Publication
Binary adsorption of CO2/CH4 in binderless beads of 13X zeolite
| dc.contributor.author | Silva, José A.C. | |
| dc.contributor.author | Cunha, Adelino F. | |
| dc.contributor.author | Schumann, Kristin | |
| dc.contributor.author | Rodrigues, Alírio | |
| dc.date.accessioned | 2015-12-22T09:10:19Z | |
| dc.date.available | 2015-12-22T09:10:19Z | |
| dc.date.issued | 2014 | |
| dc.description.abstract | The binary sorption CO2 and CH4 in binderless beads of 13X zeolite has been investigated between 313 and 473 K and total pressure up to 5 atm through fixed bed adsorption experiments. The amount adsorbed of CO2 and CH4 is around 4.7 mmol/gads and 0.4 mmol/gads, respectively, at 313 K and 3.7 atm in a 50/50 equimolar mixture. In a 25(CO2)/75(CH4) mixture the amount adsorbed is 4.0 and 0.84 mmol/g at the same temperature and pressure. Experimental selectivities CO2/CH4 range from 37 at a low pressure of 0.667 atm to approximately 5 at the high temperature of 423 K. Comparing these values with the ones in literature CO2 adsorption capacity is 20% higher than in CECA 13X binder pellets. The CO2/CH4 binary isotherms were fitted with the extended Fowler model that takes into account interaction between adsorbed molecules at adjacent sites suggesting a moderate attraction between CO2 and CH4. The model is validated through a graphical method using the single component isotherm parameters. The breakthrough curves measured show a plateau of pure CH4 of approximately 6 min depending of the operating conditions chosen. | pt_PT |
| dc.identifier.citation | Silva, José A.C.; Cunha, Adelino F.; Schumann, Kristin; Rodrigues, A.E. (2014). Binary adsorption of CO2/CH4 in binderless beads of 13X zeolite. Microporous and Mesoporous Materials. ISSN 1387-1811. 187, p.100-107 | pt_PT |
| dc.identifier.doi | 10.1016/j.micromeso.2013.12.017 | pt_PT |
| dc.identifier.issn | 1387-1811 | |
| dc.identifier.uri | http://hdl.handle.net/10198/12535 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Wiley | pt_PT |
| dc.relation | (SFR/BPD/62968/2009 | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Biogas upgrading | pt_PT |
| dc.subject | Zeolite 13X | pt_PT |
| dc.title | Binary adsorption of CO2/CH4 in binderless beads of 13X zeolite | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 107 | pt_PT |
| oaire.citation.issue | 187 | pt_PT |
| oaire.citation.startPage | 100 | pt_PT |
| oaire.citation.title | Microporous and Mesoporous Materials | pt_PT |
| person.familyName | Silva | |
| person.givenName | José A.C. | |
| person.identifier.ciencia-id | C11B-F5CF-7C78 | |
| person.identifier.orcid | 0000-0003-1778-3833 | |
| person.identifier.scopus-author-id | 7403023684 | |
| rcaap.rights | restrictedAccess | pt_PT |
| rcaap.type | article | pt_PT |
| relation.isAuthorOfPublication | 16366ede-a7d6-45ff-a8c9-eff9bdde35c7 | |
| relation.isAuthorOfPublication.latestForDiscovery | 16366ede-a7d6-45ff-a8c9-eff9bdde35c7 |