CN2669953Y - Demulsifying devices for oil and water emulsified materials - Google Patents
Demulsifying devices for oil and water emulsified materials Download PDFInfo
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- CN2669953Y CN2669953Y CNU032533241U CN03253324U CN2669953Y CN 2669953 Y CN2669953 Y CN 2669953Y CN U032533241 U CNU032533241 U CN U032533241U CN 03253324 U CN03253324 U CN 03253324U CN 2669953 Y CN2669953 Y CN 2669953Y
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Abstract
The utility model discloses a demulsifying device for oil and water emulsified materials, which is the ultrasonic function area of the pipeline structure connected with the oil and water pipeline. The utility model is characterized in that: both ends of the pipeline of the ultrasonic function area are separately provided with an ultrasonic probe; the two ultrasonic probes respectively generate the forward-flow ultrasonic whose direction is the same as the flow direction of the oil and water and the counter-flow ultrasonic whose direction is opposite to the flow direction of the oil and water; the ultrasonic probes and an ultrasonic generator are connected through ultrasonic power lines. Because the forward-flow ultrasonic and the counter-flow ultrasonic are combined to act on the oil and water, the time of the ultrasonic function of the oil and water emulsified materials is prolonged, and the oil and water emulsified material is ultimately and fully emulsified. The emulsified oil-water mixture is in the settlement separate or in the settlement separate after dewatered under the function of the electric field.
Description
Technical field
The utility model relates to a kind of device of oil-water emulsion breakdown of emulsion.
Background technology
Crude oil by injecting a large amount of water and surfactant or mechanism, forms the emulsification structure of oil and water in oil extraction process.Moisture sometimes from the crude oil of underground extraction up to more than 90%, be oil and water separating process key to make oil-water emulsion structure breakdown of emulsion.At first, oil field produced crude oil will pass through the deposition dehydrating operation, and the key of dehydrating effect quality is to make the oil-water emulsion breakdown of emulsion.Secondly, crude oil to the oil plant that carry in the oil field has the index request of salt content, need re-inject the electro-desalting process of water filling-desalinization of soil by flooding or leaching-electric field dehydration-desalination that fresh water carries out to three grade, makes oil-water emulsion structure breakdown of emulsion.
Crude oil is in process, the crude oil that transports from the oil field itself contains water, this water generally exists with emulsifying manner in crude oil, in addition, it is exactly to form new emulsification structure once more in one to three grade the electro-desalting process of water filling-desalinization of soil by flooding or leaching-electric field dehydration-desalination that crude oil enters refinery's first road manufacturing procedure, reach desalting effect preferably, destroying this oil-water emulsion structure of two types also is the key problem in technology of this technical process.In addition, at oil plant, from Bottom Plate of Crude Oil Storage settle down the jar end sump oil recovery crude oil process need breaking emulsion and dewatering, need breaking emulsion and dewatering the recovery crude oil process of the saline sewage that removes from crude oil electric desalting, also need breaking emulsion and dewatering in the electric treating process of gasoline, kerosene and diesel oil, also need breaking emulsion and dewatering in the lubricating oil denitrogenation electric treating process.
The method of present profit breaking emulsion and dewatering both domestic and external mainly contains heating, the electric field that adds high pressure, add demulsifier and their compound action, but along with the crude oil quality variation, these methods are handled the effect of the oil-water emulsion of complicated stable emulsifying, can't satisfy the needs of production method.Ultrasonic wave can be propagated in flowable profit as a kind of energy, and two kinds of different media of oil and salt solution are produced the relative displacement effect, therefore, the method for auxiliary other desalinations of ultrasonic wave and dehydration occurred, is used to meet the needs of production.
