CN102234526A - Dendritic reverse demulsifier - Google Patents
Dendritic reverse demulsifier Download PDFInfo
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- CN102234526A CN102234526A CN2010101666948A CN201010166694A CN102234526A CN 102234526 A CN102234526 A CN 102234526A CN 2010101666948 A CN2010101666948 A CN 2010101666948A CN 201010166694 A CN201010166694 A CN 201010166694A CN 102234526 A CN102234526 A CN 102234526A
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- epoxy chloropropane
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Abstract
The invention relates to a dendritic reverse demulsifier used for crude oil demulsification. The dendritic reverse demulsifier consists of the following components in percentage by weight: 0.1-10% of 1.0-3.0 generation of dendritic polyamide-amine, 10-45% of epoxy chloropropane and 5-22% of dimethylamine, and thus forming different concentrations of aqueous solutions containing 10-40% of the above compounds. The dendritic reverse demulsifier provided by the invention can quickly destroy the oil-water emulsion interface, improve demulsification efficiency and improve the quality of treated water.
Description
Technical field
The present invention is a kind of dendroid reverse-phase emulsifier of crude oil demulsification.Relate to the petroleum industry technical field.
Background technology
Along with the use of the fast development in oil field and a large amount of electric submersible pump, the oil field is adopted liquid measure and is increased the raising of water content.Because the speed that electric submersible pump is high is sheared, the emulsification of crude oil in water is serious, has increased the turbidity of dehydrating of crude oil, to the demands for higher performance of reverse-phase emulsifier.Reverse-phase emulsifier commonly used has bodied ferric sulfate, polymerize aluminum chloride, polyacrylamide, ammonia-epoxy chloropropane polycondensate and ammonia-dimethylamine-epichlorohydrin polymer etc., and the follow-up people of having is used for crude oil demulsification with the polyamide-amide branch-shape polymer.Effect and the effect of dissimilar reverse-phase emulsifiers in oilfield sewage rp demulsification process has notable difference, and generally showing as inorganic polymer, to have a de-emulsification speed fast, but add-on is big, and it is little to have add-on for linear organic polymer, but the treatment time is long.The colinearity polymkeric substance improves breakdown of emulsion efficient to than, the emulsification interface of the easier destruction profit of branch-shape polymer.
Summary of the invention
The objective of the invention is to invent a kind of rapid damage oil-water emulsion interface, improve breakdown of emulsion efficient, improve the dendroid reverse-phase emulsifier of handling back water quality.
The present invention is made up of dendroid polyamide-amide (PAMAM), epoxy chloropropane, the dimethylamine in 1.0 generations to 3.0 generations; Its proportioning is: in gross weight is in 100, and the dendroid polyamide-amide (PAMAM) in 1.0 generations to 3.0 generations accounts for 0.1%-10%, and epoxy chloropropane accounts for 10-45%, dimethylamine accounts for 5%-22%, forms to contain the above-mentioned synthetics solution in different concentration of 10%-40%.
The present invention at first synthesizes the dendroid polyamide-amide (PAMAM) in 1.0 generations to 3.0 generations;
1.0 generations, 2.0 generations and the 3.0 generation PAMAM that get different ratios are lower than 40 ℃ in temperature and added an amount of epichlorohydrin reaction 2 hours-4 hours down, add a certain amount of dimethylamine, drip the epoxy chloropropane that accounts for total add-on 90% to miscible fluid, temperature is increased to 85 ℃-95 ℃, reacts 1 hour; Described 1.0 generations, 2.0 generations and 3.0 generation PAMAM ratio in polymkeric substance can be single component, two-pack and three components; For two-pack, the ratio of two components is 1: 4,2: 3, and 1: 1; For three components, each ratio can be 1: 1: 1, and 1: 2: 2,1: 2: 3,1: 2: 4 etc.;
Branch will remain 10% epoxy chloropropane adding several times again, and in each 20 minutes timed intervals that add, temperature keeps 85 ℃-95 ℃, to reacting completely.
The present invention is the reverse-phase emulsifier that is used for the field produces sewage disposal, this reverse-phase emulsifier is compared with existing reverse-phase emulsifier, have following difference: this reverse-phase emulsifier is that the dendroid polyamide-amide with 1.0 generations to 3.0 generations is the nuclear of branch, and then add epoxy chloropropane and dimethylamine reacts, branch is gone up be dimethylamine-epichlorohydrin polymer.Breakdown of emulsion efficient is improved at emulsification interface that can the rapid damage profit, improves the water quality after handling.
