CN110331000A - A kind of low temperature crude oil demulsifier and preparation method thereof - Google Patents
A kind of low temperature crude oil demulsifier and preparation method thereof Download PDFInfo
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- CN110331000A CN110331000A CN201910604935.3A CN201910604935A CN110331000A CN 110331000 A CN110331000 A CN 110331000A CN 201910604935 A CN201910604935 A CN 201910604935A CN 110331000 A CN110331000 A CN 110331000A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/04—Dewatering or demulsification of hydrocarbon oils with chemical means
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Abstract
The present invention relates to a kind of low temperature crude oil demulsifiers and preparation method thereof, it is made of the material of following parts by weight: 17-30 parts of Hexafluorobutyl mathacrylate, 45-50 parts of solvent, 3-7 parts of ethylenediamine, 1-2 parts of lauryl sodium sulfate, 4-9 parts of sodium hydrogensulfite and 5-7 parts of fluorocarbon surfactant FC-3, the invention discloses a kind of low temperature crude oil demulsifiers and preparation method thereof, simple process, operating condition is mild, production cost is low, applicability is extensive, there is good demulsification performance to crude oil emulsion, and save the time, man power and material, it can be widely applied to oil extraction, the fields such as petroleum refining.
Description
Technical field
The present invention relates to a kind of low temperature crude oil demulsifiers and preparation method thereof, belong to demulsifier preparation field.
Background technique
Crude oil is in recovery process, contact due to crude oil with water, due to containing natural emulsifier in crude oil, natural
Under the action of emulsifier, crude oil and water form stable mixture, in addition during crude oil is exploited, can be added big
The chemical reagent of amount extracts crude oil, so that crude oil be made largely to emulsify, the crude oil after emulsification can not be used directly, because
This, needs to be demulsified to crude oil, and separates crude oil and water in crude oil, the demulsifier produced on existing market at present
Have the following disadvantages: bad adaptability, dosage is bigger, high production cost, ineffective, therefore, the demulsifier of production
It is not able to satisfy the demand of existing market.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provides a kind of low temperature crude oil demulsifier and preparation method thereof,
To solve problems of the prior art.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of low temperature crude oil demulsifier, it is made of the material of following parts by weight: 17-30 parts of Hexafluorobutyl mathacrylate,
45-50 parts of solvent, 3-7 parts of ethylenediamine, 1-2 parts of lauryl sodium sulfate, 4-9 parts of sodium hydrogensulfite and fluorocarbon surfactant
5-7 parts of FC-3.
As an improvement of the present invention, the solvent is the mixture of methanol, acetone, isopropanol and water.
As an improvement of the present invention, the mass ratio of the methanol, acetone, isopropanol and water is 2:7:5:5.
As an improvement of the present invention, fluorocarbon surfactant FC-3 is pre-processed, steps are as follows:
(1) after mixing by fluorocarbon surfactant FC-3, methanol, it is added to the water after being crushed to 150-300 mesh, in 22-29
Ultrasound 2-3h at DEG C, centrifuge separation, takes mixture；
(2) after being mixed organic siliconresin, seaweed glue, it is heated to 40-50 DEG C under normal pressure and is stirred 22-28 minutes
Afterwards, after being warming up to 70-90 DEG C and stirring 10-15 minutes, polyether silicon is added, and continues stirring 20-40 minutes；
(3) mixture that step (1) generates is added into step (2), and mixture is stirred 30-35 at 50-60 DEG C
Minute；
(4) mixture after step (3) reaction is put into drying unit, and dries mixture at 75-80 DEG C
After 25-30 minutes, mixture is cooled to 20-30 DEG C；
(5) mixture that step (4) generate is put into and is ground into grinding device, be crushed to 150-200 mesh, obtain pre- place
Fluorocarbon surfactant FC-3 after reason.
As an improvement of the present invention, the mixing speed of the step (2) is 500-800r/min.
As an improvement of the present invention, in the step (1) fluorocarbon surfactant FC-3, methanol, water mass ratio
2:7:1。
As an improvement of the present invention, in the step (2) organic siliconresin, seaweed glue, polyether silicon quality
Than for 1:1:5.
As an improvement of the present invention, the preparation method of the low temperature crude oil demulsifier, steps are as follows:
1) Hexafluorobutyl mathacrylate, solvent, ethylenediamine, lauryl sodium sulfate, sulfurous are weighed respectively according to parts by weight
Sour hydrogen sodium and fluorocarbon surfactant FC-3；
2) fluorocarbon surfactant FC-3, Hexafluorobutyl mathacrylate, 1/3 solvent is added into reaction kettle under stiring, and
It is stirred at 20-30 DEG C 1-5 hours；
3) ethylenediamine, lauryl sodium sulfate are added into step 2, and after being stirred 30-50 minutes at 30-40 DEG C, and
Centrifugal filtration after mixture is flowed back；
4) sodium hydrogensulfite and 2/3 solvent are stirred 1-2 hours at 20-30 DEG C, are added by step 3) reaction
Centrifugation object afterwards, and be stirred at 50-60 DEG C 2-4 hours；Be warming up to 100-110 DEG C, after step 3) reaction is added from
Heart liquid is passed through nitrogen, and after mixture is stirred 1-2 hours, low temperature crude oil demulsifier can be obtained.
