CN207362167U - The composite bed adsorbent equipment of natural gas pretreatment - Google Patents
The composite bed adsorbent equipment of natural gas pretreatment Download PDFInfo
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- CN207362167U CN207362167U CN201720753671.4U CN201720753671U CN207362167U CN 207362167 U CN207362167 U CN 207362167U CN 201720753671 U CN201720753671 U CN 201720753671U CN 207362167 U CN207362167 U CN 207362167U
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Abstract
The utility model discloses a kind of composite bed adsorbent equipment of natural gas pretreatment,It includes forecooler,Feed gas separator,Absorber processing system,Regenerate Gas Cooler,Regenerate gas separating device,Regenerate hot-air heater and cold blowing Gas Cooler,The absorber processing system includes absorber 103A,Absorber 103B,Absorber 103C,Absorber 103A,Absorber 103B,Absorber 103C is mutually independent parallel relationship and connection relation is identical,The import T1 of forecooler connects raw material feed channel,The import of the outlet P1 and feed gas separator of forecooler connect,The primary outlet of feed gas separator is connected with the import of absorber 103A,The sub-outlet of feed gas separator is connected with condensate liquid pipeline,The outlet of absorber 103A is connected with clarifier pipeline,The outlet of absorber 103A is at the same time with regenerating Gas Cooler,The import connection of cold blowing Gas Cooler.The beneficial effects of the utility model are：Technological process is simple, component device consumes less, treatment effeciency is high.
Description
Technical field
The technical field of natural gas pretreatment and preliminary working is the utility model is related to, is specifically a kind of natural gas pretreatment
Composite bed adsorbent equipment.
Background technology
Natural gas is higher and higher in the energy resource structure ratio in China as a kind of good clean energy resource.At present, China
There is the less marginal gas field of big volume production reserves, associated gas, coal bed gas field, tolerance it is smaller and apart from gas line network compared with
Far, uneconomical using applied pipeline transportation method, because without being utilized effectively, some long-term ignition are vented.
Natural gas liquefaction device can efficiently use these gas resources for being rich in methane, be recycled by technological innovation
These resources and have an economic benefit, while device is also applied for the gas at exploration and development initial stage of oil gas field, shale gas, coal bed gas etc.
Body recycles.
Natural gas will be pre-processed before natural gas liquefaction, removing can be cured miscellaneous under corrosive impurity and low temperature
Matter.Preconditioning technique now is nearly all divided into independent several pieces, such as sweetening plant, dehydration/drying device, de- heavy hydrocarbon
Device etc. so that natural gas pretreating process flow is complicated, equipment is numerous, and economic benefit is poor.
In the prior art, patent " produces the front end combination purification work of liquefied natural gas from the mixed gas rich in methane
Skill "（Application number：CN200810044270.7）, patent " natural gas purification processing method "（Application number：CN2013（102）
37053.0）, patent " coke-stove gas preparing natural gas pretreatment unit "（Application number：CN201420119978.5）, patent it is " natural
Gas purification device "（Application number：CN201520510075.4）, " the marginal gas field based on cold, heat and electricity triple supply is natural for patent
Gas preprocess method "（Application number：CN201610329280.X）All various impurity are removed respectively, technological process is complicated；Patent
" a kind of natural gas purification and dry apparatus and method "（Application number：CN201410339128.0）And it is respectively provided with depickling
Bed, de- heavy hydrocarbon bed are dehydrated, flow is also more complicated, it can be seen that, pre-processing device and system in relation to natural gas need into one
Step being improved and developing.
Utility model content
The purpose of the utility model is to overcome the shortcomings that the prior art, there is provided a kind of technological process is simple, parts are set
The composite bed adsorbent equipment pre-processed for the natural gas consumed less, treatment effeciency is high.
