吸附剂
烟气
工艺工程
空气分离
膜
碳足迹
烟道
膜技术
计算机科学
环境科学
大气(单位)
气体分离
吸附
温室气体
工程类
废物管理
化学
氧气
物理
气象学
生物化学
生态学
有机化学
生物
作者
Pavlo Ignatusha,Haiqing Lin,Noe Kapuscinsky,Ludmila Scoles,Weiguo Ma,Bussaraporn Patarachao,Naiying Du
出处
期刊:Membranes
[MDPI AG]
日期:2024-01-24
卷期号:14 (2): 30-30
被引量:1
标识
DOI:10.3390/membranes14020030
摘要
Direct air capture (DAC) is an emerging negative CO2 emission technology that aims to introduce a feasible method for CO2 capture from the atmosphere. Unlike carbon capture from point sources, which deals with flue gas at high CO2 concentrations, carbon capture directly from the atmosphere has proved difficult due to the low CO2 concentration in ambient air. Current DAC technologies mainly consider sorbent-based systems; however, membrane technology can be considered a promising DAC approach since it provides several advantages, e.g., lower energy and operational costs, less environmental footprint, and more potential for small-scale ubiquitous installations. Several recent advancements in validating the feasibility of highly permeable gas separation membrane fabrication and system design show that membrane-based direct air capture (m-DAC) could be a complementary approach to sorbent-based DAC, e.g., as part of a hybrid system design that incorporates other DAC technologies (e.g., solvent or sorbent-based DAC). In this article, the ongoing research and DAC application attempts via membrane separation have been reviewed. The reported membrane materials that could potentially be used for m-DAC are summarized. In addition, the future direction of m-DAC development is discussed, which could provide perspective and encourage new researchers’ further work in the field of m-DAC.
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