CN104479732A - Crude oil demulsifier - Google Patents
Crude oil demulsifier Download PDFInfo
- Publication number
- CN104479732A CN104479732A CN201410649369.5A CN201410649369A CN104479732A CN 104479732 A CN104479732 A CN 104479732A CN 201410649369 A CN201410649369 A CN 201410649369A CN 104479732 A CN104479732 A CN 104479732A
- Authority
- CN
- China
- Prior art keywords
- crude oil
- agent
- oil demulsifier
- polyoxyethylene ether
- demulsifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000010779 crude oil Substances 0.000 title claims abstract description 34
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 36
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 22
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 11
- 239000000080 wetting agent Substances 0.000 claims abstract description 11
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims abstract description 10
- -1 polyoxy silane-polyoxyethylene Polymers 0.000 claims description 29
- 229920001451 polypropylene glycol Polymers 0.000 claims description 18
- 150000002170 ethers Chemical class 0.000 claims description 17
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 10
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 10
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 10
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000839 emulsion Substances 0.000 abstract description 7
- 239000003995 emulsifying agent Substances 0.000 abstract description 4
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract 5
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract 5
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 abstract 1
- 239000004721 Polyphenylene oxide Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 229920000570 polyether Polymers 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- ZQTYRTSKQFQYPQ-UHFFFAOYSA-N trisiloxane Chemical class [SiH3]O[SiH2]O[SiH3] ZQTYRTSKQFQYPQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- LBPACUJFGRCWDF-UHFFFAOYSA-L Cl[Mg]Cl.[Na] Chemical compound Cl[Mg]Cl.[Na] LBPACUJFGRCWDF-UHFFFAOYSA-L 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000002569 water oil cream Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a crude oil demulsifier which is characterized by comprising the following components by weight, 30-40% of a polyoxyethylene ether dry agent, 5-15% of a wetting agent, 5-10% of lauryl sodium sulfate, 4-10% of ammonium chloride, 6-12% of polyether modified trisiloxane and 20-30% of methanol. The polyoxyethylene ether dry agent is polysiloxane-polyoxyethylene polyoxypropylene dodecanol ether and propanediol poly-oxypropylene polyoxyethylene ether. The polyoxyethylene ether crude oil demulsifier has good surface properties, permeability and excellent wettability, can be quickly dispersed in crude oil to replace and neutralize an emulsifier originally on oil-water interface to form an unstable adsorption film for change of wettability of particles, so that water molecules connected by a surface active agent can rapidly agglomerate, the polyoxyethylene ether crude oil demulsifier has has good demulsification performance on crude oil emulsion, and can save time, manpower and material resources.
Description
Technical field
The present invention relates to a kind of crude oil demulsifier, belong to oilfield chemical auxiliary technical field.
Background technology
Along with the development of World Oil Industry, oil extraction increases day by day, and crude oil emulsion liquid measure is increased day by day, and after particularly adopting water filling intensified oil reduction, water content in crude oil obviously increases, and most of crude oil is exploited out with water-oil emulsion form.Containing a large amount of water and minerals in crude oil Produced Liquid, bring great difficulty to oil-gas gathering and transportation and crude refining, therefore must carry out dewatering, desalination.For solving produced problem in oil-gas gathering and transportation process, a large amount of chemical agents must be used, chemical used in oil-gas gathering and transportation process is called oil-gas gathering and transportation chemical, and it is one of important oil field chemical, and it mainly contains emulsion splitter, inhibiter, flow improver, emulsifying agent etc.Chemical agent that emulsification crude oil demulsification dewaters can be made crude oil demulsifier, oil-in-water emulsify crude oil demulsifier has low molecular weight demulsifier and high molecular weight demulsifier, low molecular weight demulsifier mainly contains soap, alkyl sulfuric ester salt, alkylbenzene sulfonate, OP type tensio-active agent etc., high molecular weight demulsifier mainly contains polyoxyethylene polyoxypropylene alkyl ethoxylated, polyoxyethylene polyoxypropylene phenol-amine resin etc.Oil-in-water type emulsion crude oil demulsifier mainly contains hydrochloric acid, sodium-chlor, magnesium chloride, calcium chloride, methyl alcohol etc.Existing emulsion splitter on the market exist low to crude oil bad adaptability, breakdown of emulsion efficiency, easily cause the problems such as corrosion.
Summary of the invention
In order to solve the problem, the invention provides and a kind of there is superpower surfactivity, wettability, flocculation and agglutinating power, can disperse rapidly in crude oil, replace, neutralization is originally at the emulsifying agent of water-oil interface.The technical scheme that the present invention can realize is as described below:
A kind of crude oil demulsifier, is characterized in that, comprise following component, its weight percent is that polyethenoxy ether class does agent 30 ~ 40%, wetting agent 5 ~ 15%, sodium lauryl sulphate 5 ~ 10%, ammonium chloride 4 ~ 10%, polyether-modified trisiloxanes 6 ~ 12%, methyl alcohol 20 ~ 30%.
