CN203256242U - Device for removing water and heavy hydrocarbon from oilfield associated gas - Google Patents
Device for removing water and heavy hydrocarbon from oilfield associated gas Download PDFInfo
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- CN203256242U CN203256242U CN 201320195710 CN201320195710U CN203256242U CN 203256242 U CN203256242 U CN 203256242U CN 201320195710 CN201320195710 CN 201320195710 CN 201320195710 U CN201320195710 U CN 201320195710U CN 203256242 U CN203256242 U CN 203256242U
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- liquid separator
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Abstract
The utility model relates to a device for removing water and heavy hydrocarbon from oilfield associated gas, and belongs to the field of natural gas purification. The device mainly comprises an adsorber, a heat exchanger, a cooler, a gas-liquid separator, a supercharger and corresponding pipelines and program control valves, wherein the heat exchanger is connected with the top and bottom of the adsorber respectively through the corresponding pipeline and program control valve; the inlet end of the cooler is connected with the top of the adsorber through the corresponding pipeline and program control valve, and the other end of the cooler is connected with the inlet end of the gas-liquid separator; the top outlet end of the gas-liquid separator is communicated with the inlet of the supercharger, and the outlet of the supercharger is connected with the top end of the adsorber through the program control valve. The device has the advantages that the feed gas loss is avoided and the raw material recovery rate is high; the water removal efficiency is high and a regeneration effect is good; the energy consumption is low and continuous and stable effects are achieved; the investment is low, the operation is simple, the automatic degree is high, and an existing water removal device can be replaced to use.
Description
Technical field
The utility model belongs to the natural gas conditioning field, and particularly a kind of associated gas takes off the technical field of hydrocarbon.
Background technology
The Sweet natural gas that well head flows out is nearly all the gas phase saturation water, even can carry a certain amount of liquid water.In Sweet natural gas, the existence of moisture tends to cause serious consequence: contain CO
2And H
2The Sweet natural gas of S forms acid and corrosion pipeline and equipment in the situation that there is water to exist; Form gas hydrate under certain condition and stop up valve, pipeline and equipment; Reduce pipeline transmission capacity, cause unnecessary power consumption.Moisture is very disadvantageous thing in the existence of Sweet natural gas, therefore, needs the requirement of dehydration more strict.
The method of gas dehydration generally comprises low temperature process, solvent absorption, solid absorption method, chemical reaction method and membrane separation process etc.The low temperature process dehydration utilizes high-pressure natural gas throttling expansion cooling or utilizes the gas wave machine expansion lower the temperature and realize, this technique is suitable for high-pressure natural gas; And for low pressure natural gas, must supercharging if will use, thus the economy of process affected.Solvent absorption and solid absorption method are used more extensive at present in gas industry.The solvent absorption dehydration is one of the most general method of using in present gas industry.It utilizes principle of absorption, adopts a kind of hydrophilic solvent fully to contact with Sweet natural gas, thereby makes water be delivered to the purpose that reaches dehydration in solvent.When liquid contacts with the solid surface of porous, due to the interaction between fluid molecule and solid surface molecule, fluid molecule can be attracted on solid surface, causes fluid molecule content on solid surface to increase, and this phenomenon is called the adsorption phenomena of solid surface.The solid absorption method is exactly to utilize the solid, porous particles material that optionally the fluid-absorbent Semi-polarity is strong to be attached on its surfaces externally and internally, thus the method that fluid mixture is separated.Solid material with certain adsorptive power is called sorbent material, and the material that is adsorbed is called adsorbate.Absorption method sorbent material commonly used has molecular sieve, silica gel and activated alumina at present.
Take off in the hydrocarbon device at existing associated gas, quote and after one unstripped gas heats, dehydration tower is carried out thermal regeneration, then carrying out cooling regeneration, a small amount of resurgent gases is owing to containing saturation moisture, and narrow-minded, the pressure of regenerating is low all takes the direct emptying of high point, has caused the waste of raw material; On the other hand owing to taking unstripped gas that dehydration tower is regenerated, and contain saturation moisture in unstripped gas, can cause the dehydration tower product to become a mouthful end to contain part moisture in the process of regeneration, can cause dehydrated air in dehydration next time in also with micro-moisture, along with device extends working time, moisture content in finished product can increase the frequent replacing that causes sorbent material gradually, has increased Financial cost.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, provides a kind of associated gas to take off the device of heavy hydrocarbon.
