CN102451579A - Multi-channel feeding ultrasonic demulsification-electric desalting combined method and device thereof - Google Patents
Multi-channel feeding ultrasonic demulsification-electric desalting combined method and device thereof Download PDFInfo
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- CN102451579A CN102451579A CN2010105170049A CN201010517004A CN102451579A CN 102451579 A CN102451579 A CN 102451579A CN 2010105170049 A CN2010105170049 A CN 2010105170049A CN 201010517004 A CN201010517004 A CN 201010517004A CN 102451579 A CN102451579 A CN 102451579A
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Abstract
The invention relates to a multi-channel feeding ultrasonic-electric desalting combined method and a device thereof. In the invention, directed at the multi-channel feeding circumstance of an electrical desalter, pipelines through which crude oil enters the electrical desalter are provided with ultrasonic action areas in parallel connection so as to form a multi-channel feeding parallel ultrasonic reaction area, which is composed of at least one single ultrasonic action area in parallel connection. When flowing through the parallel ultrasonic reaction area, crude oil is distributed into single ultrasonic action areas uniformly. After being demulsified under the action of ultrasonic waves, the crude oil enters the electrical desalter for gravity sedimentation and/or electric field separation, thus reaching the purpose of demulsification and separation of an oil-water emulsion. Before desalting, crude oil and water are mixed by a static mixer and then mixed by a mixing valve, and then, the mixture is demulsified by the parallel ultrasonic reaction area. The method and device of the invention can be used in an electric desalting technology of refinery crude oil, as well as sedimentation dehydration or electric dehydration technologies of oil field crude oil.
Description
Technical field
The present invention relates to a kind of method and device of crude oil demulsification desalting and dewatering, particularly relate to the method and the device of a kind of ultrasonic wave-electro-desalting associating.
Background technology
Crude oil demulsification is the key problem in technology of oil field dehydration and refinery desalting.For many years; The crude oil demulsification Study on Technology is only limited in the research of chemical demulsifier mostly; Different types of crude oil there is bigger limitation; And the application of demulsifier has many production and environmental issue: cause production cost to rise, cause the COD value of electro-desalting draining and draining oil-containing value to rise, directly influence the qualified discharge that normally carries out and handle back sewage of oil plant water treatment.In recent years,, the desalting dewatering device of ultrasonic dehydration and electric field desalination associating occurred, be used for satisfying the requirement of producing along with the application of ultrasonic technology in crude oil demulsification.
On March 12nd, 2003, disclosed notification number was the CN2539559Y utility model patent, the crude oil ultrasonic wave--electric field associating desalter needs the hyperacoustic sound intensity of control generally to be not more than 0.5w/cm in the production process
2,, the series connection of plural ultrasonic wave active region can be set for the different production condition; Satisfy the different production requirement, still, for the bigger oil plant of crude charging capacity; Only, but can not satisfy the hyperacoustic sound intensity of control and generally be not more than 0.5w/cm through the series connection of ultrasonic wave active region
2Specification requirement.On March 9th, 2005 disclosed publication number CN 1589947A application for a patent for invention; The ultrasonic combined effect of following current and adverse current makes the method and the device of oil-water emulsion breakdown of emulsion; In embodiment 1, mention and " according to the different production situation; 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." this invention is the improvement to the utility model of aforementioned crude oil ultrasonic wave-electric field associating desalter, lacks embodiment for the enforcement of the ultrasonic dehydration technology of the electrical desalter of the high throughput of multiple feed.
Common electrical oil dewatering salt cellar charging is a multiple feed; Be at least the two-way charging of one-to-two, many persons are by one-to-two, two minutes four again; Octuple charging of four minutes eight etc. again; The purpose of its multiple feed setting is that charging is balanced when keeping crude oil to advance horizontal electrical desalter, prevents short circuit charging or channel, guarantees the electrical desalter smooth operation.Invent the method and the device of the supporting ultrasonic wave-electro-desalting of a kind of high throughput electrical desalter that adapts to multiple feed, in order to satisfy the production needs of common electric desalting and dewatering.
