CN103555361B - 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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- CN103555361B CN103555361B CN201310536008.5A CN201310536008A CN103555361B CN 103555361 B CN103555361 B CN 103555361B CN 201310536008 A CN201310536008 A CN 201310536008A CN 103555361 B CN103555361 B CN 103555361B
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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 technical field of petrochemical industry, 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, is made up of the hydrocarbon of different relative molecular mass, different structure and a small amount of non-hydrocarbon compound matter.Because of containing a large amount of colloids and pitch, thus poor fluidity in crude oil system, viscosity is very large, brings series of problems to Oil extraction, Pipeline transport, processing and utilization etc.General under reservoir temperature, the viscosity of gas-free oil is viscous crude more than the crude oil of 100mpa.s.In the oilfield exploitation middle and later periods because water ratio raises, also transport in the flow process of joint station flowing to ground from shaft bottom by further collection together with water for crude oil, through the stirring action of valve, oil nozzle, pipeline, valve, pump, it is made to be mixed into milk sap, the crude oil emulsion formed can increase the flow quantity of collection, adds mechanical wear and the energy expenditure of course of conveying.Therefore, viscosity reduction, demulsification technology are carried out to crude oil, improve the condition of crude oil collection and conveying, reduce energy consumption, increase work efficiency and economic benefit.
Emulsion splitter is the oil field chemical that in petroleum industry, consumption is maximum.Adopt traditional emulsion splitter to carry out heavy oil dehydration, dehydration temperaturre is high, needs heating crude oil to comparatively high temps, and containing aromatic hydrocarbons in traditional emulsion splitter, as benzene, toluene and dimethylbenzene etc., this type of raw material has flash-point, and flash-point is lower, in high speed operation process, have the danger of catching fire, security is low.
Summary of the invention
Based on this, be necessary the problem of the shortcoming for 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.
A kind of super subzero aq. type falls thick emulsion splitter without flash-point, described in fall thick emulsion splitter and be made up of the raw material of following weight per-cent:
The percentage ratio sum of each component content is 100% above.
Wherein in an embodiment, described tensio-active agent is condensation compound of alkyl phenol and epoxy ethane.
Wherein in an embodiment, described polymerization alcohol ether is any one in laureth-9 and ceteareth.
Wherein in an embodiment, described pour point depressant is any one in ethylene glycol and ethanol.
Wherein in an embodiment, the preparation method that described 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 for subsequent use;
2., mix: step 1. in weigh tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water mix in the mixing container;
3., stir: start stir, make tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water fully mix in the mixing container, described in namely obtaining, thick emulsion splitter falls.
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 thick rate of falling of falling thick emulsion splitter reaches more than 97%, can carry out breakdown of emulsion to crude oil simultaneously.In addition, the present invention meets environmental protection ROHS standard, on human body without impact, has a good application prospect.Because its zero pour can be low to moderate-33 degree, the ultimate temperature of oil field at home can be covered, be applicable to the oil field under the differing temps of different geographical.
Embodiment
A kind of super subzero aq. type falls thick emulsion splitter without flash-point, described in fall thick emulsion splitter and be made up of 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 one in laureth-9 and ceteareth; Pour point depressant is any one 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 for subsequent use;
2., mix: step 1. in weigh tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water mix in the mixing container;
3., stir: start stir, make tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water fully mix in the mixing container, described in namely obtaining, thick emulsion splitter falls.
Embodiment 1:
Super subzero aq. type falls thick emulsion splitter without flash-point and is made up 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 the deionized water per-cent according to 10:10:20:60 is weighed, with for subsequent use;
2., mix: step 1. in condensation compound of alkyl phenol and epoxy ethane, laureth-9, ethylene glycol and the deionized water of weighing mix in the mixing container;
3., stir: start to stir, make it fully mix in the mixing container, described in namely obtaining, fall thick emulsion splitter.
Embodiment 2:
Super subzero aq. type falls thick emulsion splitter without flash-point and is made up 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 the deionized water per-cent according to 15:15:15:55 is weighed, with for subsequent use;
2., mix: step 1. in condensation compound of alkyl phenol and epoxy ethane, ceteareth, ethanol and the deionized water of weighing mix in the mixing container;
3., stir: start to stir, make it fully mix in the mixing container, described in namely obtaining, fall thick emulsion splitter.
Embodiment 3:
Super subzero aq. type falls thick emulsion splitter without flash-point and is made up 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 the deionized water per-cent according to 20:20:20:40 is weighed, with for subsequent use;
2., mix: step 1. in condensation compound of alkyl phenol and epoxy ethane, laureth-9, ethanol and the deionized water of weighing mix in the mixing container;
3., stir: start to stir, make it fully mix in the mixing container, described in namely 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 take deionized water as carrier, tensio-active agent is initiator, carries out modification with polyfunctional compound, compositely to form.It has lipophilic group and hydrophilic radical, there are stronger surfactivity and good wettability, the tension force of oil-water interface can be reduced significantly, destroy oil-water interface film, greatly reduce the coefficient of friction resistance that crude oil gathers course of conveying pipeline, realize crude oil demulsification by the attraction of emulsion splitter molecule, flocculation, coalescence effect 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, on human body without impact, has a good application prospect.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 different geographical, differing temps.This emulsion splitter starts there is demulsification 35 degree time, reaches best demulsification and consumption comparatively other products consumption few 20% when special 40 degree.
The above embodiment only have expressed one or several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not 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 (2)
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 be made up of the raw material of following weight per-cent:
The percentage ratio sum of each component content is 100% above; Wherein, described tensio-active agent is condensation compound of alkyl phenol and epoxy ethane; Described polymerization alcohol ether is any one in laureth-9 and ceteareth; Described pour point depressant is any one in ethylene glycol and ethanol.
2. a preparation method for thick emulsion splitter falls in super subzero aq. type according to 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 for subsequent use;
2., mix: step 1. in weigh tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water mix in the mixing container;
3., stir: start stir, make tensio-active agent, polymerization alcohol ether, pour point depressant and deionized water fully mix in the mixing container, described in namely obtaining, thick emulsion splitter falls.
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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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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 |
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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 |
|---|
| "大港南一站含水原油破乳剂筛选与油水界面张力";邵倩等;《油田化学》;20090325;第26卷(第1期);第62-64页 * |
| 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》.2012,第24卷(第2期),第47-49页. * |
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