The purpose of this utility model is achieved through the following technical solutions：A kind of composite bed absorption of natural gas pretreatment
Device, it includes forecooler, feed gas separator, absorber processing system, regeneration Gas Cooler, regeneration gas separating device, regeneration
Hot-air heater and cold blowing Gas Cooler, the absorber processing system include absorber 103A, absorber 103B, absorber
103C, absorber 103A, absorber 103B, absorber 103C is mutually independent parallel relationship and connection relation is identical, absorption
Device 103A, absorber 103B, the quantity configuration of absorber 103C set wherein one or more according to actual needs；Forecooler bag
Containing three mutually independent paths, the import T3 and outlet P3 of forecooler are as refrigerant interface channel, the import of forecooler
T1 connects raw material feed channel, and the import of the outlet P1 and feed gas separator of forecooler connect, the primary outlet of feed gas separator with
The import connection of absorber 103A, the sub-outlet of feed gas separator is connected with condensate liquid pipeline, the outlet of absorber 103A and
Clarifier pipeline connects, and the outlet while the import with regenerating Gas Cooler, cold blowing Gas Cooler of absorber 103A are connected, and are regenerated
Gas Cooler outlet with regeneration gas separating device import be connected, regenerate gas separating device primary outlet and regenerate hot-air heater into
Mouthful connection, the sub-outlet for regenerating gas separating device is connected with condensate liquid pipeline, regenerate hot-air heater outlet and with absorber 103A
Import connection, cold blowing Gas Cooler outlet be connected with the import T2 of forecooler, regenerate gas separating device outlet and cold blowing air cooling
But it is equipped with fuel gas cross line between the outlet of device, the import of the outlet P2 of forecooler also with absorber 103A is connected, described
The import also with absorber 103A at the same time of clarifier pipeline be connected.
Further, regeneration air compressor is equipped between the regeneration gas separating device and regeneration hot-air heater；Described
Cold blowing air compressor is equipped between cold blowing Gas Cooler and forecooler, regeneration air compressor, cold blowing air compressor are reciprocating pressure
Contracting machine, diaphragm compressor or helical-lobe compressor.
Further, between the sub-outlet of the feed gas separator and condensate liquid pipeline, the outlet of absorber 103A
Control valve is equipped between clarifier pipeline, between the sub-outlet and condensate liquid pipeline of regeneration gas separating device.
Further, the forecooler, regeneration Gas Cooler, regeneration hot-air heater are plate-fin heat exchanger, shell-and-tube
Heat exchanger, wound tube heat exchanger or plate type heat exchanger.
Further, the feed gas separator, regeneration gas separating device are attached most importance to power decanter type separator, cyclone separator
Or other efficient cyclones.
Further, the absorber 103A uses composite bed, adsorbent is filled with absorber 103A, according to original
Expect flow direction of the gas in absorber 103A, the adsorbent in absorber 103A loads dehydrated adsorbent, desulfurization absorption successively
Agent, de- heavy hydrocarbon adsorbent, carbon dioxide removal adsorbent, or desulfuration adsorbent, dehydrated adsorbent, de- heavy hydrocarbon absorption are loaded successively
Agent, carbon dioxide removal adsorbent.
Further, the refrigerant for propane, propylene, butane, azeotrope, the freon for meeting environmental requirement or
Any one or more in other novel refrigerants, refrigerant are provided by independent refrigeration unit or by azeotrope compressors
There is provided.
Further, the raw gas pressure scope in the raw material feed channel is in 2.0 ~ 20Mpa.
Further, the supplement of the cold blowing gas in the regeneration gas and cold blowing Gas Cooler in the regeneration Gas Cooler is removed
Outside using purified gas, also using the indifferent gas of the flashed vapour in liquefaction ice chest, the BOG of other tail gas and LNG storage tanks, nitrogen etc
Body.
The utility model has the following advantages：
1st, the composite bed adsorbent equipment of natural gas described in the utility model pretreatment have technological process it is simple, zero
The characteristics of consumption of part equipment is few, the integrated artistic flow of the utility model is relatively easy, and principle is easy-to-understand, suitable for relevant enterprise
Technical staff grasps the system of the present apparatus, meanwhile, process equipment, valve, pipeline used in the utility model, the quantity of instrument
It is greatly reduced, reduces dosage and the consumption of component device, realize the reduction of production cost.
2nd, the composite bed adsorbent equipment of natural gas pretreatment described in the utility model also has the high spy for the treatment of effeciency
Point, the utility model concentrate on multiple technological processes and equipment together, realize substantially and a step of natural gas pretreatment is arrived
Position processing work, avoids scattered lengthy and jumbled processing work, the efficiency of natural gas pretreatment work is realized and is significantly lifted.
