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Direct Air Carbon Capture Using Metal-Organic Frameworks (MOFs): Techno-Economic Performance of Temperature Vacuum Swing Adsorption (TVSA) Systems

Direct Air Carbon Capture (DACC) technology is used to remove CO₂ directly from the atmosphere, helping tackle climate change and excessive greenhouse gas emissions efficiently. In this study, a techno-economic analysis of DACC has been carried out, including its working mechanisms, energy needs, an...

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Main Author: Ali, Haider (author)
Other Authors: Uddin, Duraid (author), Naqvi, Asad A. (author), Naeem, Umair (author), Akhtar, Nomaan (author), Shams, Saqib (author), Karim, Ali (author)
Format: article
Language:Spanish
Published: 2025
Subjects:
Captura directa de carbono en aire
adsorción por oscilación de temperatura y vacío
estructura metalorgánica
Direct Air Carbon Capture
Temperature Vacuum Swing Adsorption
Metal-Organic Framework
Captura direta de carbono no ar
adsorção por oscilação de temperatura e vácuo
estrutura metal-orgânica
Online Access:http://revistas.um.edu.uy/index.php/ingenieria/article/view/1566
https://hdl.handle.net/20.500.12806/2738
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Summary:Direct Air Carbon Capture (DACC) technology is used to remove CO₂ directly from the atmosphere, helping tackle climate change and excessive greenhouse gas emissions efficiently. In this study, a techno-economic analysis of DACC has been carried out, including its working mechanisms, energy needs, and costs, as well as a summary of the current research status. This research compares two leading metal-organic frameworks (MOFs) — MIL-101(Cr)-PEI-800 and mmen-Mg₂(dobpdc) — focusing on their energy consumption, CO₂ adsorption, and cost. This study investigates the performance of these MOFs in a temperature vacuum swing adsorption (TVSA) process, which cyclically varies temperature and pressure to capture CO₂ and regenerate adsorbents. Among all materials, mmen-Mg₂(dobpdc) achieves the best performance with a much higher capacity and a favourable nonlinear isotherm shape, indicating significantly improved efficiency and lower energy input. DACC systems based on advanced MOFs hold great promise for minimizing non-point source emissions and should thus be considered essential components of a climate change mitigation strategy. This study contributes to direct future research and development toward more efficient and cost-effective MOFs in DACC applications.

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