CN103555361A - Water-based flash-point-free viscosity reducing demulsifier with ultralow freezing point and preparation method thereof - Google Patents
Water-based flash-point-free viscosity reducing demulsifier with ultralow freezing point and preparation method thereof Download PDFInfo
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- CN103555361A CN103555361A CN201310536008.5A CN201310536008A CN103555361A CN 103555361 A CN103555361 A CN 103555361A CN 201310536008 A CN201310536008 A CN 201310536008A CN 103555361 A CN103555361 A CN 103555361A
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Abstract
The invention discloses a water-based flash-point-free viscosity reducing demulsifier with an ultralow freezing point and a preparation method thereof. The demulsifier is prepared by mixing a surfactant, alcohol polyether, a pour point depressant and deionized water, wherein the surfactant is an alkylphenol and ethylene oxide condensate, alcohol polyether is lauryl alcohol polyether-9 or cetostearyl alcohol polyether, and the pour point depressant is ethylene glycol or ethanol. The demulsifier is flash-point-free, has good safety and simple preparation process, is low in preparation cost, is environment-friendly and safe, meets the environmental ROHS (Restriction of Hazardous Substances Directive) standard, does not affect human bodies and has good application prospects.
Description
Technical field
The present invention relates to petrochemical technology field, particularly relate to a kind of super subzero aq. type and fall thick emulsion splitter and preparation method thereof without flash-point.
Background technology
Crude oil itself is a kind of multicomponent mixture, the hydrocarbon of different relative molecular masses, different structure and a small amount of non-hydrocarbon compound matter, consists of.In crude oil system because containing a large amount of colloids and pitch, thereby poor fluidity, viscosity is very large, brings series of problems to Oil extraction, Pipeline transport, processing and utilization etc.Generally, under reservoir temperature, the crude oil that the viscosity of gas-free oil surpasses 100mpa.s is viscous crude.In the oilfield exploitation middle and later periods, raise because of water ratio, crude oil is flowing to ground and is further collecting and transport to the flow process of joint station together with water from shaft bottom, stirring action during through valve, oil nozzle, pipeline, valve, pump, make it be mixed into milk sap, the crude oil emulsion forming can increase the flow quantity gathering, and has increased mechanical wear and the energy expenditure of course of conveying.Therefore, crude oil is carried out to viscosity reduction, demulsification technology, improved the condition of crude oil collection and conveying, reduce energy consumption, increase work efficiency and economic benefit.
Emulsion splitter is the oil field chemical of consumption maximum in petroleum industry.Adopt traditional emulsion splitter to carry out heavy oil dehydration, dehydration temperaturre is high, need to be by heating crude oil to comparatively high temps, and in traditional emulsion splitter, contain aromatic hydrocarbons, as benzene, toluene and dimethylbenzene etc., this type of raw material has flash-point, and flash-point is lower, in high speed operation process, there is the danger of catching fire, security is low.
Summary of the invention
Based on this, be necessary the problem for the shortcoming of prior art, provide a kind of super subzero aq. type to fall thick emulsion splitter and preparation method thereof without flash-point, without flash-point, security is good, and preparation technology is simple, and cost of manufacture is low, environmental protection, safety.
Subzero aq. type falls a thick emulsion splitter without flash-point, described in fall thick emulsion splitter and formed by the raw material of following weight per-cent:
The percentage ratio sum of each component content is 100% above.
In an embodiment, described tensio-active agent is condensation compound of alkyl phenol and epoxy ethane therein.
In an embodiment, described polymerization alcohol ether is any in laureth-9 and ceteareth therein.
In an embodiment, described pour point depressant is any in ethylene glycol and ethanol therein.
In an embodiment, the preparation method that described super subzero aq. type falls thick emulsion splitter without flash-point comprises the following steps therein:
1., get the raw materials ready: described tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water are weighed according to described weight percent, with standby;
2., mix: tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water that step is weighed in 1. mix in mixing vessel;
3., stir: start to stir, tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water are fully mixed in mixing vessel, described in obtaining, fall thick emulsion splitter.
