Magnetic Framework Composites for Low Concentration Methane Capture,Industrial & Engineering Chemistry Research

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Magnetic Framework Composites for Low Concentration Methane Capture
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-04-24 , DOI: 10.1021/acs.iecr.8b00810
Muhammad Munir Sadiq _{1,

2} , Marta Rubio-Martinez ₂ , Farnaz Zadehahmadi ₁ , Kiyonori Suzuki ₃ , Matthew R. Hill _{1,

2}

Affiliation

This study proposes a simple and energy efficient technique for methane (CH₄) capture from low concentration emission sources. An extrusion-based process was used to fabricate magnetic framework composites (MFCs) from a metal organic framework (MOF), aluminum fumarate, and MgFe₂O₄ magnetic nanoparticles (MNP). Methane uptake for MFCs with different MNP loading at 1 bar and 300 K revealed a high methane uptake of up to 18.2 cm³ g^–1. To regenerate the MFCs, a magnetic induction swing adsorption (MISA) process was applied. A working capacity of 100% was achieved for the MFC over 10 adsorption–desorption cycles with an average of 6 min per cycle for the regeneration step. The ability to access 100% of the adsorbed CH₄ in the MFC with rapid and localized heating achieved with the MISA process potentially provides an energy efficient technique for CH₄ capture and reuse from low concentration sources.

中文翻译：

用于低浓度甲烷捕集的磁性骨架复合材料

这项研究提出了一种从低浓度排放源中捕获甲烷（CH ₄）的简单而节能的技术。基于挤压的过程用于从金属有机骨架（MOF），富马酸铝和MgFe ₂ O ₄磁性纳米粒子（MNP）制备磁性骨架复合材料（MFC ）。在1 bar和300 K下具有不同MNP负载的MFC的甲烷吸收量表明，甲烷吸收量高达18.2 cm ³ g ^–1。为了再生MFC，应用了磁感应摆动吸附（MISA）工艺。在10个吸附-解吸循环中，MFC的工作能力达到100％，再生步骤平均每个循环6分钟。通过MISA工艺实现的快速局部加热，可以获取MFC中100％吸附的CH ₄的能力，可能为从低浓度来源捕获CH ₄和再利用提供了一种节能技术。

更新日期：2018-04-24

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