CN104096384A - Antifoaming agent and preparation method thereof - Google Patents
Antifoaming agent and preparation method thereof Download PDFInfo
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- CN104096384A CN104096384A CN201410198373.4A CN201410198373A CN104096384A CN 104096384 A CN104096384 A CN 104096384A CN 201410198373 A CN201410198373 A CN 201410198373A CN 104096384 A CN104096384 A CN 104096384A
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- defoamer
- polyoxyethylene polyoxypropylene
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Abstract
The invention discloses a defoaming agent and a preparation method thereof. The defoaming agent comprises the following components by weight: 30-50 parts of polyether, 20-30 parts of polyol, 5-10 parts of methylene diphenyl diisocyanate, 5-8 parts of calcium carbonate, 3-7 parts of poly methyl phenyl siloxane and 1-2 parts of ferric chloride. The prepared defoaming agent is high in safety, can has good defoaming effect in the case of a less addition amount, and can be applied to defoaming of the oil field.
Description
Technical field
The invention belongs to Petroleum Refining Additives field, particularly a kind of defoamer and preparation method thereof.
Background technology
Oil mainly, by the compositions of mixtures of various aliphatic hydrocarbons, aromatic hydrocarbon and cycloalkane, belongs to fossil fuel, can be used as fuel oil and gasoline, is non-renewable energy resources.
Along with oil is exploited, the oil pressure in oil field constantly reduces, and need to improve by setting-out or gas in oil well the yield of oil.Therefore along with the prolongation of recovery time, the composition that draws up water in next liquid in exploitation is increasing, simultaneously owing to containing various surface reactive materials in crude oil, as aphthenic acids, aliphatic acid, colloid, asphalitine etc., they can be adsorbed on oil-water interfaces or gas-liquid interface, liquid pearl and bubble are had to stabilization, produced thus the problems such as original emulsification and foaming, cause oil therefrom to separate.
Existing defoamer has many types, the most frequently used amide-type, silicone based, high-carbon fatty alcohol class and polyethers etc. of mainly containing.In process due to oil extraction, have hot environment, but a lot of defoamer often at high temperature can not be brought into play froth breaking effect well, need to increase addition, therefore needs a kind of auxiliary agent just can under low concentration with good defoaming effect.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of defoamer and preparation method thereof, the defoamer that the present invention makes is safe, can in the situation that addition is few, have good froth breaking and press down bubble effect.
Object of the present invention can be achieved through the following technical solutions:
A kind of defoamer, made by the component that comprises following weight portion:
Polyethers 30-50 part,
Polyalcohols 20-30 part,
Methyl diphenylene diisocyanate 5-10 part,
Calcium carbonate 5-8 part,
PSI 3-7 part,
Iron chloride 1-2 part.
Described component also comprises 0-2 part Graphene.
Described polyethers is selected from one or more in polyoxyethylene polyoxypropylene propylene glycol, polyoxyethylene polyoxypropylene glycerin ether, polyoxyethylene polyoxypropylene pentaerythrite ether, octadecanol polyoxyethylene polyoxypropylene block type ether and NPE.
Described polyalcohols is one or both the mixing in polyethylene glycol and polyvinyl alcohol.
The relative molecular weight of described polyethylene glycol is 4000-6000.
A preparation method for defoamer, the method comprises the following steps:
(1), by polyethers 30-50 part, polyalcohols 20-30 part, methyl diphenylene diisocyanate 5-10 part, PSI 3-7 part, under 65-90, add and in high pressure homogenizer, mix 1-2 hour;
(2) by adding calcium carbonate 5-8 part, iron chloride 1-2 part and 0-2 part Graphene vortex blender to stir in the product of step (1), obtain defoamer.
The first paragraph homogenization pressure of described high pressure homogenizer is 17-20MPa, and second segment homogenization pressure is 3-4MPa.
beneficial effect:
(1) the present invention has added polyethers, polyalcohols, and add methyl diphenylene diisocyanate, the hydroxyl that can make in system that adds of methyl diphenylene diisocyanate carries out mutual cross-linking reaction, thereby the crosslinking points between each component in system is increased, and the stability of whole system has also improved the antifoam performance of product when increasing.