Brief description of the drawings
Fig. 1 is the structure diagram after the natural gas pretreating process of three absorbers is rotated by 90 ° counterclockwise；
Fig. 2 is the structure diagram after the natural gas pretreating process of two absorbers is rotated by 90 ° counterclockwise；
Fig. 3 is what the natural gas pretreating process of three absorbers of external regeneration gas/cold blowing gas was rotated by 90 ° counterclockwise
Flow chart；
Fig. 4 is the stream that the natural gas pretreating process of two absorbers of external regeneration gas/cold blowing gas is rotated by 90 ° counterclockwise
Cheng Tu；
In figure：1- raw material feed channels, 5- clarifier pipelines, 63- fuel gas cross lines, 73- condensate liquid pipelines, 101- are pre-
Cooler, 102- feed gas separators, 104- regeneration Gas Coolers, 105- regeneration gas separating devices, 106- regeneration air compressors, 107-
Regenerate hot-air heater, 108- cold blowing Gas Coolers, 109- cold blowing air compressors.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings, but the scope of protection of the utility model is not limited to
It is as described below.
As shown in Figure 1, a kind of composite bed adsorbent equipment of natural gas pretreatment, it includes forecooler 101, raw material qi leel
From device 102, absorber processing system, regeneration Gas Cooler 104, regeneration gas separating device 105, regeneration hot-air heater 107 and cold blowing
Gas Cooler 108, the absorber processing system include absorber 103A, absorber 103B, absorber 103C, absorber
103A, absorber 103B, absorber 103C are mutually independent parallel relationship and connection relation is identical, absorber 103A, absorption
Device 103B, the quantity configuration of absorber 103C set wherein one or more according to actual needs；Forecooler 101 includes three
Mutually independent path, the import T3 and outlet P3 of forecooler 101 are as refrigerant interface channel, the import T1 of forecooler 101
Raw material feed channel 1 is connect, the outlet P1 of forecooler 101 is connected with the import of feed gas separator 102, feed gas separator 102
Primary outlet is connected with the import of absorber 103A, and the sub-outlet of feed gas separator 102 is connected with condensate liquid pipeline 73, absorber
The outlet of 103A is connected with clarifier pipeline 5, and the outlet of absorber 103A is at the same time with regenerating Gas Cooler 104, cold blowing air cooling
The import connection of device 108, the outlet of regeneration Gas Cooler 104 are connected with the import of regeneration gas separating device 105, regenerate gas separating device
Import of 105 primary outlet with regenerating hot-air heater 107 is connected, and regenerates the sub-outlet and condensate liquid pipeline 73 of gas separating device 105
Connection, the outlet of regeneration hot-air heater 107 are connected with the import of absorber 103A again, and cold blowing Gas Cooler 108 exports and precooling
The import T2 connections of device 101, regenerate and are equipped with fuel gas between the outlet of gas separating device 105 and the outlet of cold blowing Gas Cooler 108
Cross line 63, the import of the outlet P2 of forecooler 101 also with absorber 103A are connected, and the clarifier pipeline 5 is at the same time
Import with absorber 103A is connected.