Due to using the above technology, the present invention compared with the prior art, is had the advantage that as follows:
The invention discloses a kind of low temperature crude oil demulsifier and preparation method thereof, simple process, operating condition are mild, are produced into
This is low, and applicability is extensive, has good demulsification performance to crude oil emulsion, and save time, man power and material, can be extensive
Applied to fields such as oil extraction, petroleum refinings.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated.
Embodiment 1:
A kind of low temperature crude oil demulsifier, it is made of the material of following parts by weight: 17 parts of Hexafluorobutyl mathacrylate, solvent
50 parts, 3 parts of ethylenediamine, 2 parts of lauryl sodium sulfate, 4 parts of sodium hydrogensulfite and 7 parts of fluorocarbon surfactant FC-3.
The solvent is the mixture of methanol, acetone, isopropanol and water.
The methanol, acetone, isopropanol and water mass ratio be 2:7:5:5.
Fluorocarbon surfactant FC-3 is pre-processed, steps are as follows:
(1) after mixing by fluorocarbon surfactant FC-3, methanol, it is added to the water after being crushed to 150 mesh, it is ultrasonic at 29 DEG C
2h, centrifuge separation, takes mixture；
(2) after organic siliconresin, seaweed glue being mixed, be heated under normal pressure 50 DEG C be stirred 22 minutes after, heating
It to 90 DEG C and stirs after ten minutes, polyether silicon is added, and continue stirring 40 minutes；
(3) mixture that step (1) generates is added into step (2), and mixture is stirred 35 minutes at 50 DEG C；
(4) mixture after step (3) reaction is put into drying unit, and mixture is made to carry out 30 points of drying at 75 DEG C
Mixture is cooled to 20 DEG C by Zhong Hou；
(5) mixture that step (4) generate is put into and is ground into grinding device, 200 mesh are crushed to, after obtaining pretreatment
Fluorocarbon surfactant FC-3.
The mixing speed of the step (2) is 500r/min.
The mass ratio 2:7:1 of fluorocarbon surfactant FC-3, methanol, water in the step (1).
Organic siliconresin in the step (2), seaweed glue, polyether silicon mass ratio be 1:1:5.
The preparation method of the low temperature crude oil demulsifier, steps are as follows:
1) Hexafluorobutyl mathacrylate, solvent, ethylenediamine, lauryl sodium sulfate, sulfurous are weighed respectively according to parts by weight
Sour hydrogen sodium and fluorocarbon surfactant FC-3；
2) fluorocarbon surfactant FC-3, Hexafluorobutyl mathacrylate, 1/3 solvent is added into reaction kettle under stiring, and
It is stirred at 30 DEG C 1 hour；
3) ethylenediamine, lauryl sodium sulfate are added into step 2, and after being stirred 30 minutes at 40 DEG C, and will mixing
Centrifugal filtration after object is flowed back；
4) sodium hydrogensulfite and 2/3 solvent are stirred 1 hour at 30 DEG C, be added by step 3) reaction after from
Heart object, and be stirred at 60 DEG C 2 hours；110 DEG C are warming up to, the centrifugate after step 3) reaction is added is passed through nitrogen, and
After mixture is stirred 1 hour, low temperature crude oil demulsifier can be obtained.
Embodiment 2:
A kind of low temperature crude oil demulsifier, it is made of the material of following parts by weight: 30 parts of Hexafluorobutyl mathacrylate, solvent
45 parts, 7 parts of ethylenediamine, 1 part of lauryl sodium sulfate, 9 parts of sodium hydrogensulfite and 5 parts of fluorocarbon surfactant FC-3.
The solvent is the mixture of methanol, acetone, isopropanol and water.
The methanol, acetone, isopropanol and water mass ratio be 2:7:5:5.
Fluorocarbon surfactant FC-3 is pre-processed, steps are as follows:
(1) after mixing by fluorocarbon surfactant FC-3, methanol, it is added to the water after being crushed to 150-300 mesh, at 29 DEG C
Ultrasonic 2h, centrifuge separation, takes mixture；
(2) after organic siliconresin, seaweed glue being mixed, be heated under normal pressure 50 DEG C be stirred 22 minutes after, heating
It to 90 DEG C and stirs after ten minutes, polyether silicon is added, and continue stirring 40 minutes；
(3) mixture that step (1) generates is added into step (2), and mixture is stirred 35 minutes at 50 DEG C；
(4) mixture after step (3) reaction is put into drying unit, and mixture is made to carry out 30 points of drying at 75 DEG C
Mixture is cooled to 20 DEG C by Zhong Hou；
(5) mixture that step (4) generate is put into and is ground into grinding device, 200 mesh are crushed to, after obtaining pretreatment
Fluorocarbon surfactant FC-3.