Summary of the invention
The objective of the invention is operating mode, propose the method for the parallel ultrasonic wave of a kind of multiple feed-electro-desalting associating to the existing electric desalting apparatus of most oil plants.In the bigger crude electric desalter of single jar of treating capacity of electro-desalting, be generally multiple feed, the invention solves in the ultrasonic wave active region hyperacoustic skewness or ultrasonic acoustic is powerful causes the not good problem of emulsification or demulsification in the regulation parameter.Provide the pressure vessel and equipment cost of a kind of ultrasonic wave active region lower, install take up room little; The method that the ultrasonic dehydration of be convenient to construction and installation, also being convenient to production operation control and electro-desalting are united; Strengthen ultrasonic dehydration and symphyogenetic dehydration of electro-desalting and desalting effect, realize the symphyogenetic commercial Application of electrical desalter of the high throughput of ultrasonic dehydration and multiple branch circuit charging.
The method of a kind of multiple feed ultrasonic wave of the present invention-electro-desalting associating; Comprise electrical desalter, ultrasonic wave active region; The mode that crude oil advances electrical desalter is a multiple feed, it is characterized in that: advance at crude oil on the pipeline of electrical desalter to be parallel with the ultrasonic wave active region, form the parallel ultrasonic wave of multiple feed active region; This parallel ultrasonic wave active region is at least by 1 single ultrasonic wave active region parallel connection; Crude stream is crossed parallel ultrasonic wave active region and uniform distribution in single ultrasonic wave active region, and behind the breakdown of emulsion, crude oil gets into electrical desalter and carries out gravitational settling and/or electric field separates under action of ultrasonic waves.
The present invention both can be on trunk line parallelly connected ultrasonic wave active region; Also can each be parallel with the ultrasonic wave active region respectively on along separate routes in that crude oil advances electrical desalter; Form the parallel ultrasonic wave of multiple feed active region, this parallel ultrasonic wave active region is at least by 1 single ultrasonic wave active region parallel connection.
Multiple feed ultrasonic wave of the present invention is formed in parallel by the single ultrasonic wave active region more than 1; The ultrasonic wave that produces acts on crude oil and the mixing and emulsifying thing of water before the electrical desalter into; Play the demulsification of oil-water emulsion; Prolonged the time of oil-water emulsion ultrasonic wave effect, made the abundant breakdown of emulsion of oil-water emulsion.
The ultrasonic wave that is used for the single ultrasonic wave active region of parallel connection is preferably propagated with the uniform sound intensity, and hyperacoustic intensity is at 0.1-0.5w/cm
2Scope, preferred ultrasonic intensity is at 0.2-0.3w/cm
2Scope.
One or more ultrasonic transducers are installed at the two ends that are used for each single ultrasonic wave active region of parallel connection respectively; Produce the ultrasonic wave mode of action of following current and adverse current; On the direction of ultrasonic wave radiation, the reflecting surface of ultrasonic wave active region can not be set to curved-surface structure (the for example end socket class formation pattern of curved surface), to prevent to produce hyperacoustic focusing and stack; Cause oil-water emulsion, embodiment is that the ultrasonic wave active region is set to the duct type structure preferably.
Each the ultrasonic wave active region version that constitutes the parallel ultrasonic wave of multiple feed active region is consistent.
The volume of each ultrasonic wave active region of the parallel ultrasonic wave of formation multiple feed active region is basic identical.
Each the interconnective mode in ultrasonic wave active region that constitutes the parallel ultrasonic wave of multiple feed active region is consistent.
The parallel ultrasonic wave of multiple feed of the present invention active region is made up of with the duct type connected mode a plurality of ultrasonic waves active region more than 1, can link to each other by the duct type welding manner between the single ultrasonic wave active region, forms the parallel ultrasonic wave effect of multiple feed.
