tank truck, oil gas (secondary oil gas) in an oil filling process, and oil gas (tertiary oil gas) exhaled by an underground oil tank. In addition, the oil gas transmission pipeline 30 is provided with an oil gas control valve 31, and the flow of the oil gas entering the oil gas transmission pipeline 30 is controlled by the oil gas control valve 31.

In addition, the next step, step S110, is to perform hydrocarbon adsorption: then enters the first hollow fiber tubular membrane barrel 10 for oil gas adsorption through the first pipeline 11 communicated with the air inlet communicating pipeline 70. After the step S110 is completed, the next step S120 is performed.

When the first hollow fiber tubular membrane barrel 10 is set to the adsorption mode (as shown in fig. 1 and fig. 3), the second hollow fiber tubular membrane barrel 20 is set to the desorption mode, wherein the first air intake valve 71 disposed on the air intake communication pipeline 70 and close to the first pipeline 11 is in an open state, so that the oil gas can flow through the first air intake valve 71 of the air intake communication pipeline 70 and enter the first hollow fiber tubular membrane barrel 10 for adsorption, and the third air intake valve 73 disposed on the air intake communication pipeline 70 and close to the third pipeline 21 is in a closed state.

In addition, the next step, step S120, generates a purge gas: the purge gas generated after the oil-gas adsorption is output to the exhaust communication pipe 90 through the second pipe 12. After the step S120 is completed, the next step S130 is performed.

The second exhaust valve 92 disposed on the exhaust communication pipeline 90 and close to the second pipeline 12 is opened, so that the purified gas generated after the oil-gas adsorption in the first hollow fiber tubular membrane drum 10 flows through the second exhaust valve 92 of the exhaust communication pipeline 90 via the second pipeline 12 and enters the exhaust conveying pipeline 40 (as shown in fig. 1 and 3), and the purified gas is exhausted from the other end of the exhaust conveying pipeline 40, and the fourth exhaust valve 94 disposed on the exhaust communication pipeline 90 and close to the fourth pipeline 22 is closed.

Further, the next step proceeds to step S130 of purge gas exhaust: the purge gas is discharged through the other end of the exhaust gas transfer line 40 communicating with the exhaust gas communication line 90. After the step S130 is completed, the next step S140 is performed.

The exhaust gas communication pipe 90 is connected to one end of the exhaust gas conveying pipe 40, and the other end of the exhaust gas conveying pipe 40 has two embodiments, wherein the first embodiment is that the other end of the exhaust gas conveying pipe 40 is connected to a chimney 41 (as shown in fig. 1), and the second embodiment is that the other end of the exhaust gas conveying pipe 40 is conveyed to the atmosphere (as shown in fig. 2). On the basis, the purge gas generated after the first hollow fiber tubular membrane barrel 10 is subjected to the oil-gas adsorption can be output to the exhaust communicating pipeline 90 through the second pipeline 12, and then the purge gas is discharged through the other end of the exhaust conveying pipeline 40 (as shown in fig. 1), or the purge gas generated after the second hollow fiber tubular membrane barrel 20 is subjected to the oil-gas adsorption can be output to the exhaust communicating pipeline 90 through the fourth pipeline 22, and then the purge gas is discharged through the other end of the exhaust conveying pipeline 40 (as shown in fig. 2 and 4).

In addition, the next step is the oil gas adsorption switching step S140: after a period of time, the oil gas enters the second hollow fiber tubular membrane barrel 20 through the third pipeline 21 communicated with the air inlet communication pipeline 70 for oil gas adsorption. After the step S140 is completed, the next step S150 is performed.

