CN103980932A - High-pour-point crude oil demulsifier - Google Patents
High-pour-point crude oil demulsifier Download PDFInfo
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- CN103980932A CN103980932A CN201410187218.2A CN201410187218A CN103980932A CN 103980932 A CN103980932 A CN 103980932A CN 201410187218 A CN201410187218 A CN 201410187218A CN 103980932 A CN103980932 A CN 103980932A
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Abstract
The invention provides a high-pour-point crude oil demulsifier. The high-pour-point crude oil demulsifier is prepared from the following components by weight: 20 to 50 parts of epoxypropane, 30 to 60 parts of oxirane, 10 to 15 parts of polyethylene polyamine or alkyl phenolic resin, 2.5 to 5 parts of toluene diisocyanate, 20 to 25 parts of a solvent and 1 to 15 parts of potassium hydroxide. The demulsifier provided by the invention is applicable to demulsification and dehydration of oil field crude oil and dehydration of oil refinery or other oil-water emulsions and has the characteristics of a fast demulsification speed, high dehydration efficiency and the like on asphalt-based crude oil with high viscosity, high gravity and high water content. In use, the demulsifier is injected into end points of a main oil transportation pipeline or into the dehydration pipeline of a combination station.
Description
Technical field
The present invention relates to petrochemical industry, refer in particular to a kind of crude oil demulsifier that can make crude oil demulsification dehydration.
Background technology
Oil and gas pipes collection is defeated is an important step in oil and gas industry oilfield exploitation procedure, for solving the problem occurring in oil-gas gathering and transportation process, must use a large amount of chemical agents, in oil-gas gathering and transportation process, chemical used is called oil-gas gathering and transportation chemical, it is one of important oil field chemical, and it mainly contains emulsion splitter, inhibiter, flow improver, emulsifying agent etc.Can make the chemical agent of emulsification crude oil demulsification dehydration crude oil demulsifier, because emulsified crude oil has two types of invert emulsion crude oil and oil-in-water emulsified crude oil, therefore crude oil demulsifier also divides two types, i.e. oil-in-water emulsify crude oil demulsifier and oil-in-water-type breast people 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.That existing emulsion splitter on the market exists is low to crude oil bad adaptability, breakdown of emulsion efficiency, easily cause the problems such as corrosion.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the crude oil demulsifier that a kind of crude oil adaptability is good, de-emulsification speed is fast, dewatering efficiency is high is provided.
For achieving the above object, technical scheme provided by the present invention is: high solidifying oily crude oil demulsifier, is formulated as with weight part: 20 ~ 50 parts of propylene oxide, 30 ~ 60 parts, oxyethane, polyethylene polyamine or alkyl phenolic resin 10 ~ 15,2.5 ~ 5 parts of toluene diisocyanates, 20 ~ 50 parts of solvents, 1 ~ 15 part, potassium hydroxide;
First according to weight part, take each component, then take alkyl phenolic resin or polyethylene polyamine as initiator, under potassium hydroxide catalyst effect, add oxyethane, propylene oxide, under pressurized conditions, carry out block copolymerization, crosslinked with toluene diisocyanate again, more composite 36% methanol solvate makes.
The emulsion splitter of this programme is applicable to the dehydration of crude oil breaking emulsion and dewatering, refinery and other oil hydrosols, to high viscosity, High Specific Radioactivity and high moisture crude asphaltic petroleum, has that de-emulsification speed is fast, dewatering efficiency high.During use, by ram pump, inject production trunk line end points or inject joint station dehydration pipeline.
Embodiment
Below the invention will be further described, preferred embodiment of the present invention is: high solidifying oily crude oil demulsifier, is formulated as with weight part: 20 parts of propylene oxide, 30 parts, oxyethane, polyethylene polyamine or alkyl phenolic resin 10,2.5 parts of toluene diisocyanates, 25 parts of solvents, 10 parts, potassium hydroxide; First according to weight part, take each component, then take alkyl phenolic resin or polyethylene polyamine as initiator, under potassium hydroxide catalyst effect, add oxyethane, propylene oxide, under pressurized conditions, carry out block copolymerization, crosslinked with toluene diisocyanate again, more composite 36% methanol solvate makes.The emulsion splitter of pressing this programme preparation is brown yellow transparent liquid at normal temperatures, water insoluble, is dissolved in the organic solvents such as ethanol, benzene and toluene, and it is solvent that finished product be take toluene or dimethylbenzene.Product adopts metal bucket packing, is stored in cool place, ventilation and dry place.The emulsion splitter that this programme is made is applicable to the dehydration of crude oil breaking emulsion and dewatering, refinery and other oil hydrosols, to high viscosity, High Specific Radioactivity and high moisture crude asphaltic petroleum, has that de-emulsification speed is fast, dewatering efficiency high.
The embodiment of the above is only the present invention's preferred embodiment, not with this, limits practical range of the present invention, therefore the variation that all shapes according to the present invention, principle are done all should be encompassed in protection scope of the present invention.