The parallel ultrasonic wave of multiple feed of the present invention active region is made up of with the duct type connected mode the single ultrasonic wave active region more than 1, can link to each other by the duct type flange connection between the single ultrasonic wave active region, forms the parallel ultrasonic wave effect of multiple feed.
The parallel ultrasonic wave of multiple feed of the present invention inserts on the pipeline before the electrical desalter through the pipeline by-pass, opens the by-pass valve, closes that the mixture of crude oil and water passes through parallel ultrasonic wave active region behind the main line valve.
The parallel ultrasonic wave of multiple feed of the present invention active region can not inserted through by-pass yet and is directly inserted pipeline, and the mixture of crude oil and water can directly pass through the parallel ultrasonic wave of single channel charging active region.
The quantity that constitutes the parallel hyperacoustic ultrasonic wave of multiple feed active region is confirmed by the crude charging capacity of electrical desalter; Can constitute by 1 ultrasonic wave active region; Also can constitute, also can constitute or the like by 4 identical ultrasonic wave active regions by 2 identical ultrasonic wave active regions.Control provides a kind of hyperacoustic intensity of multi-channel parallel formula that can produce the even sound intensity at 0.1-0.5w/cm
2In the scope, preferred ultrasonic intensity is at 0.2-0.3w/cm
2In the scope.
General; The electrical desalter design charging of 1,500,000 tons of/year following treating capacities is the form of one-to-two; Can be arranged on the preceding main line of branch line 1 single ultrasonic wave active region is installed; The situation that install single ultrasonic wave active region can be regarded a kind of special circumstances of parallel connection as, constitutes the parallel ultrasonic wave of multiple feed active region by 1 single ultrasonic wave active region.
General; The electrical desalter of treating capacity design charging is the form of one-to-two or two minutes four between ten thousand tons/year of the 150-500; Can be arranged on 2 single ultrasonic wave active regions are installed on 2 bye-passes after the main line branch, constitute the parallel ultrasonic wave of multiple feed active region.
General; The electrical desalter of treating capacity design charging is two minutes four or four minutes eight a form between ten thousand tons/year of the crude charging capacity 500-1500; Can be arranged on 4-8 single ultrasonic wave active region is installed on 4 or 8 bye-passes after the main line branch, constitute the parallel ultrasonic wave of multiple feed active region.
For guaranteeing that hyperacoustic intensity is at 0.1-0.5w/cm
2Scope, preferred ultrasonic intensity is at 0.2-0.3w/cm
2Scope, the power output of scalable processor for ultrasonic wave reaches the uniformity and the best breakdown of emulsion desalting effect of this specification requirement.
The method of multiple feed ultrasonic wave-electro-desalting associating and device can be installed in the electro-desalting system more than 1 cover at least.
The method of multiple feed ultrasonic wave-electro-desalting associating and device can be selected to install on the branch road by-pass of the mixed pipeline of profit before the one-level electro-desalting only, also can be chosen in the one-level electro-desalting before, installation simultaneously on the branch road by-pass of the mixed pipeline of profit before the secondary electro-desalting.Multistage electro-desalting also can be chosen on the branch road by-pass of the mixed pipeline of profit before the electro-desalting pipes at different levels and install simultaneously.
Realize the breaking device of said method; The parallel ultrasonic wave of multiple feed active region is the duct type structure and is connected with the profit pipeline; A ultrasonic transducer is respectively installed at the two ends of each 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 transducer links to each other through the ultrasonic power line with supersonic generator.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, the method and the device of multiple feed ultrasonic wave of the present invention-electro-desalting associating provide a kind of ultrasonic wave active region that can produce the even sound intensity, and hyperacoustic intensity is at 0.1-0.5w/cm
2Scope, preferred ultrasonic intensity is at 0.2-0.3w/cm
2Scope has guaranteed the effect of desalination and dehydration.Show through commerical test, compare with simple electro-desalting method and apparatus, through the method and the device of this multiple feed ultrasonic wave-electro-desalting associating, obtain good desalting and dewatering effect: crude oil takes off the back saliferous can be reduced to 1-3mg/L by 3-5mg/L; Can replace demulsifier fully, eliminate the direct influence of the use of demulsifier natural environment; The total draining oil-containing of electro-desalting total draining COD value and electro-desalting all reduces more than 50%.
