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https://doi.org/10.21256/zhaw-29474| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Investigation of CO2-sorption characteristics of readily available solid materials for indoor direct air capturing |
| Authors: | Baus, Lukas Nehr, Sascha Maeda, Nobutaka |
| et. al: | No |
| DOI: | 10.1155/2023/8821044 10.21256/zhaw-29474 |
| Published in: | Indoor Air |
| Volume(Issue): | 2023 |
| Issue: | 8821044 |
| Issue Date: | 14-Jul-2023 |
| Publisher / Ed. Institution: | Hindawi |
| ISSN: | 1600-0668 |
| Language: | English |
| Subjects: | CO2-Sorption; Indoor direct air capturing; Direct air capturing (DAC) |
| Subject (DDC): | 620.11: Engineering materials |
| Abstract: | Direct air capturing (DAC) is an energy demanding process for CO2-removal from air. Ongoing research focuses on the potential of indoor air as DAC-feed to profit from currently unused energetic synergies between DAC and the built environment. In thiswork, we investigated the performance of three different readily available, solid DAC-adsorbers under typical indoor environmental conditions of 16-25°C, 25-60% relative humidity (RH), and CO2-concentrations of less than 800 ppm above atmospheric concentrations. The measured mass-specific CO2-adsorption capacities of K2CO3-impregnated activated carbon, polyethylenimine-snow (PEI-snow), and polyethylenimine (PEI) on silica amount to 6:5±0:3 mg g−1, 52:9±4:9 mg g−1, and 56:9±4:2 mg g−1, respectively. Among the three investigated adsorber materials, PEI on silica is the most promising candidate for DAC-applications as its synthesis is rather simple, the CO2-desorption is feasible at moderate conditions of about 80°C at 100 mbar, and the competing co-adsorption of water does not strongly affect the CO2-adsorption under the investigated experimental conditions. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/29474 |
| Fulltext version: | Published version |
| License (according to publishing contract): | CC BY 4.0: Attribution 4.0 International |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Materials and Process Engineering (IMPE) |
| Appears in collections: | Publikationen School of Engineering |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 2023_Baus-etal_CO2-sorption-characteristics-of-solid-materials.pdf | 565.88 kB | Adobe PDF |  View/Open |
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Baus, L., Nehr, S., & Maeda, N. (2023). Investigation of CO2-sorption characteristics of readily available solid materials for indoor direct air capturing. Indoor Air, 2023(8821044). https://doi.org/10.1155/2023/8821044
Baus, L., Nehr, S. and Maeda, N. (2023) ‘Investigation of CO2-sorption characteristics of readily available solid materials for indoor direct air capturing’, Indoor Air, 2023(8821044). Available at: https://doi.org/10.1155/2023/8821044.
L. Baus, S. Nehr, and N. Maeda, “Investigation of CO2-sorption characteristics of readily available solid materials for indoor direct air capturing,” Indoor Air, vol. 2023, no. 8821044, Jul. 2023, doi: 10.1155/2023/8821044.
BAUS, Lukas, Sascha NEHR und Nobutaka MAEDA, 2023. Investigation of CO2-sorption characteristics of readily available solid materials for indoor direct air capturing. Indoor Air. 14 Juli 2023. Bd. 2023, Nr. 8821044. DOI 10.1155/2023/8821044
Baus, Lukas, Sascha Nehr, and Nobutaka Maeda. 2023. “Investigation of CO2-Sorption Characteristics of Readily Available Solid Materials for Indoor Direct Air Capturing.” Indoor Air 2023 (8821044). https://doi.org/10.1155/2023/8821044.
Baus, Lukas, et al. “Investigation of CO2-Sorption Characteristics of Readily Available Solid Materials for Indoor Direct Air Capturing.” Indoor Air, vol. 2023, no. 8821044, July 2023, https://doi.org/10.1155/2023/8821044.
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