Effect makes the technology of profit breakdown of emulsion for ultrasonic wave, on November 4th, 1998, disclosed notification number was the CN2296230Y utility model patent, the ultrasonic probe installation direction is vertical with the active region axis direction, make that the direction of ultrasonic wave effect is vertical with the flow direction of profit, profit is short in the time of staying of ultrasonic wave active region, ultrasonic wave is because the focusing of hyperacoustic back wave of the intrados of pipe is easy to generate the local excessive sound intensity, make that ultrasonic wave active region ultrasonic intensity is inhomogeneous, cause the emulsification of profit on the contrary easily.The U.S. patent of invention U.S.P5 of application in 1999,885,424 ultrasonic wave active region structures.Ultrasonic probe is installed on the flat rectangular box.The rectangular area is the ultrasonic wave active region, and probe is installed in outer surface or following outer surface.This structure is by the outer surface of rectangular box, suitably increased the action of ultrasonic waves area, the action of ultrasonic waves time is prolonged to some extent, but it is vertical with the profit flow direction that shortcoming remains the ultrasonic wave action direction, ultrasonic wave is shorter action time, action effect is not obvious, does not have industrial application value.Up to the present, also be not applied to successful technology on the industrial continuous production processes.
Summary of the invention
The purpose of this utility model is the equipment at existing ultrasonic wave profit breakdown of emulsion, the device that the ultrasonic combined effect of a kind of following current and adverse current makes the oil-water emulsion breakdown of emulsion is proposed, solve that the ultrasonic wave effect focuses on easily and inhomogeneous, zone of action area is little or action direction vertical and short problem of time, strengthen the effect of ultrasonic wave effect profit breakdown of emulsion, realize the commercial Application of ultrasonic wave effect profit breakdown of emulsion.
The device of the utility model oil-water emulsion breakdown of emulsion, ultrasonic wave active region for the duct type structure that is connected with the profit pipeline, a ultrasonic probe is respectively installed at the two ends that it is characterized in that ultrasonic wave active region pipeline, produce and profit flow direction following current ultrasonic wave in the same way and reverse adverse current ultrasonic wave respectively, ultrasonic probe links to each other by the ultrasonic power line with supersonic generator.
A ultrasonic probe is installed at two ends, ultrasonic wave active region respectively, produces and profit flow direction following current ultrasonic wave in the same way and reverse adverse current ultrasonic wave respectively.By following current ultrasonic wave and the ultrasonic combined profit that acts on of adverse current, prolonged the time of oil-water emulsion ultrasonic wave effect, finally make the abundant breakdown of emulsion of oil-water emulsion.The spacing of two ultrasonic probes also is the length of ultrasonic wave active region, selects long more favourablely to the profit breakdown of emulsion, generally selects greater than 0.5m.The ultrasonic wave of ultrasonic wave active region is preferably propagated with the uniform sound intensity, and the hyperacoustic sound intensity of adverse current is not less than the hyperacoustic sound intensity of following current.The hyperacoustic sound intensity of adverse current is not more than 0.8W/cm
2, preferably be not more than 0.5W/cm
2
The ultrasonic wave active region is the duct type structure, and pipeline can be a straight tube, also can be reducer pipe, preferred reducer pipe, this reducer pipe both can be that the two ends diameter is big, and mid diameter is little, also can be that the two ends diameter is little, mid diameter is big, also can be that an end diameter is big, the little various forms that waits of an end diameter.The cross section of pipeline also can be a different shape, as circular, square etc.Duct type ultrasonic wave active region is connected with the profit pipeline, can weld or multiple connected mode such as flange connection.
Compared with prior art, device of the present utility model provides a kind of ultrasonic wave active region that can produce the even sound intensity, and this ultrasonic wave active region can prolong ultrasonic wave action time.The axis direction of ultrasonic wave active region is consistent with the flow direction of profit, and ultrasonic wave is propagated to the far-end of pipeline, does not produce stack and focusing, prolonged the action of ultrasonic waves time, produce the ultrasonic wave of the even sound intensity, destroy the oil-water emulsion structure, improved dehydrating effect.Show through commerical test, compare that by the method for this profit ultrasonic wave-electro-desalting, profit takes off the back saliferous can be reduced to 1-4mg/l by 5-10mg/l with simple electro-desalting method.Take off the back crude oil water containing and be reduced to 0.1-0.4% by original 0.4-0.8%.Handle high moisture sump oil or high water-content crude oil with device of the present utility model, the draining oil-containing can reduce about more than 50%.