The mixing speed of the step (2) is 500r/min.
The mass ratio 2:7:1 of fluorocarbon surfactant FC-3, methanol, water in the step (1).
Organic siliconresin in the step (2), seaweed glue, polyether silicon mass ratio be 1:1:5.
The preparation method of the low temperature crude oil demulsifier, steps are as follows:
1) Hexafluorobutyl mathacrylate, solvent, ethylenediamine, lauryl sodium sulfate, sulfurous are weighed respectively according to parts by weight
Sour hydrogen sodium and fluorocarbon surfactant FC-3；
2) fluorocarbon surfactant FC-3, Hexafluorobutyl mathacrylate, 1/3 solvent is added into reaction kettle under stiring, and
It is stirred at 30 DEG C 1 hour；
3) ethylenediamine, lauryl sodium sulfate are added into step 2, and after being stirred 30 minutes at 40 DEG C, and will mixing
Centrifugal filtration after object is flowed back；
4) sodium hydrogensulfite and 2/3 solvent are stirred 1 hour at 30 DEG C, be added by step 3) reaction after from
Heart object, and be stirred at 60 DEG C 2 hours；It is warming up to 100-110 DEG C, the centrifugate after step 3) reaction is added is passed through nitrogen
Gas, and after mixture is stirred 2 hours, low temperature crude oil demulsifier can be obtained.
Embodiment 3:
A kind of low temperature crude oil demulsifier, it is made of the material of following parts by weight: 25 parts of Hexafluorobutyl mathacrylate, molten
47 parts of agent, 6 parts of ethylenediamine, 1 part of lauryl sodium sulfate, 8 parts of sodium hydrogensulfite and 6 parts of fluorocarbon surfactant FC-3.
The solvent is the mixture of methanol, acetone, isopropanol and water.
The methanol, acetone, isopropanol and water mass ratio be 2:7:5:5.
Fluorocarbon surfactant FC-3 is pre-processed, steps are as follows:
(1) after mixing by fluorocarbon surfactant FC-3, methanol, it is added to the water after being crushed to 150 mesh, it is ultrasonic at 28 DEG C
3h, centrifuge separation, takes mixture；
(2) after organic siliconresin, seaweed glue being mixed, be heated under normal pressure 42 DEG C be stirred 22 minutes after, heating
To 80 DEG C and after stirring 13 minutes, polyether silicon is added, and continues stirring 25 minutes；
(3) mixture that step (1) generates is added into step (2), and mixture is stirred 32 minutes at 55 DEG C；
(4) mixture after step (3) reaction is put into drying unit, and mixture is made to carry out 30 points of drying at 79 DEG C
Mixture is cooled to 20 DEG C by Zhong Hou；
(5) mixture that step (4) generate is put into and is ground into grinding device, 150 mesh are crushed to, after obtaining pretreatment
Fluorocarbon surfactant FC-3.
The mixing speed of the step (2) is 700r/min.
The mass ratio 2:7:1 of fluorocarbon surfactant FC-3, methanol, water in the step (1).
Organic siliconresin in the step (2), seaweed glue, polyether silicon mass ratio be 1:1:5.
The preparation method of the low temperature crude oil demulsifier, steps are as follows:
1) Hexafluorobutyl mathacrylate, solvent, ethylenediamine, lauryl sodium sulfate, sulfurous are weighed respectively according to parts by weight
Sour hydrogen sodium and fluorocarbon surfactant FC-3；
2) fluorocarbon surfactant FC-3, Hexafluorobutyl mathacrylate, 1/3 solvent is added into reaction kettle under stiring, and
It is stirred at 28 DEG C 1 hour；
3) ethylenediamine, lauryl sodium sulfate are added into step 2, and after being stirred 30 minutes at 38 DEG C, and will mixing
Centrifugal filtration after object is flowed back；
4) sodium hydrogensulfite and 2/3 solvent are stirred 1 hour at 20 DEG C, be added by step 3) reaction after from
Heart object, and be stirred at 60 DEG C 2 hours；100 DEG C are warming up to, the centrifugate after step 3) reaction is added is passed through nitrogen, and
After mixture is stirred 1 hour, low temperature crude oil demulsifier can be obtained.
