CN220485639U - Natural gas hydrocarbon removal equipment - Google Patents
Natural gas hydrocarbon removal equipment Download PDFInfo
- Publication number
- CN220485639U CN220485639U CN202321679706.6U CN202321679706U CN220485639U CN 220485639 U CN220485639 U CN 220485639U CN 202321679706 U CN202321679706 U CN 202321679706U CN 220485639 U CN220485639 U CN 220485639U
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- Prior art keywords
- pipeline
- inlet
- outlet
- separator
- cryogenic
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 34
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 34
- 239000003345 natural gas Substances 0.000 title claims abstract description 29
- -1 Natural gas hydrocarbon Chemical class 0.000 title claims description 7
- 239000007789 gas Substances 0.000 claims abstract description 37
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 27
- 230000020335 dealkylation Effects 0.000 claims abstract description 13
- 238000006900 dealkylation reaction Methods 0.000 claims abstract description 13
- 239000012071 phase Substances 0.000 claims abstract description 4
- 239000007791 liquid phase Substances 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000008676 import Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model relates to natural gas dealkylation equipment, wherein an inlet of a main separator is connected with an air inlet pipeline, a gas outlet of the main separator is connected with an inlet of one of precooling pipelines, an outlet of one precooling pipeline is connected with an inlet of an evaporator, an outlet of the evaporator is connected with an inlet of one cryogenic pipeline, an outlet of one cryogenic pipeline is connected with an inlet of a cryogenic separator, a gas phase outlet of the cryogenic separator is connected with an inlet of the other cryogenic pipeline, an outlet of the other cryogenic pipeline is connected with an inlet of the other precooling pipeline, an outlet of the other precooling pipeline is connected with an exhaust pipeline, a liquid phase outlet of the cryogenic separator is connected with an inlet of the other cryogenic pipeline, an outlet of the other cryogenic pipeline is connected with an inlet of the other precooling pipeline, and an outlet of the other precooling pipeline is connected with a hydrocarbon mixing tank. The advantages are that: the whole equipment has high hydrocarbon removal efficiency, low energy consumption, high operation flexibility by adopting a two-stage cooling device and wide application range of natural gas.
Description
Technical Field
The utility model relates to the technical field of natural gas dealkylation, in particular to natural gas dealkylation equipment.
Background
Natural gas produced from oil and gas fields contains some multi-carbon hydrocarbons (such as C5 and the like), and these hydrocarbons can condense with the change of temperature and pressure during the transportation process to form liquid phase matters, which adversely affect the transportation and use of the natural gas, so the natural gas needs to be dehydrated and dealkylated before transportation.
Most of the existing hydrocarbon removal equipment adopts primary cooling hydrocarbon removal treatment, the hydrocarbon removal efficiency is relatively low, the energy consumption is high, the applicable natural gas hydrocarbon removal treatment range is not large, the equipment cannot be used for natural gas treatment with different hydrocarbon contents, and the equipment is difficult to meet the current natural gas hydrocarbon removal requirements.
Accordingly, there is a need to develop a new de-hydrocarbon plant to meet current natural gas de-hydrocarbon requirements.
Disclosure of Invention
The utility model aims to provide natural gas dealkylation equipment, which effectively overcomes the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
the utility model provides a natural gas dealkylation equipment, including sled dress chassis and install main separator, the precooler, the evaporimeter, the deep cooler, low temperature separator and hydrocarbon mixing tank on above-mentioned sled dress chassis, the inlet of above-mentioned main separator is connected the inlet line, be equipped with at least three routes precooling pipeline in the above-mentioned precooler, be equipped with at least three routes deep cooling pipeline in the above-mentioned deep cooler, the gas outlet of above-mentioned main separator connects the import of one of them forecooling pipeline, the import of above-mentioned evaporimeter is connected to the export of one of them, the import of one of them deep cooling pipeline of above-mentioned evaporimeter, the import of one of them is connected to the export of one of these deep cooling pipeline, the import of another of these two ways of the gas phase export of these cryogenic separator is connected to the import of another of these deep cooling pipeline, the export of another way of these cryogenic pipeline is connected to the import of another of other pre cooling pipeline, the export of this cryogenic separator is connected to the import of another of the above-mentioned deep cooling pipeline, the export of another way hydrocarbon mixing tank is connected to the export of another of this cryogenic pipeline.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, an air cooler is connected in series with the air inlet pipe line.
The device further comprises a secondary separator, wherein the outlet of the precooling pipeline is connected with the inlet of the secondary separator, and the gas outlet of the secondary separator is connected with the hydrocarbon mixing tank.