The present invention can be used for also can be used in the electric dehydration technology of crude oil in the crude oil electric desalting technology in refinery's Crude Oil Processing.
The present invention can be provided with different parallelly connected schemes according to the difference of electro-desalting crude charging capacity.
The present invention can select one or more levels ultrasonic dehydration scheme according to the demands of different of variety classes oil property and desalting and dewatering index.
The method and the device of multiple feed ultrasonic wave of the present invention-electro-desalting associating are not limit progression, select one-level at least.
The number that the method for multiple feed ultrasonic wave of the present invention-electro-desalting associating and device are not limit parallelly connected ultrasonic wave active region is made up of a ultrasonic wave active region at least.
Description of drawings
Fig. 1 is that the control process flow diagram of implementing in the one-level electro-desalting is united in multiple feed ultrasonic wave-electro-desalting of the present invention.
Fig. 2 is the control process flow diagram that the direct access of implementing in the one-level electro-desalting is united in the parallel ultrasonic wave-electro-desalting of multiple feed of the present invention.
Fig. 3 is the method for multiple feed ultrasonic wave of the present invention-electro-desalting associating and the control process flow diagram that device is implemented in the two-stage electro-desalting.
Fig. 4 is the method for multiple feed ultrasonic wave of the present invention-electro-desalting associating and the special case situation sketch map of the parallel connection that device has only a single ultrasonic wave active region.
Fig. 5 is the method for multiple feed ultrasonic wave of the present invention-electro-desalting associating and installs the enforcement sketch map in 4 single ultrasonic wave effects of 4 arms parallel connections of two minutes four feed pipes.
Fig. 6 multiple feed ultrasonic wave of the present invention-method of electro-desalting associating and the ultrasonic wave active region of device are the sketch map of reducer pipe.
Among the figure: 1, take off preceding crude oil, 2, the one-level water filling, 3, the one-level static mixer, 4, the one-level mixing valve; 5, single ultrasonic wave active region, 6, ultrasonic transducer, 7, the parallel ultrasonic wave of multiple feed active region; 8, one-level draining valve 9, ultrasonic wave switch board, 10, the DCS of central control room control system, 11, the one-level electrical desalter; 12, one takes off back crude oil, and 13, the secondary water filling, 14, the secondary static mixer; 15, secondary mixing valve, 16, the secondary draining valve, 17, secondary electrical desalter 18, two takes off back crude oil.
The specific embodiment
The embodiment of multiple feed ultrasonic wave-electro-desalting associating
Shown in Figure 1, crude oil 1 mixes through one-level static mixer 3 with one-level water filling 2 before taking off, and mixes through one-level mixing valve 4 again, and then, the mixture of crude oil and water divides two the tunnel to get into one-level electrical desalter 11 through the pipeline of one-to-two; The parallel ultrasonic wave of two tunnel chargings active region 7 by-passes through two branch roads get into parallel ultrasonic wave active region 7; Parallel ultrasonic wave active region 7 is made up of a plurality of identical single ultrasonic wave active regions 5; 5 two ends, single ultrasonic wave active region are separately installed with ultrasonic transducer 6; Ultrasonic transducer 6 is connected with ultrasonic wave controller in the ultrasonic wave switch board 9, the DCS control system 10 control ultrasonic waves outputs of the ultrasonic wave controller in the ultrasonic wave switch board 9 through central control room with show; After opening the by-pass valve, close the main line valve, crude oil mixes the emulsion of formation through behind 7 breakdowns of emulsion of the parallel ultrasonic wave of multiple feed active region with water high strength; End by one-level electrical desalter 11 gets into the one-level electrical desalter, and crude oil and separated form water under the effect of gravity, high voltage electric field realize one-level dehydration-desalination; Saline sewage after the one-level dehydration-desalination is discharged at the bottom of jar through one-level draining control valve 8; One-level is taken off back crude oil 12 after the tank deck discharge, after secondary water filling 13 mixes through secondary static mixer 14, mixes through secondary mixing valve 15 again; Get into secondary electrical desalter 17; Water-oil separating under the effect of gravity, high voltage electric field, the secondary saline sewage is discharged at the bottom of jar through secondary draining control valve 16, and secondary takes off back crude oil 18 is derived by tank deck.
