CN220238204U - Sour water stripping tail gas/oil gas purifying device - Google Patents
Sour water stripping tail gas/oil gas purifying device Download PDFInfo
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- CN220238204U CN220238204U CN202321453199.4U CN202321453199U CN220238204U CN 220238204 U CN220238204 U CN 220238204U CN 202321453199 U CN202321453199 U CN 202321453199U CN 220238204 U CN220238204 U CN 220238204U
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- Prior art keywords
- absorption
- tail gas
- oil gas
- gas
- purifier
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 238000010521 absorption reaction Methods 0.000 claims abstract description 125
- 239000007788 liquid Substances 0.000 claims abstract description 96
- 239000002253 acid Substances 0.000 claims abstract description 49
- 238000000746 purification Methods 0.000 claims abstract description 34
- 230000010355 oscillation Effects 0.000 claims abstract description 33
- 239000012629 purifying agent Substances 0.000 claims abstract description 17
- 150000001412 amines Chemical class 0.000 claims description 36
- 239000000945 filler Substances 0.000 claims description 15
- 230000008929 regeneration Effects 0.000 claims description 12
- 238000011069 regeneration method Methods 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 105
- 238000005507 spraying Methods 0.000 description 19
- 238000012856 packing Methods 0.000 description 7
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 2
- 229940043276 diisopropanolamine Drugs 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to acid water stripping tail gas/oil gas purifying equipment, and discloses an acid water stripping tail gas/oil gas rotary-jet oscillation absorption purifying device, which comprises a shell (1), wherein a first absorption purifier and a second absorption purifier for absorbing and purifying the acid water stripping tail gas/oil gas are arranged in the shell (1) from bottom to top, an air inlet (6) for inputting the acid water stripping tail gas/oil gas, a first liquid inlet (8) for inputting an absorption purifying agent to the first absorption purifier, a second liquid inlet (11) for inputting the absorption purifying agent to the second absorption purifier and an exhaust outlet (10) for releasing purified gas are arranged at the outer side of the shell (1) from bottom to top, and a liquid outlet (7) is arranged at the bottom of the shell (1). The device is classified purification, ensures the purification effect and ensures long-term stable operation.
Description
Technical Field
The utility model relates to an acidic water stripping tail gas/oil gas purifying device, in particular to an acidic water stripping tail gas/oil gas rotary-jet oscillation absorption purifying device.
Background
In the production process of petrochemical industry, organic compounds such as sulfur, nitrogen, oxygen and the like contained in raw materials can be further converted and decomposed under a series of process conditions such as heating, pressurizing, catalytic oxidation or cracking and the like to generate a large amount of toxic and harmful substances such as hydrogen sulfide, and in recent years, the acid water stripping tail gas/oil gas is accepted as environmental pollution in the world, and according to the current standard of emission standards of pollutants in petroleum refining industry (GB 31570), the country has set clear requirements for the emission of petrochemical refining enterprises. Several methods for purifying acid water stripping tail gas/oil gas exist at present, such as catalytic oxidation, water washing, cooling, adsorption, chemical absorption, oxidation, combustion, microbiological and the like, wherein the adsorption/absorption method has wide treatment application.
At present, the adsorption/absorption method is generally adopted in China, two types of spraying towers and filling towers are commonly adopted, gaps exist between spraying surfaces of the spraying towers due to overlarge spraying distance, when waste gas passes through a water layer, water curtains are squeezed open by air flow at joints of a plurality of nozzle water layers to form a plurality of air flow channels, and therefore the purification effect is not ideal in actual use; the packing tower is random packing or regular packing, and because particulate matters exist in the waste gas, the purified particulate matters remain in the packing, so that the packing can be blocked after being actually used for a period of time, and the normal and stable operation is further influenced.
Therefore, there is a need to design a sour water stripped tail gas/oil gas purification device to overcome or alleviate the above-mentioned technical problems.
Disclosure of Invention
The utility model aims to provide an acidic water stripping tail gas/oil gas purifying device which is used for graded purification, ensures the purifying effect and can ensure long-term stable operation.