Further, the secondary separator is a cyclone separator.
Further, the main separator is a cyclone separator.
And the gas drying device is connected in series with a pipeline of which the gas outlet of the main separator is connected with the inlet of one of the precooling pipelines.
Further, the gas drying device is a drying tower.
The beneficial effects of the utility model are as follows: the skid-mounted type hydrocarbon removal device has the advantages of reasonable structural design, more convenient transportation and use of skid-mounted type structures, high hydrocarbon removal efficiency and low energy consumption of the whole device, and large operation elasticity of the two-stage device, wide range of applicable natural gas and applicability to hydrocarbon removal treatment of natural gas with different gas volumes and different hydrocarbon contents.
Drawings
Fig. 1 is a schematic structural view of a natural gas dealkylation apparatus of the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. a main separator; 2. a precooler; 3. an evaporator; 4. a chiller; 5. a cryogenic separator; 6. a hydrocarbon mixing tank; 7. an air cooler; 8. a secondary separator; 9. and a gas drying device.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
Examples: as shown in fig. 1, the natural gas dealkylation apparatus of this embodiment includes a skid-mounted chassis, and a main separator 1, a precooler 2, an evaporator 3, a cryocooler 4, a cryogenic separator 5, and a hydrocarbon mixing tank 6 mounted on the skid-mounted chassis, wherein an inlet of the main separator 1 is connected to an intake line, at least three precooling lines are provided in the precooler 2, at least three cryogenic lines are provided in the cryocooler 4, a gas outlet of the main separator 1 is connected to an inlet of one of the precooling lines, an outlet of one of the precooling lines is connected to an inlet of the evaporator 3, an outlet of the evaporator 3 is connected to an inlet of one of the cryogenic lines, an outlet of one of the cryogenic lines is connected to an inlet of the cryogenic separator 5, an outlet of the cryogenic separator 5 is connected to an inlet of the other cryogenic line, an outlet of the other cryogenic line is connected to an inlet of the precooling line, an outlet of the other precooling line is connected to an outlet of the precooling line, an outlet of the other cryogenic line is connected to an outlet of the cryogenic tank, and an outlet of the cryogenic tank is connected to an inlet of the other cryogenic tank.
The hydrocarbon removal process is as follows:
the raw gas (decarbonized natural gas, taking the pressure of a device at 1.75Mpa and the flow rate of 6X 104Nm3/d as an example) enters a main separator 1 to separate oil, water and mechanical impurities, the separated raw gas sequentially enters a precooler 2 and an evaporator 3 and then enters a cryocooler 4 to be cooled below about-45 ℃, finally enters a low-temperature separator 5 to carry out gas-liquid separation, and the separated gas-phase dry gas (about-45 ℃ and 2.15 Mpa) sequentially enters the cryocooler 4 and the precooler 2 to recover cold energy and then is transported outside at about 40 ℃ or used. The low-temperature liquid hydrocarbon separated by the low-temperature separator 5 also enters the cryocooler 4, then enters the precooler 2 to recover cold energy and re-heat the cold energy, and finally enters the hydrocarbon mixing big tank. The whole process is carried out by two-stage cooling treatment of the precooler 2 and the cryocooler 4, the operation flexibility of the two-stage cooling treatment is high, the range of applicable natural gas is wide, the method can be applicable to the natural gas hydrocarbon removal treatment with different gas transmission amounts and different hydrocarbon contents, and the hydrocarbon removal efficiency is high and the energy consumption is relatively low.
In this embodiment, the precooler 2 is a conventional precooler tank, the cryocooler 4 is a conventional cryocooler tank, and the evaporator 3 is a conventional product of the prior art. What needs to be further supplemented is: the evaporator 3 is connected and matched with a fluorine machine a (refrigerator) (the connection between the evaporator and the refrigerator belongs to the conventional pipeline connection of a heat exchanger, and details are not repeated here), and heat exchange is performed, specifically, a refrigerant flowing through the fluorine machine a is connected with the tube side of the evaporator 3. The tube side of the chiller 4 is also connected and matched with a fluorine machine b (refrigerator) (the connection between the two belongs to the conventional pipeline connection of the heat exchanger, and the details are not repeated here), and the heat exchange is performed.
As a preferred embodiment, an air cooler 7 is connected in series to the intake pipe line.
In the above embodiment, the raw material gas is pre-cooled by the air cooler 7, so that the load of the subsequent two-stage cooling treatment can be reduced, and the hydrocarbon removal efficiency can be improved to a certain extent.
