Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/103913
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dc.creatorAna M. Ribeiro
dc.creatorJoão C. Santos
dc.creatorAlírio E. Rodrigues
dc.creatorSébastien Rifflart
dc.date.accessioned2019-07-31T23:13:07Z-
dc.date.available2019-07-31T23:13:07Z-
dc.date.issued2012
dc.identifier.issn0149-6395
dc.identifier.othersigarra:161647
dc.identifier.urihttps://hdl.handle.net/10216/103913-
dc.description.abstractMethanol is an important raw material in industry and is commonly produced from syngas. The stoichiometric ratio (H-2-CO2)/(CO + CO2) of the methanol synthesis reactor feed stream must be adjusted to approximately 2.1. In this study, the replacement of the solvent unit within a coal to methanol process by a pressure swing adsorption (PSA) unit is proposed. The PSA produces a hydrogen enriched stream, to adjust the stoichiometric ratio of the methanol feed stream, and simultaneously captures the carbon dioxide for future sequestration. The feed flow rate is sub divided into eight 4-bed PSA units, operated with a defined phase lag between them in order to flatten the products (composition and flow rate) oscillations. The results show that the stoichiometric adjustment is possible and that oscillations on the products flow rate and composition are reduced to less than 3%. A carbon dioxide stream of 95.15% is obtained with a recovery of 94.2% and a productivity of 82.7 mol CO2/kg/day. The power consumption of the global process is 119.7 MW, which includes the requirements for the rinse stream (64.4 MW) and the compression of the CO2 product to 110 bar for sequestration (55.3 MW).
dc.language.isoeng
dc.relationinfo:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Programa de Financiamento Plurianual de Unidades de I&D/PEst-C/EQB/LA0020/2011/Projeto Estratégico-LA 20 - 2011-2012/LA 20
dc.rightsrestrictedAccess
dc.titleSyngas Stoichiometric Adjustment for Methanol Production and Co-Capture of Carbon Dioxide by Pressure Swing Adsorption
dc.typeArtigo em Revista Científica Internacional
dc.contributor.uportoFaculdade de Engenharia
dc.identifier.doi10.1080/01496395.2011.637282
dc.identifier.authenticusP-002-GJJ
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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