A conceptual evaluation of the use of Ca(OH)<inf>2</inf> for attaining carbon capture rates of 99% in the calcium looping process
Calcium looping (CaL), typically capable of reducing CO2 emissions by approximately 90%, is a technology well suited to capturing CO2 emissions from a wide array of industrial processes. An approach in which Ca(OH)2 is injected into the carbonator to increase the carbon capture efficiency of the CaL...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/377996 |
| Acceso en línea: | http://hdl.handle.net/10261/377996 https://api.elsevier.com/content/abstract/scopus_id/85208109786 |
| Access Level: | acceso abierto |
| Palabra clave: | Decarbonisation Calcium hydroxide Calcium looping http://metadata.un.org/sdg/7 http://metadata.un.org/sdg/9 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
| Sumario: | Calcium looping (CaL), typically capable of reducing CO2 emissions by approximately 90%, is a technology well suited to capturing CO2 emissions from a wide array of industrial processes. An approach in which Ca(OH)2 is injected into the carbonator to increase the carbon capture efficiency of the CaL process to 99% was evaluated in this study using a one-and-a-half-dimensional reactor model. The effect of several key parameters was considered, including the injection flow rate, injection elevation, and the formation rate of CO2 in the freeboard of the carbonator due to the combustion of char particles elutriated from the calciner. The main finding was that capture rates of 99% appear attainable, given that enough Ca(OH)2 is injected and that the injection occurs at a suitable location, i.e., the sorbent is allowed sufficient residence time in the reactor. |
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