在油水界面探测青和PEO-PPO脱硫剂之间的相互作用:温度的影响
Yueying Huang1, Xiaohui Mao2, Diling Yang1
1Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada.
Journal of colloid and interface science
|September 28, 2024
概括
升高的温度通过加速油水界面上的青位,提高了乳液断层的性能,提高了油砂行业的油水分离效率.
科学领域:
- 合体和表面科学科学
- 石油工程是石油工程中的一个.
- 材料科学 材料科学 材料科学
背景情况:
- 青稳定油中的水乳液,导致石油行业的腐蚀和污染等操作问题.
- 在油砂操作中,高温加工是常见的,可能会影响乳液稳定性和分离.
- 了解高温下的青-乳液断裂器相互作用对于高效的油/水分离至关重要.
研究的目的:
- 研究温度对青酸盐和PEO-PPO型乳液断裂器 (EB) 在油水界面的吸附和相互作用的影响.
- 评估温度如何影响EB的脱性能.
- 阐明了在不同温度下涉及青和EB的脱硫机制.
主要方法:
- 界面张力测量和石英晶体微平衡与消散 (QCM-D) 来研究吸附和薄膜破坏.
- 原子力显微镜 (AFM),包括滴滴探针技术,用于界面成像和力测量.
- 瓶子测试以评估不同温度下的乳液破解器的脱乳效率.
主要成果:
- PEO-PPO型EB表现出比青更高的界面活性,能够破坏青膜.
- 温度升高加快了EB分子对青酸盐的排离,从而导致表面膜稀疏.
- 较高的温度导致更快的滴滴凝聚和显著提高的脱效率,由AFM和瓶子测试证实.
结论:
- 升高的温度提高了PEO-PPO类型乳液破解器在破坏油水界面上的青膜的有效性.
- 温度在青位移和随后的乳液不稳定性的动力学中起着至关重要的作用.
- 这项研究为优化乳液破解器配方和工艺提供了关键的见解,以改善高温应用中的油/水分离.
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