CN101857812A - Medium-pressure shallow cooling purification system for oilfield associated gas - Google Patents
Medium-pressure shallow cooling purification system for oilfield associated gas Download PDFInfo
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- CN101857812A CN101857812A CN 201010203184 CN201010203184A CN101857812A CN 101857812 A CN101857812 A CN 101857812A CN 201010203184 CN201010203184 CN 201010203184 CN 201010203184 A CN201010203184 A CN 201010203184A CN 101857812 A CN101857812 A CN 101857812A
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Abstract
The invention relates to a medium-pressure shallow cooling purification system for oilfield associated gas, which consists of a water separator, a gas compressor, a drying skid, a water cooler, an exchanger, a refrigerator, an external cooler, a light dydrocarbon separator and a light dydrocarbon storage tank, wherein the water separator is communicated with the drying skid through the gas compressor; the drying skid is communicated with the water cooler which is communicated with the exchanger; the exchanger is communicated with the external cooler which is communicated with the light dydrocarbon separator; the light dydrocarbon separator is communicated with the exchanger through a cooling gas pipeline; a shell pass inlet of the external cooler is communicated with a coolant outlet of the refrigerator; a shell pass outlet of the external cooler is communicated with a coolant inlet of the refrigerator; a light dydrocarbon discharge port of the light dydrocarbon separator is communicated with a light dydrocarbon inlet of the light dydrocarbon storage tank; and a light dydrocarbon outlet of the light dydrocarbon storage tank is communicated with a light dydrocarbon output pipeline. The medium-pressure shallow cooling purification system can complete the purification and separation of light dydrocarbon at the purification temperature of between 0 and 20 DEG C below zero under the purification pressure of between 2 and 4 MPa, and recovers and reasonably utilizes the light dydrocarbon in oilfield associated natural gas.
Description
Technical field
The present invention relates to system that lighter hydrocarbons in the oil field association Sweet natural gas are carried out shallow cold cleaning, recovery.
Background technology
In oil field association Sweet natural gas, remove main component CH
4Often contain C outward,
2H
6, C
3H
8, C
3H
6, C
4H
10And C
4Above lighter hydrocarbons composition.In the prior art to the utilization of oil field association Sweet natural gas, generally these component separating are not directly sent downstream user to use, though these component added value height, but these components can not gasify in use, can not utilize its high added value, make Sweet natural gas have problem such as band liquid again and influence the use of Sweet natural gas.
The deep refrigeration method is mainly taked in natural gas conditioning at present, and the deep refrigeration method adopts low pressure, adiabatic expansion, and the purification temperature that needs is below-70 ℃, and pressure is lower than 0.8MPa, big, the long flow path of this method consumption cold, working cost height.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of middle pressure shallow cooling purification system of associated gas, use the purification pressure of 2～4MPa, 0～-20 ℃ purification temperature can be finished the purification separation of lighter hydrocarbons, lighter hydrocarbons in the oil field association Sweet natural gas are reclaimed and utilization rationally, reach and both solve the problem that exists in the Sweet natural gas, reduce energy expenditure again, improve the purpose of income.
