CN102399576A - Novel crude oil demulsifier and preparation method thereof - Google Patents
Novel crude oil demulsifier and preparation method thereof Download PDFInfo
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- CN102399576A CN102399576A CN2010102743231A CN201010274323A CN102399576A CN 102399576 A CN102399576 A CN 102399576A CN 2010102743231 A CN2010102743231 A CN 2010102743231A CN 201010274323 A CN201010274323 A CN 201010274323A CN 102399576 A CN102399576 A CN 102399576A
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Abstract
The invention relates to a novel crude oil demulsifier and a preparation method thereof. The novel crude oil demulsifier is prepared from esterified butyl acrylate acrylic acid copolymer and polyether demulsifier. Calculated according to a total weight of the butyl acrylate acrylic acid copolymer and the polyether demulsifier as 100%, the novel crude oil demulsifier comprises components of, by weight: 10-95% of the butyl acrylate acrylic acid copolymer, 5-90% of the polyether demulsifier, 0.1-3% of an acidic catalyst, 0.1-0.2% of a polymerization inhibitor of hydroquinone, and a solvent which is a good solvent for the butyl acrylate acrylic acid copolymer and the polyether demulsifier. According to the novel crude oil demulsifier and the preparation method thereof, the butyl acrylate acrylic acid copolymer and the polyether demulsifier with demulsification functions are subject to an esterification reaction. The prepared demulsifier provides a good demulsification effect upon crude oil emulsion.
Description
Technical field
The present invention relates to crude oil demulsifier and preparation technology, is a kind of novel crude oil emulsion splitter and preparation method thereof specifically.
Background technology
The breaking emulsion and dewatering of crude oil emulsion is that oil production is failed one of important step in the process with collection.At present, the most frequently used crude oil demulsification method of petroleum industry is in crude oil, to add emulsion splitter.
The research of domestic emulsion splitter mainly is to be the polyether type demulsifying agent that monomeric block polymer is the main body with epoxy ethane-epoxy propane, and such emulsion splitter is only done some changes on catalyzer, initiator, chainextender in recent years, to increase relative molecular mass.
Yet the composition of emulsion of crude oil, structure are extremely complicated, and the location, oil field is different, or the different oil wells in same oil field; Even same oil well; In the early stage, the crude oil oil of mid-term and extraction in late period adopts the phase along with throwing and changes, emulsion of crude oil is also changing, thereby different to bearing of a certain emulsion splitter; Emulsion of crude oil to certain mouthful of oil well is effective, reserves and other oil well just differed.Use a kind of emulsion splitter separately, specificity is strong, and universality is poor.
It is to adopt compounded technology that way is broken off relations in common separating at present, and two or more polyether type demulsifying agents are together composite, makes it produce synergistic effect, improves demulsification.And the research of emulsion splitter that fundamentally changes polyethers emulsion splitter structure is rarely found.
The trend of the research and development of crude oil demulsifier from the home and abroad, non-polyethers emulsion splitter are development in nearly ten years one type of emulsion splitters faster.Some patents mention that the alkylacrylate polymkeric substance can be used for the breakdown of emulsion of emulsion of crude oil, and wherein, U.S. Pat 6080794, US5100582 and US5472617 etc. have introduction.Chinese patent CN101255354 exploitation is a monomer with vinylformic acid, propenoate; Adopt the various polymerization mode to synthesize and have the Bing Xisuandingzhi PEMULEN TR2 of demulsification performance preferably, particularly to the viscous crude creaming of emulsion, it is clear to present water colour; Consumption is few, the persistent characteristics of medicament dehydration property.
Emulsion splitter researchist both domestic and external always exploitation have suitability wide novel emulsion splitter; In the eighties in 20th century; The Petrolite company of the U.S. and Nalco Chemical company etc. begin to develop Demulsifiers Modified by Acrylic Acid and are widely used in geographic oil fields such as the U.S. and Canada, show fabulous demulsification.China starts from nineteen ninety-five to Study on Demulsifiers Modified by Acrylic Acid, and people such as the Xu Jiaye of Xi'an shiyou University have synthesized PR type Demulsifiers Modified by Acrylic Acid.With vinylformic acid and maleic anhydride esterification, Demulsifiers Modified by Acrylic Acid has been synthesized in esterification products polymerization under the initiator effect to people such as Chen Mei in 2002 and Yang Xiaolong with polyether type demulsifying agent.