The utility model can be used in refinery's Crude Oil Processing, be in the crude oil electric desalting dewatering technology, in the gasoline electric treating dewatering process, in the kerosene electric treating dewatering process, in the electrical diesel oil refining dewatering process, in the lubricating oil denitrogenation electric treating dewatering process, in the recovery dewatering process of electro-desalting saline sewage oil-containing, in the crude oil recovery dewatering process of Bottom Plate of Crude Oil Storage sump oil, the utility model also can be used for deposition dehydrating technology, the crude oil electric desalting and dewatering technology of wet crude in the crude oil exploitation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 utilizes crude oil ultrasonic dehydration of the present utility model-electrical desalting and dewatering device flow chart.
Fig. 3 utilizes the utility model high water-content crude oil or high moisture sump oil sump oil ultrasonic dehydration-deposition dehydrating device flow chart.
Fig. 4 utilizes the utility model distillate ultrasonic dehydration-electric treating dewater unit flow chart.
The specific embodiment
Embodiment 1:
Shown in Figure 1, supersonic generator 1 takes place and the mobile following current ultrasonic wave 3 in the same way of profit by ultrasonic probe 2, adverse current ultrasonic wave 5 with the profit flow inversion takes place in ultrasonic probe 4, arrow is represented the flow direction of profit among the figure, under adverse current and the ultrasonic combined effect of following current, by the oil-water emulsion of importing in the pipeline that passes through ultrasonic wave active region 67, the water-bearing structure breakdown of emulsion of emulsification in the profit, the oil water mixture behind the breakdown of emulsion go dehydration back sedimentation separation or sedimentation separation under the electric field action.
Among Fig. 1, supersonic generator 1 is supplied with ultrasonic probe power energy.
Among Fig. 1, the installation direction of ultrasonic probe 2,4 requires the ultrasonic wave direction 3,5 of generation consistent with the flow direction of profit 7, and the flow direction of profit 7 is consistent with the axis direction of ultrasonic wave active region 6 pipelines.
With the ultrasonic wave of following current of profit direction and adverse current, unite mutually respectively the oil-water emulsion effect.Because of the ultrasonic wave active region is the duct type structure, thereby on the direction of ultrasonic wave radiation, the reflecting surface of ultrasonic wave active region does not have curved-surface structure, has prevented to produce hyperacoustic focusing and stack, prevents to cause oil-water emulsion.Such ultrasonic wave active region can produce the ultrasonic wave of the even sound intensity of long duration of action in the pipeline that profit flows, reach desalting and dewatering effect preferably.
Hyperacoustic sound intensity can select generally to be not more than 0.8W/cm
2, preferably be not more than 0.5W/cm
2, the hyperacoustic sound intensity of adverse current is selected generally to be not less than the hyperacoustic sound intensity of following current, helps the profit breakdown of emulsion like this, otherwise may cause oil-water emulsion, is unfavorable for the desalting and dewatering of profit.
Generally speaking, frequency of ultrasonic is selected little to the influential effect of profit desalting and dewatering, and frequency is higher, and ultrasonic wave is decayed easily.Therefore the ultrasonic wave of general employing 0.1-50Khz is more suitable.According to the different conditions of production, in order to prolong the ultrasonic wave action time of the crude oil under the flow regime, plural ultrasonic wave active region serial or parallel connection can be set, be used for satisfying the production requirement of different moisture saliferous.
Embodiment 2, and the symphyogenetic implementation result of following current and adverse current and single following current, single adverse current implementation result are relatively
Technical scheme with the ultrasonic wave-electro-desalting of Fig. 2 crude oil is an example, closes adverse current or following current and can carry out folk prescription and test to the ultrasonic wave effect.Compare with the technical scheme of single adverse current or single following current, following current and adverse current synergy can make the oil-water emulsion breakdown of emulsion preferably, can reduce preferably crude oil take off the back saliferous, can reduce preferably take off the back oil-water emulsion moisture, and can reduce preferably take off the back sewage in oil-containing.
