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Lutyński, Marcin; Kielar, Jan; Gajda, Dawid; Mikeska, Marcel; Najser, Jan
Materials, 02/2023, Letnik: 16, Številka: 3Journal Article
The search for an effective, cost-efficient, and selective sorbent for COsub.2 capture technologies has been a focus of research in recent years. Many technologies allow efficient separation of COsub.2 from industrial gases; however, most of them (particularly amine absorption) are very energy-intensive processes not only from the point of view of operation but also solvent production. The aim of this study was to determine COsub.2 and CHsub.4 sorption capacity of pyrolyzed spruce wood under a wide range of pressures for application as an effective adsorbent for gas separation technology such as Pressure Swing Adsorption (PSA) or Temperature Swing Adsorption (TSA). The idea behind this study was to reduce the carbon footprint related to the transport and manufacturing of sorbent for the separation unit by replacing it with a material that is the direct product of pyrolysis. The results show that pyrolyzed spruce wood has a considerable sorption capacity and selectivity towards COsub.2 and CHsub.4. Excess sorption capacity reached 1.4 mmol·gsup.−1 for methane and 2.4 mmol·gsup.−1 for carbon dioxide. The calculated absolute sorption capacity was 1.75 mmol·gsup.−1 at 12.6 MPa for methane and 2.7 mmol·gsup.−1 at 4.7 MPa for carbon dioxide. The isotherms follow I type isotherm which is typical for microporous adsorbents.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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