有效的CO2/CH4分离使用聚硫/NH2-MIL-125 (Ti) 混合矩阵膜.
Mustafa Alsaady1, Sharjeel Waqas2, Muhammad Hamad Zeeshan2
1Chemical Engineering Department, University of Jeddah, Jeddah 23890, Kingdom of Saudi Arabia.
ACS omega
|April 7, 2025
概括
这项研究开发了先进的混合矩阵膜 (MMMs),使用NH2-MIL-125(Ti) 金属有机框架在多硫矩阵中,以实现更高的CO2/CH4分离. 优化的膜显示出增强的选择性和对二氧化碳可塑化的抵抗性.
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.
- 分离科学 分离科学
背景情况:
- 混合矩阵膜 (MMM) 提供了气体分离的潜力.
- 聚硫 (PSf) 膜受到二氧化碳塑化的影响.
- 金属有机框架 (MOFs) 可以提高膜的性能.
研究的目的:
- 制造和优化以聚硫为基础的MMM,采用NH2-MIL-125(Ti) MOF用于CO2/CH4分离.
- 评估NH2-MIL-125(Ti) 对膜形态,气体透性,选择性和塑化阻力的影响.
- 为了比较MMM与原始PSf膜的性能.
主要方法:
- 用于MMM制造的溶液造方法.
- 气体透设置用于性能评估 (透性和选择性).
- 膜的形态特征. 膜的形态特征.
主要成果:
- 加入NH2-MIL-125(Ti) 增强了CO2/CH4的选择性,并保持了透性.
- 该PSf/NH2-MIL-125(Ti) -15%的膜实现了19.17的壁垒二氧化碳透率和31.95的二氧化碳2/CH4选择性.
- 与PSf膜 (4bar) 相比,MMM对CO2塑化 (高达14bar) 的抗性显著提高.
结论:
- 开发的PSf/NH2-MIL-125(Ti) MMM在二氧化碳分离方面非常有效.
- 这些MMM表现出比传统PSf膜更优越的性能指标.
- 这些发现突出了NH2-MIL-125 ((Ti) 结合用于先进的工业气体分离应用的潜力.
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