CN104650336A - Preparation method of novel organic amine demulsifier - Google Patents
Preparation method of novel organic amine demulsifier Download PDFInfo
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Abstract
The invention discloses a preparation method of a novel organic amine demulsifier. The method comprises the following steps: (1) firstly, carrying out a polymerization reaction on ethanolamine and epoxypropane so as to obtain a polymerization intermediate product, wherein the ethanolamine is any one or any mixtures of monoethanolamine, diethanolamine and triethanolamine; (2) secondly, carrying out a polymerization reaction on the polymerization intermediate product and ethylene oxide so as to obtain a macromolecule polymerization product, wherein during the polymerization reaction in two steps, reaction pressure is controlled to be less than or equal to 0.4MPa, reaction temperature is kept at 130-140 DEG C and the polymerization reaction ends until the reaction pressure stops dropping; and (3) finally, mixing and diluting the target macromolecule polymerization product with a solvent so as to obtain the organic amine demulsifier. The novel organic amine demulsifier prepared by the invention is a dual-functional agent which is strong enough in electrophilic capacity to balance negative charges formed by an emulsifier, and the demulsifier has a quite strong surfactant to break the interfacial energy of an emulsion; and the demulsifier has the characteristics of rapid oil and water separation speed and low oil content in water.
Description
Technical field
The invention belongs to oil-field development petroleum chemistry auxiliary agent technical field, particularly relate to a kind of preparation method of novel organic amine emulsion splitter.
Background technology
At present, the whole world approximately produces 8,600,000 tons of crude oil, the water of at least extraction equivalent amount every day.In each oilfield development process, oil well generally all can experience not Water-cut Period, Water-cut Period and high water-cut stage 3 mining phases.After oil well water breakthrough, the crude oil generation emulsification of extraction, viscosity and zero pour raise, and cause wax deposition, time serious, oil well accident occur, and even cause stopping production, crude production rate is declined, and production cost increases considerably.In addition, owing to containing large water gaging in crude oil, simultaneously containing natural surface active agents such as resin, colloid, bituminous matter and organic acids, they are adsorbed on water-oil interface, form the interfacial film with some strength, the globule are difficult to coalescent.Therefore, most water forms stable emulsion of crude oil with extremely small Granular composite in crude oil, brings great difficulty to oily water separation.If crude oil does not dewater, except bringing oil recovery difficulty, directly can not enter refinery processing simultaneously, also can the equipment such as corrosion pipeline and oil tank in conveying and storage process, sewage band oil can cause environmental pollution again, and therefore, dehydrating of crude oil is the production link that must carry out in Oil extraction.In multiple water-eliminating method, add the most effective means using physico-chemical process to dewater after emulsion splitter to be the water rapidly and efficiently sloughed in crude oil.
Domestic each elephant has entered ultra-high water-containing development late stage, former difficult-to-produce reserves (oil reservoir as poor in high viscous oil, super-viscous oil, geologic condition) is now progressively developed, usedly adopt by force injection well stimulation and day by day increase, comparatively primary oil recovery, secondary phase of oil production there occurs significant change to cause Produced Liquid character in current performance history, the particularly extensive enforcement of tertiary oil recovery, make Produced Liquid character more complicated, this brings larger difficulty also to ground profit process.As the introducing of tensio-active agent various in acidizing treatment, the employing of water-soluble polymer frozen glue in plug water construction, and the extensive use of emulsifying and viscosity-reducing agent for condensed oil, alkali, polymkeric substance, tensio-active agent ternary composite driving have become the important means of stable yields volume increase at each elephant.The enforcement of these measures, make the easier Produced Liquid of former dehydration define metastable emulsion system, this brings more hang-up to crude oil demulsification dehydration, forms many new problems, as the profit process of tertiary oil recovery produced liquid; The Application and Development of thick oil demulsifier; The research application etc. of shallow oil reservoir low-temperature demulsifying agent.All there is an outstanding feature in the solution process of these problems, namely require that emulsion splitter possesses dehydration breakdown of emulsion ability efficiently.