For achieving the above object, the present invention is by the following technical solutions:
A kind of middle pressure shallow cooling purification system of associated gas, by water separator, gas compressor, dry sled piece, water cooler, interchanger, refrigerator, outer water cooler, light hydrocarbon separator, the lighter hydrocarbons storage tank is formed, it is characterized in that: the gas feed of described water separator is connected with oil field association natural gas line through a gas pipeline, the pneumatic outlet of water separator is communicated with the first step import of gas compressor through No. two gas pipelines, the first step outlet of gas compressor is communicated with the second stage import of gas compressor through No. three gas pipelines, the second stage outlet of gas compressor is communicated with the gas feed of dry sled piece through No. four gas pipelines, the pneumatic outlet of dry sled piece is communicated with the third stage import of gas compressor through No. five gas pipelines, the third stage outlet of gas compressor is communicated with the gas feed of water cooler through No. six gas pipelines, the pneumatic outlet of water cooler is communicated with the shell side import of interchanger through No. seven gas pipelines, the shell side outlet of interchanger is communicated with the tube side import of outer water cooler through No. eight gas pipelines, the tube side outlet of outer water cooler is communicated with the cold gas import of light hydrocarbon separator through the vapour-liquid transport pipe, the cold gas outlet of light hydrocarbon separator is communicated with the tube side import of interchanger through the cold gas pipeline, the tube side outlet of interchanger is communicated with purified natural gas body transport pipe, the shell side import of outer water cooler is communicated with the coolant outlet of refrigerator through the descending pipeline of refrigerant, the shell side outlet of outer water cooler is communicated with the coolant inlet of refrigerator through the refrigerant uphill line, the lighter hydrocarbons discharge outlet of light hydrocarbon separator is communicated with the lighter hydrocarbons import of lighter hydrocarbons storage tank through the lighter hydrocarbons transport pipe, the lighter hydrocarbons outlet of lighter hydrocarbons storage tank is connected with the lighter hydrocarbons output channel, and the gas feed with dry sled piece is communicated with the gas phase emission mouth of lighter hydrocarbons storage tank through the gas phase recovery channel; Described dry sled piece is by No. one, No. two adsorption towers, intercooler, vapour liquid separator, recirculation blower and electric heater are formed, No. one, the top of No. two adsorption towers is respectively arranged with No. one, No. two dehydration inlet mouths, No. one, the bottom of No. two adsorption towers is respectively arranged with No. one, No. two dehydration air outlets, No. one, gas feed with dry sled piece is connected No. two dehydration inlet mouths through the dehydration intake ducting respectively, No. one, No. two the dehydration air outlet is connected through the pneumatic outlet of dehydration outlet pipe with dry sled piece respectively, the inlet mouth of intercooler is communicated with the descending pipeline of resurgent gases, the air outlet of intercooler is communicated with the inlet mouth of vapour liquid separator through the regeneration pipeline, the air outlet of vapour liquid separator is connected with circulating line, circulating line is connected with the resurgent gases uphill line, recirculation blower is arranged on the circulating line, electric heater is arranged on the resurgent gases uphill line, and the pneumatic outlet of dry sled piece is connected with the resurgent gases uphill line by the tonifying Qi pipeline; No. one, No. two the dehydration inlet mouth passes through by-pass line and the descending pipe connection of resurgent gases respectively, and No. one, No. two the dehydration air outlet is connected with the resurgent gases uphill line through by-pass line respectively.
Principle of the present invention is as follows:
At first Sweet natural gas is dehydrated; The Sweet natural gas that enters light hydrocarbon recovery system must be through dehydrating, and occurs freezing stifled phenomenon when avoiding reclaiming lighter hydrocarbons.Then Sweet natural gas is compressed; Cool again; At last, the lighter hydrocarbons in the Sweet natural gas are reclaimed.
The gas dehydration drying is finished by drying sled piece, after the compression of natural gas via gas compressor secondary, enters dry sled piece by gas pipeline.Be provided with adsorption tower No. one, No. two in the dry sled piece, two towers have been held concurrently and have been adsorbed and regeneration.When an adsorption tower absorption, No. two adsorption tower regeneration; During No. two adsorption tower absorption, an adsorption tower regeneration, circulation is carried out.Adsorptive pressure is 0.6～1.4MPa, and temperature is 20-30 ℃.Regeneration pressure is 0.2～0.5MPa, and temperature is less than 150 ℃.After finishing a circulation (cycling time is according to drying sled piece processing power, the decision of required processing tolerance) fall tower.Gas dew point behind the drying and dehydrating can reach-60 ℃, satisfies the process for recovering light hydrocarbon requirement, enters three grades of imports of gas compressor and continues pressurization.
The dehydrating of Sweet natural gas, lighter hydrocarbons recovery need carry out under the processing condition of pressurization.Pressurization is finished by gas compressor.The required pressure of the middle shallow cold technology of pressure is 2～4MPa.Adopt three grades of compressions when being pressurized to the 4MPa left and right sides, gas compressor is domestic existing installation.
Cooling of Sweet natural gas finished by water cooler, interchanger, outer water cooler, refrigerator, after cooling, and at pressure 2～4MPa, under the processing condition of temperature 0～-20 ℃, contained C in the Sweet natural gas
3H
8, C
3H
6, C
4H
10And the above fully condensation of lighter hydrocarbons composition quilt of C4, become liquid state.
