CN101886740B - Coagulation point decreasing and drag reducing agent in crude oil transportation - Google Patents
Coagulation point decreasing and drag reducing agent in crude oil transportation Download PDFInfo
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- CN101886740B CN101886740B CN201010218599A CN201010218599A CN101886740B CN 101886740 B CN101886740 B CN 101886740B CN 201010218599 A CN201010218599 A CN 201010218599A CN 201010218599 A CN201010218599 A CN 201010218599A CN 101886740 B CN101886740 B CN 101886740B
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- Prior art keywords
- crude oil
- sodium sulfate
- ether sodium
- reducing agent
- drag reducing
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- 239000010779 crude oil Substances 0.000 title claims abstract description 46
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 11
- 230000015271 coagulation Effects 0.000 title 1
- 238000005345 coagulation Methods 0.000 title 1
- 230000003247 decreasing effect Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 230000000881 depressing effect Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 7
- 239000011734 sodium Substances 0.000 claims abstract description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 30
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 claims description 16
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 15
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 15
- 235000011152 sodium sulphate Nutrition 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 10
- 229940043348 myristyl alcohol Drugs 0.000 claims description 8
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 8
- 239000004094 surface-active agent Substances 0.000 claims description 8
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000005886 esterification reaction Methods 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 238000012958 reprocessing Methods 0.000 claims description 2
- 150000003470 sulfuric acid monoesters Chemical class 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 239000002736 nonionic surfactant Substances 0.000 abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 2
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract 2
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract 2
- 229910052708 sodium Inorganic materials 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 description 12
- 239000003921 oil Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 polyoxydivinyl Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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Abstract
The invention relates to a pour point depressing and drag reducing agent in crude oil transportation, which is prepared by compounding an anionic-nonionic surfactant sodium tetradecyl polyoxyethylene ether sulfate, an anionic surfactant penetrating agent BX and water. The invention also relates to an industrial production method for the anionic-nonionic surfactant sodium tetradecyl polyoxyethylene ether sulfate. The invention can reduce the solidifying point of wax-bearing crude oil by 10 to 15 DEG C, so the crude oil is in a flow state at the transportation temperature, and the flow resistance in the pipe transmission of the crude oil is reduced; meanwhile, when the product is used on site, the crude oil is not needed to be heated, and the product is used at normal temperature in real time.
Description
Technical field
The present invention relates to pour point depressing and drag reducing agent and actual at the scene method for using in a kind of crude oil transportation process.
Background technique
Crude oil in China has the characteristic that viscosity is big, solidifying point is high mostly, and under the normal temperature, viscosity of crude is higher, and is mobile relatively poor, even can not flow, and causes big difficulty for the normal temperature conveying of crude oil.Two kinds of methods of general employing in crude oil transportation: the one, adopt the heating delivery technology, this process energy consumption is big, this height of ability; The 2nd, adopt to add pour-point depressant: improve the low temperature flow of crude oil, reduce the oil transportation temperature, solve the flow resistance of crude pipeline transportation, reach safety, economic purpose.
The at present on-the-spot pour point depressing and drag reducing agent that uses all requires heating crude oil in use under flowing state, pour point depressing and drag reducing agent is added in the crude oil of temperature flowing by a certain percentage to stir again, can transport.In crude oil transportation (pipe the is defeated) process, adopt two kinds of methods solution crude oil normal temperature current downflow property differences or be in the transport issues under the curdled appearance condition at present.
First method: to its temperature more than solidifying point, make crude oil be in flowing state heating crude oil, carry out pipeline transportation then.In the pipeline transportation process, must guarantee that the temperature of ducted crude oil is higher than its freezing point temperature all the time, could guarantee normally transporting of crude oil.For this reason, must add a high-temperature steam heat traced pipeline simultaneously on the petroleum pipeline side, to guarantee to keep the temperature in the crude oil pipeline.The rising that this must cause oil transportation cost causes the non-safety that uses in the high-temperature steam process.
Second method: use chemical pour-point depressant.The chemistry pour-point depressant can make the solidifying point of crude oil reduce, thereby make crude oil be in flowing state at normal temperature or near under the normal temperature, has made things convenient for transporting of crude oil.
At present, the on-the-spot pour-point depressant kind of using is more, and using effect is irregular to differ, and can only reduce the solidifying point of crude oil below 10 ℃.But use technology basic identical: must make crude oil be in flowing state heating crude oil to more than the freezing point temperature, add a certain amount of pour-point depressant then, stirring makes it to mix with crude oil, thereby reaches the purpose of pour point depression.
