Publication
Vacuum pressure swing adsorption process using binder-free K(23)Y zeolite for post-combustion CO2 capture
| dc.contributor.author | Aly, Ezzeldin | |
| dc.contributor.author | Zafanelli, Lucas F.A.S. | |
| dc.contributor.author | Henrique, Adriano | |
| dc.contributor.author | Gleichmann, Kristin | |
| dc.contributor.author | Rodrigues, Alírio | |
| dc.contributor.author | Freitas, Francisco A. da Silva | |
| dc.contributor.author | Silva, José A.C. | |
| dc.date.accessioned | 2025-01-23T14:41:44Z | |
| dc.date.available | 2025-01-23T14:41:44Z | |
| dc.date.issued | 2025 | |
| dc.description.abstract | This study presents the development of a Vacuum Pressure Swing Adsorption (VPSA) process utilizing binder- free K(23)Y zeolite for post-combustion CO2 capture. The ion-exchanged K(23)Y zeolite, characterized by a high CO2 selectivity of 97 over N2 at 10 kPa and an adsorption capacity exceeding 7 mol⋅kg− 1 350 kPa at 306 K, was evaluated under various operational conditions to optimize the VPSA process. Experimental and simulated breakthrough analyses provided essential data for adsorption equilibrium and sorption kinetics, which were modelled using Aspen Adsorption software. Optimization of key cycle steps, including pressurization, adsorption, blowdown, and evacuation, revealed that Light Product Pressurization significantly enhances process performance. Parametric studies demonstrated that reducing intermediate pressure from 0.2 bar to 0.07 bar increased CO2 purity from 84 % to 93 %, though it decreased recovery from around 99 % to 78 %, revealing a key trade-off. Similarly, extending adsorption time beyond 86 s enabled CO2 purity to exceed 90 %, though recovery decreased slightly. Under optimal conditions, the VPSA process achieved a CO2 purity and recovery of ~90 % and productivity of 0.367 molCO2⋅m− 3ads⋅s− 1 , with specific energy consumption of 144 kWh per ton of CO2 captured. The study demonstrates the viability of a simple 4-step VPSA configuration with binder-free K(23)Y, offering competitive performance and low energy consumption. | pt_PT |
| dc.description.sponsorship | This work was supported by national funds through FCT/MCTES (PIDDAC): (1) project PTDC/EQU-EPQ/0467/2020 (DOI:10.54499/ PTDC/EQU-EPQ/0467/2020); (2) CIMO, UIDB/00690/2020 (DOI: 10.54499/UIDB/00690/2020) and SusTEC, LA/P/0007/2020 (DOI: 10.54499/LA/P/0007/2020); (3) CICECO-Aveiro Institute of Materials, UIDP/50011/2020 (DOI 10.54499/UIDP/50011/2020) & LA/P/0006/ 2020 (DOI 10.54499/LA/P/0006/2020. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Aly, Ezzeldin; Zafanelli, Lucas F.A.S.; Henrique, Adriano; Gleichmann, Kristin; Rodrigues, Alírio; Freitas, Francisco A. da Silva; Silva, José A.C. (2025). Vacuum pressure swing adsorption process using binder-free K(23)Y zeolite for post-combustion CO2 capture. Separation and Purification Technology. ISSN 1383-5866. 361:3, p. 1-14 | pt_PT |
| dc.identifier.doi | 10.1016/j.seppur.2025.131519 | pt_PT |
| dc.identifier.eissn | 1873-3794 | |
| dc.identifier.issn | 1383-5866 | |
| dc.identifier.uri | http://hdl.handle.net/10198/31066 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Elsevier | pt_PT |
| dc.relation | Green Hydrogen Separation from Natural Gas Grids by Adsorption Processes with MOFs | |
| dc.relation | Mountain Research Center | |
| dc.relation | Associate Laboratory for Sustainability and Tecnology in Mountain Regions | |
| dc.relation | CICECO-Aveiro Institute of Materials | |
| dc.relation | CICECO – Aveiro Institute of Materials | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Binder-free K(23)Y zeolite | pt_PT |
| dc.subject | Vacuum pressure swing adsorption | pt_PT |
| dc.subject | Post-combustion CO2 capture | pt_PT |
| dc.subject | Dynamic simulations | pt_PT |
| dc.title | Vacuum pressure swing adsorption process using binder-free K(23)Y zeolite for post-combustion CO2 capture | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Green Hydrogen Separation from Natural Gas Grids by Adsorption Processes with MOFs | |
| oaire.awardTitle | Mountain Research Center | |
| oaire.awardTitle | Associate Laboratory for Sustainability and Tecnology in Mountain Regions | |
| oaire.awardTitle | CICECO-Aveiro Institute of Materials | |
| oaire.awardTitle | CICECO – Aveiro Institute of Materials | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/Concurso para Financiamento de Projetos de Investigação Científica e Desenvolvimento Tecnológico em Todos os Domínios Científicos - 2020/PTDC%2FEQU-EPQ%2F0467%2F2020/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0006%2F2020/PT | |
| oaire.citation.issue | 3 | pt_PT |
| oaire.citation.title | Separation and Purification Technology | pt_PT |
| oaire.citation.volume | 361 | pt_PT |
| oaire.fundingStream | Concurso para Financiamento de Projetos de Investigação Científica e Desenvolvimento Tecnológico em Todos os Domínios Científicos - 2020 | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| person.familyName | Aly | |
| person.familyName | Zafanelli | |
| person.familyName | Henrique | |
| person.familyName | Silva | |
| person.givenName | Ezzeldin | |
| person.givenName | Lucas F.A.S. | |
| person.givenName | Adriano | |
| person.givenName | José A.C. | |
| person.identifier.ciencia-id | 3D11-114D-1019 | |
| person.identifier.ciencia-id | DB18-4E7D-6696 | |
| person.identifier.ciencia-id | C11B-F5CF-7C78 | |
| person.identifier.orcid | 0000-0003-4840-2597 | |
| person.identifier.orcid | 0000-0001-5187-2042 | |
| person.identifier.orcid | 0000-0002-5227-9790 | |
| person.identifier.orcid | 0000-0003-1778-3833 | |
| person.identifier.scopus-author-id | 7403023684 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | restrictedAccess | pt_PT |
| rcaap.type | article | pt_PT |
| relation.isAuthorOfPublication | c0a51f8a-4f65-4b81-81e5-32c14291022f | |
| relation.isAuthorOfPublication | 2578e37a-73f2-45df-8adb-723f6c027606 | |
| relation.isAuthorOfPublication | 8f18b8ea-087b-4626-b5f1-9b66b1aa993f | |
| relation.isAuthorOfPublication | 16366ede-a7d6-45ff-a8c9-eff9bdde35c7 | |
| relation.isAuthorOfPublication.latestForDiscovery | 2578e37a-73f2-45df-8adb-723f6c027606 | |
| relation.isProjectOfPublication | 309eb89b-8a6e-44be-825b-6afe91c7813f | |
| relation.isProjectOfPublication | 29718e93-4989-42bb-bcbc-4daff3870b25 | |
| relation.isProjectOfPublication | 6255046e-bc79-4b82-8884-8b52074b4384 | |
| relation.isProjectOfPublication | ee1756de-00fa-4114-831e-d61b00d3831f | |
| relation.isProjectOfPublication | 9e0c34a5-886b-40e1-b058-f7433fe407e9 | |
| relation.isProjectOfPublication.latestForDiscovery | 9e0c34a5-886b-40e1-b058-f7433fe407e9 |