Summary of the invention
To the defective that exists in the prior art; The object of the present invention is to provide a kind of novel crude oil emulsion splitter and preparation method thereof; Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent that employing will have demulsification performance carry out esterification, and the emulsion splitter that makes is good to the demulsification of emulsion of crude oil.
For reaching above purpose, the technical scheme that the present invention takes is:
A kind of novel crude oil emulsion splitter is characterized in that: adopt Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent esterification to form, its component comprises:
In Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent gross weight is 100%, and wherein Bing Xisuandingzhi PEMULEN TR2 weight percent is 10～95%, and the polyether type demulsifying agent weight percent is 5～90%,
An acidic catalyst, add-on are 0.1%～3% of Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent gross weight;
Stopper is Resorcinol, and add-on is 0.1%～2% of Bing Xisuandingzhi PEMULEN TR2 and a polyether type demulsifying agent gross weight;
Solvent is the good solvent of Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent.
A kind of preparation method of the novel crude oil emulsion splitter based on said components is characterized in that, comprises following concrete steps:
Step 1; Bing Xisuandingzhi PEMULEN TR2, polyether type demulsifying agent and solvent are added in the reactor drum; After treating that Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent are dissolved in solvent fully, add an acidic catalyst and stopper, be stirred well to dissolving fully;
Step 2 is installed water trap and reflux condensing tube on reactor drum, with air in the nitrogen replacement reactor drum and the continuous nitrogen that feeds; Heat temperature raising is that the water of solvent and generation progresses into water trap under 120～160 ℃ the condition in temperature of reaction; The water layer liquid level can not overflow in the reactor drum in the control water trap; After carrying out reaction in 2 hours, no longer include water and generate, the expression reaction finishes;
Step 3, cooling, discharging obtains the novel crude oil emulsion splitter.
On the basis of technique scheme, be 100% in Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent gross weight, wherein Bing Xisuandingzhi PEMULEN TR2 weight percent is 40～85%, the polyether type demulsifying agent weight percent is 15～60%.
On the basis of technique scheme, said Bing Xisuandingzhi PEMULEN TR2 is for adopting the Bing Xisuandingzhi PEMULEN TR2 of patent CN200710064118.0 method preparation, and said polyether type demulsifying agent is a polyoxyethylene polyoxypropylene ether.
On the basis of technique scheme, said an acidic catalyst is a kind of in sulfuric acid, phosphoric acid, tosic acid, alkyl benzene sulphonate(ABS), the strong-acid ion exchange resin.
Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent that novel crude oil emulsion splitter of the present invention and preparation method thereof, employing will have demulsification performance carry out esterification, and the emulsion splitter that makes is good to the demulsification of emulsion of crude oil.
Embodiment
Novel crude oil emulsion splitter of the present invention is that Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent (polyoxyethylene polyoxypropylene ether) carry out the emulsion splitter that esterification forms, and is the novel emulsion splitter with polyoxyethylene polyoxypropylene and butyl polyacrylate acrylic acid structure.
Novel crude oil emulsion splitter preparation method of the present invention is different from the preparation method of Demulsifiers Modified by Acrylic Acid; The present invention adopts the Bing Xisuandingzhi PEMULEN TR2 and the polyether type demulsifying agent (polyoxyethylene polyoxypropylene ether) that will have demulsification performance to carry out esterification, and the emulsion splitter that makes is good to the demulsification of emulsion of crude oil.
Novel crude oil emulsion splitter of the present invention can select for use the Bing Xisuandingzhi PEMULEN TR2 of different ratios and the polyether type demulsifying agent of different structure to make corresponding emulsion splitter according to different oil products, improves emulsion splitter broad-spectrum performance.
The present invention is a kind of novel crude oil emulsion splitter, it is characterized in that: adopt Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent esterification to form, its component comprises:
In Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent gross weight is 100%; Wherein Bing Xisuandingzhi PEMULEN TR2 weight percent is 10～95%; Preferred 40～85%, the polyether type demulsifying agent weight percent is 5～90%, preferred 15～60%;
Said Bing Xisuandingzhi PEMULEN TR2 is for adopting the Bing Xisuandingzhi PEMULEN TR2 of patent CN200710064118.0 method preparation, and said polyether type demulsifying agent is a polyoxyethylene polyoxypropylene ether;
An acidic catalyst, add-on are 0.1%～3% of Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent gross weight;
Stopper is Resorcinol, and add-on is 0.1%～2% of Bing Xisuandingzhi PEMULEN TR2 and a polyether type demulsifying agent gross weight;
Solvent is the good solvent of Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent.For example: YLENE, toluene all are good solvents of selectable Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent.
