Demulsifier compounded from amido ionic liquid and polyether and preparation method thereof

An ionic liquid and demulsifier technology, applied in the direction of dehydration/demulsification by chemical methods, to achieve the effect of good effect, wide application range and few components

Inactive Publication Date: 2011-11-02
JURONG NINGWU CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Examples

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Effect test

Embodiment 1

[0014] A kind of synthetic method of amine type ionic liquid and polyether compound demulsifier, this synthetic method is as follows:

[0015] 1) Synthesis of ionic liquid dodecylamine acetate

[0016] In the 250ml flask that agitator, condenser, constant pressure dropping funnel are housed, add 0.5 mole of n-dodecylamine, then slowly add equimolar amount of glacial acetic acid dropwise with constant pressure dropping funnel, 80 under stirring state o C reacted for 5 hours, and finally cooled to room temperature to obtain a white or light yellow semi-solid product which is dodecylamine acetate.

[0017] 2) Synthesis of amine-type ionic liquid and polyether compound demulsifier

[0018] Mix 100 g of NJ-TA1031 demulsifier of Jurong Ningwu High-tech Development Co., Ltd. and 100 g of ionic liquid dodecylamine acetate to obtain about 200 g of compound crude oil demulsifier of dodecylamine acetate and polyether.

Embodiment 2

[0020] The synthetic method of ionic liquid dodecylamine acetate is the same as embodiment 1, the NJ-TA1031 demulsifier 80g of Jurong Ningwu High-tech Development Co., Ltd. and the ionic liquid dodecylamine acetate 120g are mixed uniformly, promptly obtain dodecylamine acetate and poly Ether compound crude oil demulsifier about 200g.

Embodiment 3

[0022] The synthetic method of ionic liquid dodecylamine acetate is the same as embodiment 1, and the NJ-TA1031 demulsifier 120g of Jurong Ningwu High-tech Development Co., Ltd. and 80g of ionic liquid dodecylamine acetate are mixed uniformly to obtain dodecylamine acetate and poly Ether compound crude oil demulsifier about 200g.

[0023] The demulsification effect comparison of the demulsifier produced by the present invention. Heat the solid crude oil from Jiangsu Oilfield in a water bath until it melts, mix it with odorless kerosene at a ratio of 4:3 (volume ratio) to form a simulated crude oil, then take an appropriate amount of simulated crude oil and deionized water at a ratio of 7:3 (35mL simulated crude oil and 15mL deionized water) Ionized water) were mixed, stirred with a high-shear emulsifier at 3000rpm for 10min to prepare a simulated crude oil emulsion, and poured into a 50mL stoppered graduated tube for use. The simulated crude oil emulsion prepared under this c...

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Abstract

The invention discloses a demulsifier compounded from amido ionic liquid and polyether and a preparation method thereof. The demulsifier is prepared from 30-70 parts by weight of the polyether and 30-70 parts by weight of the amido ionic liquid. A synthesis method of the demulsifier comprises the following steps of: reacting one or more than one of C4-C12 organic amines with one or more than one of C2-C5 organic acids at 60-90 DEG C to produce the amido ionic liquid; and then compounding the polyether and the amido ionic liquid. The demulsifier prepared by using the method disclosed by the invention has the advantages of less use dosage, wide application range and low demulsifying temperature.

Description

technical field [0001] The invention relates to an amine-type ionic liquid demulsifier and a preparation method thereof, which are suitable for demulsifying crude oil emulsions. Background technique [0002] With the continuous exploitation of crude oil and the continuous development and application of oil recovery technology, the crude oil emulsion has become more stable. Most of the crude oil produced in the oil field is exploited in the form of oil-water emulsion, and the water content of crude oil increases year by year, which aggravates the The task of demulsification and dehydration of emulsified crude oil is realized. At present, in terms of chemical types, the demulsifiers studied at home and abroad are mainly non-ionic polyoxyethylene polyoxypropylene block polymers, but the types of initiators are different. The adaptability of demulsifiers with this structure is relatively large. Poor, especially the low temperature demulsification effect is not satisfactory. In...

Claims

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Application Information

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IPC IPC(8): C10G33/04
Inventor 张文莉倪良应珏应军翟洪金徐美
Owner JURONG NINGWU CHEM
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