In order to solve the technical problems, the utility model provides an acid water stripping tail gas/oil gas purifying device, which comprises a shell, wherein a first absorption purifier and a second absorption purifier for absorbing and purifying the acid water stripping tail gas/oil gas are arranged in the shell from bottom to top, an air inlet for inputting the acid water stripping tail gas/oil gas, a first liquid inlet for inputting an absorption purifying agent into the first absorption purifier, a second liquid inlet for inputting the absorption purifying agent into the second absorption purifier and an air outlet for releasing purified gas are arranged on the outer side of the shell from bottom to top, the first absorption purifier is configured to enable the acid water stripping tail gas/oil gas entering the first absorption purifier to form a strong cyclone flow field, and the absorption purifying agent entering the first absorption purifier is cut, crushed and atomized through the strong cyclone flow field so as to realize the absorption of the acid water stripping tail gas/oil gas by the absorption purifying agent; the second absorption purifier comprises a filler and a liquid uniform distributor which are arranged from bottom to top, wherein the liquid uniform distributor is configured to enable the absorption purifier input into the second absorption purifier to be uniformly distributed in the filler and flow downwards, so that the absorption purifier can carry out secondary absorption on the sour water stripping tail gas/oil gas.
Further, a demister for demisting the purified acid water stripping tail gas/oil gas is further arranged in the shell, and the demister is arranged above the second absorption purifier.
Specifically, the demister is a wire mesh demister for separating gas and mist droplets.
Further, the absorption purifying agent is an amine liquid.
Further, a solvent regeneration device for converting the rich amine liquid into the lean amine liquid is arranged outside the shell, and the solvent regeneration device is respectively connected with the liquid outlet, the first liquid inlet and the second liquid inlet.
Specifically, the first absorption purifier is a multistage rotary spraying oscillation absorption purification assembly which is connected in series in the shell from top to bottom, the rotary spraying oscillation absorption purification assembly comprises two tower plates which are fixed in the shell and are arranged in parallel from top to bottom, and a plurality of rotary spraying oscillation absorption purifiers which penetrate through and are fixedly connected with the two tower plates, and the rotary spraying oscillation absorption purifiers are uniformly distributed along the circumferential direction of the tower plates.
Specifically, the rotary spraying oscillation absorption purifier is of a circular tubular structure, a cyclone inlet pipeline for inputting the acid water stripping tail gas/oil gas is arranged at the bottom of the rotary spraying oscillation absorption purifier along the circumferential tangential direction, an exhaust pipe for exhausting gas is arranged at the top of the rotary spraying oscillation absorption purifier, a flow guide pipe for guiding the acid water stripping tail gas/oil gas is arranged in the rotary spraying oscillation absorption purifier, an exhaust pipe umbrella cap for preventing liquid drops from dropping into the exhaust pipe is arranged above the exhaust pipe, and the acid water stripping tail gas/oil gas enters the rotary spraying oscillation absorption purifier from the cyclone pipeline after being pressurized, and moves in a spiral mode to the exhaust pipe direction to form a strong cyclone flow field under the guidance of the flow guide pipe.
Specifically, the side wall of the rotary spraying oscillation absorption purifier is provided with a plurality of jet holes for injecting the lean amine liquid.
Specifically, the two trays and the housing form a cavity surrounding the jet aperture.
Specifically, a downcomer for guiding the rich amine liquid to flow to the liquid outlet is arranged between the two tower plates.
Through the technical scheme, the utility model has the following beneficial effects:
the utility model provides an acid water stripping tail gas/oil gas purifying device, which cuts, breaks and atomizes an absorption purifying agent through a first absorption purifier, enlarges the mass transfer area to achieve good absorption and purification effects, and fully contacts the purified acid water stripping tail gas/oil gas with the purifying agent in a second absorption purifier again, thereby further ensuring the purification and absorption effects of the acid water stripping tail gas/oil gas. The acid water stripping tail gas/oil gas is purified and absorbed through the first absorption purifier, so that particles are hardly entrained in the acid water stripping tail gas/oil gas after the first purification, no particles remain in the filler in the second purification process, the filler is prevented from being blocked to affect the use, and further the filler can stably operate for a long time.