Embodiment
Embodiment. this example is made up of dendroid polyamide-amide (PAMAM), epoxy chloropropane, dimethylamine, the epoxy chloropropane in 1.0 generations to 3.0 generations; Its proportioning is: in gross weight is in 100, and the dendroid polyamide-amide (PAMAM) in 1.0 generations to 3.0 generations accounts for 8%, and epoxy chloropropane accounts for 35%, dimethylamine accounts for 15%, forms the aqueous solution that contains 58% above-mentioned synthetics.
This example is at first synthesized the dendroid polyamide-amide (PAMAM) in 1.0 generations to 3.0 generations;
Reaction comprises two processes: the one, and quadrol and methyl acrylate carry out the Michael addition reaction, the polynary ester that reaction obtains, carry out amidate action again with quadrol and obtain acid amides, thereby obtain the macromole branch-shape polymer: polyamide-amide by hocket Michael addition and amidate action; The dendroid polyamide-amide in synthetic 1.0 generations, 2.0 generations and 3.0 generations needs earlier synthetic 0.5 generation;
0.5 synthetic for PAMAM: having agitator, thermometer adds the 4g quadrol in the four-hole boiling flask of prolong, 30ml methyl alcohol, controlled temperature is at 25 ℃, turn on agitator, slowly add the 50g methyl acrylate, be controlled in two hours and add about 20 hours of continuation reaction; After reaction was finished, it was 25 ℃ that temperature is set in vacuum drying oven, and vacuum tightness vacuumizes for the 1mmHg post, and unnecessary reactant and solvent are drained, and obtains the PAMAM that flaxen product was for 0.5 generation at last;
1.0 synthetic for PAMAM: add 60g quadrol and methyl alcohol in four-hole boiling flask, the methanol solution of synthetic 0.5 generation PAMAM maintains the temperature at 25 ℃ above slowly dripping, and reacts 40 hours; After reaction finished, it was 70 ℃ that temperature is set in vacuum drying oven, and vacuum tightness vapors away unnecessary quadrol and methyl alcohol for the 2mmHg post vacuumizes, and obtains flaxen product and is 1.0 generation PAMAM;
Hocket Michael addition and amidate action can obtain for 1.5 generations, 2.0 generations, 2.5 generations, 3.0 generation PAMAM;
1.0 generations, 2.0 generations and the 3.0 generation PAMAM that get different ratios are lower than 40 ℃ of epichlorohydrin reactions that add 20g down 2 hours in temperature, the dimethylamine that adds 80g, drip 150g epoxy chloropropane (90% of total add-on to miscible fluid, add continuously, the speed that adds is controlled according to heat of reaction, guarantee that temperature of reaction is lower than 40 ℃), temperature is increased to 85 ℃, reacts 1 hour; Divide the epoxy chloropropane that falls residue 10% for three times again, in each 20 minutes timed intervals that add, temperature keeps 85 ℃, to reacting completely.
This dendroid reverse-phase emulsifier is the sewage test of 3300NUT for the Sudan's 1/2/4 oil field turbidity, and adding dosage is 10ppm, the sewage turbidity can be reduced to less than 50NUT.
Application conditions: the sewage disposal that oil field CPF and FPF treatment station are deviate from.
The form of product: the product water soluble can be made into the product that concentration is 10%-40%.
Breakdown of emulsion efficient is improved at emulsification interface that can the rapid damage profit, improves the water quality after handling.