In this embodiment, the air cooler 7 belongs to a conventional product in the prior art, and in actual use, an adaptive model is flexibly and reasonably selected according to specific requirements, which is not described herein.
As a preferred embodiment, the device further comprises a secondary separator 8, wherein the outlet of the precooling pipeline is connected with the inlet of the secondary separator 8, and the gas outlet of the secondary separator 8 is connected with the hydrocarbon mixing tank 6.
In the above embodiment, the raw gas after hydrocarbon removal is separated once by the auxiliary separator 8 after entering the hydrocarbon mixing tank 6, and further dehydrated, thereby improving purity.
In this embodiment, the auxiliary separator 8 is a conventional cyclone separator for purifying gas, and the suitable model is flexibly and reasonably selected according to the requirement in actual use, which is not described herein.
In this embodiment, the main separator 1 is a conventional cyclone separator for purifying gas, and the suitable model is flexibly and reasonably selected according to the requirement in actual use, which is not described herein.
As a preferred embodiment, the apparatus further comprises a gas dryer 9, wherein the gas dryer 9 is connected in series to a line connecting the gas outlet of the main separator 1 and the inlet of one of the pre-cooling lines.
In the above embodiment, the raw gas is further separated from oil and water and impurities by the main separator 1, and then enters the gas drying device 9 to be deeply dehydrated to below 10PPm, so as to ensure that the water content of the processed raw gas meets the requirement.
In this embodiment, the gas drying device 9 adopts a conventional drying tower, the drying tower is filled with a 4A type molecular sieve, and the dried and dehydrated raw gas passes through the molecular sieve to remove dust, so as to improve the purity of the raw gas.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (7)
1. A natural gas dealkylation apparatus characterized by: the device comprises a skid-mounted chassis and a main separator (1), a precooler (2), an evaporator (3), a cryocooler (4), a cryogenic separator (5) and a hydrocarbon mixing tank (6) which are arranged on the skid-mounted chassis, wherein the inlet of the main separator (1) is connected with an air inlet pipeline, at least three precooling pipelines are arranged in the precooler (2), at least three precooling pipelines are arranged in the cryocooler (4), the gas outlet of the main separator (1) is connected with the inlet of one precooling pipeline, the outlet of one precooling pipeline is connected with the inlet of the evaporator (3), the outlet of the evaporator (3) is connected with the inlet of one precooling pipeline, the outlet of one cryogenic pipeline is connected with the inlet of the cryogenic separator (5), the gas phase outlet of the cryogenic separator (5) is connected with the inlet of the other cryogenic pipeline, the outlet of the cryogenic pipeline is connected with the inlet of the other precooling pipeline, the outlet of the precooling pipeline is connected with the outlet of the other precooling pipeline, the outlet of the cryogenic separator (5) is connected with the inlet of the other cryogenic pipeline, and the liquid phase of the cryogenic separator is connected with the inlet of the other cryogenic tank.
2. A natural gas dealkylation apparatus as claimed in claim 1, wherein: an air cooler (7) is connected in series on the air inlet pipe line.
3. A natural gas dealkylation apparatus as claimed in claim 1, wherein: the device also comprises a secondary separator (8), wherein the outlet of the other path of precooling pipeline is connected with the inlet of the secondary separator (8), and the gas outlet of the secondary separator (8) is connected with the hydrocarbon mixing tank (6).
4. A natural gas dealkylation apparatus as claimed in claim 3, wherein: the auxiliary separator (8) is a cyclone separator.
5. A natural gas dealkylation apparatus as claimed in claim 1, wherein: the main separator (1) is a cyclone separator.
6. A natural gas dealkylation apparatus as claimed in claim 1, wherein: the device also comprises a gas drying device (9), wherein the gas drying device (9) is connected in series on a pipeline of which the gas outlet of the main separator (1) is connected with the inlet of one of the precooling pipelines.
7. A natural gas hydrocarbon removal apparatus as defined in claim 6, wherein: the gas drying device (9) is a drying tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321679706.6U CN220485639U (en) | 2023-06-29 | 2023-06-29 | Natural gas hydrocarbon removal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321679706.6U CN220485639U (en) | 2023-06-29 | 2023-06-29 | Natural gas hydrocarbon removal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220485639U true CN220485639U (en) | 2024-02-13 |
Family
ID=89830097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321679706.6U Active CN220485639U (en) | 2023-06-29 | 2023-06-29 | Natural gas hydrocarbon removal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220485639U (en) |
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2023
- 2023-06-29 CN CN202321679706.6U patent/CN220485639U/en active Active
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