In practical operation, the first hollow fiber tubular membrane barrel 10 and the second hollow fiber tubular membrane barrel 20 of the dual-barrel hollow fiber tubular membrane adsorption apparatus 1 have different selections of the adsorption mode and the desorption mode, wherein the first implementation selection is set by time (not shown), for example, set to 10 minutes (not limited in this embodiment), when the time is up, the first hollow fiber tubular membrane barrel 10, which is originally in the adsorption mode, is changed to the desorption mode, and the second hollow fiber tubular membrane barrel 20, which is originally in the desorption mode, is changed to the adsorption mode. The second implementation option is set by concentration (not shown), and a concentration detector (not shown) is disposed through the exhaust gas conveying pipeline 40, so that the first hollow fiber tubular membrane barrel 10 and the second hollow fiber tubular membrane barrel 20 can switch between the adsorption mode and the desorption mode according to the concentration detected by the concentration detector.

In addition, the next step is to desorb the concentrated oil gas in step S150: and the first hollow fiber tubular membrane barrel 10 desorbs the adsorbed oil gas into concentrated oil gas. After the step S150 is completed, the next step S160 is performed.

The desorption discharge pipeline 51 has a vacuum pump 511, when the first hollow fiber tubular membrane drum 10 is performing Vacuum Swing Adsorption (VSA) desorption and performing desorption by vacuum pumping, the first gas outlet valve 81 additionally disposed on the gas outlet communication pipeline 80 and close to the first pipeline 11 is in an open state (as shown in fig. 2 and 4) to desorb the adsorbed oil gas in the first hollow fiber tubular membrane drum 10 to form concentrated oil gas, and the third gas outlet valve 83 disposed on the gas outlet communication pipeline 80 and close to the third pipeline 21 is in a closed state.

In addition, the next step is step S160 of concentrated hydrocarbon delivery: and the concentrated oil gas is transported to the outlet communication pipeline 80 through the first pipeline 11. After the step S160 is completed, the next step S170 is performed.

One end of the desorption/discharge pipeline 51 is connected to the gas outlet communication pipeline 80, so that the concentrated oil gas desorbed from the first hollow fiber tubular membrane drum 10 can be output to the gas outlet communication pipeline 80 through the first pipeline 11, and then conveyed to the desorption/discharge pipeline 51 through the gas outlet communication pipeline 80 (as shown in fig. 2 and 4).

In addition, the next step is to perform step S170 of concentrated hydrocarbon absorption: then the concentrated oil gas is transported to the washing absorption tower 50 for concentrated oil gas absorption through the desorption discharge pipeline 51 communicated with the gas outlet communication pipeline 80. After the step S170 is completed, the next step S180 is performed.

The above-mentioned washing absorption tower 50 is provided with a desorption discharge pipeline 51 and a washing exhaust pipeline 52, and the other end of the desorption discharge pipeline 51 is connected with the washing absorption tower 50 (as shown in fig. 1 to fig. 4), wherein the connection of the washing absorption tower 50 is a place where the washing absorption tower 50 is provided with an absorbent 501, so that the concentrated oil gas conveyed by the desorption discharge pipeline 51 can be fully contacted with the absorbent 501 and absorbed by the absorbent 501. The desorption discharge pipeline 51 is further provided with a vacuum pump 511 (as shown in fig. 1 to 4), and the vacuum pump 511 can desorb the oil gas in the first hollow fiber tubular membrane adsorption barrel 10 or the second hollow fiber tubular membrane adsorption barrel 20 through Vacuum Swing Adsorption (VSA), and can push the concentrated oil gas desorbed from the gas outlet communication pipeline 80 into the washing absorption tower 50 through the desorption discharge pipeline 51.

In addition, at least one absorbent 501 and at least one absorbent filler 502 (as shown in fig. 1 to fig. 4) are disposed in the washing and absorbing tower 50, wherein the absorbent 501 is disposed below the washing and absorbing tower 50, the absorbent 501 is liquid, the disclosure adopts diesel, and the absorbent 501 can also be other liquid capable of contacting sufficiently, so as to improve the absorption efficiency of the absorbent. In addition, the absorber 502 is disposed in the middle of the scrubber 50, and the absorber 502 is mainly used to increase the contact area between the liquid and the gas flow, so as to increase the reaction absorption surface area, wherein the absorber 502 is raschig ring intalox saddle packing or corrugated packing, which provides a large gas-liquid contact surface, so that the absorber 502 can be easily wetted by the liquid, and only the wetted surface is the gas-liquid contact surface. The absorber packing 502 may be stacked (stacked) or pushed (stacked) to provide sufficient contact between the gas and the liquid.

