Application-specific thermodynamic favorability zones for direct air capture of carbon dioxide
| Autor: | Haley A. Petersen, Oana R. Luca |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Work (thermodynamics)
Air stream Sorbent Air capture General Physics and Astronomy Thermodynamics Sorption 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Carbon dioxide Application specific Environmental science Physical and Theoretical Chemistry 0210 nano-technology Data scrubbing |
| Zdroj: | Physical chemistry chemical physics : PCCP. 23(22) |
| ISSN: | 1463-9084 |
| Popis: | An increased interest in the capture and conversion of carbon dioxide into valuable chemical products is fueled by impending societal and ecological consequences of increasing CO2 concentration in the atmosphere. This work utilizes Lackner's thermodynamic calculations for the capture of carbon dioxide from the atmosphere based on a single sorbent approximation to map thermodynamic favorability zones compatible with various applications. When a minimal amount of CO2 is removed from the air stream, −4.64 kcal mol−1 is estimated as the maximum free energy of binding for sorption to occur in atmospheric conditions at 1 atm pressure and room temperature. When complete scrubbing of CO2 from a dilute source is desired, a more negative free energy of sorption is needed, with an estimated −10.92 kcal mol−1 required for close to complete CO2 removal from the stream. |
| Databáze: | OpenAIRE |
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