Above-mentioned super subzero aq. type falls thick emulsion splitter and preparation method thereof without flash-point, and this falls thick emulsion splitter is aq. type, and without flash-point, security is good, easy to use, and its preparation technology is simple, and cost of manufacture is low, can prepare at normal temperatures.This falls the thick rate of falling of thick emulsion splitter and reaches more than 97%, can carry out breakdown of emulsion to crude oil simultaneously.In addition, the present invention meets environmental protection ROHS standard, and human body, without impact, is had a good application prospect.Because its zero pour can be low to moderate-33 degree, can cover the ultimate temperature of oil field at home, be applicable to the oil field under the differing temps of different geographical.
Embodiment
Subzero aq. type falls a thick emulsion splitter without flash-point, described in fall thick emulsion splitter and formed by the raw material of following weight per-cent:
The percentage ratio sum of each component content is 100% above.
Wherein tensio-active agent is condensation compound of alkyl phenol and epoxy ethane; Polymerization alcohol ether is any in laureth-9 and ceteareth; Pour point depressant is any in ethylene glycol and ethanol.
The preparation method that this super subzero aq. type falls thick emulsion splitter without flash-point comprises the following steps:
1., get the raw materials ready: described tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water are weighed according to described weight percent, with standby;
2., mix: tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water that step is weighed in 1. mix in mixing vessel;
3., stir: start to stir, tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water are fully mixed in mixing vessel, described in obtaining, fall thick emulsion splitter.
Embodiment 1:
Super subzero aq. type falls thick emulsion splitter without flash-point and is comprised of the raw material of following weight per-cent:
The preparation method that this super subzero aq. type falls thick emulsion splitter without flash-point comprises the following steps:
1., get the raw materials ready: described condensation compound of alkyl phenol and epoxy ethane, laureth-9, ethylene glycol and deionized water are weighed according to the per-cent of 10:10:20:60, with standby;
2., mix: condensation compound of alkyl phenol and epoxy ethane, laureth-9, ethylene glycol and deionized water that step is weighed in 1. mix in mixing vessel;
3., stir: start to stir, it is fully mixed in mixing vessel, described in obtaining, fall thick emulsion splitter.
Embodiment 2:
Super subzero aq. type falls thick emulsion splitter without flash-point and is comprised of the raw material of following weight per-cent:
The preparation method that this super subzero aq. type falls thick emulsion splitter without flash-point comprises the following steps:
1., get the raw materials ready: described condensation compound of alkyl phenol and epoxy ethane, ceteareth, ethanol and deionized water are weighed according to the per-cent of 15:15:15:55, with standby;
2., mix: condensation compound of alkyl phenol and epoxy ethane, ceteareth, ethanol and deionized water that step is weighed in 1. mix in mixing vessel;
3., stir: start to stir, it is fully mixed in mixing vessel, described in obtaining, fall thick emulsion splitter.
Embodiment 3:
Super subzero aq. type falls thick emulsion splitter without flash-point and is comprised of the raw material of following weight per-cent:
The preparation method that this super subzero aq. type falls thick emulsion splitter without flash-point comprises the following steps:
1., get the raw materials ready: described condensation compound of alkyl phenol and epoxy ethane, laureth-9, ethanol and deionized water are weighed according to the per-cent of 20:20:20:40, with standby;
2., mix: condensation compound of alkyl phenol and epoxy ethane, laureth-9, ethanol and deionized water that step is weighed in 1. mix in mixing vessel;
3., stir: start to stir, it is fully mixed in mixing vessel, described in obtaining, fall thick emulsion splitter.