On the basis of technique scheme, said an acidic catalyst is a kind of in sulfuric acid, phosphoric acid, tosic acid, alkyl benzene sulphonate(ABS), the strong-acid ion exchange resin.
The Bing Xisuandingzhi PEMULEN TR2 that uses among the present invention adopts the solution polymerization mode, and polymerization method adopts patent CN200710064118.0 method.
The preparation method that patent CN200710064118.0 provides is following:
In reactor drum, add Bing Xisuandingzhi and solvent; With nitrogen replacement and keep nitrogen atmosphere, under 30～90 ℃, stir, add polymerization starter; The vinylformic acid of adding 20%～50% after stirring; Residual acrylic acid adds continuously or whenever added once at a distance from 0.5～3 hour in batches, all adds vinylformic acid continued reaction 2～6 hours, adds polymerization terminator then; Reacted again 0.5～1 hour, and obtained non-polyether type thick oil demulsifying agent (being Bing Xisuandingzhi PEMULEN TR2 of the present invention); Wherein, in Bing Xisuandingzhi and acrylic acid total mass, the add-on of Bing Xisuandingzhi is 70 quality %～99 quality %, and acrylic acid add-on is 1 quality %～30 quality %.
Further, in Bing Xisuandingzhi and acrylic acid total mass, the add-on of said polymerization starter is 0.1 quality %～2 quality %, and the add-on of said polymerization terminator is 0.1 quality %～2 quality %.
Further, said solvent is arene, alcohols, ketone or ester class organic solvent, and said polymerization starter is azo-initiator or organic peroxy class initiator, and said polymerization terminator is a Resorcinol.
Further, said polyreaction is carried out under 50～90 ℃.
Further, the monomeric indegree that adds of said residual acrylic acid is 2～6 times.
Further, the monomeric indegree that adds of said residual acrylic acid is divided into 3 times.
According to patent CN200710064118.0 record, adopt the non-polyether type thick oil demulsifying agent (being Bing Xisuandingzhi PEMULEN TR2 of the present invention) of method for preparing, process by Bing Xisuandingzhi and acrylic acid copolymer; Number-average molecular weight is 5; 000～200,000, molecular formula is following:
Wherein, R
3The expression butyl, a=70 quality %～99 quality %, b=1 quality %～30 quality %.
Further; Said non-polyether type thick oil demulsifying agent is processed by the solution copolymerization method; Wherein Butyl Acrylate Monomer is an one feeding, and Acrylic Acid Monomer adds 20%～50% of vinylformic acid total amount earlier, in polymerization process, adds the residual acrylic acid monomer continuously or in batches.
Further; Said non-polyether type thick oil demulsifying agent is processed by the solution copolymerization method; Wherein Butyl Acrylate Monomer is an one feeding, and Acrylic Acid Monomer adds 30%～40% of vinylformic acid total amount earlier, in polymerization process, adds the residual acrylic acid monomer continuously or in batches.
Below provide several embodiment that can be used for preparing the Bing Xisuandingzhi PEMULEN TR2 that uses among the present invention:
First embodiment
The four-hole boiling flask that whisking appliance, condensation reflux device are housed is placed in the water-bath, bath temperature is raised to 60 ℃, add 41.4 gram Bing Xisuandingzhis and 55 gram YLENE, stir, with nitrogen replacement and the continuous nitrogen that feeds.Add 0.25 gram Diisopropyl azodicarboxylate as initiator, stirring adds 1.1 gram vinylformic acid, begins dropwise addition of acrylic acid after spending 15 minutes, in 4 hours, drips 2.2 grams, dropwises continued reaction 4 hours.After this, add 0.3 gram Resorcinol as terminator, isothermal reaction is 0.5 hour again; Cooling obtains white solution, according to the mensuration of State Standard of the People's Republic of China GB/T 1668-95 softening agent acid number and acidity then; Use the determination of acid-basetitration carboxyl-content; Record and contain 7.40% acrylic acid units, number-average molecular weight is 6.8 ten thousand, and molecular weight distribution mw/mn is 2.68.
