一种含聚合物油田产出污水破乳剂

By loading compounds with cage-like structures onto nano-alumina to prepare demulsifiers, the problem of complex preparation processes in the treatment of heavy oil polymer-containing wastewater and acidic oil and gas field wastewater is solved. This achieves efficient oil-water separation and a simplified preparation process, making it suitable for large-scale industrial applications.

CN121044678BActive Publication Date: 2026-07-17CHINA PETROLEUM & CHEMICAL CORP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2024-05-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing chemical demulsifiers have complex preparation processes and are not suitable for large-scale industrial production when treating heavy oil-containing wastewater and acidic oil and gas field wastewater, and the treatment effect is not ideal.

Method used

Using nano-alumina as a carrier, a compound with a cage-like structure is loaded as a demulsifier. The demulsifier is prepared by ultrasonic reaction of triethanolamine and polyetheramine in a solvent. The compound has amino, ether, alkyl and other groups, which enhance the oil-water interface separation ability and the interface film rupture effect.

Benefits of technology

It achieves rapid and efficient oil-water separation, simplifies the preparation process, reduces costs, is suitable for large-scale industrial production, and achieves an oil removal rate of over 90%.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种含聚合物油田产出污水破乳剂,属于油田污水处理技术领域。本发明的破乳剂包括纳米氧化铝和负载在纳米氧化铝上具有以下结构式的化合物其中,n=5~10。该破乳剂由包括以下的步骤制备:以三乙醇胺和聚醚胺为原料,以纳米氧化铝为载体及催化剂,在溶剂中超声反应。本发明的破乳剂具有氨基、醚基、烷基等基团,且具备纳米级别的链长使得破乳剂表面活性大大增强,能够分散且吸附在油水界面膜上,降低乳状液的油水界面张力,界面膜稳定性快速下降发生破裂。而且本发明的破乳剂合成简便、易于操作,工艺条件简单,减少了合成风险以及费用。
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