Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separation

Bibliographic Details
Main Author: Sosa, Julio E.
Publication Date: 2020
Other Authors: Malheiro, Carine, Ribeiro, Rui P. P. L., Castro, Paulo J., Piñeiro, Manuel M., Araújo, João M. M., Plantier, Frédéric, Mota, José P. B., Pereiro, Ana B.
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10362/110524
Summary: Funding of the KET4F-Gas project, SOE2/P1/P0823, co-funded by the Interreg Sudoe Program through the European Regional Development Fund (ERDF). A.B. Pereiro and J.M.M. Araújo acknowledge FCT/MCTES for financial support through IF/00190/2014 contract and IF/00210/2014 contract, respectively. Rui Ribeiro acknowledges financial support through the Norma Transitória DL 57/2016 Program Contract (FCT/MCTES). This work was also supported by the Associate Laboratory for Green Chemistry ? LAQV, which is financed by national funds from FCT/MCTES (UID/QUI/50006/2019).
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spelling Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separationactivated carbonsadsorptionadsorption equilibriumfluorinated gasesBiotechnologyChemical Engineering(all)Renewable Energy, Sustainability and the EnvironmentFuel TechnologyWaste Management and DisposalPollutionOrganic ChemistryInorganic ChemistrySDG 7 - Affordable and Clean EnergyFunding of the KET4F-Gas project, SOE2/P1/P0823, co-funded by the Interreg Sudoe Program through the European Regional Development Fund (ERDF). A.B. Pereiro and J.M.M. Araújo acknowledge FCT/MCTES for financial support through IF/00190/2014 contract and IF/00210/2014 contract, respectively. Rui Ribeiro acknowledges financial support through the Norma Transitória DL 57/2016 Program Contract (FCT/MCTES). This work was also supported by the Associate Laboratory for Green Chemistry ? LAQV, which is financed by national funds from FCT/MCTES (UID/QUI/50006/2019).Background: The increasing awareness of the release of fluorinated gases (F-gases) into the atmosphere is instigating the development of techniques to capture them from refrigerants. In this work, the adsorption of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a) on four different activated carbons (ACs) is studied. Additionally, the selectivity of the ACs for the components of commercial refrigerants, R-410A and R-407F, is evaluated. Results: The estimation of the density of the adsorbed phase as a function of temperature allows the experimental fractional loading of each F-gas on any of the ACs to be correlated as a temperature-independent function of its reduced pressure, which is described by Tóth or dual-site Langmuir equations or as an exponential function of the adsorption potential under the framework of the Adsorption Potential theory (APT). It is shown that the APT can be generalized with excellent accuracy to the systems studied if an adsorbate-dependent affinity coefficient is used as a shifting factor to bring the characteristic curves of all F-gases into a single one for each AC. R-32 is the F-gas most adsorbed by all adsorbents, followed by R-134a, and by R-125. All ACs are selective for R-125 in R-410A commercial refrigerants, especially at lower pressures. Additionally, all ACs are selective for R-125 and R-134a over R-32 in R407-F commercial refrigerant. Conclusion: The utilization of ACs for adsorption of the three most used F-gases is promising. By selecting ACs with different porous characteristics, it is possible to evaluate their influence on the selectivity for the components of different commercial refrigerants.DQ - Departamento de QuímicaLAQV@REQUIMTERUNSosa, Julio E.Malheiro, CarineRibeiro, Rui P. P. L.Castro, Paulo J.Piñeiro, Manuel M.Araújo, João M. M.Plantier, FrédéricMota, José P. B.Pereiro, Ana B.2022-03-19T01:31:11Z2020-07-012020-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/octet-streamhttp://hdl.handle.net/10362/110524eng0268-2575PURE: 17527169https://doi.org/10.1002/jctb.6371info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T17:49:56Zoai:run.unl.pt:10362/110524Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T17:21:12.008902Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separation
title Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separation
spellingShingle Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separation
Sosa, Julio E.
activated carbons
adsorption
adsorption equilibrium
fluorinated gases
Biotechnology
Chemical Engineering(all)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Waste Management and Disposal
Pollution
Organic Chemistry
Inorganic Chemistry
SDG 7 - Affordable and Clean Energy
title_short Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separation
title_full Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separation
title_fullStr Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separation
title_full_unstemmed Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separation
title_sort Adsorption of fluorinated greenhouse gases on activated carbons: evaluation of their potential for gas separation
author Sosa, Julio E.
author_facet Sosa, Julio E.
Malheiro, Carine
Ribeiro, Rui P. P. L.
Castro, Paulo J.
Piñeiro, Manuel M.
Araújo, João M. M.
Plantier, Frédéric
Mota, José P. B.
Pereiro, Ana B.
author_role author
author2 Malheiro, Carine
Ribeiro, Rui P. P. L.
Castro, Paulo J.
Piñeiro, Manuel M.
Araújo, João M. M.
Plantier, Frédéric
Mota, José P. B.
Pereiro, Ana B.
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv DQ - Departamento de Química
LAQV@REQUIMTE
RUN
dc.contributor.author.fl_str_mv Sosa, Julio E.
Malheiro, Carine
Ribeiro, Rui P. P. L.
Castro, Paulo J.
Piñeiro, Manuel M.
Araújo, João M. M.
Plantier, Frédéric
Mota, José P. B.
Pereiro, Ana B.
dc.subject.por.fl_str_mv activated carbons
adsorption
adsorption equilibrium
fluorinated gases
Biotechnology
Chemical Engineering(all)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Waste Management and Disposal
Pollution
Organic Chemistry
Inorganic Chemistry
SDG 7 - Affordable and Clean Energy
topic activated carbons
adsorption
adsorption equilibrium
fluorinated gases
Biotechnology
Chemical Engineering(all)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Waste Management and Disposal
Pollution
Organic Chemistry
Inorganic Chemistry
SDG 7 - Affordable and Clean Energy
description Funding of the KET4F-Gas project, SOE2/P1/P0823, co-funded by the Interreg Sudoe Program through the European Regional Development Fund (ERDF). A.B. Pereiro and J.M.M. Araújo acknowledge FCT/MCTES for financial support through IF/00190/2014 contract and IF/00210/2014 contract, respectively. Rui Ribeiro acknowledges financial support through the Norma Transitória DL 57/2016 Program Contract (FCT/MCTES). This work was also supported by the Associate Laboratory for Green Chemistry ? LAQV, which is financed by national funds from FCT/MCTES (UID/QUI/50006/2019).
publishDate 2020
dc.date.none.fl_str_mv 2020-07-01
2020-07-01T00:00:00Z
2022-03-19T01:31:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/110524
url http://hdl.handle.net/10362/110524
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0268-2575
PURE: 17527169
https://doi.org/10.1002/jctb.6371
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