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Campo DC | Valor | Idioma |
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dc.contributor.author | Carriço, Camila Santana | - |
dc.contributor.author | Cruz, Fernanda T. | - |
dc.contributor.author | Santos, Maurício B. | - |
dc.contributor.author | Pastore, Heloise de Oliveira | - |
dc.contributor.author | Andrade, Heloysa Martins Carvalho | - |
dc.contributor.author | Mascarenhas, Artur J. S. | - |
dc.creator | Carriço, Camila Santana | - |
dc.creator | Cruz, Fernanda T. | - |
dc.creator | Santos, Maurício B. | - |
dc.creator | Pastore, Heloise de Oliveira | - |
dc.creator | Andrade, Heloysa Martins Carvalho | - |
dc.creator | Mascarenhas, Artur J. S. | - |
dc.date.accessioned | 2014-05-13T12:10:23Z | - |
dc.date.issued | 2013 | - |
dc.identifier.issn | 1387-1811 | - |
dc.identifier.uri | http://repositorio.ufba.br/ri/handle/ri/14943 | - |
dc.description | Texto completo: acesso restrito. p. 74–82 | pt_BR |
dc.description.abstract | The gas-phase dehydration of glycerol was conducted over MCM-22 zeolite with different SiO2/Al2O3 molar ratios. MCM-22 zeolites were synthesized and characterized by XRD, FTIR, TG, SEM, EDX, textural analysis by N2 physisorption and NH3-TPD. The MCM-22 zeolites have presented good crystallinity, high surface areas and a decreased amount of acid sites and strength with increasing SiO2/Al2O3 ratio was observed. The glycerol conversion and acrolein selectivity increased with increasing reaction temperature from 280 °C to 320 °C on MCM-22 (30) catalyst. As long as the concentration of glycerol solution was in the range from 10% to 36.6%, there was no noticeable difference in the glycerol conversion but the acrolein yield increased with water amount in the feed. The glycerol conversion and selectivity to acrolein at 320 °C using glycerol feed of 36.6% during 10 h of reaction decreased in the following order: MCM-22 (30) > MCM-22 (50) > MCM-22 (80). This result shows that glycerol dehydration to acrolein is strongly dependent on the acid sites density and external surface area of the zeolite MCM-22. | pt_BR |
dc.language.iso | en | pt_BR |
dc.rights | Acesso Aberto | pt_BR |
dc.source | http://dx.doi.org/10.1016/j.micromeso.2013.07.020 | pt_BR |
dc.subject | MCM-22 | pt_BR |
dc.subject | Dehydration of glycerol | pt_BR |
dc.subject | Sustainable production of acrolein | pt_BR |
dc.title | Efficiency of zeolite MCM-22 with different SiO2/Al2O3 molar ratios in gas phase glycerol dehydration to acrolein | pt_BR |
dc.title.alternative | Microporous and Mesoporous Materials | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.number | v. 181 | pt_BR |
dc.embargo.liftdate | 10000-01-01 | - |
Aparece nas coleções: | Artigo Publicado em Periódico (Química) |
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