Further, the preferred embodiment as the utility model, the regeneration gas separating device 105 and regeneration gas
Regeneration air compressor 106 is equipped between heater 107；Cold blowing is equipped between the cold blowing Gas Cooler 108 and forecooler 101
Air compressor 109, regeneration air compressor 106, cold blowing air compressor 109 are reciprocating compressor, diaphragm compressor or screw rod pressure
Contracting machine；Between the sub-outlet and condensate liquid pipeline 73 of the feed gas separator 102, the outlet of absorber 103A and clarifier
Control valve is equipped between pipeline 5, between the sub-outlet and condensate liquid pipeline 73 of regeneration gas separating device 105；The precooling
Device 101, regeneration Gas Cooler 104, regeneration hot-air heater 107 are plate-fin heat exchanger, shell-and-tube heat exchanger, wound tube heat exchanger
Or plate type heat exchanger；The feed gas separator 102, regeneration gas separating device 105 are gravity sedimentation type separator, whirlwind point
From device or other efficient cyclones；The absorber 103A uses composite bed, and adsorbent is filled with absorber 103A, according to
According to flow direction of the unstripped gas in absorber 103A, the adsorbent in absorber 103A loads dehydrated adsorbent, desulfurization successively
Adsorbent, de- heavy hydrocarbon adsorbent, carbon dioxide removal adsorbent, or load desulfuration adsorbent, dehydrated adsorbent, de- heavy hydrocarbon successively and inhale
Attached dose, carbon dioxide removal adsorbent；The refrigerant is propane, propylene, butane, azeotrope, the fluorine for meeting environmental requirement
Any one or more in Leon or other novel refrigerants, refrigerant are provided by independent refrigeration unit or by azeotropes
Compressor provides；Raw gas pressure scope in the raw material feed channel 1 is in 2.0 ~ 20Mpa；The regeneration Gas Cooler
The supplement of the cold blowing gas in regeneration gas and cold blowing Gas Cooler 108 in 104 is in addition to using purified gas, also using in liquefaction ice chest
Flashed vapour, the BOG of other tail gas and LNG storage tanks, the inert gas of nitrogen etc.
The course of work of the utility model is as follows：By each system and component devices of the utility model according to shown in Fig. 1
Connection relation installed, the utility model can begin to use after installation is complete.（1）, raw natural gas purification flow path：It is former
Material natural gas is entered in forecooler 101 by pipeline 1 to cool, and is drawn by pipe to 2 and enters separator 102, separated condensation
Liquid enters condensate line road 73 after being depressured by valve 71, and the natural gas isolated goes out separator 102 by pipeline 11, passes through pipeline 11A/
B/C, valve 12A/B/C, convergence tube 3A/B/C enter the First in absorber 103A/B/C, go out to inhale from convergence tube 4A/B/C afterwards
Adnexa 103A/B/C, then cocurrent is entered in purification feed channel 5 to follow-up equipment from valve 13A/B/C, pipeline 14A/B/C.（2）, it is cold
Air blowing flow path：After cold blowing gas cools from forecooler 101, into cold blowing feed channel 21, then pass through pipeline 21A/B/C, valve
22A/B/C, convergence tube 3A/B/C enter second in absorber 103A/B/C, go out absorber from convergence tube 4A/B/C afterwards
103A/B/C, then entered by valve 23A/B/C, pipeline 24A/B/C in cold blowing feed channel 24 and flow to cold blowing Gas Cooler 108, it is cold
But enter cold blowing air compressor 109 by pipeline 25 after to be pressurized, the cold blowing gas after supercharging is entered cold in forecooler 101 by pipeline 26
But, cold blowing gas is circulated in the flow path of closing until cooling terminates.（3）, regeneration gas flow path：Regeneration gas from regeneration hot-air heater
107 come out, and enter absorber into regeneration feed channel 31, then by pipeline 31A/B/C, valve 32A/B/C, convergence tube 3A/B/C
The 3rd in 103A/B/C, go out absorber 103A/B/C from convergence tube 4A/B/C afterwards, then by valve 33A/B/C, pipeline 34A/
B/C enters in regeneration feed channel 34 and flows to regeneration gas cooler 104, enters regeneration gas separating device 105 by pipeline 35 after cooling,
Separated condensate liquid enters condensate line road 73 after being depressured by valve 72, and the natural gas isolated goes out separator 105 by pipeline 36, then
It is pressurized into regeneration air compressor 106, the regeneration gas after supercharging enters regeneration hot-air heater 107 by pipeline 37 and heats, regeneration gas
Circulation terminates until heating in the flow path of closing.（4）, absorber handoff procedure：Three absorber 103A, the absorbers set
103B, absorber 103C, First be in adsorbed state, second be in cold blowing（Cooling）State, the 3rd in heating（Again
It is raw）State, three absorber switchings use.The connection relation of every absorber is identical, and every absorber is intended to experience absorption, adds
Heat（Regeneration）, cold blowing（Cooling）State, recycles successively.（5）, cold blowing gas supplement and discharge：Cold blowing air-flow road is closing,
The supplement of cold blowing gas uses purified gas, enters convergence tube 3A/B/C from pipeline 41, pipeline 41A/B/C, valve 42A/B/C, is supplemented
Into absorber 103A, absorber 103B, absorber 103C；In cold blowing（Cooling）After, cold blowing gas is discharged into from the decompression of valve 62
Fuel gas system or torch.（6）, regeneration gas supplement and discharge：Regeneration gas flow path is closing, and the supplement of regeneration gas is using purification
Gas, enters convergence tube 3A/B/C from pipeline 41, pipeline 41A/B/C, valve 42A/B/C, is supplemented entering absorber 103A/B/C；
Regeneration（Heating）After, regeneration gas is discharged into fuel gas system or torch from the decompression of valve 61.
