在佩巴克斯膜中建造高速便利运输通道,使用蒙莫里隆石进行高效的CO2分离
Bing Zhang1, Renying Qian1, Yu Jiang1
1Liaoning Province Professional and Technical Innovation Centre for Fine Chemical Engineering of Aromatics Downstream, School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang, People's Republic of China.
Environmental technology
|September 22, 2024
概括
这项研究开发了使用蒙莫里隆石 (MMT) 的高性能混合矩阵膜 (MMM),以增强二氧化碳 (CO2) 与的分离. 最佳6%的MMT含量实现了出色的CO2/N2选择性和透性.
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.
- 环境科学 环境科学
背景情况:
- 高性能混合矩阵膜 (MMM) 对于推进二氧化碳 (CO2) 分离技术至关重要.
- 提高二氧化碳分离膜的商业可行性和实际应用需要提高性能.
- 聚乙块胺 (Pebax1074) 作为开发有效的二氧化碳分离膜的有希望的矩阵.
研究的目的:
- 为了制造和表征基于聚乙烯块胺 (Pebax1074) 的混合矩阵膜 (MMM),将蒙莫里隆石 (MMT) 作为剂.
- 调查MMM含量,透压和温度对MMM的CO2/N2分离性能的影响.
- 为提高二氧化碳透性和选择性优化MMM组合.
主要方法:
- 制造具有不同MMT含量的Pebax/MMT MMM.
- 使用扫描电子显微镜 (SEM),FTIR光谱,X射线衍射 (XRD) 和热分析进行表征.
- 在不同的透压力和温度下进行气体分离性能测试.
主要成果:
- 均分散的MMT显著提高了MMM的热稳定性和结构紧性.
- 随着MMT含量增加,CO2的透性增加,而CO2/N2的选择性最初上升,然后下降.
- 6%的最佳MMT含量产生了最高的CO2/N2选择性120.3和CO2透性130.6的障碍.
结论:
- 蒙莫里隆石是一种有效的剂,可以提高基于Pebax的MMM的CO2/N2分离性能.
- 融入MMT会影响膜形态,热性质和气体传输机制.
- 开发的Pebax/MMT MMM显示了工业CO2分离应用的巨大潜力.
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