Claims (1)
1. high solidifying oily crude oil demulsifier, is characterized in that: with weight part, be formulated as: 20 ~ 50 parts of propylene oxide, 30 ~ 60 parts, oxyethane, polyethylene polyamine or alkyl phenolic resin 10 ~ 15,2.5 ~ 5 parts of toluene diisocyanates, 20 ~ 50 parts of solvents, 1 ~ 15 part, potassium hydroxide;
First according to weight part, take each component, then take alkyl phenolic resin or polyethylene polyamine as initiator, under potassium hydroxide catalyst effect, add oxyethane, propylene oxide, under pressurized conditions, carry out block copolymerization, crosslinked with toluene diisocyanate again, more composite 36% methanol solvate makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187218.2A CN103980932A (en) | 2014-05-06 | 2014-05-06 | High-pour-point crude oil demulsifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187218.2A CN103980932A (en) | 2014-05-06 | 2014-05-06 | High-pour-point crude oil demulsifier |
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| Publication Number | Publication Date |
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| CN103980932A true CN103980932A (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410187218.2A Pending CN103980932A (en) | 2014-05-06 | 2014-05-06 | High-pour-point crude oil demulsifier |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104292447A (en) * | 2014-09-18 | 2015-01-21 | 江苏科创石化有限公司 | Coal tar high-efficiency demulsifying agent and preparation method thereof |
| CN106701154A (en) * | 2016-12-12 | 2017-05-24 | 钦州学院 | Crude oil demulsifier and preparation method thereof |
| CN111051474A (en) * | 2017-07-31 | 2020-04-21 | 香港长龙集团有限公司 | Demulsifying agent for demulsifying asphalt from natural asphalt |
| WO2020258358A1 (en) * | 2019-06-28 | 2020-12-30 | 德仕能源科技集团股份有限公司 | Three-dimensional crude oil demulsifier, preparation method therefor, and application thereof |
| CN112807748A (en) * | 2019-11-15 | 2021-05-18 | 佛山市江河化工有限公司 | Environment-friendly deoiling agent |
| CN114292664A (en) * | 2021-12-28 | 2022-04-08 | 江苏汉光实业股份有限公司 | Oil-soluble demulsifying desalting agent and preparation method thereof |
| CN114456368A (en) * | 2020-11-10 | 2022-05-10 | 中国石油化工股份有限公司 | Drag reducer for gathering and transporting crude oil and preparation method thereof |
| CN114736707A (en) * | 2021-01-07 | 2022-07-12 | 中国石油天然气集团有限公司 | Composite polyether type demulsifier and preparation method thereof |
| CN115261060A (en) * | 2022-08-30 | 2022-11-01 | 克拉玛依市正诚有限公司 | Demulsifier suitable for high-pour-point oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1537924A (en) * | 2003-10-22 | 2004-10-20 | 山东大学 | Low-temperature quick deemulsifying agent for water-containing wax-containing erude oil and its preparation method |
| CN1775918A (en) * | 2005-12-12 | 2006-05-24 | 中国海洋石油总公司 | Crude oil deemulsifying agent and its preparing method |
-
2014
- 2014-05-06 CN CN201410187218.2A patent/CN103980932A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1537924A (en) * | 2003-10-22 | 2004-10-20 | 山东大学 | Low-temperature quick deemulsifying agent for water-containing wax-containing erude oil and its preparation method |
| CN1775918A (en) * | 2005-12-12 | 2006-05-24 | 中国海洋石油总公司 | Crude oil deemulsifying agent and its preparing method |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104292447A (en) * | 2014-09-18 | 2015-01-21 | 江苏科创石化有限公司 | Coal tar high-efficiency demulsifying agent and preparation method thereof |
| CN106701154A (en) * | 2016-12-12 | 2017-05-24 | 钦州学院 | Crude oil demulsifier and preparation method thereof |
| CN111051474A (en) * | 2017-07-31 | 2020-04-21 | 香港长龙集团有限公司 | Demulsifying agent for demulsifying asphalt from natural asphalt |
| WO2020258358A1 (en) * | 2019-06-28 | 2020-12-30 | 德仕能源科技集团股份有限公司 | Three-dimensional crude oil demulsifier, preparation method therefor, and application thereof |
| CN112807748A (en) * | 2019-11-15 | 2021-05-18 | 佛山市江河化工有限公司 | Environment-friendly deoiling agent |
| CN114456368A (en) * | 2020-11-10 | 2022-05-10 | 中国石油化工股份有限公司 | Drag reducer for gathering and transporting crude oil and preparation method thereof |
| CN114456368B (en) * | 2020-11-10 | 2023-09-22 | 中国石油化工股份有限公司 | Drag reducer for gathering and transporting crude oil and preparation method thereof |
| CN114736707A (en) * | 2021-01-07 | 2022-07-12 | 中国石油天然气集团有限公司 | Composite polyether type demulsifier and preparation method thereof |
| CN114292664A (en) * | 2021-12-28 | 2022-04-08 | 江苏汉光实业股份有限公司 | Oil-soluble demulsifying desalting agent and preparation method thereof |
| CN115261060A (en) * | 2022-08-30 | 2022-11-01 | 克拉玛依市正诚有限公司 | Demulsifier suitable for high-pour-point oil |
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Application publication date: 20140813 |