The above-mentioned washing absorption tower 50 is provided with a circulation pipeline 60 (as shown in fig. 1 to fig. 4), one end of the circulation pipeline 60 is connected to the lower portion of the washing absorption tower 50, that is, the position of the absorbent 501, and the other end of the circulation pipeline 60 extends into the upper portion of the washing absorption tower 50, that is, the upper portion of the absorption tower filler 502, and the other end of the circulation pipeline 60 is provided with at least one sprinkler 61, so that the absorbent 501 located at the lower portion of the washing absorption tower 50 can be transported to the upper portion of the washing absorption tower 50 through the circulation pipeline 60, and sprayed from the upper portion of the washing absorption tower 50 by the sprinkler 61, so as to flow through the absorption tower filler 502 located at the middle portion of the washing absorption tower 50, so that the absorption tower filler 502 can be attached with a film (not shown), and when the gas passes through the gap of the absorption tower filler 502, the gas can be absorbed by the film and removed. The circulation pipeline 60 is provided with a circulation pump 62 (as shown in fig. 1 to 4) to push the absorbent 501 from one end of the circulation pipeline 60 to the other end of the circulation pipeline 60, so as to have a lifting effect.

Further, the next step proceeds to step S180 of purge gas discharge: the purge gas generated after the absorption of the concentrated oil gas by the scrubber absorber 50 can be discharged through the scrubber exhaust line 52.

One end of the purge exhaust pipe 52 is connected to the purge absorption tower 50, and the other end of the purge exhaust pipe 52 has two embodiments, wherein the first embodiment is that the other end of the purge exhaust pipe 52 is connected to a chimney 41 (as shown in fig. 2), and the second embodiment is that the other end of the purge exhaust pipe 52 is delivered to the atmosphere (as shown in fig. 1), so that the purge gas generated after the absorption of the concentrated hydrocarbon gas by the purge absorption tower 50 can be exhausted to the outside atmosphere through the purge exhaust pipe 52.

Furthermore, another step (as shown in fig. 6) of the present disclosure is to establish that after the purge gas is discharged in step S180, the method includes the following steps, step S200, returning the purge gas: the other end of the purge exhaust line 52 is connected to the oil and gas transmission line 30, so as to return the purge gas in the purge exhaust line 52 to the oil and gas transmission line 30.

The other end of the washing exhaust pipe 52 is connected to the oil-gas transmission pipeline 30 (as shown in fig. 3 and 4), and mainly the washing absorption tower 50 absorbs the concentrated oil-gas to generate the purified gas containing lean oil-gas, so that the purified gas generated by the washing absorption tower 50 after concentrated oil-gas absorption can be returned to the oil-gas transmission pipeline 30 through the washing exhaust pipe 52, so that the purified gas in the washing exhaust pipe 52 can be mixed with the oil-gas in the oil-gas transmission pipeline 30, and then is transmitted to the air intake communication pipeline 70 through the other end of the oil-gas transmission pipeline 30, and enters the first hollow fiber tubular membrane drum 10 for oil-gas re-adsorption through the first pipeline 11 communicated with the air intake communication pipeline 70 (as shown in fig. 3), or the third pipeline 21 communicated with the air intake communication pipeline 70 enters the second hollow fiber tubular membrane drum 20 for oil-gas re-adsorption (as shown in fig. 4).