Electrical desalter crude oil feeding form is the multiple feed of the one-to-two of electrical desalter among Fig. 1.
The parallel ultrasonic wave of multiple feed active region 7 is the duct type structure among Fig. 1; The parallel ultrasonic wave of multiple feed active region 7 is inserted by the single ultrasonic wave active region 5 of the same structure size more than 1 by-pass through the feeding pipe branch line and is constituted; The access of single ultrasonic wave active region can be welded, and also can be connected by flange.
Among Fig. 1; Ultrasonic wave controller in the ultrasonic wave switch board 8 is by the AC power energize; Ultrasonic wave controller is supplied with transducer 6 energy, converts electrical energy into hyperacoustic mechanical vibrational energy by transducer, through single ultrasonic wave active region 5 ultrasonic energy is passed to crude oil and water emulsion.
Hyperacoustic sound intensity can select generally to be not more than 0.8W/cm
2, preferably be not more than 0.5W/cm
2
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.
General, the electrical desalter design charging of 1,500,000 tons of/year following treating capacities is the form of one-to-two, can be arranged on the preceding main line of branch line 1 single ultrasonic wave active region is installed, and constitutes the parallel ultrasonic wave of multiple feed active region.
General; Between ten thousand tons/year of the 150-500 treating capacity electrical desalter design charging be the form of one-to-two or two minutes four; Can be arranged on 2 single ultrasonic wave active regions are installed on 2 bye-passes after the main line branch, constitute the parallel ultrasonic wave of multiple feed active region.
General; Between ten thousand tons/year of the 500-1500 treating capacity electrical desalter design charging be two minutes four or four minutes eight form; Can be arranged on 4 single ultrasonic wave active regions are installed on 4 bye-passes after the main line branch, constitute the parallel ultrasonic wave of multiple feed active region.
The difference of the density of based on crude, emulsification degree can be provided with the multi-channel parallel formula ultrasonic wave active region more than 1 respectively before one, two, three electrical desalter, be used for satisfying different production requirements.
The difference of the density of based on crude, emulsification degree can be provided with a plurality of multi-channel parallel formula ultrasonic wave active regions respectively before multistage electrical desalter, be used for satisfying different production requirements.
The pot type structure has been avoided being designed in the parallel ultrasonic wave of multiple feed of the present invention active region; Ultrasonic wave active region equipment manufacturing cost is lower, both has been convenient to construction and installation, also is convenient to control; Realize the ideal application effect of ultrasonic dehydration-electro-desalting associating, can reach desalting and dewatering effect preferably.
The method of certain 5,000,000 tons of/year crude charging capacity multiple feed ultrasonic wave-electro-desalting associating and device are in the enforcement of one-level electro-desalting
The method of multiple feed ultrasonic wave-electro-desalting associating and device electro-desalting effect before and after the enforcement of one-level electro-desalting compare.
The two-stage electro-desalting of the electro-desalting one-to-two charging of the oil plant of certain 5,000,000 tons/year treating capacity; The pipeline by-pass that advances two branch roads before the electrical desalter through the untreated oil line one-to-two inserts two single ultrasonic wave active regions, forms the parallelly connected parallel ultrasonic wave of multiple feed active region, two single ultrasonic wave active regions.Crude oil mixes the back through the one-level static mixer before taking off with the one-level water filling; Mix through the one-level mixing valve again; Then, through the parallel ultrasonic wave of multiple feed active region breakdown of emulsion, get into the one-level electrical desalter; The ultrasonic wave parameter control is by oil plant central control room DCS centralized Control, and DCS is through the control of the ultrasonic wave controller in switch board two ends, ultrasonic wave active region ultrasonic transducer.
