通过疏水性-疏水性-疏水性过层进行连续的脱,以实现高性能的石油回收
Xi Li1,2, Gong Zhang3, Huijuan Liu3
1State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Environmental science & technology
|August 2, 2023
概括
一种新的疏水-水-疏水 (3H) 膜有效地去乳化稳定的油在水乳液. 这种膜实现了高透性和效率,这对于有效的石油回收应用至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 基于膜的脱硫是从稳定的乳液中回收石油的关键.
- 目前的膜缺乏有效的油滴凝聚,限制了透性和应用.
- 开发先进的过介质对于改善油水分离是必不可少的.
研究的目的:
- 开发一种新的疏水-疏水-疏水 (3H) 脱介质.
- 为了评估3H介质的效率和透性,用于油在水乳液.
- 阐明3H介质脱性能背后的机制.
主要方法:
- 制造一个三层 (3H) 疏水-疏水-疏水膜.
- 对脱硫效率和透性的性能测试.
- 使用准现场显微镜和分子动力学模拟进行机械研究.
主要成果:
- 3H介质实现了~2.1 × 10^4 L m^-2 h^-1 的基准透率.
- 脱硫效率超过98.0%,在各种表面活性剂度中保持>90%.
- 层层的结构促进了连续的油滴捕获,凝聚和排放.
结论:
- 3H脱硫介质为石油回收提供了高效率和透性.
- 顺序解机制为先进的膜提供了一个设计策略.
- 这项技术在处理具有不同稳定性的油在水乳液方面显示出出色的适用性.
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