Refrigerator is made of equipment such as compressor for cooling fluid, by making refrigerant change liquid state into by gaseous state to refrigerant pressurization, cooling, liquid coolant evaporation heat absorption provides cold for water cooler, control the size of refrigerating duty by controlled chilling agent compressor soakage, guarantee cooler outlet natural gas temperature (0～-20 ℃) requirement.
Outer water cooler is that Sweet natural gas cools and the major equipment of light hydrocarbon recovery system, adopts the method for refrigerant evaporates gasification heat absorption to reduce the temperature of Sweet natural gas, makes Sweet natural gas obtain cooling.Gaseous coolant is got back to compressor for cooling fluid, recycles.
The cold energy of the Sweet natural gas after water cooler, interchanger make full use of water and isolate lighter hydrocarbons, the consumption of refrigerator cold practices every conceivable frugality.Water cooler, interchanger, outer water cooler all are made of shell and tube heat exchanger.
The Separation and Recovery of lighter hydrocarbons is finished by light hydrocarbon separator, lighter hydrocarbons storage tank in the Sweet natural gas.Light hydrocarbon separator is made of vapour liquid separator, and isolated liquid phase lighter hydrocarbons regularly enter the lighter hydrocarbons storage tank, recycles.
A whole set of production unit continuous operation is imported unstripped gas, output purified natural gas, the intermittently discharged lighter hydrocarbons continuously.
Description of drawings
Fig. 1 is that system of the present invention forms structural representation.
Fig. 2 is the structural representation of water separator.
Fig. 3 is the structural representation of water cooler.
Fig. 4 is the structural representation of dry sled piece.
Fig. 5 is the structural representation of outer water cooler.
Embodiment
Number in the figure
1 water separator, 101 gas feeds, 102 pneumatic outlets, 103 water port
104 liquid phase catching nets
The outlet of 2 compressors, 201 one-level imports, 202 one-levels
203 secondary imports, 204 secondarys export 206 3 grades of outlets of 205 3 grades of imports
3 dry sled piece 301 gas feeds 302 pneumatic outlets
4 water coolers, 401 gas feeds, 402 pneumatic outlets
403 entrance of cooling water, 404 cooling water outlets, 405 tubulations
The outlet of 5 interchangers, 501 shell side imports, 502 shell sides
The outlet of 503 tube side imports, 504 tube sides
6 outer water cooler 601 tube side imports 602 tube sides outlets
The outlet of 603 shell side imports, 604 shell sides
605 cooler casings, 606 tubulations, 607 cooler bulkheads
608 gas connection pipes, 609 refrigerant pipe connectings, 610 refrigerant gas-liquid separators
7 light hydrocarbon separators
701 cold gas imports, 702 cold gas export 703 lighter hydrocarbons discharge outlets
8 refrigerators, 801 coolant inlets, 802 coolant outlets
9 lighter hydrocarbons storage tanks, 901 lighter hydrocarbons imports, 902 lighter hydrocarbons export 903 gas phase emission mouths
10 electric heaters
11 adsorption towers, 111 dehydration inlet mouths, 112 dehydration air outlets
113 adsorption dehydrating agents, 114 tank bodies, 115 end sockets, 116 double-edged fine-toothed combs
12 adsorption towers, 121 dehydration inlet mouths, 122 dehydration air outlets
13 intercoolers, 14 vapour liquid separators, 15 recirculation blowers
16 drainage pipelines, 17 lighter hydrocarbons transport pipes, 18 lighter hydrocarbons output channels
19 gas phase recovery channels
23 No. three gas pipelines of 22 No. two gas pipelines of No. 21 gas pipelines
26 No. six gas pipelines of 25 No. five gas pipelines of 24 No. four gas pipelines
28 No. eight gas pipelines of 27 No. seven gas pipelines, 29 vapour-liquid transport pipes
30 cold gas pipelines, 31 purified natural gas transport pipes
The descending pipeline of descending pipeline 36 refrigerant uphill lines, 37 water coolants of 35 refrigerants
The descending pipeline of 38 water coolant uphill lines, 40 resurgent gaseses
41 dehydration intake ductings, 42 dehydration outlet pipes, 43 by-pass lines
44 by-pass lines, 45 regeneration pipelines, 46 circulating lines
48 tonifying Qi pipelines, 49 delivery pipes, 50 resurgent gases uphill lines
51 dehydration intake ductings, 52 dehydration outlet pipes, 53 by-pass lines
54 by-pass lines
Please refer to Fig. 1, Fig. 2, the present invention is a kind of middle pressure shallow cooling purification system of associated gas, is made up of water separator, gas compressor, dry sled piece, water cooler, interchanger, refrigerator, outer water cooler, light hydrocarbon separator, lighter hydrocarbons storage tank, it is characterized in that:
The gas feed 101 of water separator 1 is connected with oil field association natural gas line through a gas pipeline 21;
The pneumatic outlet 102 of water separator 1 is communicated with the first step import 201 of gas compressor 2 through No. two gas pipelines 22;
Water separator 1 adopts vapour liquid separator of the prior art, and it is made up of tank body 105 and the catching nets 104 that are arranged in the tank body 105, is provided with water port 103 in the bottom of tank body 105, and water port 103 is connected with drainage pipeline 16.