In addition, a solvent regeneration device for converting the rich amine liquid into the lean amine liquid is arranged outside the shell, and the solvent regeneration device is respectively connected with a liquid outlet, a first liquid inlet and a second liquid inlet. The replenishing work of the lean amine liquid and the cleaning work of the rich amine liquid are converted into the operation and maintenance work of the solvent regeneration device, so that the work is simplified, the amine liquid is recycled, and the resource is saved.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic diagram of the structure of the acid water stripping tail gas/oil gas purification device of the present utility model;
FIG. 2 is a schematic diagram of the structure of a rotary jet oscillating absorption purifier of the present utility model;
FIG. 3 is a schematic structural view of the acid water stripping tail gas/oil gas purification device of the present utility model.
Description of the reference numerals
1 casing 2 silk screen foam remover
3 packing 4 rotary spraying oscillation absorption purifier
5 downcomer 6 inlet opening
7 liquid outlet 8 first liquid inlet
9 liquid equipartition ware 10 gas vent
11 second liquid inlet 12 tower plate
13 solvent regeneration device 41 exhaust pipe
42 draft tube 43 cyclone inlet duct
44 exhaust pipe umbrella cap
Detailed Description
The following detailed description of the embodiments of the utility model is provided in connection with the accompanying drawings, it being understood that the embodiments described herein are for purposes of illustration and explanation only, and the scope of the utility model is not limited to the following embodiments.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "arranged," and "connected" are to be construed broadly, and for example, the connection may be a direct connection, an indirect connection via an intermediary, a fixed connection, a removable connection, or an integral connection; either directly or indirectly via intermediate connectors, or by communication between or interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of such features, such that the features defining "first," "second," "third," or the like, may explicitly or implicitly include one or more of such features.
In the present utility model, unless otherwise indicated, directional terms such as "upper and lower" are defined with respect to upper and lower directions of corresponding components, and "lateral and longitudinal" are defined with respect to directions in which respective structural layers are disposed for use, and in particular, in the drawings provided in the present utility model, the azimuth or positional relationship is used based on the azimuth or positional relationship shown in the drawings, for convenience of description and simplification of the description only, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model; the directional terms of the present utility model should be construed in connection with its actual installation state.
Referring to fig. 1, the utility model provides an acid water stripping purification absorption device, which comprises a shell 1, wherein a first absorption purifier and a second absorption purifier for absorbing and purifying acid water stripping tail gas/oil gas are arranged in the shell 1 from bottom to top, an air inlet 6 for inputting acid water stripping tail gas/oil gas, a first liquid inlet 8 for inputting absorption purifying agent into the first absorption purifier, a second liquid inlet 11 for inputting absorption purifying agent into the second absorption purifier and an exhaust port 10 for releasing purified gas are arranged on the outer side of the shell 1 from bottom to top, a liquid outlet 7 is arranged at the bottom of the shell 1, and the first absorption purifier is configured to enable the acid water stripping tail gas/oil gas entering the first absorption purifier to form strong cyclone gas and cut, crush and atomize the water vapor purifying agent entering the first absorption purifier through a strong cyclone gas flow field so as to realize the absorption of the acid stripping tail gas/oil gas by the absorption purifying agent; the second absorption purifier comprises a filler 3 and a liquid distributor 9 which are arranged from bottom to top, wherein the liquid distributor 9 is configured to enable the absorption purifier input into the second absorption purifier to be uniformly distributed in the filler 3 and flow downwards, so that the absorption purifier can carry out secondary absorption on the acid water stripping tail gas/oil gas. Before the acid water stripping tail gas/oil gas is input into the air inlet 6, the air pump is required to be used for pressurizing, so that the acid water stripping tail gas/oil gas entering the first absorption purifier forms a strong cyclone flow field, is cut, crushed and atomized to enter the absorption purifier in the acid water stripping tail gas/oil gas, the mass transfer area is enlarged, the absorption purification effect is further improved, the liquid uniform distributor 9 uniformly distributes the absorption purifier in the filler 3 and flows downwards, the acid water stripping tail gas/oil gas is fully purified in the filler 3, the filler 3 is any one of regular filler and random packing, the treatment effect of the selected filler 3 on hydrogen sulfide is more than 80%, in addition, the acid water stripping tail gas/oil gas firstly completes purification in the first absorption purifier and then enters the second absorption purifier, so that particles are hardly entrained in the acid stripping tail gas/oil gas entering the second absorption purifier, the filler 3 in the second absorption purifier can be stably used for a long time, and the continuous operation of the whole equipment can be realized, and the equipment is not lower than the design of 20 years based on the design of the grading purification.