Second embodiment
The four-hole boiling flask that whisking appliance, condensation reflux device are housed is placed in the water-bath, bath temperature is raised to 60 ℃, add 41.4 gram Bing Xisuandingzhis and 55 gram YLENE, stir, with nitrogen replacement and the continuous nitrogen that feeds.Add 0.25 gram Diisopropyl azodicarboxylate as initiator, stirring added 1.1 gram vinylformic acid, whenever added 1.1 gram vinylformic acid at a distance from 1.5 hours, and vinylformic acid adds three times altogether, and total amount is 3.3 grams, continues reaction 4 hours down at 60 ℃.After this, add 0.3 gram Resorcinol as terminator, isothermal reaction is 0.5 hour again; Cooling obtains white solution, according to the mensuration of State Standard of the People's Republic of China GB/T 1668-95 softening agent acid number and acidity then; Use the determination of acid-basetitration carboxyl-content; Record and contain 7.38% acrylic acid units, number-average molecular weight is 6.9 ten thousand, and molecular weight distribution mw/mn is 2.86.
The 3rd embodiment
The preparation method is with embodiment 2, and different is, solvent is a butanone, and acrylic acid add-on in batches all is 4.8 grams, and acrylic acid total amount is 14.4 grams.Mensuration according to State Standard of the People's Republic of China GB/T 1668-95 softening agent acid number and acidity; Its product is used the determination of acid-basetitration carboxyl-content; Record and contain 25.85% acrylic acid units, number-average molecular weight is 7.2 ten thousand, and molecular weight distribution mw/mn is 2.95.
The preparation method of novel crude oil emulsion splitter according to the invention comprises following concrete steps:
Step 1; Bing Xisuandingzhi PEMULEN TR2, polyether type demulsifying agent and solvent are added in the reactor drum; After treating that Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent are dissolved in solvent fully, add an acidic catalyst and stopper, be stirred well to dissolving fully;
Step 2 is installed water trap and reflux condensing tube on reactor drum, with air in the nitrogen replacement reactor drum and the continuous nitrogen that feeds; Heat temperature raising is that the water of solvent and generation progresses into water trap under 120～160 ℃ the condition in temperature of reaction; The water layer liquid level can not overflow in the reactor drum in the control water trap; After carrying out reaction in 2 hours, no longer include water and generate, the expression reaction finishes;
Step 3, cooling, discharging obtains the novel crude oil emulsion splitter.
The proportioning of each component as previously mentioned.
Below be specific embodiment of the present invention:
Embodiment 1
Operation steps:
Step (1) Bing Xisuandingzhi PEMULEN TR2 prepares according to above-mentioned second embodiment
Step (2) polyether type demulsifying agent is selected de-emulsifier SP 169 for use, and de-emulsifier SP 169 another names are: polyoxyethylene polyoxypropylene stearyl alcohol ether, consult " Chinese tensio-active agent overview " book of Huang Hongzhou chief editor, and the 468th page, Chemical Industry Press publishes.
Step (3) preparation novel crude oil emulsion splitter
The 50 gram Bing Xisuandingzhi acrylic acid copolymer solns and the 6 gram de-emulsifier SPs 169 of step (1) preparation are done in the agent adding reactor drum; Add solvent xylene 60 grams; After treating that Bing Xisuandingzhi PEMULEN TR2 and de-emulsifier SP 169 dried agent are dissolved in solvent fully; Add an acidic catalyst tosic acid 0.5 gram, hydroquinone of polymerization retarder 0.2 gram is stirred well to dissolving fully.Water trap and reflux condensing tube are installed, with air in the nitrogen replacement reactor drum and continuous nitrogen, the heat temperature raising of feeding on reactor drum; Be under 120～160 ℃ the condition in temperature of reaction; The water of solvent and generation progresses into water trap, and the water layer liquid level can not overflow in the reactor drum in the control water trap, after carrying out reacting in 2 hours; No longer include water and generate, the expression reaction finishes.Cooling, discharging obtains the novel crude oil emulsion splitter.
