Projects per year
Abstract
The current concentration of carbon dioxide in the atmosphere demands for development of negative emission solutions such as direct carbon dioxide removal from the atmosphere (air capture). Many well-established processes can remove carbon dioxide from the atmosphere but the real technological challenge consists of concentrating and compressing carbon dioxide at the conditions for long term geological storage, with efficient use of non-fossil energy sources. A thermally-driven, negative-carbon adsorption process for capture, purification and compression of carbon dioxide from air is proposed. The process is based on a series of batch adsorption compressors of decreasing size to deliver a compressed carbon dioxide stream to a final storage. Thermodynamic analysis of the process shows that, by exploiting the equilibrium properties of commercial and non-commercial materials, carbon dioxide can be produced at specifications appropriate for geological storage. By operating the process with zeolite 13X at regeneration temperature of 95°C, a final storage vessel can be pressurized with carbon dioxide at purities >0.95 mol fraction and specific energy consumption <2.2 MJth molCO2–1. Tailored materials provide a step-change in performance. When the process operates with zeolite NaETS-4, carbon dioxide can be purified at values >0.97 mol fraction.
Original language | English |
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Pages (from-to) | 1158-1168 |
Number of pages | 11 |
Journal | Energy |
Volume | 162 |
Early online date | 14 Sep 2018 |
DOIs | |
Publication status | Published - 1 Nov 2018 |
Keywords
- air capture
- negative emissions technology
- direct air capture
- ATMOSPHERIC CARBON-DIOXIDE
- atmospheric carbon capture
Fingerprint
Dive into the research topics of 'Adsorption artificial tree for atmospheric carbon dioxide capture, purification and compression'. Together they form a unique fingerprint.Projects
- 1 Finished
Research output
- 2 Article
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Pure and binary adsorption of carbon dioxide and nitrogen on AQSOA FAM Z02
Charalambous, C., Santori, G., Villarasa-Garcia, E., Bastos-Neto, M., Cavalcante, C. & Brandani, S., 2018, In: Journal of Chemical and Engineering Data.Research output: Contribution to journal › Article › peer-review
Open AccessFile -
Thermodynamics of thermally-driven adsorption compression
Santori, G. & Luberti, M., Dec 2016, In: Sustainable Materials and Technologies. 10, p. 1-9 9 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile
Press / Media
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System to rid space station of astronaut exhalations inspires Earth-based CO2 removal
Giulio Santori & Stefano Brandani
12/11/18 → 13/12/18
4 items of Media coverage
Press/Media: Project or Organisational News Item