(1) frequency 20Khz, the comparison of following current-adverse current associating, single adverse current, single following current ultrasonic wave-electric desalting apparatus desalting effect.
Sound intensity following current-adverse current is united the single following current of single adverse current
0.5W/cm2 1.2mg/l 3.5mg/l 4.5mg/l
0.4W/cm2 1.5mg/l 4.0mg/l 5.0mg/l
0.3W/cm2 2.1mg/l 4.4mg/l 5.1mg/l
0.2W/cm2 2.8mg/l 4.7mg/l 5.6mg/l
0.1W/cm2 3.1mg/l 5.6mg/l 6.2mg/l
Do not apply ultrasonic wave and do the time spent, crude oil electric desalting takes off the about 8mg/l of back saliferous.
Test under the same ultrasonic wave sound intensity, implement following current and symphyogenetic method of the present utility model of adverse current and device thereof, compare with single adverse current or single following current, crude oil electric desalting takes off the back saliferous and reduces about 50%.It is obviously low than single following current or single adverse current that the ultrasonic wave of following current and the ultrasonic combined effect of adverse current-electro-desalting combined unit, crude oil take off the back saliferous.
(2) frequency 20Khz, the comparison of following current-adverse current associating, single adverse current, single following current ultrasonic wave-electric desalting apparatus dehydrating effect.
Sound intensity following current-adverse current is united the single following current of single adverse current
0.5W/cm2 0.18％ 0.32％ 0.45％
0.4W/cm2 0.19％ 0.41％ 0.48％
0.3W/cm2 0.22％ 0.43％ 0.51％
0.2W/cm2 0.25％ 0.46％ 0.58％
0.1W/cm2 0.30％ 0.59％ 0.66％
Do not apply ultrasonic wave and do the time spent, crude oil electric desalting takes off back moisture about 0.8%.
Test under the same ultrasonic wave sound intensity, implement following current and symphyogenetic method of the present utility model of adverse current and device thereof, compare with single adverse current or single following current, crude oil electric desalting takes off the about 40-60% of the moisture reduction in back.The single following current of moisture obvious ratio or single adverse current were low after the ultrasonic wave of following current and the ultrasonic combined effect of adverse current-electro-desalting combined unit, crude oil took off, and dehydrating effect is good.
(3) frequency 20Khz, following current-adverse current associating, single adverse current, single following current ultrasonic wave-electric desalting apparatus take off back sewage with oil situation relatively.
The enforcement of the device of the ultrasonic combined effect of following current-adverse current of the present utility model is compared with simple electro-desalting, can make the sewage with oil after crude oil takes off reduce about 50%.
The single adverse current ultrasonic wave-implementation result of electro-desalting combined unit is compared with simple electro-desalting, and the oil content of wastewater after crude oil takes off is suitable.
The single following current ultrasonic wave-implementation result of electro-desalting combined unit is compared with simple electro-desalting, and it is about 40% that the oil content of wastewater after crude oil takes off rises on the contrary, causes oil-water emulsion to a certain degree.
The method of the ultrasonic combined effect of following current-adverse current of the present utility model and device are implemented to compare with single adverse current, single following current ultrasonic wave-electric desalting apparatus, can significantly reduce and take off the back oil content of wastewater.
Embodiment 3 ultrasonic wave active regions are used for the optimum implementation of crude oil ultrasonic wave-electric desalting and dewatering.
As Fig. 2, the crude oil in refinery or oil field is by behind the ultrasonic wave active region device 8, oil-water emulsion structure breakdown of emulsion, then, entering electrical desalter 9 continues to carry out desalting and dewatering under the effect of high voltage electric field, by sedimentation separation, crude oil flows out from top, and water flows out from the bottom, reaches best desalting and dewatering effect.
(1) on certain refinery's electric desalting apparatus, uses the desalting and dewatering effect that the utility model method is carried out commerical test.