The first step of gas compressor 2 outlet 202 is communicated with the second stage import 203 of gas compressor 2 through No. three gas pipelines 23;
The second stage outlet 204 of gas compressor 2 is communicated with the gas feed 301 of dry sled piece 3 through No. four gas pipelines 24;
The pneumatic outlet 302 of dry sled piece 3 is communicated with the third stage import 205 of gas compressor 2 through No. five gas pipelines 25;
The third stage of gas compressor 2 outlet 206 is communicated with the gas feed 401 of water cooler 4 through No. six gas pipelines 26;
The pneumatic outlet 402 of water cooler 4 is communicated with the shell side import 501 of interchanger 5 through No. seven gas pipelines 27, the shell side of interchanger 5 outlet 502 is communicated with the tube side import 601 of outer water cooler 6 through No. eight gas pipelines 28, the tube side outlet 602 process vapour-liquid transport pipes 29 of outer water cooler 6 are communicated with the cold gas import 701 of light hydrocarbon separator 7, the cold gas of light hydrocarbon separator 7 outlet 702 is communicated with the tube side import 503 of interchanger 5 through cold gas pipelines 30, and the tube side of interchanger 5 exports 504 and is communicated with purified natural gas transport pipe 31.
The shell side import 603 of outer water cooler 6 is communicated with the coolant outlet 802 of refrigerator 8 through the descending pipeline 35 of refrigerant;
The shell side outlet 604 process refrigerant uphill lines 36 of outer water cooler 6 are communicated with the coolant inlet 801 of refrigerator 8;
The lighter hydrocarbons discharge outlet 703 of light hydrocarbon separator 7 is communicated with the lighter hydrocarbons import 901 of lighter hydrocarbons storage tank 9 through lighter hydrocarbons transport pipe 17, and light hydrocarbon separator 7 also adopts vapour liquid separator of the prior art, and its structure can be identical with water separator shown in Figure 2.
The lighter hydrocarbons of lighter hydrocarbons storage tank 9 outlet 902 is connected with lighter hydrocarbons output channel 18, and the gas feed 301 that the gas phase emission mouth 903 of lighter hydrocarbons storage tank 9 is prized piece 3 through gas phase recovery channels 19 and drying is communicated with.