The purpose of this utility model is achieved through the following technical solutions:
A kind of associated gas takes off the device of heavy hydrocarbon, mainly be made of adsorption tower, interchanger, water cooler, gas-liquid separator and supercharger and corresponding pipeline and sequencing valve, described interchanger is connected with the bottom with the top of adsorption tower with sequencing valve by pipeline respectively; The entrance end of water cooler is connected with the top of adsorption tower with sequencing valve by pipeline, and the other end is connected with the entrance end of gas-liquid separator; The top exit end of gas-liquid separator is communicated with the import of supercharger, and the outlet of supercharger is connected with the top of adsorption tower by sequencing valve.
Further scheme is, have three adsorption towers of realizing in turn absorption, thermal regeneration, cooling refresh function at least, at one time in, when an adsorption tower is in the process of planar water and heavy hydrocarbon, another tower is in thermal regeneration, also has a tower to be in cooling regeneration; Adsorption tower after cooling regeneration namely begins absorption, and the tower of absorption namely carries out thermal regeneration, and the adsorption tower of previous thermal regeneration namely begins to cool down regeneration; So consisting of the recycle system uses continuously.
Further scheme is; Regeneration gas comes from through dehydration and takes off gas after heavy hydrocarbon; First carry out cooling regeneration to one in the adsorption tower that is in non-adsorbed state; Then through after the interchanger heating, another adsorption tower that is in non-adsorbed state being carried out thermal regeneration; Resurgent gases after thermal regeneration is cooled to normal temperature through supercooler; The water that this moment is a large amount of and C5+ hydrocarbon exist with the form of liquid state; And discharge unified the processing from the bottom of gas-liquid separator; Gas phase part enters into adsorption tower again when out being pressurized to over raw material oil field gas pressure by supercharger from the gas-liquid separator top top recycles.
In sum, the beneficial effects of the utility model are.
1) the utility model loses without unstripped gas, and the rate of recovery is high.
2) gas after the utility model employing dehydration is as resurgent gases, and dewatering efficiency is high, and regeneration effect is better.
3) the utlity model has regeneration narrow-minded, energy consumption is low, the characteristics of continous-stable.
4) the utlity model has facility investment few, simple to operate, the characteristics that level of automation is high.
Description of drawings
Fig. 1 is operation chart of the present utility model.
Fig. 2 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Embodiment:
As shown in Figure 2, the utility model mainly is made of adsorption tower T101A～C, interchanger E101, water cooler E102, gas-liquid separator V101 and supercharger C101 and corresponding pipeline and sequencing valve K1～6, and described interchanger E101 is connected with the bottom with the top of adsorption tower T101A～C with sequencing valve K4a～c with sequencing valve K5a～c by pipeline respectively; The entrance end of water cooler E102 is connected with the top of adsorption tower T101A～C with sequencing valve K6a～c by pipeline, and the other end is connected with the entrance end of gas-liquid separator V101; The top exit end of gas-liquid separator v101 is communicated with the import of supercharger, and the outlet of supercharger is connected with the top of adsorption tower T101A～C by sequencing valve K1a～c.
Concrete operations are; The angry top that enters into adsorption tower T101A through sequencing valve K1a of raw material oil field part; Be filled with the Special adsorbent that takes off heavy hydrocarbon in adsorption tower; Process removes the Sweet natural gas of moisture and heavy hydrocarbon by fed downstream operation after sequencing valve K2a; Get a small gangs of as resurgent gases process sequencing valve K3a from adsorption tower T101A bottom gas product out; K3b enters from the bottom of adsorption tower T101B; Adsorption tower T101B is carried out cooling regeneration; Gas after regeneration enters to interchanger E101 heating through sequencing valve K5b; Resurgent gases after heating enters adsorption tower T101C bottom by sequencing valve K4c it is carried out thermal regeneration; Gas after thermal regeneration is after sequencing valve K6c enters to water cooler E102 and is cooled to normal temperature; Most of water in resurgent gases and heavy hydrocarbon (being mainly the C5+ hydrocarbon) become liquid state; Enter to gas-liquid separator V101 and carry out gas-liquid separation together with cooled resurgent gases; Water and heavy hydrocarbon are discharged from the bottom of gas-liquid separator V101; The regeneration cold gas is discharged by retrieval system after supercharger C101 pressurization from the top.