(a) do not adopt industrial production situation of the present utility model before the test
It is moisture that saliferous crude oil took off the back after test period crude oil took off
On June 10th, 2003 5mg/l 0.4%
On June 11st, 2003 6mg/l 0.4%
On June 13rd, 2003 10mg/l 0.7%
On June 20th, 2003 5mg/l 0.5%
On June 21st, 2003 7mg/l 0.4%
On July 22nd, 2003 5mg/l 0.5%
On June 23rd, 2003 7mg/l 0.4%
On July 1st, 2003 10mg/l 0.8%
(b) adopt commercial test results of the present utility model
It is moisture that saliferous crude oil took off the back after test period crude oil took off
On June 13rd, 2003 1.6mg/l 0.2%
On June 14th, 2003 2.6mg/l 0.3%
On June 15th, 2003 2.5mg/l 0.1%
On June 16th, 2003 2.7mg/l 0.2%
On July 2nd, 2003 2.8mg/l 0.2%
On July 3rd, 2003 3.2mg/l 0.3%
On July 4th, 2003 4.0mg/l 0.2%
On July 5th, 2003 1.8mg/l 0.1%
On July 15th, 2003 2.5mg/l 0.3%
On July 16th, 2003 2.7mg/l 0.2%
Relatively (a) group and (b) group data, as can be seen, method of the present utility model and device are applied in the electric desalting and dewatering, can reduce crude oil and take off back saliferous about 50%.Crude oil takes off the back and moisturely reduces about 50% approximately.
(2) on certain refinery's electric desalting apparatus, use the utility model device, obviously increased electro-desalting voltage, reduced the electro-desalting electric current, saved the electric power consumption of electro-desalting.
Under the situation that does not change other working condition, test the industrial performance test that carries out the utility model device in the one-level electro-desalting, one-level electro-desalting water filling 5% does not change the simple electro-desalting operation of secondary electro-desalting, and secondary electro-desalting water filling has only 3%.Usually, when emulsification of crude oil was serious, the one-level electro-desalting was lower than the voltage of secondary electro-desalting, and electric current is higher.At duration of test, the voltage of secondary electro-desalting is lower, and electric current is higher.
Show some beneficial effects during commerical tests by following data:
The electro-desalting of test period one-level electro-desalting secondary
June in 2003,9:00 voltage on the 13rd v 348 360 350 348 364 354
Electric current I 189 249 230 249 268 252
June in 2003,9:00 voltage on the 14th v 367 367 363 239 65 258
Electric current I 163 228 185 358 528 375
June in 2003,9:00 voltage on the 15th v 344 355 354 154 58 224
Electric current I 197 255 233 384 530 419
June in 2003,9:00 voltage on the 16th v 340 328 344 27 29 30
Electric current I 207 291 229 445 529 446
July in 2003,9:00 voltage on the 2nd v 301 322 307 285 280 285
Electric current I 283 317 296 328 387 327
July in 2003,9:00 voltage on the 3rd v 337 354 336 324 342 327
Electric current v 253 275 262 282 303 284
July in 2003,9:00 voltage on the 4th v 373 384 365 363 375 366
Electric current I 193 215 203 216 231 222
Apply one-level electro-desalting of the present utility model and the voltage and current indicated value that does not apply secondary electro-desalting of the present utility model during the comparative test more as can be seen, ultrasonic wave effect of the present utility model, to reducing the electro-desalting electric current, increase electro-desalting voltage and have effect.General, reduce the electro-desalting electric current and just can reduce the electro-desalting power consumption.
Embodiment 4, and the ultrasonic wave active region is used for the optimum implementation of ultrasonic dehydration-deposition dehydrating recovery technology of high water-content crude oil or high moisture sump oil.
Shown in Figure 3, high oil-polluted water of discharging behind the high moisture sump oil of the Bottom Plate of Crude Oil Storage sump oil in settling tank in 10, the crude oil electric desalting and oil field are from down-hole extraction high water-content crude oil, emulsion is moisture up to more than 5%, have in addition up to more than 90, this highly aqueous water emulsion, behind ultrasonic wave active region device 8, oil-water emulsion structure breakdown of emulsion, then, recirculation enters in the sump oil settling tank in 10 carries out deposition dehydrating under the gravity effect, after the jar end draining, reclaim crude oil and sump oil.