Principle of work of the present invention is as follows:
Association Sweet natural gas in oil field is compressed into into water separator 1 by the gas feed 101 of water separator 1 certainly at first through gas pipeline 21, isolates impurity such as free-water, and moisture is through water port 103, drainage pipeline 16 dischargings, according to the tolerance size, every draining in 2-4 hour once; Gas phase is through pneumatic outlet 102, gas pipeline 22, one-level import 201 by gas compressor 2 enters gas compressor 2, through one of gas compressor 2, secondary is pressurized to 0.6～1.4MPa, secondary outlet 204 through gas compressor 2 is discharged, by No. four gas pipelines 24, enter in the dry sled piece 3 by the gas feed 301 of drying sled piece 3 and to carry out drying, dried gas is discharged through pneumatic outlet 302, by No. five gas pipelines 25, after the third stage that gets back to gas compressor 2 by three grades of imports 205 of gas compressor 2 continues to be pressurized to 2～4MPa, three grades of outlets 206 through gas compressor 2 are discharged, by gas pipeline 26, entering water cooler 4 by the gas feed 401 of water cooler 4 tentatively cools, again through pneumatic outlet 402, gas pipeline 27, gas feed 501 by interchanger 5 enters interchanger 5, after carrying out cold exchange with cold gas, through pneumatic outlet 502, gas pipeline 28, tube side import 601 by outer water cooler 6 enters outer water cooler 6, after being cooled to 0～-20 ℃, through tube side outlet 602, vapour-liquid transport pipe 29, enter light hydrocarbon separator 7 by the cold gas import 701 of light hydrocarbon separator 7 and carry out gas-liquid separation, gas phase after the separation partly is purified purified natural gas, through cold gas outlet 702, cold gas pipeline 30, after entering interchanger 5 and carry out cold recovery by the tube side import 503 of interchanger 5, enter purified natural gas transport pipe 31 through tube side outlet 504 again and carry out can, or use to the user by pipe-line transportation.
The cold of outer water cooler 6 is supplied with and is provided by refrigerator 8, refrigerant is through the descending pipeline 35 of coolant outlet 802, the refrigerant of refrigerator 8, shell side import 603 by outer water cooler 6 enters outer water cooler 6, the refrigerant evaporates refrigeration is cooled combustion gas, gaseous coolant is through shell side outlet 604, refrigerant uphill line 36, coolant inlet 801 by refrigerator 8 enters refrigerator 8, and water cooler 6, refrigerator 8 internal recycle use outside.
The water coolant of water cooler 4 is provided by waterworks, from the water coolant of water cooling tower through the descending pipeline 37 of water coolant, enter the entrance of cooling water 403 of water cooler 4 after, carry out counter current contact with Sweet natural gas gas, discharge by cooling water outlet 404, return water cooling tower through water coolant uphill line 38 and recycle.
Please refer to Fig. 4, dry sled piece 3 is made up of No. one, No. two adsorption towers 11,12, intercooler 13, vapour liquid separator 14, recirculation blower 15 and electric heaters 10, the top of No. one, No. two adsorption towers 11,12 is respectively arranged with dehydration inlet mouth 111,121 No. one, No. two, the bottom of No. one, No. two adsorption towers 11,12 is respectively arranged with 112,122, No. one, No. two dehydration inlet mouths 111,121 in No. one, No. two dehydration air outlets, and the gas feed 301 with dry sled piece 3 is connected through dehydration intake ducting 41,51 respectively; No. one, No. two dehydration air outlet 112,122 is connected through the pneumatic outlet 302 of dehydration outlet pipe 42,52 with dry sled piece 3 respectively; The inlet mouth of intercooler 13 is communicated with the descending pipeline 40 of resurgent gases, the air outlet of intercooler 13 is communicated with the inlet mouth of vapour liquid separator 14 through regeneration pipeline 45, the air outlet of vapour liquid separator 14 is connected with circulating line 46, and circulating line 46 is connected with resurgent gases uphill line 50; Recirculation blower 15 is arranged on the circulating line 46, and electric heater 10 is arranged on the resurgent gases uphill line 50; The pneumatic outlet 302 of dry sled piece 3 is connected with resurgent gases uphill line 50 by tonifying Qi pipeline 48; No. one, No. two dehydration inlet mouths 111,121 (resurgent gases outlet) are connected with the descending pipeline 40 of resurgent gases through by-pass line 43,53 respectively; No. one, No. two dehydration air outlets 112,122 (resurgent gases import) are connected with resurgent gases uphill line 50 through by-pass line 44,54 respectively; Wet natural gas enters the absorption of dewatering in adsorption tower 11 or the adsorption tower 12 through No. four gas pipelines 24, dehydration intake ducting 41 or dehydration intake ductings 51, and the dried natural gas via dehydration outlet pipe 42 or the outlet pipe 52 that dewaters enter No. five gas pipelines 25, return gas compressor 2.