Summary of the invention
The object of the present invention is to provide the pour point depressing and drag reducing agent in a kind of crude oil transportation, to satisfy the needs that normally transport crude oil under the normal temperature condition, need be when use at product of the present invention scene with heating crude oil, instant at normal temperatures the use gets final product.
Pour point depressing and drag reducing agent in a kind of crude oil transportation provided by the invention is by anion-nonionic surface active agent " alkylol polyethenoxy ether sodium sulfate ", anionic surfactant penetrating agent BX with water is composite forms.
A cloudy non-ionic surfactant agent " alkylol polyethenoxy ether sodium sulfate " is " a tetradecyl alchohol polyethenoxy ether sodium sulfate ", and its molecular formula is: C
14H
29O (CH
2CH
2O)
3SO
3Na
The anionic surfactant penetrating agent BX is " 1,4 ,-nekal "
Anion-nonionic surface active agent " tetradecyl alchohol polyethenoxy ether sodium sulfate " is 7: 3: 10 with the mass ratio of anionic surfactant " penetrating agent BX " (market purchase) and water.
Anion-nonionic surface active agent " tetradecyl alchohol polyethenoxy ether sodium sulfate " and anionic surfactant penetrating agent BX, water stirred at normal temperatures got final product in 30 minutes.
Synthesizing of anion-nonionic surface active agent " myristyl alcohol polyethenoxy ether sodium sulfate ":
Tetradecyl alchohol and ethylene oxide carry out condensation, and myristyl alcohol APEO that obtains and concentrated sulphuric scid generation mono-esterification generate alkylol APEO sulfuric acid monoester, get finished product with alkali neutralization and reprocessing at last.
C
14H
29O(CH
2CH
2O)
3H+H
2SO
4→C
14H
29O(CH
2CH
2O)
3SO
3H+H
2O
C
14H
29O(CH
2CH
2O)
3SO
3H+NaOH→C
14H
29O(CH
2CH
2O)
3SO
3Na+H
2O
Pour point depression of crude oil friction-reducing additive provided by the invention can reduce 10-15 ℃ with former oil freezing point, when using at the scene; Needn't treat heating crude oil in the output oil but directly add at normal temperatures, stir or use the thick oil pump circulation and stir with certain proportion; Crude oil is solidified decide the reduction certain value, crude oil can present the normal temperature flowing state, when fundamentally having solved traditional pour-point depressant and using; The problem of necessary first heating in crude oil; Greatly reduced user cost, and easy to use, practiced thrift the energy, realized low carbonization.
Description of drawings
Fig. 1 is the process flow diagram of anion-nonionic surface active agent of the present invention.
Embodiment
Embodiment 1: followingly through embodiment the present invention is further described
1, anion-nonionic surface active agent " myristyl alcohol polyethenoxy ether sodium sulfate " is synthetic:
In the condensation reaction still, drop into the 226kg hydroxyl value and be 275～320 tetradecyl alchohol and the caustic potoash of 5kg50%, vacuumize, stir time gradually heat temperature raising.When temperature reaches 110-120 ℃, when the visor internal surface has not had water droplet or water smoke on the still, think that the interior material dewatering of still is complete basically.Extract air, logical again nitrogen drives most air for several times.Under 130-140 ℃, feed ethylene oxide then, keep still internal pressure 0.1-0.2MPa.When the ethylene oxide that feeds has reached 162kg, stop to feed, let it reduce to normal pressure naturally, and be cooled to about 5 ℃.Add the 215.5kg concentrated sulphuric scid again and carry out single-esterification, add back stirring reaction 1h.Neutralize with the caustic soda alcoholic solution then and promptly obtain finished product.
2, myristyl alcohol polyethenoxy ether sodium sulfate and penetrating agent BX is composite
Add 100kg water, 70kg tetradecyl alchohol polyethenoxy ether sodium sulfate in the reaction kettle, add penetrating agent BX " 1,4 ;-nekal " 30kg while stirring, continuous stirring stopped about 30 minutes under the normal temperature and pressure, got to put into graduated cylinder as sample about mixture 100g in the still and left standstill 10-20 minute; If sample is not stratified, promptly mix fully, otherwise; Continue to stir, till mixing cmpletely.After mixing fully, this solution is " pour point depressing and drag reducing agent in the crude oil transportation " of the present invention.
The using effect contrast
Compare the on-the-spot a kind of pour-point depressant (comparison sample) that is using and the service condition and the pour point depression effect of pour-point depressant of the present invention (standard sample):
Each pour-point depressant service condition of table 1 and pour point depression effect comparison
Annotate: crude oil is oil recovery factory, Yichuan, Yichuan County, Shaanxi Province crude oil, and solidifying point is 38 ℃, and the result shows; This invention pour-point depressant uses down at normal temperature (25 ℃), makes condensation point of crude oil reduce by 17 ℃, is reduced to 21 ℃; Down for flowing state, solved crude oil normal temperature transport issues at normal temperature (25 ℃) basically.