(2) the present invention has added calcium carbonate to improve the permeability of oil-bearing layer rock, makes product of the present invention in having good antifoam performance, can increase the extract content of crude oil.
(3) defoamer of the present invention is safe, has good froth breaking and presses down bubble effect, all has and well presses down bubble effect for various mink cell focuses, light oil, still has good dispersiveness and defoaming in the situation that addition is few.
(4) iron chloride add the catharsis that plays water-oil separating, improved extract content.
Detailed description of the invention
The method of testing of antifoam performance: first crude oil is packed in circulation bubbling instrument, then open temperature detect switch (TDS), by heating crude oil, ON cycle pump, treat that foam rises to 300ml place, add respectively the defoamer in the embodiment 1-3 of equal quality, record the foam volume V variation of t in time.It is longer that foam reaches time at 300ml place again, proves that defoaming effect is better.
The method of testing of comparative example: first crude oil is packed in circulation bubbling instrument, then open temperature detect switch (TDS), by heating crude oil, ON cycle pump, treat that foam rises to 300ml place, add the defoamer in quality and the embodiment 1-3 of polyoxyethylene polyoxypropylene propylene glycol identical in quality, record the foam volume V variation of t in time.It is longer that foam reaches time at 300ml place again, proves that defoaming effect is better.
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
(1) be 4000 polyethylene glycol 20kg, methyl diphenylene diisocyanate 10 kg, PSI 7 kg by polyoxyethylene polyoxypropylene propylene glycol 30kg, relative molecular weight, at 90 DEG C, add in high pressure homogenizer and mix 1.5 hours;
(2) by adding calcium carbonate 5kg, iron chloride 1kg and 1kg Graphene vortex blender to stir in the product of step (1), obtain defoamer.
The first paragraph homogenization pressure of described high pressure homogenizer is 17MPa, and second segment homogenization pressure is 3.5MPa.
The defoaming test result of defoamer is as shown in table 1.
Embodiment 2
(1), by NPE 50kg, polyethylene glycol and polyvinyl alcohol 30 kg, methyl diphenylene diisocyanate 10 kg, PSI 3kg, at 70 DEG C, add in high pressure homogenizer and mix 1 hour;
(2) by adding calcium carbonate 8 kg, iron chloride 2 kg and 2 kg Graphene vortex blender to stir in the product of step (1), obtain defoamer.
The first paragraph homogenization pressure of described high pressure homogenizer is 18MPa, and second segment homogenization pressure is 4MPa.
The defoaming test result of defoamer is as shown in table 1.
Embodiment 3
(1) be 6000 polyethylene glycol 25kg, methyl diphenylene diisocyanate 5kg, PSI 4kg by polyoxyethylene polyoxypropylene pentaerythrite ether 40kg, relative molecular weight, at 65 DEG C, add in high pressure homogenizer and mix 2 hours;
(2) by adding calcium carbonate 5kg and iron chloride 2 kg vortex blender to stir in the product of step (1), obtain defoamer.
The first paragraph homogenization pressure of described high pressure homogenizer is 20MPa, and second segment homogenization pressure is 3MPa.
The defoaming test result of defoamer is as shown in table 1.
Table 1
The invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from improvement and the amendment that category of the present invention makes all should be within protection scope of the present invention.
Claims (7)
1. a defoamer, is characterized in that, is made up of the component that comprises following weight portion:
Polyethers 30-50 part,
Polyalcohols 20-30 part,
Methyl diphenylene diisocyanate 5-10 part,
Calcium carbonate 5-8 part,
PSI 3-7 part,
Iron chloride 1-2 part.
2. defoamer according to claim 1, is characterized in that, described component also comprises 0-2 part Graphene.
3. defoamer according to claim 1, it is characterized in that, described polyethers is selected from one or more in polyoxyethylene polyoxypropylene propylene glycol, polyoxyethylene polyoxypropylene glycerin ether, polyoxyethylene polyoxypropylene pentaerythrite ether, octadecanol polyoxyethylene polyoxypropylene block type ether and NPE.
