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Organosilicon reinforced composite type oil phase dispersed demulsifying agent

An organosilicon and demulsifier technology, applied in the direction of chemical dehydration/demulsification, etc., can solve the problems of high cost and cannot be completely replaced, and achieve the effect of reducing usage, less oil in drainage, and improving broad-spectrum.

Inactive Publication Date: 2009-08-05
江苏三星化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silicone demulsifiers are not often used alone. On the one hand, the cost is high. On the other hand, silicone demulsifiers cannot completely replace non-silicon traditional demulsifiers.

Method used

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  • Organosilicon reinforced composite type oil phase dispersed demulsifying agent
  • Organosilicon reinforced composite type oil phase dispersed demulsifying agent
  • Organosilicon reinforced composite type oil phase dispersed demulsifying agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A

[0027] Composite demulsifier composition: silicone demulsifier (grade: 321), 10%; non-silicon demulsifier AP221, 15%; non-silicon demulsifier AR36, 25%; dodecylbenzenesulfonic acid, 0.5%; Mixed xylene solvent, 39.5%; hydrocarbon solvent naphtha 200#, 10%. The silicone-based reinforced composite oil phase dispersion demulsifier formed by compounding is compared with the mixed crude oil emulsion of Liaohe: Daqing = 70:30 (weight ratio) at 80 ° C. The comparison table below shows the dehydration efficiency.

[0028]

[0029]

Embodiment B

[0031] Organosilicon-based enhanced composite oil phase dispersion demulsifier composition: silicone demulsifier (brand: 606), 5%; non-silicon demulsifier BP2040, 10%; non-silicon demulsifier AR46, 35%; dodecyl Benzenesulfonic acid, 0.5%; Aromatic solvent, 44.5%; Isopropanol, 5%. The dehydration efficiency of the compounded demulsifier to the mixed crude oil emulsion of Shengli crude oil and Oman crude oil at 85°C is compared in the following table.

[0032]

Embodiment C

[0034] Silicone reinforced compound oil phase dispersion demulsifier composition: silicone polymer demulsifier (brand: 1636), 8%; non-silicon demulsifier AE0604, 10%; non-silicon demulsifier BP2070, 5%; non-silicon Demulsifier ZR101, 32%; dodecylbenzenesulfonic acid, 0.6%; mixed aromatic solvent, 34.4%; isopropanol, 5%; methanol, 5%. The dehydration efficiency of the compounded demulsifier against a light Sudanese crude oil (higher acid value) at 65°C is compared in the following table.

[0035]

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PUM

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Abstract

The invention discloses compound oil phase dispersing emulsion splitter which uses polysilicone emulsion splitter as strengthening agent and is produced by preparing the traditional non-siliceous emulsion splitter, additive and mixed solvent. The compound oil phase dispersing emulsion splitter effectively increases the application effect of the traditional non-siliceous emulsion splitter by using the special function of the polysilicone emulsion splitter and the joint function of the traditional non-siliceous emulsion splitter and has the functions of high emulsion splitting efficiency, less consumption, high comprehensive performance price ratio, wide adaptability to different crude oils and low temperature emulsion splitting.

Description

technical field [0001] The invention relates to a kind of composite demulsifier which adopts organosilicon polymer demulsifier as reinforcing agent and is compounded with traditional non-silicon demulsifier, and can quickly disperse in hydrocarbon oil phase. It is mainly used in the emulsion of crude oil Demulsification, dehydration, desalination process. Background technique [0002] Currently widely used non-silicon polyether demulsifiers have a C-C main chain in their molecular structure, and most of the hydrophilic and lipophilic groups are distributed in the form of polyoxyethylene, polyoxypropylene copolymerization or block polymerization segments. The organosilicon polymer demulsifier is a demulsifier molecule with special structure and function. Its molecular structure contains Si-O bond main chain and Si-C bond. Branched chain substituents can be designed as various hydrophilic, Lipophilic molecular groups and substituents can make silicone demulsifiers have specif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/04
Inventor 刘建春王洪福王龙祥韦伟
Owner 江苏三星化工有限公司
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