With Fig. 1 is example, and the multiple feed ultrasonic dehydration of certain 5,000,000 tons of/year crude charging capacity is implemented preceding simple electro-desalting effect comparison with this invention and demarcated in the enforcement of one-level electro-desalting.The multiple feed ultrasonic dehydration of 5,000,000 tons of/year crude charging capacities substitutes demulsifier fully after the enforcement of one-level electro-desalting, produce following effect:
Before the using ultrasound ripple after the using ultrasound ripple
One takes off about the average saliferous 5.0mg/L in back one takes off the average saliferous 2.6mg/L in back
One takes off about the draining average oil-containing 150mg/L of back one takes off the average oil-containing of back draining and is not more than 60mg/L
One takes off about the draining average COD 2200mg/L of back one takes off back draining average COD and is not more than 1000mg/L
The two-stage electro-desalting of the electro-desalting one-to-two charging of the oil plant of certain 5,000,000 tons/year treating capacity; 2 ultrasonic wave active regions are installed on the branch road of one-to-two; Implement the parallel ultrasonic dehydration of multiple feed in one-level; Ultrasonic dehydration has substituted demulsifier fully, reaches one-level and on average takes off the back saliferous and reduce by 48%, one and take off back draining oil-containing and reduce by 60% or more, one take off the effect of back draining COD value reduction more than 60%.
The method of certain 5,000,000 tons of/year crude charging capacity multiple feed ultrasonic wave-electro-desalting associating and device are in the enforcement of two-stage electro-desalting
The electro-desalting effect relatively before and after the multiple feed ultrasonic wave-method of electro-desalting associating and the two-stage electro-desalting of device were implemented.
The oil plant of certain 5,000,000 tons of/year treating capacity is the two-stage electro-desalting of one-to-two charging; Before one-level, secondary electrical desalter, pass through respectively to introduce the parallel ultrasonic wave of multiple feed active region by by-pass on the tap line of one-to-two; One-level constitutes the parallel ultrasonic wave of multiple feed active region by 2 identical ultrasonic wave active region parallel connections of version, and secondary constitutes the parallel ultrasonic wave of multiple feed active region by 2 identical ultrasonic wave active region parallel connections of version.
Crude oil mixes the back through the one-level static mixer before taking off with the one-level water filling; Mix through the one-level mixing valve again, then, through the parallel ultrasonic wave of the multiple feed active region breakdown of emulsion of 2 ultrasonic wave active regions formations; Get into the one-level electrical desalter; The gravity of one-level electrical desalter and high voltage electric field acting in conjunction under water-oil separating, one takes off the back draining discharges at the bottom of by jar, one takes off back crude oil is derived by tank deck; One takes off back crude oil mixes the back again through the mixing of secondary static mixer with the secondary water filling; Mix through the secondary mixing valve again, then, through the parallel ultrasonic wave of the multiple feed active region breakdown of emulsion of 2 ultrasonic wave active regions formations; Get into the secondary electrical desalter; Water-oil separating under the acting in conjunction of the gravity of secondary electrical desalter and high voltage electric field, two take off the back draining discharges at the bottom of by jar, and two take off back crude oil is derived by tank deck.
The ultrasonic wave parameter control is by oil plant central control room DCS centralized Control, and DCS is through the control of the ultrasonic wave controller in switch board two ends, ultrasonic wave active region ultrasonic transducer.
The method of the oil plant multiple feed ultrasonic wave of certain 5,000,000 tons of/year treating capacity-electro-desalting associating and the effect that device is implemented in the two-stage electro-desalting are following:
(1) desalting effect relatively
The method and the device of multiple feed ultrasonic wave-electro-desalting associating are compared with two-stage electro-desalting implementation result in the two-stage electro-desalting; The method of multiplex ultrasonic-electro-desalting associating and device are after the two-stage electro-desalting is implemented, and average one takes off and contains salt figure after back saliferous, average two takes off and all obviously reduce.