When the second hollow fiber tubular membrane barrel 20 is set to the adsorption mode (as shown in fig. 2 and 4), the first hollow fiber tubular membrane barrel 10 is set to the desorption mode, wherein the third air intake valve 73 disposed on the air intake communication pipeline 70 and close to the third pipeline 21 is in an open state, so that the oil gas can flow through the third pipeline 21 via the third air intake valve 73 of the air intake communication pipeline 70 and enter the second hollow fiber tubular membrane barrel 20 for adsorption, and the first air intake valve 71 disposed on the air intake communication pipeline 70 and close to the first pipeline 11 is in a closed state. A fourth exhaust valve 94 disposed on the exhaust communication pipeline 90 and close to the fourth pipeline 22 is opened to allow the purified gas generated by the oil-gas adsorption in the second hollow fiber tubular membrane drum 20 to flow through the fourth exhaust valve 94 of the exhaust communication pipeline 90 via the fourth pipeline 22 and enter the exhaust conveying pipeline 40, and the purified gas is exhausted from the other end of the exhaust conveying pipeline 40, and a second exhaust valve 92 disposed on the exhaust communication pipeline 90 and close to the second pipeline 12 is closed.

When the second hollow fiber tubular membrane drum 20 is in the desorption mode (as shown in fig. 1 and 3) and the first hollow fiber tubular membrane drum 10 is in the adsorption mode, the desorption discharge pipeline 51 has a vacuum pump 511, and when the second hollow fiber tubular membrane drum 20 is in Vacuum Swing Adsorption (VSA) desorption and is subjected to vacuum pumping for desorption, the third gas outlet valve 83, which is additionally disposed on the gas outlet communication pipeline 80 and is close to the third pipeline 21, is in an open state, so that the adsorbed gas and oil in the second hollow fiber tubular membrane drum 20 are desorbed and adsorbed into concentrated gas and oil, and flows through the third gas outlet valve 83 of the gas outlet communication pipeline 80 through the third pipeline 21, enters the desorption discharge pipeline 51, and is conveyed to the lower portion of the washing absorption tower 50 to allow the absorbent 501 to be absorbed, and finally, the washing absorption tower 52 absorbs the concentrated gas and is disposed on the washing absorption tower 50, and the first gas outlet pipeline 81 is in a closed state.

From the above detailed description, it will be apparent to those skilled in the art that the foregoing objects and advantages of the present disclosure are achieved and are in accordance with the requirements of the patent laws.

The foregoing is merely a preferred embodiment of the disclosure, which should not be taken as limiting the scope of the disclosure; therefore, simple equivalent changes and modifications made according to the claims and the disclosure of the present disclosure should still fall within the scope of the present disclosure.

Claims

1. A hollow fiber tubular membrane oil and gas treatment system with a washing absorption tower is characterized by comprising:

the double-barrel type hollow fiber tubular membrane adsorption equipment is respectively provided with a first hollow fiber tubular membrane barrel and a second hollow fiber tubular membrane barrel, the first hollow fiber tubular membrane barrel is filled with a plurality of tubular hollow fiber tubular membrane adsorption materials, the first hollow fiber tubular membrane barrel is provided with a first pipeline and a second pipeline, the second hollow fiber tubular membrane barrel is filled with a plurality of tubular hollow fiber tubular membrane adsorption materials, the second hollow fiber tubular membrane barrel is provided with a third pipeline and a fourth pipeline, an air inlet communicating pipeline and an air outlet communicating pipeline are respectively arranged between the first pipeline and the third pipeline, and an air outlet communicating pipeline is arranged between the second pipeline and the fourth pipeline;

one end of the oil gas conveying pipeline is connected to an oil gas generating position, and the other end of the oil gas conveying pipeline is connected with the air inlet communicating pipeline;

one end of the exhaust conveying pipeline is connected with the exhaust communicating pipeline; and

a washing absorption tower, this washing absorption tower is equipped with a desorption discharge line and a washing exhaust pipe, the one end of this desorption discharge line with should give vent to anger the intercommunication tube coupling, the other end and this washing absorption tower of this desorption discharge line are connected, wherein be equipped with a vacuum pump on this desorption discharge line, the one end and this washing absorption tower of this washing exhaust pipe are connected.

2. The hollow fiber tubular membrane oil and gas treatment system with scrubbing absorption tower of claim 1, wherein the scrubbing exhaust pipe is further connected at the other end to a chimney.