Described a kind of crude oil demulsifier, is characterized in that, comprises following component, its weight percent is that polyethenoxy ether class does agent 30 ~ 35%, wetting agent 8 ~ 10%, sodium lauryl sulphate 5 ~ 8%, ammonium chloride 8 ~ 10%, polyether-modified trisiloxanes 10 ~ 12%, methyl alcohol 20 ~ 30%.
Described a kind of crude oil demulsifier, is characterized in that, comprises following component, and its weight percent is that polyethenoxy ether class does agent 35%, wetting agent 10%, sodium lauryl sulphate 8%, ammonium chloride 10%, polyether-modified trisiloxanes 12%, methyl alcohol 25%.
It is polyoxy silane-polyoxyethylene polyoxypropylene lauryl alcohol ether and propanediol polyoxypropylene Soxylat A 25-7 that described polyethenoxy ether class does agent.Described polyoxy silane-polyoxyethylene polyoxypropylene lauryl alcohol ether and propanediol polyoxypropylene Soxylat A 25-7 weight percent are 45 ~ 80%:20 ~ 55%.
The beneficial effect that the present invention compared with prior art has is: polyethenoxy ether class crude oil demulsifier provided by the invention has possessed good surface property and penetrating power and excellent wettability, can disperse rapidly in crude oil, replace, neutralization is originally at the emulsifying agent of water-oil interface, form unstable adsorption film and change the wettability of particulate matter, make the water molecule energy that coupled together by tensio-active agent coalescent fast, to crude oil emulsion, there is good demulsification performance, and save time, man power and material, Oil extraction can be widely used in, the fields such as refining of petroleum.
Embodiment
Following Application Example is described further it.
Embodiment 1:
A kind of crude oil demulsifier, it is characterized in that, comprise following component, its weight percent is that polyethenoxy ether class does agent 40%, wetting agent 15%, sodium lauryl sulphate 5%, ammonium chloride 8%, polyether-modified trisiloxanes 12%, methyl alcohol 20%.It is polyoxy silane-polyoxyethylene polyoxypropylene lauryl alcohol ether and propanediol polyoxypropylene Soxylat A 25-7 that described polyethenoxy ether class does agent, and its weight percent is 45%:55%.
Embodiment 2:
A kind of crude oil demulsifier, it is characterized in that, comprise following component, its weight percent is that polyethenoxy ether class does agent 35%, wetting agent 15%, sodium lauryl sulphate 10%, ammonium chloride 7%, polyether-modified trisiloxanes 8%, methyl alcohol 25%.It is polyoxy silane-polyoxyethylene polyoxypropylene lauryl alcohol ether and propanediol polyoxypropylene Soxylat A 25-7 that described polyethenoxy ether class does agent, and its weight percent is 55%:45%.
Embodiment 3:
A kind of crude oil demulsifier, it is characterized in that, comprise following component, its weight percent is that polyethenoxy ether class does agent 35%, wetting agent 15%, sodium lauryl sulphate 10%, ammonium chloride 7%, polyether-modified trisiloxanes 8%, methyl alcohol 25%.It is polyoxy silane-polyoxyethylene polyoxypropylene lauryl alcohol ether and propanediol polyoxypropylene Soxylat A 25-7 that described polyethenoxy ether class does agent, and its weight percent is 60%:40%.
Embodiment 4:
A kind of crude oil demulsifier, it is characterized in that, comprise following component, its weight percent is that polyethenoxy ether class does agent 30%, wetting agent 10%, sodium lauryl sulphate 9%, ammonium chloride 9%, polyether-modified trisiloxanes 12%, methyl alcohol 30%.It is polyoxy silane-polyoxyethylene polyoxypropylene lauryl alcohol ether and propanediol polyoxypropylene Soxylat A 25-7 that described polyethenoxy ether class does agent.Described polyoxy silane-polyoxyethylene polyoxypropylene lauryl alcohol ether and propanediol polyoxypropylene Soxylat A 25-7 weight percent are 70%:30%.
The present invention in use, directly to adding product 40 ~ 200mg/L of the present invention in crude oil, can mix, and at 50 ~ 90 DEG C, can play its effect.
The scope of protection of the invention is not limited to the proportioning described by embodiment, and it is all protection scope of the present invention that the arbitrary combination in the claims in the present invention protection domain or equivalence are replaced.
Claims (5)
1. a crude oil demulsifier, is characterized in that, comprises following component, its weight percent is that polyethenoxy ether class does agent 30 ~ 40%, wetting agent 5 ~ 15%, sodium lauryl sulphate 5 ~ 10%, ammonium chloride 4 ~ 10%, polyether-modified trisiloxanes 6 ~ 12%, methyl alcohol 20 ~ 30%.