Common emulsion splitter usually with the condensation product of alkylphenol, vinyl-amine compounds and formaldehyde for initiator, the polyether type demulsifying agent effect of generation is better, and adaptability is wider.But due to the active group of alkylphenol less, synthesize the polyethers side chain that obtains less, and molecular weight is relatively low, destroys its demulsification performance.
Have not yet to see the relevant report reacting to obtain organic amine emulsion splitter with thanomin and propylene oxide, ethylene oxide polymerization.
Summary of the invention
Object of the present invention provides a kind of preparation method of novel organic amine emulsion splitter, and it take thanomin as initiator, by adjustment thanomin and propylene oxide, ethylene oxide block polymerization ratio, thus obtains the good novel emulsion splitter of the breaking emulsion and dewatering impact of performance.Reactive Synthesis of the present invention has multiple active group, and the novel emulsion splitter containing multiple side chain in molecule, the breaking emulsion and dewatering performance of single dose is improved with this.
To achieve these goals, the present invention provides the preparation method of novel organic amine emulsion splitter, and its step comprises:
(1), first by thanomin and propylene oxide in mass ratio 1:20 ~ 200 polyreaction obtain middle polymerisate; Described polyreaction needs to control reaction pressure≤0.4Mpa, and temperature of reaction keeps 130 ~ 140 DEG C; Described thanomin is a kind of or several arbitrarily mixing in Monoethanolamine MEA BASF, diethanolamine and trolamine;
(2), secondly middle polymerisate and oxyethane are carried out polyreaction obtains target macromolecule polymerisate, and the consumption of described oxyethane is 15 ~ 65 times of thanomin quality in step (1); Described polyreaction needs to control reaction pressure≤0.4Mpa, and temperature of reaction keeps 130 ~ 140 DEG C, and described polyreaction no longer drops to terminal with reaction pressure;
(3), finally described target macromolecule polymerisate and solvent are diluted and namely obtain organic amine emulsion splitter.
Such scheme can more preferably:
In described step (1), thanomin and propylene oxide are preferably 1:90-150 in mass ratio, and optimum proportion is 1:95-100.The consumption of described step (2) ethylene oxide is preferably 40 ~ 65 times of thanomin quality in step (1), and the best is 50-55 times.
The polyreaction of described step (1) is divided into following two steps to carry out (by regulating the consumption of two step propylene oxide, stepwise reaction can improve the effect of polyreaction):
A, first by thanomin and propylene oxide in mass ratio 1:8-12 carry out first polyreaction, described first polyreaction needs to control reaction pressure≤0.4Mpa, and temperature of reaction keeps 130 ~ 140 DEG C; Described polyreaction no longer drops to terminal with reaction pressure;
B, then the product of first polyreaction and remaining propylene oxide are carried out after polymerization reaction, described after polymerization reaction needed controls reaction pressure≤0.4Mpa, and temperature of reaction keeps 130 ~ 140 DEG C.
Described solvent is the mixed solvent that methyl alcohol and water are mixed to get according to mass ratio 3:2, and the mass ratio of described mixed solvent consumption and target macromolecule polymerisate is 1:1.
The polyreaction of described step (1) and (2) all adds catalyzer, and described catalyzer is highly basic, and optimal selection is potassium hydroxide, and its consumption is 1 ‰ ~ 2 ‰ of the total charging capacity of thanomin, propylene oxide and oxyethane.The speed that catalyzer can improve polyreaction is added in polymerization process.When step (1) is divided into two steps to carry out, the catalyzer that first polyreaction adds is the 2-3% of thanomin quality.
Carry out under the polyreaction of described step (1) and (2) all will maintain anaerobic, water-less environment, anaerobic, water-less environment are conducive to the carrying out of polyreaction.Described oxygen-free environment is obtained by the mode of nitrogen replacement;
Water-less environment is obtained by the mode of vacuum hydro-extraction, and the temperature of described vacuum hydro-extraction is 100 DEG C ~ and l10 DEG C, pressure are-0.08 ~-0.10 Mpa.