Dry natural gas enters electric heater 10 heating through tonifying Qi pipeline 48, enter adsorption tower 11 or adsorption tower 12 by by- pass line 44 or 54, sorbent molecule sieve in adsorption tower 11 or the adsorption tower 12 is regenerated, gas after the regeneration enters intercooler 13 coolings through the descending pipeline 40 of resurgent gases, after regeneration pipeline 45 enters vapour liquid separator 14 and isolates moisture, during by circulating line 46, after recirculation blower 15 pressurizations, enter resurgent gases uphill line 50 and recycle, water of condensation is through delivery pipe 49 dischargings.
Adsorption tower 11 is made up of tank body 114, end socket 115, double-edged fine-toothed comb 116, and double-edged fine-toothed comb 116 is provided with adsorption dehydrating agent 113, and adsorption dehydrating agent 113 adopts prior art.
The structure of intercooler 13 can be identical with the structure of outer water cooler 6.
Please refer to Fig. 5, outer water cooler 6 can be arranged above and below by four groups of shell and tube heat exchanger, connecting constitutes, and natural gas via is entered by the tube side import 601 on the cooler bulkhead 607, flows in tubulation 606, discharge by bottom tube side outlet 602, enter light hydrocarbon separator 7 Separation and Recovery lighter hydrocarbons; Refrigerant is entered by the shell side import 603 of bottom, with the Sweet natural gas counter current contact, the evaporation heat absorption is cooled Sweet natural gas, tube side between each shell and tube heat exchanger is communicated with by gas connection pipe 608, shell side is communicated with by refrigerant pipe connecting 609, the effect of gas-liquid separator 610 is that refrigerant is carried out gas-liquid separation, isolated liquid phase coolant is returned the bottom, the band liquid problem that can effectively avoid the refrigeration agent evaporation not exclusively to cause, the gas phase refrigerant is discharged by shell side outlet 604, return refrigerator 8, recycle.
Light hydrocarbon separator 7 isolated liquid phase lighter hydrocarbons remain in the bottom of separator, regularly through lighter hydrocarbons discharge outlet 703,17 dischargings of lighter hydrocarbons transport pipe, lighter hydrocarbons import 901 by the lighter hydrocarbons storage tank enters storage recovery in the lighter hydrocarbons storage tank 9, through lighter hydrocarbons outlet 902, lighter hydrocarbons output channel 18 uses for the lighter hydrocarbons user, the pressure of lighter hydrocarbons storage tank 9 is 1～1.6MPa, by 903 controls of gas phase emission mouth, the main component of gas phase is a methane, the low condensation point gas that discharges after the decompressions such as ethane is through gas phase emission mouth 903, gas phase recovery channel 19, gas pipeline 24 returns dry sled piece 3 and reclaims.
Claims (1)
1. the middle pressure shallow cooling purification system of an associated gas, by water separator, gas compressor, dry sled piece, water cooler, interchanger, refrigerator, outer water cooler, light hydrocarbon separator, the lighter hydrocarbons storage tank is formed, it is characterized in that: the gas feed of described water separator is connected with oil field association natural gas line through a gas pipeline, the pneumatic outlet of water separator is communicated with the first step import of gas compressor through No. two gas pipelines, the first step outlet of gas compressor is communicated with the second stage import of gas compressor through No. three gas pipelines, the second stage outlet of gas compressor is communicated with the gas feed of dry sled piece through No. four gas pipelines, the pneumatic outlet of dry sled piece is communicated with the third stage import of gas compressor through No. five gas pipelines, the third stage outlet of gas compressor is communicated with the gas feed of water cooler through No. six gas pipelines, the pneumatic outlet of water cooler is communicated with the shell side import of interchanger through No. seven gas pipelines, the shell side outlet of interchanger is communicated with the tube side import of outer water cooler through No. eight gas pipelines, the tube side outlet of outer water cooler is communicated with the cold gas import of light hydrocarbon separator through the vapour-liquid transport pipe, the cold gas outlet of light hydrocarbon separator is communicated with the tube side import of interchanger through the cold gas pipeline, the tube side outlet of interchanger is communicated with purified natural gas body transport pipe, the shell side import of outer water cooler is communicated with the