Embodiment 2
The 50 gram Bing Xisuandingzhi acrylic acid copolymer solns and the 10 gram polyether type demulsifying agent SP169 of embodiment 1 step (1) preparation are done in the agent adding reactor drum; Add solvent xylene 60 grams; After treating that Bing Xisuandingzhi PEMULEN TR2 and de-emulsifier SP 169 dried agent are dissolved in solvent fully; Add an acidic catalyst tosic acid 0.5 gram, hydroquinone of polymerization retarder 0.2 gram is stirred well to dissolving fully.Water trap and reflux condensing tube are installed, with air in the nitrogen replacement reactor drum and continuous nitrogen, the heat temperature raising of feeding on reactor drum; Be under 120～160 ℃ the condition in temperature of reaction; The water of solvent and generation progresses into water trap, and the water layer liquid level can not overflow in the reactor drum in the control water trap, after carrying out reacting in 2 hours; No longer include water and generate, the expression reaction finishes.Cooling, discharging obtains the novel crude oil emulsion splitter.
Embodiment 3
The 50 gram Bing Xisuandingzhi acrylic acid copolymer solns and the 20 gram polyether type demulsifying agent SP169 of embodiment 1 step (1) preparation are done in the agent adding reactor drum; Add solvent xylene 60 grams; After treating that Bing Xisuandingzhi PEMULEN TR2 and de-emulsifier SP 169 dried agent are dissolved in solvent fully; Add an acidic catalyst tosic acid 1.0 grams, hydroquinone of polymerization retarder 0.2 gram is stirred well to dissolving fully.Water trap and reflux condensing tube are installed, with air in the nitrogen replacement reactor drum and continuous nitrogen, the heat temperature raising of feeding on reactor drum; Be under 120～160 ℃ the condition in temperature of reaction; The water of solvent and generation progresses into water trap, and the water layer liquid level can not overflow in the reactor drum in the control water trap, after carrying out reacting in 2 hours; No longer include water and generate, the expression reaction finishes.Cooling, discharging obtains the novel crude oil emulsion splitter.
Embodiment 4: present embodiment is the application implementation example.
The lonely three emulsion of crude oil dehydration experiments of table 1 Gudao oilfield
Embodiment 5
Step (1) Bing Xisuandingzhi PEMULEN TR2 prepares according to patent CN200710064118.0
41.4 gram Bing Xisuandingzhis and 55 gram toluene are added in the reactor drum, and temperature is raised to 60 ℃, stirs; Also feed nitrogen continuously with nitrogen replacement, add 0.25 gram initiator Diisopropyl azodicarboxylate, adding 2.2 gram vinylformic acid stir; Whenever added 2.2 gram vinylformic acid at a distance from 1.5 hours; Vinylformic acid adds three times altogether, and total amount is 6.6 grams, continues reaction 4 hours down at 60 ℃.After this, add 0.3 gram Resorcinol as terminator, isothermal reaction is 0.5 hour again, and cooling obtains white solution then.
Step (2) emulsion splitter AP134: another name polyoxyethylene polyoxypropylene polyethylene polyamine ether, consult " Chinese tensio-active agent overview " book of Huang Hongzhou chief editor, the 471st page, Chemical Industry Press publishes.
Step (3) prepares novel emulsion splitter
The 50 gram Bing Xisuandingzhi acrylic acid copolymer solns and the 10 gram polyether type demulsifying agent AP134 of embodiment 5 steps (1) preparation are done in the agent adding reactor drum; Add solvent toluene 60 grams; After treating that the dried agent of Bing Xisuandingzhi PEMULEN TR2 and emulsion splitter AP134 is dissolved in solvent fully; Add an acidic catalyst tosic acid 0.5 gram, hydroquinone of polymerization retarder 0.2 gram is stirred well to dissolving fully.Water trap and reflux condensing tube are installed, with air in the nitrogen replacement reactor drum and continuous nitrogen, the heat temperature raising of feeding on reactor drum; Be under 120～160 ℃ the condition in temperature of reaction; The water of solvent and generation progresses into water trap, and the water layer liquid level can not overflow in the reactor drum in the control water trap, after carrying out reacting in 2 hours; No longer include water and generate, the expression reaction finishes.Cooling, discharging obtains the novel crude oil emulsion splitter.
Embodiment 6: present embodiment is the application implementation example.
Table 2 Dagang Oilfield horse west emulsion of crude oil dehydration experiment
Utilizing emulsion splitter of the present invention that lonely three crude oil of Gudao oilfield are carried out breaking emulsion and dewatering with Dagang Oilfield horse west emulsion of crude oil tests: when 60 ℃ of breakdown of emulsion temperature; Add-on is 100ppm; The sedimentation water rate reached more than 90% in 6 hours, and the breaking emulsion and dewatering effect is higher than independent use Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent breaking emulsion and dewatering effect.