As shown in Fig. 2, the technique and device are to carry out natural gas pretreatment using two-tower process, it is different from Fig. 1 and exists
When absorber 103A is in absorption, absorber 103B is first in thermal regeneration, is then being cooled down；It is as shown in figure 3, described
Technique and device it is almost identical with Fig. 1, difference lies in regeneration gas/cold blowing gas supplement source using liquefaction ice chest in flash distillation
Gas, the BOG of LNG storage tanks and such as inert gas of nitrogen class；As shown in figure 4, the technique and device and Fig. 2 are almost
It is identical, difference lies in regeneration gas/cold blowing gas supplement source using liquefaction ice chest in flashed vapour, LNG storage tanks BOG and
Such as inert gas of nitrogen class.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form, is not to be taken as the exclusion to other embodiment, and can be used for various other combinations, modification and environment, and
It can be modified in contemplated scope described herein by the technology or knowledge of above-mentioned teaching or association area.And this area
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model
It is required that protection domain in.
Claims (9)
- A kind of 1. composite bed adsorbent equipment of natural gas pretreatment, it is characterised in that：It includes forecooler（101）, unstripped gas Separator（102）, absorber processing system, regeneration Gas Cooler（104）, regeneration gas separating device（105）, regeneration hot-air heater （107）With cold blowing Gas Cooler（108）, the absorber processing system includes absorber 103A, absorber 103B, absorber 103C, absorber 103A, absorber 103B, absorber 103C is mutually independent parallel relationship and connection relation is identical, absorption Device 103A, absorber 103B, the quantity configuration of absorber 103C set wherein one or more according to actual needs；Forecooler （101）Include three mutually independent paths, forecooler（101）Import T3 and outlet P3 as refrigerant interface channel, Forecooler（101）Import T1 connect raw material feed channel（1）, forecooler（101）Outlet P1 and feed gas separator（102）Into Mouth connection, feed gas separator（102）Primary outlet be connected with the import of absorber 103A, feed gas separator（102）Pair Outlet and condensate liquid pipeline（73）Connection, outlet and the clarifier pipeline of absorber 103A（5）Connection, the outlet of absorber 103A At the same time with regenerating Gas Cooler（104）, cold blowing Gas Cooler（108）Import connection, regenerate Gas Cooler（104）Outlet with Regenerate gas separating device（105）Import connection, regenerate gas separating device（105）Primary outlet with regeneration hot-air heater（107）Into Mouth connection, regenerates gas separating device（105）Sub-outlet and condensate liquid pipeline（73）Connection, regenerates hot-air heater（107）Outlet It is connected again with the import of absorber 103A, cold blowing Gas Cooler（108）Outlet and forecooler（101）Import T2 connections, regeneration Gas separating device（105）Outlet and cold blowing Gas Cooler（108）Outlet between be equipped with fuel gas cross line（63）, forecooler （101）Imports of the outlet P2 also with absorber 103A be connected, the clarifier pipeline（5）At the same time also with absorber 103A's Import connects.
- 2. the composite bed adsorbent equipment of natural gas pretreatment as claimed in claim 1, it is characterised in that：The regeneration gas Separator（105）With regenerating hot-air heater（107）Between be equipped with regeneration air compressor（106）；The cold blowing Gas Cooler （108）With forecooler（101）Between be equipped with cold blowing air compressor（109）, regenerate air compressor（106）, cold blowing air compressor （109）For reciprocating compressor, diaphragm compressor or helical-lobe compressor.