The electro-desalting of the oil plant of certain 5,000,000 tons/year treating capacity is the two-stage electro-desalting of one-to-two charging; 2 ultrasonic wave active regions are installed on the branch road of the one-to-two of one-level, secondary respectively; All implement the parallel ultrasonic dehydration of multiple feed at one-level, secondary, compare with two-stage electro-desalting effect: the parallel ultrasonic dehydration of two-stage multiple feed has substituted demulsifier fully; Average one-level is taken off the back saliferous and is reduced to 3.58mg/L by 4.49mg/L, reduces by 20.3%; Average secondary takes off the back saliferous and reduces to 1.67mg/L by 2.52mg/L, reduces by 33.7%, reaches the purpose of advanced desalination.
(2) comparison of total draining oil-containing and COD value
The electro-desalting of the oil plant of certain 5,000,000 tons/year treating capacity is the two-stage electro-desalting of one-to-two charging; 2 ultrasonic wave active regions are installed on the branch road of the one-to-two of one-level, secondary respectively; All implement the parallel ultrasonic dehydration of multiple feed at one-level, secondary, compare with two-stage electro-desalting effect: the parallel ultrasonic dehydration of two-stage multiple feed has substituted demulsifier fully; Average total draining oil-containing is reduced to 43.51mg/L by 132.60mg/L, has reduced by 67.2%, has positive role to reducing the oil refining refining losses; Total draining average COD value is reduced to 954mg/L by 2106mg/L, has reduced by 54.7%, has alleviated the difficulty that sewage from oil refinery is handled.
Claims (14)
1. the method for a multiple feed ultrasonic wave-electro-desalting associating; Comprise electrical desalter, ultrasonic wave active region; The mode that crude oil advances electrical desalter is a multiple feed, it is characterized in that: advance at crude oil on the pipeline of electrical desalter to be parallel with the ultrasonic wave active region, form the parallel ultrasonic wave of multiple feed active region; This parallel ultrasonic wave active region is at least by 1 single ultrasonic wave active region parallel connection; Crude stream is crossed parallel ultrasonic wave active region and uniform distribution in single ultrasonic wave active region, and behind the breakdown of emulsion, crude oil gets into electrical desalter and carries out gravitational settling and/or electric field separates under action of ultrasonic waves.
2. method according to claim 1; It is characterized in that each is parallel with the ultrasonic wave active region respectively on along separate routes in that crude oil advances electrical desalter; Form the parallel ultrasonic wave of multiple feed active region, this parallel ultrasonic wave active region is at least by 1 single ultrasonic wave active region parallel connection, and crude stream is crossed parallel ultrasonic wave active region and uniform distribution in single ultrasonic wave active region; Behind the breakdown of emulsion, crude oil gets into electrical desalter and carries out gravitational settling and/or electric field separates under action of ultrasonic waves.
3. method according to claim 1 and 2; At least one ultrasonic transducer is installed at the two ends that it is characterized in that the single ultrasonic wave active region of the parallel ultrasonic wave of said multiple feed active region respectively; Produce and crude oil flow direction following current ultrasonic wave in the same way and reverse adverse current ultrasonic wave, on the direction of ultrasonic wave radiation, the reflecting surface of ultrasonic wave active region can not be set to curved-surface structure; To prevent producing hyperacoustic focusing and stack, prevent to cause oil-water emulsion.
4. method according to claim 1 and 2 is characterized in that the parallel ultrasonic wave of said multiple feed active region is through the pipeline by-pass or on the pipeline before directly inserting electrical desalter.
5. method according to claim 1 and 2 is characterized in that the parallel ultrasonic wave of said multiple feed active region is by single ultrasonic wave active region parallel connection identical more than 1.
6. method according to claim 1 and 2 is characterized in that the parallel ultrasonic wave of said multiple feed active region is the duct type structure and is connected with the profit pipeline that single ultrasonic wave active region is a straight tube.