3. The hollow fiber tubular membrane oil and gas treatment system with washing absorption tower as claimed in claim 1, wherein the other end of the washing exhaust pipeline is further transported to atmosphere.

4. The hollow fiber tubular membrane oil and gas treatment system with the scrubbing absorption tower of claim 1, wherein the other end of the scrubbing exhaust pipe is further connected to the oil and gas transmission pipeline.

5. The hollow fiber tubular membrane oil and gas treatment system with scrubbing absorption tower of claim 1, wherein the other end of the exhaust gas transfer line is further connected to a chimney.

6. The hollow fiber tubular membrane oil and gas treatment system with scrubbing absorption tower of claim 1, wherein the other end of the exhaust gas transfer line is further transferred to the atmosphere.

7. The hollow fiber tubular membrane oil and gas treatment system with washing absorption tower of claim 1, wherein the air intake communication pipeline is further provided with a first air intake valve and a third air intake valve.

8. The hollow fiber tubular membrane oil and gas treatment system with a scrubbing and absorption tower of claim 1, wherein the gas outlet communication line further comprises a first gas outlet valve and a third gas outlet valve.

9. The hollow fiber tubular membrane oil and gas treatment system with scrubbing and absorption tower of claim 1, wherein said exhaust gas communication line further comprises a second exhaust valve and a fourth exhaust valve.

10. The hollow fiber tubular membrane oil and gas treatment system with a scrubbing and absorption tower of claim 1, wherein the second pipeline is further connected to a second extension pipeline, the second extension pipeline further having a second extension valve and a second extension restriction valve.

11. The hollow fiber tubular membrane oil and gas treatment system with scrubber absorber as recited in claim 1 wherein the fourth conduit is further connected to a fourth extension conduit, the fourth extension conduit further comprising a fourth extension valve and a fourth extension limiting valve.

12. The hollow fiber tubular membrane oil and gas treatment system with the washing absorption tower of claim 1, wherein at least one absorbent is further disposed in the washing absorption tower, and the absorbent is diesel oil.

13. The hollow fiber tubular membrane oil and gas treatment system with scrubber absorber as claimed in claim 1, wherein the scrubber absorber is further provided with at least one absorber packing.

14. The hollow fiber tubular membrane oil and gas treatment system with the washing absorption tower as claimed in claim 1, wherein the washing absorption tower is further provided with a circulation pipeline, and the other end of the circulation pipeline is provided with at least one sprinkler head.

15. The hollow fiber tubular membrane oil and gas treatment system with a scrub absorption tower of claim 14, wherein the other end of the circulation line further extends into the scrub absorption tower.

16. The hollow fiber tubular membrane oil and gas treatment system with a washing absorption tower of claim 14, wherein one end of the circulation pipeline is further connected to the lower part of the washing absorption tower, and the circulation pipeline is further provided with a circulation pump.

17. A hollow fiber tubular membrane oil gas processing method with washing absorption tower, mainly used for the hollow fiber tubular membrane oil gas processing system, characterized by that to have a pair of tubbiness hollow fiber tubular membrane adsorption equipment, an oil gas delivery line, a vent gas delivery line and a washing absorption tower, the hollow fiber tubular membrane adsorption equipment of the pair of tubbiness is divided into a first hollow fiber tubular membrane bucket and a second hollow fiber tubular membrane bucket, the first hollow fiber tubular membrane bucket is packed with the tubular hollow fiber tubular membrane adsorption material of many root canals and formed, the second hollow fiber tubular membrane bucket is packed with the tubular hollow fiber tubular membrane adsorption material of many root canals and formed, the first hollow fiber tubular membrane bucket has a first pipeline and a second pipeline, the second hollow fiber tubular membrane bucket has a third pipeline and a fourth pipeline, there are a feed air connecting line and a vent gas connecting line between the first pipeline and the third pipeline respectively, there is a vent gas connecting line between the second pipeline and the fourth pipeline, the washing absorption tower has a vent gas pipeline and a vent gas exhaust line, the vent gas exhaust pipe is equipped with a desorption step, and the desorption treatment method includes:

