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Updated: Jul 25, 2025

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从C₂H₂和CO₂从C₂H₄中深度去除痕迹C₂和CO₂,使用定制的交换mordenite

Hongwei Chen¹, Binyu Wang², Bin Zhang³

¹College of Chemical Engineering and Technology, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology Taiyuan 030024 China lilibo@tyut.edu.cn chenhongwei3197@hotmail.com.

Chemical science

|June 30, 2023

概括

这项研究引入了一种新型的K-mordenite热石,用于高效的乙烯净化. 这种具有成本效益的吸附剂通过精确控制扩散通道来实现高聚合物级乙烯的高生产率.

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:

使用多孔材料的吸附分离提供了节能高效的/烯分离.
从乙烯 (C2H4) 中深度去除微量乙烯 (C2H2) 和二氧化碳 (CO2) 仍然是商业吸附剂的重大挑战.

研究的目的:

开发一种低成本,高效的吸附剂,用于从三元混合物中深度净化乙烯.
调查特定阴离子放置在控制选择性吸附的化物扩散通道中的作用.

主要方法:

合成和表征无机金属阴离子介导的摩登石 (MOR) 焦化物.
实验性吸附研究和计算模拟来分析扩散控制机制.
从CO2/C2H2/C2H4混合物中深度净化乙烯的K-MOR性能测试.

主要成果:

K-mordenite (K-MOR) 焦化物在乙烯的深度净化中表现出了卓越的性能.
从三元CO2/C2H2/C2H4混合物中获得高聚合物级乙烯生产率1742 L kg-1.
具体的位置和K+的分布有效地控制了扩散通道,作为"守门员".

结论:

K-MOR热带石为工业轻型碳化合物吸附和净化提供了一个有前途且具有成本效益的解决方案.
阴离子介导的扩散控制机制为设计用于气体分离的先进热石开辟了新的途径.
这种方法促进了高纯度乙烯的生产,这对于聚合过程至关重要.

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