In the use of the present invention, product of the present invention 30-110mg/L can be added directly into crude oil, it is uniformly mixed, in 25-
At 80 DEG C, its effect can be played, when use can also first be diluted to 6-23% aqueous solution, add in crude oil and use.
Above-described embodiment is only the preferred technical solution of the present invention, and is not construed as limitation of the invention, the present invention
Protection scope should with claim record technical solution, including claim record technical solution in technical characteristic etc.
It is protection scope with alternative, i.e., equivalent replacement within this range is improved, also within protection scope of the present invention.
Claims (8)
1. a kind of low temperature crude oil demulsifier, which is characterized in that it is made of the material of following parts by weight: methacrylic acid hexafluoro
17-30 parts of butyl ester, 45-50 parts of solvent, 3-7 parts of ethylenediamine, 1-2 parts of lauryl sodium sulfate, 4-9 parts of sodium hydrogensulfite and fluorine
5-7 parts of carbon surface active agent FC-3.
2. a kind of low temperature crude oil demulsifier according to claim 1, it is characterised in that: the solvent is methanol, acetone, different
The mixture of propyl alcohol and water.
3. a kind of low temperature crude oil demulsifier according to claim 2, it is characterised in that: the methanol, acetone, isopropanol with
And the mass ratio of water is 2:7:5:5.
4. a kind of low temperature crude oil demulsifier according to claim 1, which is characterized in that fluorocarbon surfactant FC-3
It is pre-processed, steps are as follows:
(1) after mixing by fluorocarbon surfactant FC-3, methanol, it is added to the water after being crushed to 150-300 mesh, in 22-29
Ultrasound 2-3h at DEG C, centrifuge separation, takes mixture；
(2) after being mixed organic siliconresin, seaweed glue, it is heated to 40-50 DEG C under normal pressure and is stirred 22-28 minutes
Afterwards, after being warming up to 70-90 DEG C and stirring 10-15 minutes, polyether silicon is added, and continues stirring 20-40 minutes；
(3) mixture that step (1) generates is added into step (2), and mixture is stirred 30-35 at 50-60 DEG C
Minute；
(4) mixture after step (3) reaction is put into drying unit, and dries mixture at 75-80 DEG C
After 25-30 minutes, mixture is cooled to 20-30 DEG C；
(5) mixture that step (4) generate is put into and is ground into grinding device, be crushed to 150-200 mesh, obtain pre- place
Fluorocarbon surfactant FC-3 after reason.
5. a kind of low temperature crude oil demulsifier according to claim 4, it is characterised in that: the mixing speed of the step (2)
For 500-800r/min.
6. a kind of low temperature crude oil demulsifier according to claim 4, it is characterised in that: fluorocarbon surface in the step (1)
Activating agent FC-3, methanol, water mass ratio 2:7:1.
7. a kind of low temperature crude oil demulsifier according to claim 6, it is characterised in that: organosilicon tree in the step (2)
Rouge, seaweed glue, polyether silicon mass ratio be 1:1:5.
8. a kind of low temperature crude oil demulsifier according to claim 1, which is characterized in that the system of the low temperature crude oil demulsifier
Preparation Method, steps are as follows:
1) Hexafluorobutyl mathacrylate, solvent, ethylenediamine, lauryl sodium sulfate, sulfurous are weighed respectively according to parts by weight
Sour hydrogen sodium and fluorocarbon surfactant FC-3；
2) fluorocarbon surfactant FC-3, Hexafluorobutyl mathacrylate, 1/3 solvent is added into reaction kettle under stiring, and
It is stirred at 20-30 DEG C 1-5 hours；
3) ethylenediamine, lauryl sodium sulfate are added into step 2, and after being stirred 30-50 minutes at 30-40 DEG C, and
Centrifugal filtration after mixture is flowed back；
4) sodium hydrogensulfite and 2/3 solvent are stirred 1-2 hours at 20-30 DEG C, are added by step 3) reaction
Centrifugation object afterwards, and be stirred at 50-60 DEG C 2-4 hours；Be warming up to 100-110 DEG C, after step 3) reaction is added from
Heart liquid is passed through nitrogen, and after mixture is stirred 1-2 hours, low temperature crude oil demulsifier can be obtained.
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Citations (6)
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| SU937506A1 (en) * | 1980-09-01 | 1982-06-23 | Всесоюзный Научно-Исследовательский И Проектный Институт Нефтепромысловой Химии Научно-Производственного Объединения "Союзнефтепромхим" | Method for dehydrating petroleum |
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| CN109679681A (en) * | 2017-10-18 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of low temperature crude oil demulsifier |
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| SU937506A1 (en) * | 1980-09-01 | 1982-06-23 | Всесоюзный Научно-Исследовательский И Проектный Институт Нефтепромысловой Химии Научно-Производственного Объединения "Союзнефтепромхим" | Method for dehydrating petroleum |
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