CN105670592A

CN105670592A - Thickened oil emulsifier and preparation method thereof

Info

Publication number: CN105670592A
Application number: CN201610188570.7A
Authority: CN
Inventors: 许虎君; 徐凯; 李晓邦
Original assignee: Jiangnan University
Current assignee: Jiangnan University
Priority date: 2016-03-29
Filing date: 2016-03-29
Publication date: 2016-06-15

Abstract

The invention discloses a thickened oil emulsifier and a preparation method thereof, in particular to a thickened oil emulsifier containing N, N'-bis-hexadecanoyl ethanediamine sodium dipropionate Gemini surfactant and a preparation method thereof. The Gemini anionic surfactant is compounded with nonionic surfactant to obtain the thickened oil emulsifier with high emulsification capacity. The thickened oil emulsifier is composed of N, N'-bis-hexadecanoyl ethanediamine sodium dipropionate, Span-80, Tween-80 and water, wherein the mass percent of N, N'-bis-hexadecanoyl ethanediamine sodium dipropionate is 0.3 to 1 percent; the mass percent of Span-80 is 0.5 to 1.5 percent; the mass percent of Tween-80 is 0.5 to 1.5 percent; and the balance is water. The thickened oil emulsifier is high in emulsification capacity and can be used for exploiting the thickened oil in an emulsification manner.

Description

A kind of thick oil emulsifier and its preparation method

Technical field

The present invention relates to a kind of thick oil emulsifier.

Background technology

The exploitation degree of oil is being deepened day by day, and the reserves of ordinary crude oils and Ke Cai measure in continuous decline. In China, viscous crude resource is very abundant, mainly in Xinjiang, triumph, North China, the Liaohe River, the oil field such as huge port and Jilin. It is reported, the heavy oil reserves of China comes the 7th, the world.

Viscous crude (heavy oil) resource occupies sizable ratio in World's Oil and Gas Resources. Predict according to USDOE Washington.D.C, to the middle of this century, viscous crude and super-viscous oil will account for more than half of world energy sources supply, and therefore someone claims century of 21st century will being viscous crude and super-viscous oil, and the Exploitation research of viscous crude and super-viscous oil is the important subject of oil-field development from now on. Viscous crude has high viscosity and high-solidification point characteristic so that it is all run into some technical barriers in all respects such as production, transports.

The tensio-active agents such as thick oil emulsifier can reduce oil water interfacial tension, makes oil-water emulsion form water external emulsion, can greatly reduce the viscosity of system, reduces resistance to flow, be conducive to exploitation and the transport of viscous crude. , since the seventies, constantly there have been the development of emulsifying and viscosity-reducing agent for condensed oil and the document report of rig-site utilization in China, but this type of work is still in the experimental exploration stage so far. Along with the development of tensio-active agent, the remarkable advantages such as Gemini surface active agent is low with its micelle-forming concentration, adsorptive capacity is few cause the extensive concern of investigator.

Gemini surface active agent is owing to cmc value is lower, surfactivity is higher, it is very little to form ultra low interfacial tension desired concn, therefore oil water interfacial tension can be reduced in high-level efficiency ground, and there are good solubilising and compounding capacity, chemical thermal equilibrium has huge application prospect.

Summary of the invention

In order to solve the problem, it is an object of the invention to provide a kind of thick oil emulsifier and its preparation method.

The technical scheme of the present invention is as follows:

The present invention provides a kind of thick oil emulsifier, it is characterised in that according to mass percentage, N, N '-bis-palmitoyl ethylene diamine dipropionic acid sodium accounts for 0.3%-1%; Span-80 accounts for 0.5%-1.5%; Tween-80 accounts for 0.5%-1.5%; Residual content is water.

Above-mentioned thick oil emulsifier, it is characterised in that adopt Gemini anionic surface active agent N, N '-bis-palmitoyl ethylene diamine dipropionic acid sodium and nonionogenic tenside Span-80, Tween-80.

Above-mentioned thick oil emulsifier; it is characterized in that; preparation process is: join in stirring tank by the half of preparation described thick oil emulsifier institute water requirement; by N; N '-bis-palmitoyl ethylene diamine dipropionic acid sodium adds stirring and dissolving in still, then adds Span-80, Tween-80, finally adds the water of residual content; stir until all dissolving, this thick oil emulsifier obtained transparent after continuing to stir 30min.

The application of above-mentioned thick oil emulsifier in the emulsification of viscous crude is exploited.

The Advantageous Effects of the present invention is:

Thick oil emulsifier emulsifying capacity prepared by the present invention is strong.

Embodiment

Below the specific embodiment of the present invention is described further.

Embodiment 1 one kinds of thick oil emulsifiers, it adopts following formula:

N, N '-bis-palmitoyl ethylene diamine dipropionic acid sodium accounts for 1%; Span-80 accounts for 0.5%; Tween-80 accounts for 0.5%; Residual content is water.

Concrete preparation process:

The half of preparation described thick oil emulsifier institute water requirement is joined in stirring tank; by N; N '-bis-palmitoyl ethylene diamine dipropionic acid sodium adds stirring and dissolving in still; add Span-80, Tween-80 again; finally add the water of residual content; stir until all dissolving, this thick oil emulsifier obtained transparent after continuing to stir 30min.

Embodiment 2 one kinds of thick oil emulsifiers, it adopts following formula:

N, N '-bis-palmitoyl ethylene diamine dipropionic acid sodium accounts for 0.5%; Span-80 accounts for 0.7%; Tween-80 accounts for 0.8%; Residual content is water.

This example preparation process is with embodiment 1.

Embodiment 3 one kinds of thick oil emulsifiers, it adopts following formula:

N, N '-bis-palmitoyl ethylene diamine dipropionic acid sodium accounts for 0.3%; Span-80 accounts for 1.5%; Tween-80 accounts for 0.9%; Residual content is water.

This example preparation process is with embodiment 1.

Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment. It can be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the basic idea of the present invention or associate, all should think and be included within protection scope of the present invention.

Claims

1. a thick oil emulsifier, it is characterised in that according to mass percentage, N, N '-bis-palmitoyl ethylene diamine dipropionic acid sodium accounts for 0.3%-1%; Span-80 accounts for 0.5%-1.5%; Tween-80 accounts for 0.5%-1.5%; Residual content is water.

2. thick oil emulsifier as claimed in claim 1, it is characterised in that adopt Gemini anionic surface active agent N, N '-bis-palmitoyl ethylene diamine dipropionic acid sodium and nonionogenic tenside Span-80, Tween-80.

3. thick oil emulsifier described in claim 1; it is characterized in that; preparation process is: join in stirring tank by the half of preparation described thick oil emulsifier institute water requirement; by N; N '-bis-palmitoyl ethylene diamine dipropionic acid sodium adds stirring and dissolving in still, then adds Span-80, Tween-80, finally adds the water of residual content; stir until all dissolving, this thick oil emulsifier obtained transparent after continuing to stir 30min.

4. as claimed in claim 1 thick oil emulsifier viscous crude emulsification exploit in application.