In addition, still be provided with in the casing 1 and be used for carrying out the defroster of defogging to the acid water stripper tail gas/oil gas that passes through the purification, the defroster is arranged in the top of second absorption clarifier, and the defroster is the silk screen demister 2 preferred. The selected wire mesh demister 2 is an existing demister of any type capable of separating 98% of liquid drops in gas.
Specifically, the absorption purifier is an amine liquid. The amine liquid is selected from any one or a mixture of a plurality of Monoethanolamine (MEA), diethanolamine (DEA), diisopropanolamine (DIPA) and N-Methyldiethanolamine (MDEA), and the amine liquid after absorbing the impurity of the raw material gas is called rich amine liquid, and the amine liquid after heating and regenerating (namely removing hydrogen sulfide or carbon dioxide) is called lean amine liquid.
Further, referring to fig. 3, a solvent regeneration device 13 for converting the rich amine liquid into the lean amine liquid is provided outside the housing 1, and the solvent regeneration device 13 is connected to the liquid discharge port 7, the first liquid inlet 8, and the second liquid inlet 11, respectively. It should be noted that, the container regeneration device 13 is of any style capable of realizing the above functions, and the container regeneration device 13 is connected with the liquid outlet 7, the first liquid inlet 8 and the second liquid inlet 11 through pipelines, wherein lean amine liquid needs to be pressurized by a liquid pump before entering the first liquid inlet 8, and then can be cut, crushed and atomized after entering the first absorption purifier.
Specifically, the first absorption purifier is a multistage rotary spray oscillation absorption purification assembly which is vertically connected in series in the shell 1, the rotary spray oscillation absorption purification assembly comprises two tower plates 12 fixed in the shell 1 and arranged in parallel up and down, and a plurality of rotary spray oscillation absorption purifiers 4 penetrating through and fixedly connected with the two tower plates 12, and the rotary spray oscillation absorption purifiers 4 are uniformly distributed along the circumferential direction of the tower plates 12. When the jet-grouting vibration absorption and purification assembly is used in series in multiple stages, the number of stages is preferably 2-4, and the description needs to be made that the single-stage operation pressure drop of the jet-grouting vibration absorption and purification assembly is 1-5kPa, under the precondition that the single-stage purification effect on hydrogen sulfide is more than 98%, when the jet-grouting vibration absorption and purification assembly is used in series in multiple stages, the acid water stripping tail gas/oil gas automatically enters the next-stage jet-grouting vibration absorption and purification assembly after being purified in the first-stage jet-grouting vibration absorption and purification assembly, and the treatment capacity of the acid water stripping tail gas/oil gas can reach 50-50000 m 3 And the content of hydrogen sulfide in the gas discharged by the rotary jet oscillation absorption and purification device 4 is less than 0.3mg/m 3 。
Specifically, referring to fig. 2, the rotary spraying oscillation absorption purifier 4 is a circular tubular structure, a cyclone inlet pipe 43 for inputting the sour water stripping tail gas/oil gas is arranged at the bottom of the rotary spraying oscillation absorption purifier along the circumferential tangential direction, an exhaust pipe 41 for exhausting gas is arranged at the top of the rotary spraying oscillation absorption purifier, a flow guide pipe 42 for guiding the sour water stripping tail gas/oil gas is arranged in the rotary spraying oscillation absorption purifier, and an exhaust pipe umbrella cap 44 for preventing liquid drops from dropping into the exhaust pipe 41 is arranged above the exhaust pipe 41. It should be noted