Above-mentioned super subzero aq. type falls thick emulsion splitter and preparation method thereof without flash-point, possesses simultaneously and falls thick and breakdown of emulsion function.The present invention be take deionized water as carrier, tensio-active agent are initiator, carries out modification, composite forming with polyfunctional compound.It has lipophilic group and hydrophilic radical, there are stronger surfactivity and good wettability, can reduce significantly the tension force of oil-water interface, destroy oil-water interface film, greatly reduce the coefficient of friction resistance that crude oil gathers course of conveying pipeline, by attraction, flocculation, the coalescence effect of emulsion splitter molecule, realize crude oil demulsification simultaneously.
In sum, the present invention is aq. type, and without flash-point, security is good, easy to use, and its preparation technology is simple, and cost of manufacture is low, meets environmental protection ROHS standard, and human body, without impact, is had a good application prospect.Its zero pour can be low to moderate-33 degree, can cover the ultimate temperature of oil field at home, is applicable to the oil field under different geographical, differing temps.This emulsion splitter starts there is demulsification when 35 spend, and special 40 reach best demulsification and consumption while spending compared with other products consumption few 20%.
The above embodiment has only expressed one or several embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (5)
1. super subzero aq. type falls a thick emulsion splitter without flash-point, it is characterized in that: described in fall thick emulsion splitter and formed by the raw material of following weight per-cent:
The percentage ratio sum of each component content is 100% above.
2. super subzero aq. type according to claim 1 falls thick emulsion splitter without flash-point, it is characterized in that: described tensio-active agent is condensation compound of alkyl phenol and epoxy ethane.
3. super subzero aq. type according to claim 1 falls thick emulsion splitter without flash-point, it is characterized in that: described polymerization alcohol ether is any in laureth-9 and ceteareth.
4. super subzero aq. type according to claim 1 falls thick emulsion splitter without flash-point, it is characterized in that: described pour point depressant is any in ethylene glycol and ethanol.
5. a preparation method for thick emulsion splitter falls in super subzero aq. type claimed in claim 1 without flash-point, it is characterized in that: described preparation method comprises the following steps:
1., get the raw materials ready: described tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water are weighed according to described weight percent, with standby;
2., mix: tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water that step is weighed in 1. mix in mixing vessel;
3., stir: start to stir, tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water are fully mixed in mixing vessel, described in obtaining, fall thick emulsion splitter.
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| CN201310536008.5A CN103555361B (en) | 2013-11-01 | 2013-11-01 | Water-based flash-point-free viscosity reducing demulsifier with ultralow freezing point and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916121A (en) * | 2017-11-24 | 2018-04-17 | 威海翔泽新材料科技有限公司 | A kind of tar ammonia release agent |
Citations (2)
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| US4737265A (en) * | 1983-12-06 | 1988-04-12 | Exxon Research & Engineering Co. | Water based demulsifier formulation and process for its use in dewatering and desalting crude hydrocarbon oils |
| CN102517069A (en) * | 2011-11-09 | 2012-06-27 | 克拉玛依新科澳石油天然气技术股份有限公司 | Heavy oil low-temperature demulsifier and preparation method thereof |
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2013
- 2013-11-01 CN CN201310536008.5A patent/CN103555361B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4737265A (en) * | 1983-12-06 | 1988-04-12 | Exxon Research & Engineering Co. | Water based demulsifier formulation and process for its use in dewatering and desalting crude hydrocarbon oils |
| CN102517069A (en) * | 2011-11-09 | 2012-06-27 | 克拉玛依新科澳石油天然气技术股份有限公司 | Heavy oil low-temperature demulsifier and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| 程艳等: ""低剂量天然气水合物抑制剂对渤海Ｍ油气田"", 《中国海上油气》 * |
| 邵倩等: ""大港南一站含水原油破乳剂筛选与油水界面张力"", 《油田化学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916121A (en) * | 2017-11-24 | 2018-04-17 | 威海翔泽新材料科技有限公司 | A kind of tar ammonia release agent |
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