2. a kind of crude oil demulsifier according to claim 1, it is characterized in that, comprise following component, its weight percent is that polyethenoxy ether class does agent 30 ~ 35%, wetting agent 8 ~ 10%, sodium lauryl sulphate 5 ~ 8%, ammonium chloride 8 ~ 10%, polyether-modified trisiloxanes 10 ~ 12%, methyl alcohol 20 ~ 30%.
3. a kind of crude oil demulsifier according to claim 1, is characterized in that, comprise following component, its weight percent is that polyethenoxy ether class does agent 35%, wetting agent 10%, sodium lauryl sulphate 8%, ammonium chloride 10%, polyether-modified trisiloxanes 12%, methyl alcohol 25%.
4. a kind of crude oil demulsifier according to claim 1,2 or 3, is characterized in that, it is polyoxy silane-polyoxyethylene polyoxypropylene lauryl alcohol ether and propanediol polyoxypropylene Soxylat A 25-7 that described polyethenoxy ether class does agent.
5. a kind of crude oil demulsifier according to claim 1,2 or 3, is characterized in that, described polyoxy silane-polyoxyethylene polyoxypropylene lauryl alcohol ether and propanediol polyoxypropylene Soxylat A 25-7 weight percent are 45% ~ 80%:20% ~ 55%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649369.5A CN104479732A (en) | 2014-11-14 | 2014-11-14 | Crude oil demulsifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649369.5A CN104479732A (en) | 2014-11-14 | 2014-11-14 | Crude oil demulsifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104479732A true CN104479732A (en) | 2015-04-01 |
Family
ID=52754345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410649369.5A Pending CN104479732A (en) | 2014-11-14 | 2014-11-14 | Crude oil demulsifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104479732A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105820833A (en) * | 2016-03-30 | 2016-08-03 | 中国海洋石油总公司 | Combined crude oil demulsifying agent and preparation method thereof |
| CN106244192A (en) * | 2015-06-13 | 2016-12-21 | 中国石油化工股份有限公司 | A kind of sump oil creaming of emulsion processes technique |
| CN106701154A (en) * | 2016-12-12 | 2017-05-24 | 钦州学院 | Crude oil demulsifier and preparation method thereof |
| CN107267197A (en) * | 2017-08-24 | 2017-10-20 | 马鞍山中粮生物化学有限公司 | A kind of oil high-efficient demulsifier and preparation method thereof |
| CN109575984A (en) * | 2017-09-28 | 2019-04-05 | 中国石油化工股份有限公司 | A kind of normal low temperature crude oil demulsifier |
| CN116240057A (en) * | 2022-12-13 | 2023-06-09 | 成都钠镁化学有限公司 | Natural gas compressor lubricating oil emulsion demulsifier and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2179993C2 (en) * | 2000-05-10 | 2002-02-27 | Арасланов Ильдус Миннирахманович | Method of preparing demulsifier |
| CN101328429A (en) * | 2008-07-24 | 2008-12-24 | 中国石油天然气股份有限公司 | Demulsifier for dehydrating heavy viscous oil with high sulfur content |
| CN102226098A (en) * | 2011-05-06 | 2011-10-26 | 河北科技大学 | Composite crude oil demulsifying agent |
-
2014
- 2014-11-14 CN CN201410649369.5A patent/CN104479732A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2179993C2 (en) * | 2000-05-10 | 2002-02-27 | Арасланов Ильдус Миннирахманович | Method of preparing demulsifier |
| CN101328429A (en) * | 2008-07-24 | 2008-12-24 | 中国石油天然气股份有限公司 | Demulsifier for dehydrating heavy viscous oil with high sulfur content |
| CN102226098A (en) * | 2011-05-06 | 2011-10-26 | 河北科技大学 | Composite crude oil demulsifying agent |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244192A (en) * | 2015-06-13 | 2016-12-21 | 中国石油化工股份有限公司 | A kind of sump oil creaming of emulsion processes technique |
| CN106244192B (en) * | 2015-06-13 | 2018-03-20 | 中国石油化工股份有限公司 | A kind of demulsification handling process of sump oil emulsion |
| CN105820833A (en) * | 2016-03-30 | 2016-08-03 | 中国海洋石油总公司 | Combined crude oil demulsifying agent and preparation method thereof |
| CN105820833B (en) * | 2016-03-30 | 2017-08-25 | 中国海洋石油总公司 | A kind of combined crude oil demulsifier and preparation method thereof |
| CN106701154A (en) * | 2016-12-12 | 2017-05-24 | 钦州学院 | Crude oil demulsifier and preparation method thereof |
| CN107267197A (en) * | 2017-08-24 | 2017-10-20 | 马鞍山中粮生物化学有限公司 | A kind of oil high-efficient demulsifier and preparation method thereof |
| CN109575984A (en) * | 2017-09-28 | 2019-04-05 | 中国石油化工股份有限公司 | A kind of normal low temperature crude oil demulsifier |
| CN116240057A (en) * | 2022-12-13 | 2023-06-09 | 成都钠镁化学有限公司 | Natural gas compressor lubricating oil emulsion demulsifier and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |
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