7. method according to claim 1 and 2 is characterized in that the parallel ultrasonic wave of said multiple feed active region is the duct type structure and is connected with the profit pipeline that single ultrasonic wave active region is the duct type structure of reducing tubulose.
8. method according to claim 1 and 2 is characterized in that installing on the mixed pipeline of profit before the parallel ultrasonic wave of said multiple feed active region can be chosen in electro-desalting at different levels such as one-level, secondary, three grades.
9. method according to claim 1 and 2 is characterized in that the ultrasonic wave of the single ultrasonic wave active region of the parallel ultrasonic wave of said multiple feed active region is propagated with the uniform sound intensity, and hyperacoustic intensity is at 0.1-0.5w/cm
2Scope.
10. one kind is used in the parallel ultrasonic wave of the said multiple feed of one of claim 1-9-electro-desalting combined unit; Comprise electrical desalter, ultrasonic wave active region; The mode that crude oil advances electrical desalter is a multiple feed; It is characterized in that: advance at crude oil on the pipeline of electrical desalter to be parallel with the ultrasonic wave active region, form the parallel ultrasonic wave of multiple feed active region, this parallel ultrasonic wave active region is at least by 1 single ultrasonic wave active region parallel connection.
11. device according to claim 10; It is characterized in that: each is parallel with the ultrasonic wave active region respectively on along separate routes in that crude oil advances electrical desalter; Form the parallel ultrasonic wave of multiple feed active region, this parallel ultrasonic wave active region is at least by 1 single ultrasonic wave active region parallel connection.
12. according to claim 10 or 11 described devices, it is characterized in that at least 1 ultrasonic transducer is installed at the two ends of said single ultrasonic wave active region respectively, produce and crude oil flow direction following current ultrasonic wave in the same way and reverse adverse current ultrasonic wave.
13., it is characterized in that the parallel ultrasonic wave of multiple feed active region is by 2 above structure is identical, volume is identical identical with connected mode single ultrasonic wave active region parallel connections according to claim 10 or 11 described devices.
14., it is characterized in that on the mixed pipeline of profit before the parallel ultrasonic wave of multiple feed active region is installed in electro-desalting at different levels such as one-level, secondary, three grades according to claim 10 or 11 described devices.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539559Y (en) * | 2002-03-28 | 2003-03-12 | 中国石化集团齐鲁石油化工公司 | Crude oil ultrasonic wave-electric field combined desalination device |
| CN1589947A (en) * | 2003-08-27 | 2005-03-09 | 中国石油化工股份有限公司 | Method and device for breaking oil water emulsion using combined action of forward current and countercurrent flow ultrasonic wave |
| CN1772845A (en) * | 2005-10-24 | 2006-05-17 | 扬子石油化工股份有限公司 | Crude oil dehydration and desalination process |
| CN201404714Y (en) * | 2009-01-23 | 2010-02-17 | 中国石油化工集团公司 | Novel electric desalting and dehydrating device |
-
2010
- 2010-10-25 CN CN2010105170049A patent/CN102451579A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539559Y (en) * | 2002-03-28 | 2003-03-12 | 中国石化集团齐鲁石油化工公司 | Crude oil ultrasonic wave-electric field combined desalination device |
| CN1589947A (en) * | 2003-08-27 | 2005-03-09 | 中国石油化工股份有限公司 | Method and device for breaking oil water emulsion using combined action of forward current and countercurrent flow ultrasonic wave |
| CN1772845A (en) * | 2005-10-24 | 2006-05-17 | 扬子石油化工股份有限公司 | Crude oil dehydration and desalination process |
| CN201404714Y (en) * | 2009-01-23 | 2010-02-17 | 中国石油化工集团公司 | Novel electric desalting and dehydrating device |
Non-Patent Citations (1)
| Title |
|---|
| 达建文: "超声波强化原油破乳电脱盐技术的工业实践", 《炼油技术与工程》 * |
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Application publication date: 20120516 |