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| 001 | 904183 | ||
| 005 | 20240712112913.0 | ||
| 024 | 7 | _ | |a 10.1038/s41560-020-00771-9 |2 doi |
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| 100 | 1 | _ | |a Deutz, Sarah |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Life-cycle assessment of an industrial direct air capture process based on temperature–vacuum swing adsorption |
| 260 | _ | _ | |a London |c 2021 |b Nature Publishing Group |
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| 520 | _ | _ | |a Current climate targets require negative carbon dioxide (CO2) emissions. Direct air capture is a promising negative emission technology, but energy and material demands lead to trade-offs with indirect emissions and other environmental impacts. Here, we show by life-cycle assessment that the commercial direct air capture plants in Hinwil and Hellisheiði operated by Climeworks can already achieve negative emissions today, with carbon capture efficiencies of 85.4% and 93.1%. The climate benefits of direct air capture, however, depend strongly on the energy source. When using low-carbon energy, as in Hellisheiði, adsorbent choice and plant construction become more important, inducing up to 45 and 15 gCO2e per kilogram CO2 captured, respectively. Large-scale deployment of direct air capture for 1% of the global annual CO2 emissions would not be limited by material and energy availability. However, the current small-scale production of amines for the adsorbent would need to be scaled up by more than an order of magnitude. Other environmental impacts would increase by less than 0.057% when using wind power and by up to 0.30% for the global electricity mix forecasted for 2050. Energy source and efficiency are essential for direct air capture to enable both negative emissions and low-carbon fuels. |
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| 700 | 1 | _ | |a Bardow, André |0 P:(DE-Juel1)172023 |b 1 |e Corresponding author |u fzj |
| 773 | _ | _ | |a 10.1038/s41560-020-00771-9 |g Vol. 6, no. 2, p. 203 - 213 |0 PERI:(DE-600)2847369-3 |n 2 |p 203 - 213 |t Nature energy |v 6 |y 2021 |x 2058-7546 |
| 856 | 4 | _ | |y Published on 2021-02-04. Available in OpenAccess from 2021-08-04. |u https://juser.fz-juelich.de/record/904183/files/Life%20cycle%20assessment%20of%20an%20industrial%20direct%20air%20capture%20process%20based%20on%20temperature-vacuum%20swing%20adsorption.pdf |
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