- 3. the composite bed adsorbent equipment of natural gas pretreatment as claimed in claim 1, it is characterised in that：The unstripped gas Separator（102）Sub-outlet and condensate liquid pipeline（73）Between, the outlet of absorber 103A and clarifier pipeline（5）Between, Regenerate gas separating device（105）Sub-outlet and condensate liquid pipeline（73）Between be equipped with control valve.
- 4. the composite bed adsorbent equipment of natural gas pretreatment as claimed in claim 1, it is characterised in that：The forecooler （101）, regeneration Gas Cooler（104）, regeneration hot-air heater（107）Changed for plate-fin heat exchanger, shell-and-tube heat exchanger, around tubular type Hot device or plate type heat exchanger.
- 5. the composite bed adsorbent equipment of natural gas pretreatment as claimed in claim 1, it is characterised in that：The unstripped gas Separator（102）, regeneration gas separating device（105）For gravity sedimentation type separator or cyclone separator.
- 6. the composite bed adsorbent equipment of natural gas pretreatment as claimed in claim 1, it is characterised in that：The absorber 103A uses composite bed, and adsorbent is filled with absorber 103A, according to flow direction of the unstripped gas in absorber 103A, Adsorbent in absorber 103A loads dehydrated adsorbent, desulfuration adsorbent, de- heavy hydrocarbon adsorbent, carbon dioxide removal absorption successively Agent, or desulfuration adsorbent, dehydrated adsorbent, de- heavy hydrocarbon adsorbent, carbon dioxide removal adsorbent are loaded successively.
- 7. the composite bed adsorbent equipment of natural gas pretreatment as claimed in claim 1, it is characterised in that：The refrigerant For propane, propylene, butane, azeotrope, meet environmental requirement freon any one or more, refrigerant is by independent Refrigeration unit is provided or provided by azeotrope compressor.
- 8. the composite bed adsorbent equipment of natural gas pretreatment as claimed in claim 1, it is characterised in that：The unstripped gas Pipeline（1）In raw gas pressure scope in 2.0 ~ 20Mpa.
- 9. the composite bed adsorbent equipment of natural gas pretreatment as claimed in claim 1, it is characterised in that：The regeneration gas Cooler（104）In regeneration gas and cold blowing Gas Cooler（108）In cold blowing gas supplement except using in addition to purified gas, also using Flashed vapour, the BOG and inert gas of LNG storage tanks to liquefy in ice chest.
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| CN201720753671.4U CN207362167U (en) | 2017-06-27 | 2017-06-27 | The composite bed adsorbent equipment of natural gas pretreatment |
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| CN201720753671.4U CN207362167U (en) | 2017-06-27 | 2017-06-27 | The composite bed adsorbent equipment of natural gas pretreatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370670A (en) * | 2018-09-20 | 2019-02-22 | 兰文旭 | The process system of carbon dioxide in natural, moisture and heavy hydrocarbon is removed simultaneously |
| WO2020018656A1 (en) * | 2018-07-17 | 2020-01-23 | Uop Llc | Processes for removing heavy hydrocarbons and water from a stream of natural gas |
-
2017
- 2017-06-27 CN CN201720753671.4U patent/CN207362167U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020018656A1 (en) * | 2018-07-17 | 2020-01-23 | Uop Llc | Processes for removing heavy hydrocarbons and water from a stream of natural gas |
| CN109370670A (en) * | 2018-09-20 | 2019-02-22 | 兰文旭 | The process system of carbon dioxide in natural, moisture and heavy hydrocarbon is removed simultaneously |
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| CP01 | Change in the name or title of a patent holder |
Address after: 611700 No. 335, Gangbei 4th Road, north area of Chengdu modern industrial port, Pidu District, Chengdu, Sichuan Patentee after: Sichuan Shudao Equipment Technology Co.,Ltd. Address before: 611700 No. 335, Gangbei 4th Road, north area of Chengdu modern industrial port, Pidu District, Chengdu, Sichuan Patentee before: CHENGDU SHENLENG LIQUEFACTION PLANT Co.,Ltd. |
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