that, when there are multiple cyclone inlet pipes 43, multiple branches are generated by the pipe of the air inlet 6, and the branches are respectively led through the cyclone inlet pipes 43, so as to ensure that the acid water stripping tail gas/oil gas can enter the cyclone oscillating absorption purifier 4 tangentially, and it should be further noted that, in the using process of the device, the rich amine liquid is gathered at the liquid outlet 7 to form a liquid seal, the acid water stripping tail gas/oil gas is pressurized by the air pump and then enters the cyclone inlet pipes 43, the local air pressure in the shell 1 is increased, because the air outlet 10 is connected with the atmosphere and only one air outlet 10 is provided, the acid water stripping tail gas/oil gas can move upwards along the spiral of the guide pipe 42, so as to form a strong cyclone flow field, the lean amine liquid enters the interior of the jet flow absorbing purifier 4 through jet holes on the side wall of the jet flow absorbing purifier 4, the jet flow absorbing purifier is cut, crushed and atomized by a strong jet flow field, mist drops generate high-frequency oscillation under the action of shearing force of a turbulent flow field, the drops formed after crushing and atomizing are used for capturing hydrogen sulfide gas contained in acid water stripping tail gas/oil gas, water flows are formed on the inner wall of the jet flow absorbing purifier 4 and the side wall of a guide pipe 42, the water flows to the bottom of the jet flow absorbing purifier 4 under the action of gravity, and flows out through holes on the bottom of the jet flow absorbing purifier 4, the acid water stripping tail gas/oil gas is discharged from an exhaust pipe 41 on the top of the jet flow absorbing purifier, when the water stripping tail gas/oil gas passes through an exhaust pipe umbrella cap 44, the exhaust pipe umbrella cap 44 guides the gas to flow downwards along the inner surface of the umbrella cap, so as to purge the liquid on a tray 12, the accumulated liquid is prevented from remaining on the tray 12, the outer surface of the umbrella cap of the exhaust pipe umbrella cap 44 can prevent the liquid drops in the second absorption purifier above from dripping into the first absorption purifier, so as to avoid affecting the purifying effect of the first absorption purifier.
Further, the side wall of the jet-grouting oscillation absorption purifier 4 is provided with a plurality of jet holes for injecting lean amine liquid, the lean amine liquid is pressurized by a liquid pump and enters a cavity formed by the tower plate 12 and the shell 1 through the first liquid inlet 8, the lean amine liquid flows into the cavity from the plurality of jet holes while flowing into the cavity from the first liquid inlet 8, the diameter of the jet holes is 0.5-5 mm according to different actual working conditions, but the flow rate of the lean amine liquid flowing into the cavity is required to be ensured to be larger than the flow rate of the lean amine liquid flowing out of all the jet holes, so that the lean amine liquid can be gradually filled in the cavity and form certain pressure, a liquid column is formed when the lean amine liquid enters the jet-grouting oscillation absorption purifier 4 from the jet holes, and the liquid column is cut, crushed and atomized, and finally a good purification effect is achieved.
Furthermore, the jet holes are surrounded by a cavity formed by the two trays 12 and the housing 1. The lean amine liquid enters the cavity formed by the tower plate 12 and the shell 1 from the first liquid inlet 8 and is gradually filled into the cavity, so that the lean amine liquid in the cavity has a certain pressure.
Further, a downcomer 5 for guiding the rich amine liquid to the liquid outlet 7 is arranged between the two trays 12, and the downcomer is circular in cross section, so that the rich amine liquid generated after absorption and purification flows to the liquid outlet 7 at the bottom of the shell 1 through the downcomer.