coolant outlet of refrigerator through the descending pipeline of refrigerant, the shell side outlet of outer water cooler is communicated with the coolant inlet of refrigerator through the refrigerant uphill line, the lighter hydrocarbons discharge outlet of light hydrocarbon separator is communicated with the lighter hydrocarbons import of lighter hydrocarbons storage tank through the lighter hydrocarbons transport pipe, the lighter hydrocarbons outlet of lighter hydrocarbons storage tank is connected with the lighter hydrocarbons output channel, and the gas feed with dry sled piece is communicated with the gas phase emission mouth of lighter hydrocarbons storage tank through the gas phase recovery channel; Described dry sled piece is by No. one, No. two adsorption towers, intercooler, vapour liquid separator, recirculation blower and electric heater are formed, No. one, the top of No. two adsorption towers is respectively arranged with No. one, No. two dehydration inlet mouths, No. one, the bottom of No. two adsorption towers is respectively arranged with No. one, No. two dehydration air outlets, No. one, gas feed with dry sled piece is connected No. two dehydration inlet mouths through the dehydration intake ducting respectively, No. one, No. two the dehydration air outlet is connected through the pneumatic outlet of dehydration outlet pipe with dry sled piece respectively, the inlet mouth of intercooler is communicated with the descending pipeline of resurgent gases, the air outlet of intercooler is communicated with the inlet mouth of vapour liquid separator through the regeneration pipeline, the air outlet of vapour liquid separator is connected with circulating line, circulating line is connected with the resurgent gases uphill line, recirculation blower is arranged on the circulating line, electric heater is arranged on the resurgent gases uphill line, and the pneumatic outlet of dry sled piece is connected with the resurgent gases uphill line by the tonifying Qi pipeline; No. one, No. two the dehydration inlet mouth passes through by-pass line and the descending pipe connection of resurgent gases respectively, and No. one, No. two the dehydration air outlet is connected with the resurgent gases uphill line through by-pass line respectively.
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|---|---|---|---|
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071039A (en) * | 2010-12-16 | 2011-05-25 | 大连理工大学 | Method for increasing light dydrocarbon recovery rate of oil-field associated gas through shallow condensing recovery |
| CN103113946A (en) * | 2013-02-01 | 2013-05-22 | 王仕华 | Marsh gas purification system and marsh gas purification method |
| CN110538476A (en) * | 2019-09-11 | 2019-12-06 | 杭州宏盛中弘新能源有限公司 | Low-temperature flash light hydrocarbon recovery system and method for oilfield associated gas |
| CN111578620A (en) * | 2020-06-05 | 2020-08-25 | 杭州弘泽新能源有限公司 | Vehicle-mounted mobile system and process method for recovering hydrocarbon mixture and liquefied natural gas in oil field vent gas |
| CN113623905A (en) * | 2021-08-31 | 2021-11-09 | 广东肯富来泵业股份有限公司 | Cooling water flow control method in oilfield associated gas recovery process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071039A (en) * | 2010-12-16 | 2011-05-25 | 大连理工大学 | Method for increasing light dydrocarbon recovery rate of oil-field associated gas through shallow condensing recovery |
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| CN103113946A (en) * | 2013-02-01 | 2013-05-22 | 王仕华 | Marsh gas purification system and marsh gas purification method |
| CN103113946B (en) * | 2013-02-01 | 2014-12-24 | 王仕华 | Marsh gas purification system and marsh gas purification method |
| CN110538476A (en) * | 2019-09-11 | 2019-12-06 | 杭州宏盛中弘新能源有限公司 | Low-temperature flash light hydrocarbon recovery system and method for oilfield associated gas |
| CN111578620A (en) * | 2020-06-05 | 2020-08-25 | 杭州弘泽新能源有限公司 | Vehicle-mounted mobile system and process method for recovering hydrocarbon mixture and liquefied natural gas in oil field vent gas |
| CN111578620B (en) * | 2020-06-05 | 2024-04-12 | 无锡宏盛换热器制造股份有限公司 | System and process method for vehicle-mounted movable recovery of mixed hydrocarbon and liquefied natural gas in oilfield blow-down gas |
| CN113623905A (en) * | 2021-08-31 | 2021-11-09 | 广东肯富来泵业股份有限公司 | Cooling water flow control method in oilfield associated gas recovery process |
| CN113623905B (en) * | 2021-08-31 | 2023-02-28 | 广东肯富来泵业股份有限公司 | Cooling water flow control method in oilfield associated gas recovery process |
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|---|---|
| CN101857812B (en) | 2013-03-20 |
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