dc.creator | Baena-Moreno, Francisco M. | es |
dc.creator | Rodríguez Galán, Mónica | es |
dc.creator | Vega Borrero, Fernando | es |
dc.creator | Ramírez Reina, Tomás | es |
dc.creator | Vilches Arenas, Luis Francisco | es |
dc.creator | Navarrete Rubia, Benito | es |
dc.date.accessioned | 2021-04-19T12:09:28Z | |
dc.date.available | 2021-04-19T12:09:28Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Baena Moreno, F.M., Rodríguez Galán, M., Vega Borrero, F., Reina, T.R., Vilches Arenas, L.F. y Navarrete Rubia, B. (2018). Regeneration of Sodium Hydroxide from a Biogas Upgrading Unit through the Synthesis of Precipitated Calcium Carbonate: An Experimental Influence Study of Reaction Parameters. Processes, 6 (11) | |
dc.identifier.issn | 2227-9717 | es |
dc.identifier.uri | https://hdl.handle.net/11441/107316 | |
dc.description.abstract | This article presents a regeneration method of a sodium hydroxide (NaOH) solution from a
biogas upgrading unit through calcium carbonate (CaCO3) precipitation as a valuable by-product,
as an alternative to the elevated energy consumption employed via the physical regeneration process.
The purpose of this work was to study the main parameters that may affect NaOH regeneration using
an aqueous sodium carbonate (Na2CO3) solution and calcium hydroxide (Ca(OH)2) as reactive agent
for regeneration and carbonate slurry production, in order to outperform the regeneration efficiencies
reported in earlier works. Moreover, Raman spectroscopy and Scanning Electron Microscopy (SEM)
were employed to characterize the solid obtained. The studied parameters were reaction time,
reaction temperature, and molar ratio between Ca(OH)2 and Na2CO3. In addition, the influence
of small quantities of NaOH at the beginning of the precipitation process was studied. The results
indicate that regeneration efficiencies between 53%–97% can be obtained varying the main parameters
mentioned above, and also both Raman spectroscopy and SEM images reveal the formation of a
carbonate phase in the obtained solid. These results confirmed the technical feasibility of this biogas
upgrading process through CaCO3 production. | es |
dc.format | application/pdf | es |
dc.format.extent | 12 p. | es |
dc.language.iso | eng | es |
dc.publisher | MDPI | es |
dc.relation.ispartof | Processes, 6 (11) | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | carbon capture and utilization | es |
dc.subject | biogas upgrading | es |
dc.subject | calcium carbonate precipitation | es |
dc.subject | chemical absorption | es |
dc.title | Regeneration of Sodium Hydroxide from a Biogas Upgrading Unit through the Synthesis of Precipitated Calcium Carbonate: An Experimental Influence Study of Reaction Parameters | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería Química y Ambiental | es |
dc.relation.publisherversion | https://www.mdpi.com/search?q=Regeneration+of+Sodium+Hydroxide+from+a+Biogas+Upgrading+Unit&journal=processes | es |
dc.identifier.doi | 10.3390/pr6110205 | es |
dc.contributor.group | Universidad de Sevilla. V PPIT-US | es |
dc.journaltitle | Processes | es |
dc.publication.volumen | 6 | es |
dc.publication.issue | 11 | es |
dc.identifier.sisius | 21544707 | |