Novel organic amine emulsion splitter prepared by the present invention is bifunctional medicament, has the negative charge that very strong close charge capability is enough to balance emulsifying agent formation; And have very strong tensio-active agent, the interfacial energy of milk sap can be destroyed, have that oily water separation speed is fast, oleaginousness is low in water feature.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
Below in conjunction with embodiment, illustrate the preparation of organic amine emulsion splitter further, but the present invention is not limited to these embodiments.
Embodiment 1
The first step
Monoethanolamine MEA BASF 303kg and 3kg KOH catalyzer are added in polyether reactant still; open and stir; temperature of reaction kettle is controlled to 30 DEG C ~ 40 DEG C; vacuum makes close-0.08 ~-0.10 Mpa of pressure in still; then pass into nitrogen protection; vacuum makes close-0.08 ~-0.10 Mpa of pressure in still again, then passes into nitrogen protection, repeatable operation three times; Then slowly pass into 2700kg propylene oxide, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130 ~ 140 DEG C; Logical complete, maintain temperature of reaction, continue to stir aging absorption and no longer decline to pressure, reaction end, discharging is for subsequent use.
Second step
Above-mentioned material 300kg and 8kg KOH catalyzer are added in polyether reactant still, opens and stir, by heating material to 100 DEG C ~ l10 DEG C; vacuum hydro-extraction (about needing 10min); when distillating to exclusion, close vacuum valve, make close-0.08 ~-0.10 Mpa of pressure in still; Then slowly pass into 2700kg propylene oxide, 1285kg oxyethane, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130 ~ 140 DEG C; Logical complete, maintenance temperature of reaction, continuation is stirred aging absorption and is no longer declined to pressure, reaction end, passes into the even rear blowing of 4285kg methanol-water mixture and namely obtains demulsifier product.
Detecting this emulsion splitter for the Gudao area of Shengli Oilfield oil recovery factory next oily dehydration rate of lonely five joint stations is 91.4%; Carrying out oily dehydration rate for pungent three joint stations of Dongxing oil fields in Shengli is 92.6%.
Embodiment 2
The first step
Monoethanolamine MEA BASF 252.5kg and 3kg KOH catalyzer are added in polyether reactant still, open and stir, temperature of reaction kettle is controlled to 30 DEG C ~ 40 DEG C, vacuum makes close-0.08 ~-0.10 Mpa of pressure in still, then pass into nitrogen protection, vacuum makes close-0.08 ~-0.10 Mpa of pressure in still again, then passes into nitrogen protection, repeatable operation three times; Then slowly pass into 2500kg propylene oxide, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130 ~ 140 DEG C; Logical complete, maintain temperature of reaction, continue to stir aging absorption and no longer decline to pressure, reaction end, discharging is for subsequent use.
Second step
Above-mentioned material 220kg and 8kg KOH catalyzer are added in polyether reactant still, opens and stir, by heating material to 100 DEG C ~ l10 DEG C, vacuum hydro-extraction (about needing 20min), when distillating to exclusion, close vacuum valve, make close-0.08 ~-0.10 Mpa of pressure in still; Then slowly pass into 2640kg propylene oxide successively, 1285kg oxyethane, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130 ~ 140 DEG C; Logical complete, maintenance temperature of reaction, continuation is stirred aging absorption and is no longer declined to pressure, reaction end, passes into the even rear blowing of 4145kg methanol-water mixture and namely obtains demulsifier product.
Detecting this emulsion splitter for the Gudao area of Shengli Oilfield oil recovery factory next oily dehydration rate of lonely five joint stations is 92.5%; Carrying out oily dehydration rate for pungent three joint stations of Dongxing oil fields in Shengli is 92.6%.