Table 2 should the best proportioning contrast of invention pour-point depressant
(myristyl alcohol polyoxydivinyl ether sodium sulfate: the BX penetrating agent)
| The component mass ratio | 6∶4 | 7∶3 | 8∶2 |
| Former oil freezing point (℃) | 23 | 21 | 22 |
Annotate: 1, crude oil is oil recovery factory, Yichuan County crude oil, and condensation point is 28 ℃
2, serviceability temperature is 25 ℃
The result shows: best (quality) ratio of this invention pour-point depressant each component is a myristyl alcohol polyoxydivinyl ether sodium sulfate: BX penetrating agent=7: 3.
Claims (2)
1. the pour point depressing and drag reducing agent in the crude oil transportation is characterized in that be at normal temperatures to stir at 7: 3: 10 promptly to get in 30 minutes by anion-nonionic surface active agent alkylol polyethenoxy ether sodium sulfate, anionic surfactant penetrating agent BX and water with mass ratio;
Wherein anion-nonionic surface active agent alkylol polyethenoxy ether sodium sulfate is the tetradecyl alchohol polyethenoxy ether sodium sulfate, and its molecular formula is: C
14H
29O (CH
2CH
2O)
3SO
3Na; The anionic surfactant penetrating agent BX is 1, the 4-nekal.
2. the pour point depressing and drag reducing agent in a kind of crude oil transportation as claimed in claim 1 is characterized in that the synthesis process of myristyl alcohol polyethenoxy ether sodium sulfate is:
Tetradecyl alchohol and ethylene oxide carry out condensation, and myristyl alcohol APEO that obtains and concentrated sulphuric scid generation mono-esterification generate alkylol APEO sulfuric acid monoester, get finished product with alkali neutralization and reprocessing at last.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010218599A CN101886740B (en) | 2010-07-05 | 2010-07-05 | Coagulation point decreasing and drag reducing agent in crude oil transportation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010218599A CN101886740B (en) | 2010-07-05 | 2010-07-05 | Coagulation point decreasing and drag reducing agent in crude oil transportation |
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| Publication Number | Publication Date |
|---|---|
| CN101886740A CN101886740A (en) | 2010-11-17 |
| CN101886740B true CN101886740B (en) | 2012-10-10 |
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|---|---|---|---|
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| US11813602B2 (en) | 2019-02-04 | 2023-11-14 | Innospec Limited | Polymerisation method and apparatus therefor |
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| CN105199030B (en) * | 2015-11-03 | 2017-08-25 | 西安长庆化工集团有限公司 | A kind of pour point depressing and drag reducing agent and preparation method thereof |
| CN106146822B (en) * | 2016-07-22 | 2018-04-20 | 大庆华营化工有限公司 | A kind of preparation method of crude oil thinner |
| CN108843973B (en) * | 2018-05-31 | 2021-01-29 | 中国石油天然气集团有限公司 | Resistance reducing agent for coiled tubing, preparation method and application |
| GB201901503D0 (en) | 2019-02-04 | 2019-03-27 | Innospec Ltd | Chemical reactions |
| GB201901499D0 (en) * | 2019-02-04 | 2019-03-27 | Innospec Ltd | Polymeric materials |
| CN114686533B (en) * | 2022-03-30 | 2022-10-25 | 东北石油大学 | Preparation method of biological drag reducer for high-coagulation high-viscosity crude oil transportation |
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| CN1025680C (en) * | 1992-04-03 | 1994-08-17 | 山东大学 | Viscosity decreasing ayent for high-consistency crude oil |
| CN1137238C (en) * | 2000-08-30 | 2004-02-04 | 中国石油化工股份有限公司 | Emulsifying pour-point depressant for thick oil and its preparing process |
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2010
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Non-Patent Citations (2)
| Title |
|---|
| 朱红，关润伶，申靓梅.原油降粘剂组分的红外光谱及核磁共振氢谱的分析研究.《光谱学与光谱分析》.2007,第27卷(第1期), * |
| 李一鸣,吴晓静,沈梦霞,亓东浩,徐冠球,包木太.表面活性剂复配体系BS-9在稠油乳化降黏中的应用性能研究.《油田化学》.2010,第27卷(第1期), * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11813602B2 (en) | 2019-02-04 | 2023-11-14 | Innospec Limited | Polymerisation method and apparatus therefor |
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| Publication number | Publication date |
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| CN101886740A (en) | 2010-11-17 |
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