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A kind of rapid demulsification and dehydration method for water-in-oil emulsion

A water-in-oil type and emulsion technology, which is applied in chemical instruments and methods, separation methods, liquid separation, etc., to achieve clean and environmentally friendly treatment, high efficiency, and low cost

Active Publication Date: 2018-01-05
CHONGQING TECH & BUSINESS UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies and problems existing in the existing demulsification and dehydration technology in the field of oil-water separation, the present invention provides a method for rapid demulsification and dehydration of water-in-oil emulsion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The melamine sponge is immersed in octadecyltrichlorosilane for surface treatment to obtain a super-oleophilic / super-hydrophobic sponge. The contact angle of the sponge material with oil is close to 0°, and the contact angle with water is 151°. The sponge is placed in a circular metal cylinder, the lower end of the cylinder is supported by a metal grid, the sponge is set on the metal grid, and the reciprocating extrusion plate is set on the upper end of the sponge.

[0009] Coating polyacrylic acid gel on the surface of cotton fiber board to make super-hydrophilic / super-oleophobic cotton fiber board, fix the prepared fiber boards at a 45° angle in a metal cylinder with a suitable height as a layer, and tilt them alternately from left to right The way of arrangement is to overlap the multi-layer metal cylinders. The purpose is to increase the contact area between the material and the oil-water mixture as much as possible. The overlapping cotton fiberboard cylinders are se...

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Abstract

The invention discloses a rapid demulsification dehydration method used for water-in-oil emulsion. According to the rapid demulsification dehydration method, full utilization of special interfacial characteristics of high-efficiency oil-water separation materials on oil and water is realized so as to realize rapid demulsification and dehydration, and the rapid demulsification dehydration method can be used for demulsification dehydration of water-in-oil emulsion. Compared with other demulsification dehydration methods, processing process is simple; no adsorbent or demulsifying agent is used; secondary pollution is less; processing cost is low; processing efficiency is high; adaptation performance is excellent; maintenance of processing equipment is simple; problems of the conventional demulsification dehydration methods in practical application process can be reduced or solved; emulsified oil solution dehydration problem in the field of oil-water separation is solved; and the rapid demulsification dehydration method possesses a promising commercial application prospect.

Description

technical field [0001] The invention belongs to the field of oil-water separation materials and oil purification, and its technical content relates to a method for oil demulsification and dehydration using high-efficiency oil-water separation nano-materials. Problems in demulsification dehydration method. Background technique [0002] Oil-water separation has always been an important content in the field of oil purification. The oil-water separation technologies used in the past, such as sedimentation, adsorption, centrifugation, vacuum separation, and cyclone separation, can separate the non-emulsion water in the oil well. Technical means and methods commonly used in the field of oil purification. However, in many cases, the water in the oil does not exist in free form, but forms stable W / O emulsion droplets under the action of asphaltenes, colloids, organic acid soaps and other interfacial active substances. The existence of the interfacial film severely hinders the inte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/05B01D17/022B01D17/02
CPCB01D17/02B01D17/0202B01D17/04
Inventor 吴云张贤明
Owner CHONGQING TECH & BUSINESS UNIV