In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "a particular implementation," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In the present utility model, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (10)
1. The acid water stripping tail gas/oil gas purifying device is characterized by comprising a shell (1), wherein a first absorption purifier and a second absorption purifier for absorbing and purifying the acid water stripping tail gas/oil gas are arranged in the shell (1) from bottom to top, an air inlet (6) for inputting the acid water stripping tail gas/oil gas, a first liquid inlet (8) for inputting an absorption purifying agent into the first absorption purifier, a second liquid inlet (11) for inputting the absorption purifying agent into the second absorption purifier and an exhaust port (10) for releasing purified gas are arranged on the outer side of the shell (1) from bottom to top, a liquid outlet (7) is arranged at the bottom of the shell (1), and the first absorption purifier is configured to enable the acid water stripping tail gas/oil gas entering the shell to form a strong cyclone flow field and cut, crush and atomize the absorption purifying agent entering the shell through the strong cyclone flow field so as to realize the absorption purifying of the acid water by the absorption purifying agent; the second absorption purifier comprises a filler (3) and a liquid uniform distributor (9) which are arranged from bottom to top, wherein the liquid uniform distributor (9) is configured to enable the absorption purifier input into the liquid uniform distributor to be uniformly distributed in the filler (3) and flow downwards, so that the absorption purifier can carry out secondary absorption on the sour water stripping tail gas/oil gas.
2. Sour water stripped tail gas/oil gas purification device according to claim 1, characterized in that a mist eliminator for demisting the purified sour water stripped tail gas/oil gas is also arranged in the housing (1), which mist eliminator is arranged above the second absorption purifier.
3. An acid water stripping tail gas/oil gas cleaning device as claimed in claim 2, characterized in that the mist eliminator is a wire mesh mist eliminator (2) for separating gas and mist droplets.
4. The sour water stripped tail gas/oil gas purification device of claim 1, wherein the absorption purifier is an amine liquid.
5. The sour water stripping tail gas/oil gas purification device according to claim 4, wherein a solvent regeneration device (13) for converting rich amine liquid into lean amine liquid is arranged outside the shell (1), and the solvent regeneration device (13) is respectively connected with the liquid outlet (7), the first liquid inlet (8) and the second liquid inlet (11).
6. The sour water stripping tail gas/oil gas purifying device according to claim 5, wherein the first absorption purifier is a multistage rotary spray oscillation absorption purifying component which is connected in series in the shell (1) up and down, the rotary spray oscillation absorption purifying component comprises two tower plates (12) which are fixed in the shell (1) and are arranged up and down in parallel, a plurality of rotary spray oscillation absorption purifiers (4) which penetrate through and are fixedly connected with the two tower plates (12), and the rotary spray oscillation absorption purifiers (4) are uniformly distributed along the circumferential direction of the tower plates (12).
7. The sour water stripping tail gas/oil gas purifying device according to claim 6, wherein the rotary jet oscillation absorption purifier (4) is of a circular tubular structure, a cyclone inlet pipeline (43) for inputting the sour water stripping tail gas/oil gas is arranged at the bottom of the rotary jet oscillation absorption purifier along the circumferential tangential direction, an exhaust pipe (41) for exhausting gas is arranged at the top of the rotary jet oscillation absorption purifier, a flow guide pipe (42) for guiding the sour water stripping tail gas/oil gas is arranged in the rotary jet oscillation absorption purifier, and an exhaust pipe umbrella cap (44) for preventing liquid drops from dropping into the exhaust pipe (41) is arranged above the exhaust pipe (41).
8. The sour water stripped tail gas/oil gas purification device according to claim 6, wherein the side wall of the rotary jet oscillating absorption purifier (4) is provided with a plurality of jet holes for injecting the lean amine liquid.
9. An acid water stripper off-gas/oil gas cleaning device according to claim 8, characterized in that the two trays (12) and the housing (1) form a cavity surrounding the jet aperture.
10. Sour water stripped tail gas/oil gas purification device according to claim 9, characterized in that a downcomer (5) for guiding the rich amine liquid to the liquid drain (7) is provided between two trays (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321453199.4U CN220238204U (en) | 2023-06-08 | 2023-06-08 | Sour water stripping tail gas/oil gas purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321453199.4U CN220238204U (en) | 2023-06-08 | 2023-06-08 | Sour water stripping tail gas/oil gas purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220238204U true CN220238204U (en) | 2023-12-26 |
Family
ID=89265635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321453199.4U Active CN220238204U (en) | 2023-06-08 | 2023-06-08 | Sour water stripping tail gas/oil gas purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220238204U (en) |
-
2023
- 2023-06-08 CN CN202321453199.4U patent/CN220238204U/en active Active
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