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利用过程可操作性和逆向设计方法将基于膜的直接空气捕获（m-DAC）的材料特性与系统性能相联系

Connecting Material Characteristics with System Properties for Membrane-Based Direct Air Capture (m-DAC) Using Process Operability and Inverse Design Approaches.

作者信息

Gama Vitor, Roy Deepanjali, Lima Fernando V, Sanyal Oishi

机构信息

Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown, West Virginia 26506, United States.

出版信息

Ind Eng Chem Res. 2025 Apr 10;64(16):8375-8389. doi: 10.1021/acs.iecr.4c04553. eCollection 2025 Apr 23.

DOI:10.1021/acs.iecr.4c04553
PMID:40291388
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12022977/
Abstract

This paper presents a process modeling approach for a two-staged membrane-based direct air capture (m-DAC) process, considering material characteristics, membrane separation, and system properties. m-DAC is a negative emissions technology for capturing dilute CO from air. Its continuous and modular nature could reduce economic challenges compared to sorption-based processes, which require costly regeneration. Facilitated transport membranes, with specialized CO carriers, offer higher performance than traditional sorption-diffusion membranes. Their key properties-the CO apparent diffusion coefficient () and equilibrium constant ( )-determine membrane separation properties such as CO permeance and CO/N selectivity. This work maps these inputs to feasible output spaces such as for CO recovery, purity, and capture cost. Additionally, inverse design is used to determine the required membrane properties for target system outcomes. Overall, this study provides a framework for membrane researchers to design cost-effective, scalable m-DAC solutions.

摘要

本文提出了一种用于两阶段基于膜的直接空气捕获（m-DAC）过程的过程建模方法，该方法考虑了材料特性、膜分离和系统特性。m-DAC是一种用于从空气中捕获稀释CO₂的负排放技术。与需要昂贵再生的基于吸附的过程相比，其连续和模块化的性质可以减少经济挑战。具有特殊CO₂载体的促进传输膜比传统的吸附-扩散膜具有更高的性能。它们的关键特性——CO₂表观扩散系数（ ）和平衡常数（ ）——决定了膜的分离特性，如CO₂渗透率和CO₂/N₂选择性。这项工作将这些输入映射到可行的输出空间，如CO₂回收率、纯度和捕获成本。此外，逆向设计用于确定目标系统结果所需的膜特性。总体而言，本研究为膜研究人员提供了一个框架，以设计具有成本效益、可扩展的m-DAC解决方案。

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本文引用的文献

1
Process Operability Analysis of Membrane-Based Direct Air Capture for Low-Purity CO Production.用于低纯度一氧化碳生产的基于膜的直接空气捕获工艺可操作性分析
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2
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Membranes (Basel). 2024 Jan 24;14(2):30. doi: 10.3390/membranes14020030.
3
Facilitated transport membrane with functionalized ionic liquid carriers for CO/N, CO/O, and CO/air separations.
用于CO/N₂、CO/O₂和CO/空气分离的具有功能化离子液体载体的促进传递膜。
Nanoscale. 2022 Sep 15;14(35):12638-12650. doi: 10.1039/d2nr03214g.
4
Models for Facilitated Transport Membranes: A Review.促进传输膜模型综述
Membranes (Basel). 2019 Feb 2;9(2):26. doi: 10.3390/membranes9020026.
5
Advancing adsorption and membrane separation processes for the gigaton carbon capture challenge.推进吸附和膜分离工艺以应对千兆吨级碳捕获挑战。
Annu Rev Chem Biomol Eng. 2014;5:479-505. doi: 10.1146/annurev-chembioeng-060713-040100. Epub 2014 Apr 3.