Claims (1)
1. the dendroid reverse-phase emulsifier of a crude oil demulsification is characterized in that being made up of dendroid polyamide-amide, epoxy chloropropane, the dimethylamine in 1.0 generations to 3.0 generations; Its proportioning is: in gross weight is in 100, and the dendroid polyamide-amide in 1.0 generations to 3.0 generations accounts for 0.1%-10%, and epoxy chloropropane accounts for 10-45%, dimethylamine accounts for 5%-22%, forms to contain the above-mentioned synthetics solution in different concentration of 10%-40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010101666948A CN102234526A (en) | 2010-04-30 | 2010-04-30 | Dendritic reverse demulsifier |
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| CN2010101666948A CN102234526A (en) | 2010-04-30 | 2010-04-30 | Dendritic reverse demulsifier |
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| CN102234526A true CN102234526A (en) | 2011-11-09 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233249A (en) * | 2010-04-30 | 2011-11-09 | 中国石油天然气集团公司 | Dendritic reverse demulsifier and preparation method thereof |
| CN102559246A (en) * | 2012-02-16 | 2012-07-11 | 中国海洋石油总公司 | Reverse demulsifier and its preparation method |
| CN102559245A (en) * | 2012-02-16 | 2012-07-11 | 中国海洋石油总公司 | Reverse demulsifier and preparation method thereof |
| CN105315446A (en) * | 2014-06-06 | 2016-02-10 | 中国石油化工股份有限公司 | Polyether de-emulsifier and W/O-type crude oil emulsion demulsification dehydration method using the same |
| CN106367103A (en) * | 2016-10-23 | 2017-02-01 | 中海油天津化工研究设计院有限公司 | Preparation method of non-polyether heavy oil demulsifier |
| CN108192096A (en) * | 2017-12-15 | 2018-06-22 | 中国海洋石油集团有限公司 | A kind of preparation method of modified dendritic interphase reverse-phase emulsifier |
| CN109233897A (en) * | 2018-10-08 | 2019-01-18 | 天津正达科技有限责任公司 | A kind of preparation method for oil-in-water emulsion crude oil reverse-phase emulsifier |
| CN114768309A (en) * | 2022-05-12 | 2022-07-22 | 广东粤首新科技有限公司 | Reverse demulsifier and preparation method thereof |
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| US4568737A (en) * | 1983-01-07 | 1986-02-04 | The Dow Chemical Company | Dense star polymers and dendrimers |
| CN1583811A (en) * | 2004-06-16 | 2005-02-23 | 湖北省化学研究院 | Preparation for water soluble high-molecular weight cationic polymer |
| CN101357992A (en) * | 2008-06-20 | 2009-02-04 | 中国海洋石油总公司 | Method for preparing stellate poly quaternary ammonium salt high efficient reverse-phase emulsifier |
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- 2010-04-30 CN CN2010101666948A patent/CN102234526A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4568737A (en) * | 1983-01-07 | 1986-02-04 | The Dow Chemical Company | Dense star polymers and dendrimers |
| CN1583811A (en) * | 2004-06-16 | 2005-02-23 | 湖北省化学研究院 | Preparation for water soluble high-molecular weight cationic polymer |
| CN101357992A (en) * | 2008-06-20 | 2009-02-04 | 中国海洋石油总公司 | Method for preparing stellate poly quaternary ammonium salt high efficient reverse-phase emulsifier |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233249A (en) * | 2010-04-30 | 2011-11-09 | 中国石油天然气集团公司 | Dendritic reverse demulsifier and preparation method thereof |
| CN102559246A (en) * | 2012-02-16 | 2012-07-11 | 中国海洋石油总公司 | Reverse demulsifier and its preparation method |
| CN102559245A (en) * | 2012-02-16 | 2012-07-11 | 中国海洋石油总公司 | Reverse demulsifier and preparation method thereof |
| CN105315446A (en) * | 2014-06-06 | 2016-02-10 | 中国石油化工股份有限公司 | Polyether de-emulsifier and W/O-type crude oil emulsion demulsification dehydration method using the same |
| CN105315446B (en) * | 2014-06-06 | 2017-06-30 | 中国石油化工股份有限公司 | The breaking dehydrating method of polyether demulsification agent and w/o type crude oil emulsion |
| CN106367103A (en) * | 2016-10-23 | 2017-02-01 | 中海油天津化工研究设计院有限公司 | Preparation method of non-polyether heavy oil demulsifier |
| CN106367103B (en) * | 2016-10-23 | 2017-11-28 | 中海油天津化工研究设计院有限公司 | A kind of preparation method of non-polyether type thick oil demulsifying agent |
| CN108192096A (en) * | 2017-12-15 | 2018-06-22 | 中国海洋石油集团有限公司 | A kind of preparation method of modified dendritic interphase reverse-phase emulsifier |
| CN108192096B (en) * | 2017-12-15 | 2020-09-29 | 中国海洋石油集团有限公司 | Preparation method of modified dendritic polyamide-amine reverse demulsifier |
| CN109233897A (en) * | 2018-10-08 | 2019-01-18 | 天津正达科技有限责任公司 | A kind of preparation method for oil-in-water emulsion crude oil reverse-phase emulsifier |
| CN114768309A (en) * | 2022-05-12 | 2022-07-22 | 广东粤首新科技有限公司 | Reverse demulsifier and preparation method thereof |
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