{"id":"doi:10.1038/s41428-020-00429-z","kind":"article","title":"A new strategy for membrane-based direct air capture","authors":["Shigenori Fujikawa","Roman Selyanchyn","Toyoki Kunitake"],"author_count":3,"year":2020,"published":"2020-10-15","venue":"Polymer Journal","cited_by":179,"doi":"10.1038/s41428-020-00429-z","arxiv_id":null,"nct_id":null,"source_url":"https://doi.org/10.1038/s41428-020-00429-z","archive_url":"https://space-kitty.com/papers/doi:10.1038/s41428-020-00429-z","updated":null,"pmid":null,"pmcid":null,"openalex_id":"W3091857935","pdf_url":"https://www.nature.com/articles/s41428-020-00429-z.pdf","abstract":"Abstract Direct CO2 capture from the air, so-called direct air capture (DAC), has become inevitable to reduce the concentration of CO2 in the atmosphere. Current DAC technologies consider only sorbent-based systems. Recently, there have been reports that show ultrahigh CO2 permeances in gas separation membranes and thus membrane separation could be a potential new technology for DAC in addition to sorbent-based CO2 capture. The simulation of chemical processes has been well established and is commonly used for the development and performance assessment of industrial chemical processes. These simulations offer a credible assessment of the feasibility of membrane-based DAC (m-DAC). In this paper, we discuss the potential of m-DAC considering the state-of-the-art performance of organic polymer membranes. The multistage membrane separation process was employed in process simulation to estimate the energy requirements for m-DAC. Based on the analysis, we propose the target membrane separation performance required for m-DAC with competitive energy expenses. Finally, we discuss the direction of future membrane development for DAC.","abstract_license":"CC-BY (publisher license, via OpenAlex)","license":"cc-by","is_open_access":true,"retracted":false,"peer_reviewed":null,"categories":["Carbon Dioxide Capture Technologies"],"details":null,"provenance":"openalex","attribution":"Abstract of \"A new strategy for membrane-based direct air capture\" by Shigenori Fujikawa, Roman Selyanchyn, Toyoki Kunitake, https://doi.org/10.1038/s41428-020-00429-z, used under its Creative Commons Attribution license (CC-BY); markup removed, otherwise unmodified.","topics":[{"slug":"carbon-removal","name":"Carbon Dioxide Removal","domain_slug":"energy"}],"cited_in_dossiers":[]}