Claims (8)
1. novel crude oil emulsion splitter is characterized in that: adopt Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent esterification to form, its component comprises:
In Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent gross weight is 100%, and wherein Bing Xisuandingzhi PEMULEN TR2 weight percent is 10～95%, and the polyether type demulsifying agent weight percent is 5～90%,
An acidic catalyst, add-on are 0.1%～3% of Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent gross weight;
Stopper is Resorcinol, and add-on is 0.1%～2% of Bing Xisuandingzhi PEMULEN TR2 and a polyether type demulsifying agent gross weight;
Solvent is the good solvent of Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent.
2. novel crude oil emulsion splitter as claimed in claim 1; It is characterized in that: in Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent gross weight is 100%; Wherein Bing Xisuandingzhi PEMULEN TR2 weight percent is 40～85%, and the polyether type demulsifying agent weight percent is 15～60%.
3. according to claim 1 or claim 2 novel crude oil emulsion splitter; It is characterized in that: said Bing Xisuandingzhi PEMULEN TR2 is for adopting the Bing Xisuandingzhi PEMULEN TR2 of patent CN200710064118.0 method preparation, and said polyether type demulsifying agent is a polyoxyethylene polyoxypropylene ether.
4. according to claim 1 or claim 2 novel crude oil emulsion splitter is characterized in that: said an acidic catalyst is a kind of in sulfuric acid, phosphoric acid, tosic acid, alkyl benzene sulphonate(ABS), the strong-acid ion exchange resin.
5. the preparation method based on the described novel crude oil emulsion splitter of claim 1 is characterized in that, comprises following concrete steps:
Step 1; Bing Xisuandingzhi PEMULEN TR2, polyether type demulsifying agent and solvent are added in the reactor drum; After treating that Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent are dissolved in solvent fully, add an acidic catalyst and stopper, be stirred well to dissolving fully;
Step 2 is installed water trap and reflux condensing tube on reactor drum, with air in the nitrogen replacement reactor drum and the continuous nitrogen that feeds; Heat temperature raising is that the water of solvent and generation progresses into water trap under 120～160 ℃ the condition in temperature of reaction; The water layer liquid level can not overflow in the reactor drum in the control water trap; After carrying out reaction in 2 hours, no longer include water and generate, the expression reaction finishes;
Step 3, cooling, discharging obtains the novel crude oil emulsion splitter.
6. the preparation method of novel crude oil emulsion splitter as claimed in claim 5; It is characterized in that: in Bing Xisuandingzhi PEMULEN TR2 and polyether type demulsifying agent gross weight is 100%; Wherein Bing Xisuandingzhi PEMULEN TR2 weight percent is 40～85%, and the polyether type demulsifying agent weight percent is 15～60%.
7. like the preparation method of claim 5 or 6 described novel crude oil emulsion splitters; It is characterized in that: said Bing Xisuandingzhi PEMULEN TR2 is for adopting the Bing Xisuandingzhi PEMULEN TR2 of patent CN200710064118.0 method preparation, and said polyether type demulsifying agent is a polyoxyethylene polyoxypropylene ether.
8. like the preparation method of claim 5 or 6 described novel crude oil emulsion splitters, it is characterized in that: said an acidic catalyst is a kind of in sulfuric acid, phosphoric acid, tosic acid, alkyl benzene sulphonate(ABS), the strong-acid ion exchange resin.
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| CN104448118A (en) * | 2014-11-27 | 2015-03-25 | 新疆德蓝股份有限公司 | Novel low-temperature crude oil demulsifying agent and preparation method thereof |
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| CN114426655A (en) * | 2020-10-10 | 2022-05-03 | 中国石油化工股份有限公司 | Novel lignin-based oil-in-water emulsion demulsifier, preparation method thereof and treatment method of crude oil-in-water emulsion |
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| CN110387035A (en) * | 2018-04-20 | 2019-10-29 | 中国石油化工股份有限公司 | Demulsifier and preparation method thereof and the application in asphaltenes thick oil emulsion breaking |
| CN110387035B (en) * | 2018-04-20 | 2022-01-04 | 中国石油化工股份有限公司 | Demulsifier, preparation method thereof and application thereof in demulsification of thick oil containing asphaltene |
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| CN114426655B (en) * | 2020-10-10 | 2023-11-14 | 中国石油化工股份有限公司 | Lignin-based water-in-oil emulsion demulsifier, preparation method thereof and treatment method of crude oil water-in-oil emulsion |
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