Embodiment 3
The first step
Diethanolamine 303kg and 3kg KOH catalyzer are added in polyether reactant still; open and stir; temperature of reaction kettle is controlled to 30 DEG C ~ 40 DEG C; vacuum makes close-0.08 ~-0.10 Mpa of pressure in still; then pass into nitrogen protection; vacuum makes close-0.08 ~-0.10 Mpa of pressure in still again, then passes into nitrogen protection, repeatable operation three times; Then slowly pass into 2700kg propylene oxide, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130 ~ 140 DEG C; Logical complete, maintain temperature of reaction, continue to stir aging absorption and no longer decline to pressure, reaction end, discharging is for subsequent use.
Second step
Above-mentioned material 300kg and 8kg KOH catalyzer are added in polyether reactant still, opens and stir, by heating material to 100 DEG C ~ l10 DEG C; vacuum hydro-extraction (about needing 10min); when distillating to exclusion, close vacuum valve, make close-0.08 ~-0.10 Mpa of pressure in still; Then slowly pass into 2700kg propylene oxide successively, 1615kg oxyethane, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130 ~ 140 DEG C; Logical complete, maintenance temperature of reaction, continuation is stirred aging absorption and is no longer declined to pressure, reaction end, passes into the even rear blowing of 4615kg methanol-water mixture and namely obtains demulsifier product.
Detecting this emulsion splitter for the Gudao area of Shengli Oilfield oil recovery factory next oily dehydration rate of lonely five joint stations is 94.4%; Carrying out oily dehydration rate for pungent three joint stations of Dongxing oil fields in Shengli is 94.3%.
Embodiment 4
The first step
Trolamine 294kg and 3kg KOH catalyzer are added in polyether reactant still; open and stir; temperature of reaction kettle is controlled to 30 DEG C ~ 40 DEG C; vacuum makes close-0.08 ~-0.10 Mpa of pressure in still; then pass into nitrogen protection; vacuum makes close-0.08 ~-0.10 Mpa of pressure in still again, then passes into nitrogen protection, repeatable operation three times; Then slowly pass into 2500kg propylene oxide, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130 ~ 140 DEG C; Logical complete, maintain temperature of reaction, continue to stir aging absorption and no longer decline to pressure, reaction end, discharging is for subsequent use.
Second step
Above-mentioned material 220kg and 8kg KOH catalyzer are added in polyether reactant still, opens and stir, by heating material to 100 DEG C ~ l10 DEG C; vacuum hydro-extraction (about needing 10min); when distillating to exclusion, close vacuum valve, make close-0.08 ~-0.10 Mpa of pressure in still; Then slowly pass into 2380kg propylene oxide successively, 1400kg oxyethane, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130 ~ 140 DEG C; Logical complete, maintenance temperature of reaction, continuation is stirred aging absorption and is no longer declined to pressure, reaction end, passes into the even rear blowing of 4000kg methanol-water mixture and namely obtains demulsifier product.
Detecting this emulsion splitter for the Gudao area of Shengli Oilfield oil recovery factory next oily dehydration rate of lonely five joint stations is 90.4%; Carrying out oily dehydration rate for pungent three joint stations of Dongxing oil fields in Shengli is 92.8%.
Below be only the several typical embodiment that the present invention provides, wherein the technique effect of embodiment 3 is best; And through verification experimental verification, in scope, select other proportionings and the controling parameters of material, the demulsifier product same with above-mentioned four embodiments can be prepared equally, and demulsification is substantially suitable, just do not repeat one by one at this.