4. defoamer according to claim 1, is characterized in that, described polyalcohols is one or both the mixing in polyethylene glycol and polyvinyl alcohol.
5. defoamer according to claim 4, is characterized in that, the relative molecular weight of described polyethylene glycol is 4000-6000.
6. a preparation method for defoamer, is characterized in that, the method comprises the following steps:
(1), by polyethers 30-50 part, polyalcohols 20-30 part, methyl diphenylene diisocyanate 5-10 part, PSI 3-7 part, at 65-90 DEG C, add and in high pressure homogenizer, mix 1-2 hour;
(2) by adding calcium carbonate 5-8 part, iron chloride 1-2 part and 0-2 part Graphene vortex blender to stir in the product of step (1), obtain defoamer.
7. the preparation method of defoamer according to claim 6, is characterized in that, the first paragraph homogenization pressure of described high pressure homogenizer is 17-20MPa, and second segment homogenization pressure is 3-4MPa.
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CN201410198373.4A CN104096384A (en) | 2014-05-12 | 2014-05-12 | Antifoaming agent and preparation method thereof |
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CN201410198373.4A CN104096384A (en) | 2014-05-12 | 2014-05-12 | Antifoaming agent and preparation method thereof |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106880963A (en) * | 2017-02-23 | 2017-06-23 | 西安工业大学 | A kind of oil field gas transmission line solid defoaming agent and preparation method thereof |
CN108778443A (en) * | 2016-03-01 | 2018-11-09 | 瓦克化学股份公司 | defoaming agent composition for detergent |
CN110215743A (en) * | 2019-06-24 | 2019-09-10 | 中国石油化工股份有限公司 | For Aromatics Extractive Project without silicon defoaming agent and preparation method thereof |
CN110643340A (en) * | 2019-10-14 | 2020-01-03 | 中国石油化工股份有限公司 | High-efficiency water-soluble viscosity-reduction oil washing agent for heavy oil thermal recovery and preparation method thereof |
CN110875221A (en) * | 2018-08-31 | 2020-03-10 | 日化精工株式会社 | Preparation for slicing and processing liquid |
CN110875221B (en) * | 2018-08-31 | 2024-04-26 | 日化精工株式会社 | Preparation for slicing and processing liquid |
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US5725815A (en) * | 1993-03-15 | 1998-03-10 | Henkel Kommanditgesellschaft Auf Aktien | Foam control agents for the food, paint and paper industries |
JPH11197408A (en) * | 1998-01-20 | 1999-07-27 | Shin Etsu Chem Co Ltd | Anti-foaming agent composition for high temperature organic solvent and anti-foaming method using same |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108778443A (en) * | 2016-03-01 | 2018-11-09 | 瓦克化学股份公司 | defoaming agent composition for detergent |
CN108778443B (en) * | 2016-03-01 | 2021-10-29 | 瓦克化学股份公司 | Antifoam compositions for detergents |
CN106880963A (en) * | 2017-02-23 | 2017-06-23 | 西安工业大学 | A kind of oil field gas transmission line solid defoaming agent and preparation method thereof |
CN106880963B (en) * | 2017-02-23 | 2018-10-30 | 西安工业大学 | A kind of oil field gas transmission line solid defoaming agent and preparation method thereof |
CN110875221A (en) * | 2018-08-31 | 2020-03-10 | 日化精工株式会社 | Preparation for slicing and processing liquid |
CN110875221B (en) * | 2018-08-31 | 2024-04-26 | 日化精工株式会社 | Preparation for slicing and processing liquid |
CN110215743A (en) * | 2019-06-24 | 2019-09-10 | 中国石油化工股份有限公司 | For Aromatics Extractive Project without silicon defoaming agent and preparation method thereof |
CN110643340A (en) * | 2019-10-14 | 2020-01-03 | 中国石油化工股份有限公司 | High-efficiency water-soluble viscosity-reduction oil washing agent for heavy oil thermal recovery and preparation method thereof |
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Application publication date: 20141015 |