CN103865566A - High-efficiency low-temperature diesel oil demulsifier and industrial using method thereof - Google Patents
High-efficiency low-temperature diesel oil demulsifier and industrial using method thereof Download PDFInfo
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- CN103865566A CN103865566A CN201410126250.XA CN201410126250A CN103865566A CN 103865566 A CN103865566 A CN 103865566A CN 201410126250 A CN201410126250 A CN 201410126250A CN 103865566 A CN103865566 A CN 103865566A
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- diesel oil
- demulsifier
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- emulsion splitter
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Abstract
The invention discloses a high-efficiency low-temperature diesel oil demulsifier and an industrial using method of the demulsifier. With glycol or water serving as a solvent, the low-temperature compound diesel oil demulsifier can be obtained through the following steps: adding 0.2%-5% by mass of aliphatic alcohol epoxyethane, 0.2%-5% by mass of epoxypropane copolymer and 0.3%-10% by mass of heptadecyl imidazole; then adding 0.1%-5% by mass of alcohols as cosolvents; and stirring for evenly mixing. The using method comprises the following steps: directly pumping the demulsifier into a whole production system in a certain proportion; evenly mixing the demulsifier with emulsified diesel oil, wherein the concentration is controlled to be 100-400ppm and the reaction temperature is controlled to be 0 to minus 20 DEG C; and standing for 1-8 hours, thereby clearly separating an oil layer from a water layer. With a by-product produced by a petrochemical enterprise as a main raw material, the demulsifier is used for demulsifying diesel oil alkali residues and has a remarkable effect. In demulsification, the use amount of the demulsifier is small, the environment pollution is slight, the production cost is low and the application range is wide.
Description
Technical field
The present invention relates to a kind of low temperature modification diesel oil emulsion splitter and industrial application method thereof.
Background technology
The diesel oil that in crude oil processing, fractionation obtains, often contains the corrosivess such as naphthenic acid, and refinery generally adopts the method for alkali cleaning to remove naphthenic acid, but the sodium napthionate generating is tensio-active agent, easily makes diesel oil produce emulsification.Alkaline residue after alkali cleaning emulsification, the highly stable breakdown of emulsion that is difficult for, the oleaginousness in alkaline residue also obviously increases, and causes annual a large amount of fine-quality diesel oils waste, increases the load of waste disposal plant.
Diesel emulsion problem is prevalent in the production process of factory of each great oil refining.Along with improving constantly and the application of various raising recovery ratio methods of exploitation technology, also increasingly complex of diesel oil breaking emulsion and dewatering problem.And oil product after emulsification is difficult for processing, breaking emulsion and dewatering difficulty.Traditional settling mode is general, and what adopt is to add emulsion splitter to carry out chemical demulsification, or mixes and in crude oil, carry out freshening.But this method shortcoming is obvious, the former likely adds other materials in oil product, and the latter expends a large amount of manpower and materials, and the method for therefore studying new breakdown of emulsion is imperative.
Summary of the invention
The object of the present invention is to provide a kind of good working effect, efficient low temperature modification diesel oil emulsion splitter and industrial application method thereof easy to make.
Technical solution of the present invention is:
A kind of low temperature modification diesel oil emulsion splitter efficiently, is characterized in that: the one-tenth by following weight percent is grouped into:
Fatty alcohol oxyethane 0.2% ~ 5%
Epoxy propane copolymer 0.2% ~ 5%
Heptadecyl imidazoles 0.3% ~ 10%
Solubility promoter 0.1 ~ 5%
Solvent surplus.
Described solvent is ethylene glycol or water.
A kind of industrial application method of described efficient low temperature modification diesel oil emulsion splitter, it is characterized in that: efficient low temperature modification diesel oil emulsion splitter is directly pumped in integral production system, mix with diesel oil emulsification, controlled concentration is at 100 ~ 400ppm, temperature of reaction is at 0 DEG C ~-20 DEG C, leave standstill after 1 ~ 8 hour, profit layering is clear.
Emulsion splitter, after the system of entering, is adding the initial stage, and in medicament, long chain molecule enters rapidly in emulsion layer, and formation aligns.Epoxide group in agent molecule structure relies on its wetting ability, effectively catches the H in emulsion layer
2o molecule.Oil loving long chain alkane aligns in water-oil interface because of it, separates by force profit mixolimnion on the one hand, makes on the other hand epoxide group carry H
2o, away from oil phase, finally realizes profit and separates completely.
Advantage of the present invention:
1. the byproduct that this product adopts petrochemical enterprise to produce is main raw material, and for diesel alkaline residue is carried out to breakdown of emulsion processing, effect is remarkable.Breakdown of emulsion excessively in, emulsion splitter usage quantity is few, low in the pollution of the environment, manufacturing cost is low, applied widely.
2. this product has resistance to low temperature, under physical environment temperature condition its purification of diesel stable performance good, can be effective fast, do not affect the operation of whole diesel production.
3. this product belongs to low temperature modification diesel oil emulsion splitter, soluble in water, be applicable to the environment of subzero 20 DEG C.
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is production and application process flow sheet of the present invention.
Embodiment
Embodiment 1:
Add 0.1% fatty alcohol oxyethane by mass percent, 0.5% epoxy propane copolymer, 1.5% heptadecyl imidazoles, 0.5% solubility promoter methyl alcohol, surplus is solvent ethylene glycol, is uniformly mixed and obtains low temperature Compositional type diesel oil emulsion splitter.This diesel oil emulsion splitter certain proportion is directly pumped in integral production system, mix with diesel oil emulsification, controlled concentration, at 100ppm, fully mixes at-5 DEG C, leaves standstill after 2 hours, and profit layering is clear.