Claims (8)
1. a preparation method for novel organic amine emulsion splitter, is characterized in that, comprise the following steps:
(1), first by thanomin and propylene oxide in mass ratio 1:20 ~ 200 polyreaction obtain middle polymerisate; Described polyreaction needs to control reaction pressure≤0.4Mpa, and temperature of reaction keeps 130 ~ 140 DEG C; Described thanomin is a kind of or several arbitrarily mixing in Monoethanolamine MEA BASF, diethanolamine and trolamine;
(2), secondly middle polymerisate and oxyethane are carried out polyreaction obtains target macromolecule polymerisate, and the consumption of described oxyethane is 15 ~ 65 times of thanomin quality in step (1); Described polyreaction needs to control reaction pressure≤0.4Mpa, and temperature of reaction keeps 130 ~ 140 DEG C, and described polyreaction no longer drops to terminal with reaction pressure;
(3), finally described target macromolecule polymerisate and solvent are diluted and namely obtain organic amine emulsion splitter.
2. the preparation method of novel organic amine emulsion splitter according to claim 1, is characterized in that, in described step (1), thanomin and propylene oxide are 1:90-150 in mass ratio; The consumption of described step (2) ethylene oxide is 40 ~ 65 times of thanomin quality in step (1).
3. the preparation method of novel organic amine emulsion splitter according to claim 1 and 2, is characterized in that, is divided into following two steps to carry out in described step (1):
A, first by thanomin and propylene oxide in mass ratio 1:8-12 carry out first polyreaction, described first polyreaction needs to control reaction pressure≤0.4Mpa, and temperature of reaction keeps 130 ~ 140 DEG C; Described polyreaction no longer drops to terminal with reaction pressure;
B, then the product of first polyreaction and remaining propylene oxide are carried out after polymerization reaction, described after polymerization reaction needed controls reaction pressure≤0.4Mpa, and temperature of reaction keeps 130 ~ 140 DEG C.
4. the preparation method of novel organic amine emulsion splitter according to claim 1, it is characterized in that, described step (3) solvent is the mixed solvent that methyl alcohol and water are mixed to get according to mass ratio 3:2, and the mass ratio of described mixed solvent consumption and target macromolecule polymerisate is 1:1.
5. the preparation method of novel organic amine emulsion splitter according to claim 1, it is characterized in that, the polyreaction of described step (1) and (2) all adds catalyzer, and described catalyzer is highly basic, and its consumption is 1 ‰ ~ 2 ‰ of the total charging capacity of thanomin, propylene oxide and oxyethane.
6. the preparation method of novel organic amine emulsion splitter according to claim 5, is characterized in that, described highly basic is potassium hydroxide.
7. according to claim 1,2,4,5, the preparation method of 6 arbitrary described novel organic amine emulsion splitters, it is characterized in that, carry out under the polyreaction of described step (1) and (2) all will maintain anaerobic, water-less environment.
8. the preparation method of novel organic amine emulsion splitter according to claim 7, is characterized in that: described oxygen-free environment is obtained by the mode of nitrogen replacement; Described water-less environment is obtained by the mode of vacuum hydro-extraction, and the temperature of described vacuum hydro-extraction is 100 DEG C ~ and l10 DEG C, pressure are-0.08 ~-0.10 Mpa.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675620A (en) * | 2017-01-14 | 2017-05-17 | 北京化工大学 | Emulsion breaker for treating ageing oil and application thereof |