After said process was completed, adsorption tower T101B carried out adsorption process, and adsorption tower T101C carries out cooling regenerative process, and adsorption tower T101A carries out the thermal regeneration process, so carried out the continuous and steady operation of this device.
Claims (2)
1. an associated gas takes off the device of heavy hydrocarbon, mainly consisted of by adsorption tower T101A～C, interchanger E101, water cooler E102, gas-liquid separator V101 and supercharger C101 and corresponding pipeline and sequencing valve K1～6, it is characterized in that described interchanger E101 is connected with the bottom with the top of adsorption tower T101A～C with sequencing valve K4a～c with sequencing valve K5a～c by pipeline respectively; The entrance end of water cooler E102 is connected with the top of adsorption tower T101A～C with sequencing valve K6a～c by pipeline, and the other end is connected with the entrance end of gas-liquid separator V101; The top exit end of gas-liquid separator v101 is communicated with the import of supercharger, and the outlet of supercharger is connected with the top of adsorption tower T101A～C by sequencing valve K1a～c.
2. a kind of associated gas according to claim 1 takes off the device of heavy hydrocarbon, it is characterized in that, has three adsorption towers of realizing in turn absorption, thermal regeneration, cooling refresh function at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320195710 CN203256242U (en) | 2013-04-18 | 2013-04-18 | Device for removing water and heavy hydrocarbon from oilfield associated gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320195710 CN203256242U (en) | 2013-04-18 | 2013-04-18 | Device for removing water and heavy hydrocarbon from oilfield associated gas |
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| Publication Number | Publication Date |
|---|---|
| CN203256242U true CN203256242U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320195710 Expired - Fee Related CN203256242U (en) | 2013-04-18 | 2013-04-18 | Device for removing water and heavy hydrocarbon from oilfield associated gas |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611377A (en) * | 2013-11-13 | 2014-03-05 | 常州大学 | Gas purification pretreatment method and device |
| CN104147906A (en) * | 2014-08-28 | 2014-11-19 | 四川金星压缩机制造有限公司 | Molecular sieve dehydration system and molecular sieve dehydration process |
| CN104275071A (en) * | 2014-09-05 | 2015-01-14 | 杭州东安科技有限公司 | Outlet supercharging temperature swing adsorption process and device |
| CN104275068A (en) * | 2014-09-05 | 2015-01-14 | 杭州东安科技有限公司 | Supercharging temperature swing adsorption process and device |
| CN104726127A (en) * | 2015-03-31 | 2015-06-24 | 西安长庆科技工程有限责任公司 | Refined heavy-hydrocarbon removal system for recovering LNG/LPG/NGL from petroleum associated gas |
-
2013
- 2013-04-18 CN CN 201320195710 patent/CN203256242U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611377A (en) * | 2013-11-13 | 2014-03-05 | 常州大学 | Gas purification pretreatment method and device |
| CN104147906A (en) * | 2014-08-28 | 2014-11-19 | 四川金星压缩机制造有限公司 | Molecular sieve dehydration system and molecular sieve dehydration process |
| CN104275071A (en) * | 2014-09-05 | 2015-01-14 | 杭州东安科技有限公司 | Outlet supercharging temperature swing adsorption process and device |
| CN104275068A (en) * | 2014-09-05 | 2015-01-14 | 杭州东安科技有限公司 | Supercharging temperature swing adsorption process and device |
| CN104726127A (en) * | 2015-03-31 | 2015-06-24 | 西安长庆科技工程有限责任公司 | Refined heavy-hydrocarbon removal system for recovering LNG/LPG/NGL from petroleum associated gas |
| CN104726127B (en) * | 2015-03-31 | 2016-08-24 | 西安长庆科技工程有限责任公司 | A kind of loss of essence heavy hydrocarbon system reclaiming LNG/LPG/NGL for oil field gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20210418 |