Embodiment 2:
Add 1.0% fatty alcohol oxyethane by mass percent, 0.5% epoxy propane copolymer, 1.5% heptadecyl imidazoles, 0.5% solubility promoter propyl alcohol, surplus is solvent ethylene glycol, is uniformly mixed and obtains low temperature Compositional type diesel oil emulsion splitter.This diesel oil emulsion splitter certain proportion is directly pumped in integral production system, mix with diesel oil emulsification, controlled concentration, at 150ppm, fully mixes at-10 DEG C, leaves standstill after 4 hours, and profit layering is clear.
Embodiment 3:
Add 2.0% fatty alcohol oxyethane by mass percent, 3.0% epoxy propane copolymer, 3% heptadecyl imidazoles, 0.1% solubility promoter methyl alcohol, surplus is aqueous solvent, is uniformly mixed and obtains low temperature Compositional type diesel oil emulsion splitter.This diesel oil emulsion splitter certain proportion is directly pumped in integral production system, mix with diesel oil emulsification, controlled concentration, at 200ppm, fully mixes at-15 DEG C, leaves standstill after 6 hours, and profit layering is clear.
Embodiment 4:
Add 3.0% fatty alcohol oxyethane by mass percent, 1.5% epoxy propane copolymer, 6.0% heptadecyl imidazoles, 1.0% solubility promoter propyl alcohol, surplus is aqueous solvent, is uniformly mixed and obtains low temperature Compositional type diesel oil emulsion splitter.This diesel oil emulsion splitter certain proportion is directly pumped in integral production system, mix with diesel oil emulsification, controlled concentration, at 300ppm, fully mixes at-20 DEG C, leaves standstill after 8 hours, and profit layering is clear.
Embodiment 5:
Add 5.0% fatty alcohol oxyethane by mass percent, 5.0% epoxy propane copolymer, 10% heptadecyl imidazoles, 1.0% solubility promoter propyl alcohol, surplus is aqueous solvent, is uniformly mixed and obtains low temperature Compositional type diesel oil emulsion splitter.This diesel oil emulsion splitter certain proportion is directly pumped in integral production system, mix with diesel oil emulsification, controlled concentration, at 400ppm, fully mixes at-25 DEG C, leaves standstill after 2 hours, and profit layering is clear.
Claims (3)
1. an efficient low temperature modification diesel oil emulsion splitter, is characterized in that: the one-tenth by following weight percent is grouped into:
Fatty alcohol oxyethane 0.2% ~ 5%
Epoxy propane copolymer 0.2% ~ 5%
Heptadecyl imidazoles 0.3% ~ 10%
Solubility promoter 0.1 ~ 5%
Solvent surplus.
2. efficient low temperature modification diesel oil emulsion splitter according to claim 1, is characterized in that: described solvent is ethylene glycol or water.
3. the industrial application method of an efficient low temperature modification diesel oil emulsion splitter claimed in claim 1, it is characterized in that: efficient low temperature modification diesel oil emulsion splitter is directly pumped in integral production system, mix with diesel oil emulsification, controlled concentration is at 100 ~ 400ppm, temperature of reaction is at 0 DEG C ~-20 DEG C, leave standstill after 1 ~ 8 hour, profit layering is clear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126250.XA CN103865566B (en) | 2014-04-01 | 2014-04-01 | High-efficiency low-temperature diesel oil demulsifier and industrial using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126250.XA CN103865566B (en) | 2014-04-01 | 2014-04-01 | High-efficiency low-temperature diesel oil demulsifier and industrial using method thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510095726.2A Division CN104673360B (en) | 2014-04-01 | 2014-04-01 | The industrial application method of efficient low form diesel oil demulsifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103865566A true CN103865566A (en) | 2014-06-18 |
| CN103865566B CN103865566B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410126250.XA Expired - Fee Related CN103865566B (en) | 2014-04-01 | 2014-04-01 | High-efficiency low-temperature diesel oil demulsifier and industrial using method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980002432A1 (en) * | 1979-05-01 | 1980-11-13 | Nippon Steel Chemical Co | Process for treating aqueous waste oil |
| CN101712885A (en) * | 2009-11-25 | 2010-05-26 | 中国石油天然气股份有限公司 | Dehydration demulsifying agent for clay-bearing produced fluid |
| US20120043258A1 (en) * | 2009-04-28 | 2012-02-23 | Clariant Finance (Bvi) Limited | Use Of Biodegradable Alkoxylated (Meth)Acrylate Copolymers As Crude Oil Demulsifiers |
-
2014
- 2014-04-01 CN CN201410126250.XA patent/CN103865566B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980002432A1 (en) * | 1979-05-01 | 1980-11-13 | Nippon Steel Chemical Co | Process for treating aqueous waste oil |
| US20120043258A1 (en) * | 2009-04-28 | 2012-02-23 | Clariant Finance (Bvi) Limited | Use Of Biodegradable Alkoxylated (Meth)Acrylate Copolymers As Crude Oil Demulsifiers |
| CN101712885A (en) * | 2009-11-25 | 2010-05-26 | 中国石油天然气股份有限公司 | Dehydration demulsifying agent for clay-bearing produced fluid |
Non-Patent Citations (1)
| Title |
|---|
| 张宏伟等: "聚醚型重油破乳剂的制备及其应用研究", 《化学工程与装备》 * |
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| CN103865566B (en) | 2015-06-10 |
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Granted publication date: 20150610 Termination date: 20160401 |