| CN107573499A (en) * | 2017-09-15 | 2018-01-12 | 延安大学 | A kind of preparation method of crude oil demulsifier |
| CN109232876A (en) * | 2018-08-20 | 2019-01-18 | 浙江皇马新材料科技有限公司 | A kind of preparation method of ethylol amine polyethers |
| CN115433352A (en) * | 2022-09-20 | 2022-12-06 | 胜利油田胜利化工有限责任公司 | Modified polyamine demulsifier and preparation method and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176847A (en) * | 1989-01-06 | 1993-01-05 | Baker Hughes Incorporated | Demulsifying composition |
| CN101240062A (en) * | 2007-12-21 | 2008-08-13 | 王伟松 | Synthetic method of triethanolamine block polyether |
| CN102286147A (en) * | 2011-06-23 | 2011-12-21 | 大连广汇科技有限公司 | Synthesis method for novel nonionic surfactant diethylamine block polyether |
| CN102471431A (en) * | 2009-09-17 | 2012-05-23 | 科莱恩金融(Bvi)有限公司 | Alkoxylated trialkanol amine condensates and the use thereof as demulsifiers |
| CN102634003A (en) * | 2012-04-24 | 2012-08-15 | 盘锦道博尔石油新技术开发有限公司 | Crude oil pre-dewatering agent |
| CN103011337A (en) * | 2012-10-30 | 2013-04-03 | 中国石油化工股份有限公司 | Polymer flooding produced liquid polymer retaining comprehensive treatment agent and application method |
| CN103937537A (en) * | 2014-03-27 | 2014-07-23 | 胜利油田胜利化工有限责任公司 | Preparation formula of high-flashing-point water-soluble demulsifying agent |
| CN103952177A (en) * | 2014-03-27 | 2014-07-30 | 胜利油田胜利化工有限责任公司 | Water purification type demulsifier for tertiary oil recovery, and preparation method thereof |
-
2015
- 2015-02-11 CN CN201510071386.XA patent/CN104650336A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176847A (en) * | 1989-01-06 | 1993-01-05 | Baker Hughes Incorporated | Demulsifying composition |
| CN101240062A (en) * | 2007-12-21 | 2008-08-13 | 王伟松 | Synthetic method of triethanolamine block polyether |
| CN102471431A (en) * | 2009-09-17 | 2012-05-23 | 科莱恩金融(Bvi)有限公司 | Alkoxylated trialkanol amine condensates and the use thereof as demulsifiers |
| CN102286147A (en) * | 2011-06-23 | 2011-12-21 | 大连广汇科技有限公司 | Synthesis method for novel nonionic surfactant diethylamine block polyether |
| CN102634003A (en) * | 2012-04-24 | 2012-08-15 | 盘锦道博尔石油新技术开发有限公司 | Crude oil pre-dewatering agent |
| CN103011337A (en) * | 2012-10-30 | 2013-04-03 | 中国石油化工股份有限公司 | Polymer flooding produced liquid polymer retaining comprehensive treatment agent and application method |
| CN103937537A (en) * | 2014-03-27 | 2014-07-23 | 胜利油田胜利化工有限责任公司 | Preparation formula of high-flashing-point water-soluble demulsifying agent |
| CN103952177A (en) * | 2014-03-27 | 2014-07-30 | 胜利油田胜利化工有限责任公司 | Water purification type demulsifier for tertiary oil recovery, and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 付亚荣: "赵州桥油田聚驱原油破乳剂的研究", 《油田化学》 * |
| 张佳华等: "聚醚破乳剂结构与压裂乳状液破乳效果的关系", 《石油学报（石油加工）》 * |
| 张宏伟等: "聚醚型重油破乳剂的制备及其应用研究", 《化学工程与装备》 * |
| 蔡奇峰等: "聚醚型原油破乳剂结构与破乳性能关系的研究", 《应用化工》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675620A (en) * | 2017-01-14 | 2017-05-17 | 北京化工大学 | Emulsion breaker for treating ageing oil and application thereof |
| CN106675620B (en) * | 2017-01-14 | 2018-03-09 | 北京化工大学 | A kind of demulsifier for handling ageing oil and its application |
| CN107573499A (en) * | 2017-09-15 | 2018-01-12 | 延安大学 | A kind of preparation method of crude oil demulsifier |
| CN109232876A (en) * | 2018-08-20 | 2019-01-18 | 浙江皇马新材料科技有限公司 | A kind of preparation method of ethylol amine polyethers |
| CN115433352A (en) * | 2022-09-20 | 2022-12-06 | 胜利油田胜利化工有限责任公司 | Modified polyamine demulsifier and preparation method and application thereof |
| CN115433352B (en) * | 2022-09-20 | 2023-06-23 | 胜利油田胜利化工有限责任公司 | Modified polyamine demulsifier and preparation method and application thereof |
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