Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 Ethanol dehydration over LaSBA-15 nanostrutured material
<abstract language="eng">La-incorporated SBA-15 mesopourous molecular sieves (LaSBA-15) were directly synthesized with aim to convert ethanol to ethylene. The samples were characterized by XRD, XRF, nitrogen sorption and acidity, by thermodesorption of n-buthylamine. The results have...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2010-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000800005 |
| _version_ | 1818945300923940864 |
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| author | Geraldo E. Luz Jr Ana C. R. Melo Stevie H. Lima Antônio S. Araujo Valter J. Fernandes Jr. |
| author_facet | Geraldo E. Luz Jr Ana C. R. Melo Stevie H. Lima Antônio S. Araujo Valter J. Fernandes Jr. |
| author_sort | Geraldo E. Luz Jr |
| collection | DOAJ |
| description | <abstract language="eng">La-incorporated SBA-15 mesopourous molecular sieves (LaSBA-15) were directly synthesized with aim to convert ethanol to ethylene. The samples were characterized by XRD, XRF, nitrogen sorption and acidity, by thermodesorption of n-buthylamine. The results have indicated that all the samples have showed high ordered mesostructure with a large average pore size, and that the lanthanum incorporation has caused an increase in the acidity of the SBA-15. The LaSBA-15 samples have improved, with low deactivation rate, the conversion of the ethanol to water, ether, acetaldehyde and ethylene. In addition, they have increased the ethylene selectivity. |
| first_indexed | 2024-12-20T07:56:56Z |
| format | Article |
| id | doaj.art-25129d92ee184a09b90cd0852585b292 |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-20T07:56:56Z |
| publishDate | 2010-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-25129d92ee184a09b90cd0852585b2922022-12-21T19:47:40ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642010-01-013381646164810.1590/S0100-40422010000800005Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 Ethanol dehydration over LaSBA-15 nanostrutured materialGeraldo E. Luz JrAna C. R. MeloStevie H. LimaAntônio S. AraujoValter J. Fernandes Jr.<abstract language="eng">La-incorporated SBA-15 mesopourous molecular sieves (LaSBA-15) were directly synthesized with aim to convert ethanol to ethylene. The samples were characterized by XRD, XRF, nitrogen sorption and acidity, by thermodesorption of n-buthylamine. The results have indicated that all the samples have showed high ordered mesostructure with a large average pore size, and that the lanthanum incorporation has caused an increase in the acidity of the SBA-15. The LaSBA-15 samples have improved, with low deactivation rate, the conversion of the ethanol to water, ether, acetaldehyde and ethylene. In addition, they have increased the ethylene selectivity.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000800005ethanol dehydrationLaSBA-15ethylene |
| spellingShingle | Geraldo E. Luz Jr Ana C. R. Melo Stevie H. Lima Antônio S. Araujo Valter J. Fernandes Jr. Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 Ethanol dehydration over LaSBA-15 nanostrutured material Química Nova ethanol dehydration LaSBA-15 ethylene |
| title | Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 Ethanol dehydration over LaSBA-15 nanostrutured material |
| title_full | Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 Ethanol dehydration over LaSBA-15 nanostrutured material |
| title_fullStr | Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 Ethanol dehydration over LaSBA-15 nanostrutured material |
| title_full_unstemmed | Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 Ethanol dehydration over LaSBA-15 nanostrutured material |
| title_short | Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 Ethanol dehydration over LaSBA-15 nanostrutured material |
| title_sort | desidratacao de etanol sobre material nanoestruturado do tipo lasba 15 ethanol dehydration over lasba 15 nanostrutured material |
| topic | ethanol dehydration LaSBA-15 ethylene |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000800005 |
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