oil gas is conveyed: oil gas is conveyed into the air inlet communicating pipeline through the other end of the oil gas conveying pipeline;

carrying out oil gas adsorption: then enters the first hollow fiber tubular membrane barrel through a first pipeline communicated with the air inlet communication pipeline for oil gas adsorption;

generating a purge gas: outputting purified gas generated after oil and gas adsorption to the exhaust communicating pipeline through the second pipeline;

purifying gas and exhausting gas: then the purified gas is discharged through the other end of the exhaust conveying pipeline communicated with the exhaust communication pipeline;

oil gas adsorption switching: after a period of time, the oil gas enters the second hollow fiber tubular membrane barrel through a third pipeline communicated with the air inlet communication pipeline to be adsorbed by the oil gas;

desorbing the concentrated oil gas: the first hollow fiber tubular membrane barrel desorbs the adsorbed oil gas into concentrated oil gas;

conveying concentrated oil gas: and the concentrated oil gas is conveyed to the air outlet communicating pipeline through the first pipeline;

absorbing concentrated oil gas: then the concentrated oil gas is pushed to the washing absorption tower by a vacuum pump in a desorption discharge pipeline communicated with the gas outlet communication pipeline for concentrated oil gas absorption; and

purified gas discharge: the purified gas generated after the concentrated oil gas absorption through the washing absorption tower can be discharged through the washing exhaust pipeline.

18. The hollow fiber tubular membrane oil and gas treatment method with washing absorption tower of claim 17, further comprising the following steps after the purified gas discharge step:

purified gas returning: the other end of the washing exhaust pipeline is connected with the oil gas conveying pipeline so as to return purified gas in the washing exhaust pipeline to the oil gas conveying pipeline.

19. The method for processing hollow fiber tubular membrane oil and gas with scrubber absorber tower as claimed in claim 17, wherein the scrubber exhaust line is further connected at the other end to a chimney.

20. The hollow fiber tubular membrane oil and gas treatment method with washing absorption tower of claim 17, wherein the other end of the washing exhaust pipeline is further transported to the atmosphere.

21. The hollow fiber tubular membrane oil and gas treatment method with scrubbing absorption tower of claim 17, wherein the other end of the exhaust gas transportation pipeline is further connected to a chimney.

22. The hollow fiber tubular membrane oil and gas treatment method with scrubbing absorption tower of claim 17, wherein the other end of the exhaust gas transportation pipeline is further transported to the atmosphere.

23. The method of claim 17, wherein the inlet connection line further comprises a first inlet valve and a third inlet valve.

24. The hollow fiber tubular membrane oil and gas treatment method with washing absorption tower of claim 17, wherein the gas outlet communication pipeline is further provided with a first gas outlet valve and a third gas outlet valve.

25. The method of claim 17, wherein the vent line further comprises a second vent valve and a fourth vent valve.

26. The method of claim 17, wherein the second pipeline is further connected to a second extension pipeline, the second extension pipeline further comprising a second extension valve and a second extension restriction valve.

27. The method of claim 17, wherein the fourth line is further connected to a fourth extension line, the fourth extension line further comprising a fourth extension valve and a fourth extension restriction valve.

28. The hollow fiber tubular membrane oil and gas treatment method with washing absorption tower of claim 17, wherein the washing absorption tower is further provided with at least one absorbent, and the absorbent is diesel oil.

29. The hollow fiber tubular membrane oil and gas treatment method with washing absorption tower of claim 17, wherein the washing absorption tower is further provided with at least one absorption tower packing.

30. The method as claimed in claim 17, wherein the scrub absorption tower is further provided with a circulation pipeline, and the other end of the circulation pipeline is provided with at least one spraying head.

31. The hollow fiber tubular membrane oil and gas treatment process with scrubber absorber tower as in claim 30 wherein the other end of the circulation line further extends into the scrubber absorber tower.

32. The method of claim 30, wherein one end of the circulation line is further connected to a position below the scrubbing-absorbing tower, and the circulation line is further provided with a circulation pump.