After below having listed employing device of the present utility model, the effect that produces in the recovery of back saline sewage oil-containing is taken off in electro-desalting.
Draining oil-containing situation when (1) sedimentation saline sewage oil-containing reclaims:
1 day 7% July in 2003
6 days 10% July in 2003
7 days 9% July in 2003
8 days 10% July in 2003
9 days 10% July in 2003
(2) be applied to the utility model method and device, the draining oil-containing test situation when the saline sewage oil-containing reclaims:
2 days 3.5% July in 2003
3 days 4% July in 2003
4 days 4% July in 2003
5 days 4% July in 2003
Relatively (1) organizes the data of organizing with (2), and as can be seen, method of the present utility model and device are applied in the pot type deposition dehydrating, can reduce the draining oil-containing more than 50%.
Embodiment 5, and the ultrasonic wave active region is used for the flow process of the ultrasonic dehydration-electric treating dewatering process of distillate
Embodiment.
Shown in Figure 4, in electrical distillate treating, use the embodiment of the flow process of method of the present utility model and device, can be applicable in gasoline electric treating breaking emulsion and dewatering technology, kerosene electric treating breaking emulsion and dewatering technology, electrical diesel oil refining breaking emulsion and dewatering technology and the electrorefining breaking emulsion and dewatering of lubricating oil denitrogenation.Shown in Fig. 4, aforementioned each distillate is by behind the ultrasonic wave active region device 8, and oil-water emulsion structure breakdown of emulsion then, enters and continue dehydration, sedimentation, draining in the electric treating jar 11 under the high voltage electric field effect.
Claims (1)
1, a kind of breaking device of oil-water emulsion, ultrasonic wave active region for the duct type structure that is connected with the profit pipeline, a ultrasonic probe is respectively installed at the two ends that it is characterized in that ultrasonic wave active region pipeline, produce and profit flow direction following current ultrasonic wave in the same way and reverse adverse current ultrasonic wave respectively, ultrasonic probe links to each other by the ultrasonic power line with supersonic generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032533241U CN2669953Y (en) | 2003-09-05 | 2003-09-05 | Demulsifying devices for oil and water emulsified materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032533241U CN2669953Y (en) | 2003-09-05 | 2003-09-05 | Demulsifying devices for oil and water emulsified materials |
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| Publication Number | Publication Date |
|---|---|
| CN2669953Y true CN2669953Y (en) | 2005-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU032533241U Expired - Fee Related CN2669953Y (en) | 2003-09-05 | 2003-09-05 | Demulsifying devices for oil and water emulsified materials |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100506941C (en) * | 2005-09-07 | 2009-07-01 | 南京工业大学 | Refinery or oil field sump oil dehydration process |
| CN102091439A (en) * | 2010-12-27 | 2011-06-15 | 重庆工商大学 | Emulsified oil water hammer harmonic wave demulsification principle and device |
| CN101653666B (en) * | 2009-09-27 | 2011-09-21 | 奇瑞汽车股份有限公司 | Heating demulsification type oil-water separating device |
| US11873454B2 (en) | 2017-05-22 | 2024-01-16 | Saudi Arabian Oil Company | Crude hydrocarbon fluids demulsification system |
-
2003
- 2003-09-05 CN CNU032533241U patent/CN2669953Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100506941C (en) * | 2005-09-07 | 2009-07-01 | 南京工业大学 | Refinery or oil field sump oil dehydration process |
| CN101653666B (en) * | 2009-09-27 | 2011-09-21 | 奇瑞汽车股份有限公司 | Heating demulsification type oil-water separating device |
| CN102091439A (en) * | 2010-12-27 | 2011-06-15 | 重庆工商大学 | Emulsified oil water hammer harmonic wave demulsification principle and device |
| CN102091439B (en) * | 2010-12-27 | 2013-03-20 | 重庆工商大学 | Emulsified oil water hammer harmonic wave demulsification device |
| US11873454B2 (en) | 2017-05-22 | 2024-01-16 | Saudi Arabian Oil Company | Crude hydrocarbon fluids demulsification system |
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