http://iopscience.iop.org/article/10.1088/1748-9326/aa6de5
Environmental Research Letters <http://iopscience.iop.org/journal/1748-9326> ACCEPTED MANUSCRIPT • OPEN ACCESS Assessment of reasonable opportunities for direct air capture Jennfer Wilcox1, Peter Psarras2 and Simona Liguori3 Accepted Manuscript online 19 April 2017 • ©2017 IOP Publishing Ltd What is an Accepted Manuscript? <http://ioppublishing.org/article-versions/> Accepted Manuscript PDF <http://iopscience.iop.org/article/10.1088/1748-9326/aa6de5/pdf> - [image: Article has an altmetric score of 2] <https://www.altmetric.com/details.php?domain=iopscience.iop.org&citation_id=19783229> - Turn on MathJax <http://iopscience.iop.org/article/10.1088/1748-9326/aa6de5#> - Share this article <?subject=Assessment%20of%20reasonable%20opportunities%20for%20direct%20air%20capture%20%20&body=Assessment%20of%20reasonable%20opportunities%20for%20direct%20air%20capture%20%20%20-%20https://doi.org/10.1088/1748-9326/aa6de5> <http://www.facebook.com/sharer.php?u=https://doi.org/10.1088/1748-9326/aa6de5> <http://twitter.com/share?url=https://doi.org/10.1088/1748-9326/aa6de5&text=Assessment%20of%20reasonable%20opportunities%20for%20direct%20air%20capture%20%20&via=IOPscience> <https://plus.google.com/share?url=https://doi.org/10.1088/1748-9326/aa6de5> <http://www.citeulike.org/posturl?url=https://doi.org/10.1088/1748-9326/aa6de5> <http://www.mendeley.com/import/?doi=10.1088/1748-9326/aa6de5> Article information <http://iopscience.iop.org/article/10.1088/1748-9326/aa6de5#> Abstract This work explores the possibility of using CO2 captured directly from the atmosphere for several applications that require low to moderate purities. Comparisons of the minimum and real work for separating CO2 from air, natural gas combined cycle flue gas and pulverized coal combustion flue gas are proposed and discussed. Though it is widely accepted that the separation of CO2 from air to high purity is more energy-intensive than separating CO2 from more concentrated sources, this study presents select cases where the separation of CO2 from air to low and moderate purities is energetically equivalent with the work required for flue gas CO2 separation. These energetically-competitive cases are shown to be dependent on the percent capture and final CO2 purity desired. In particular, several technologies can be considered as CO2 utilization opportunities in which dilute CO2 may be an adequate feedstock. Specifically, this study is focused on enhanced oil recovery and microalgae cultivation technologies, which appear to be the most beneficial near-term applications for utilization of CO2 from direct air capture -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to geoengineering+unsubscr...@googlegroups.com. To post to this group, send email to geoengineering@googlegroups.com. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
