![]() This has led to the need for a more progressive approach, called negative emission technologies. Unfortunately, it has become apparent that the 1.5 ☌ scenario cannot be achieved simply by reducing CO 2 emissions to the atmosphere. Drastic reductions in CO 2 emissions into the atmosphere are unavoidable to meet the 1.5 ☌ scenario recommended by the Intergovernmental Panel on Climate Change. Finally, we discuss the direction of future membrane development for DAC.Ĭarbon dioxide emissions into the atmosphere are the main reason for climate change. Based on the analysis, we propose the target membrane separation performance required for m-DAC with competitive energy expenses. The multistage membrane separation process was employed in process simulation to estimate the energy requirements for m-DAC. In this paper, we discuss the potential of m-DAC considering the state-of-the-art performance of organic polymer membranes. These simulations offer a credible assessment of the feasibility of membrane-based DAC (m-DAC). The simulation of chemical processes has been well established and is commonly used for the development and performance assessment of industrial chemical processes. ![]() Recently, there have been reports that show ultrahigh CO 2 permeances in gas separation membranes and thus membrane separation could be a potential new technology for DAC in addition to sorbent-based CO 2 capture. Current DAC technologies consider only sorbent-based systems. ![]() Direct CO 2 capture from the air, so-called direct air capture (DAC), has become inevitable to reduce the concentration of CO 2 in the atmosphere. ![]()
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