Modification of the performance of WO3-ZrO2 catalysts by metal addition in hydrocarbon reactions
A study of the different hydrocarbon reactions over Ni doped WO3-ZrO2 catalysts was performed. Ni was found as NiO at low Ni concentration while at high Ni concentrations a small fraction was present as a metal. For both cases, Ni strongly modified total acidity and concentration of strong acid site...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2012-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000400018&lng=en&tlng=en |
| _version_ | 1818365823997181952 |
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| author | Gerardo Carlos Torres Debora Laura Manuale Viviana Mónica Benítez Carlos Román Vera Juan Carlos Yori |
| author_facet | Gerardo Carlos Torres Debora Laura Manuale Viviana Mónica Benítez Carlos Román Vera Juan Carlos Yori |
| author_sort | Gerardo Carlos Torres |
| collection | DOAJ |
| description | A study of the different hydrocarbon reactions over Ni doped WO3-ZrO2 catalysts was performed. Ni was found as NiO at low Ni concentration while at high Ni concentrations a small fraction was present as a metal. For both cases, Ni strongly modified total acidity and concentration of strong acid sites. In the cyclohexane dehydrogenation reaction, Ni addition promotes both benzene and methyl cyclopentane production. The hydroconversion activity (n-butane and n-octane) increases with the augment of total acidity produced by Ni. The selectivity to reaction products is modified according to the acid strength distribution changes produced by Ni addition. |
| first_indexed | 2024-12-13T22:26:24Z |
| format | Article |
| id | doaj.art-3d1c84d4376a46ffbdf9042f8c1d90e2 |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-12-13T22:26:24Z |
| publishDate | 2012-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-3d1c84d4376a46ffbdf9042f8c1d90e22022-12-21T23:29:13ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642012-01-0135474875410.1590/S0100-40422012000400018S0100-40422012000400018Modification of the performance of WO3-ZrO2 catalysts by metal addition in hydrocarbon reactionsGerardo Carlos Torres0Debora Laura Manuale1Viviana Mónica Benítez2Carlos Román Vera3Juan Carlos Yori4Universidad Nacional del LitoralUniversidad Nacional del LitoralUniversidad Nacional del LitoralUniversidad Nacional del LitoralUniversidad Nacional del LitoralA study of the different hydrocarbon reactions over Ni doped WO3-ZrO2 catalysts was performed. Ni was found as NiO at low Ni concentration while at high Ni concentrations a small fraction was present as a metal. For both cases, Ni strongly modified total acidity and concentration of strong acid sites. In the cyclohexane dehydrogenation reaction, Ni addition promotes both benzene and methyl cyclopentane production. The hydroconversion activity (n-butane and n-octane) increases with the augment of total acidity produced by Ni. The selectivity to reaction products is modified according to the acid strength distribution changes produced by Ni addition.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000400018&lng=en&tlng=entungstated zirconiaNi additionhydrocarbon reactions |
| spellingShingle | Gerardo Carlos Torres Debora Laura Manuale Viviana Mónica Benítez Carlos Román Vera Juan Carlos Yori Modification of the performance of WO3-ZrO2 catalysts by metal addition in hydrocarbon reactions Química Nova tungstated zirconia Ni addition hydrocarbon reactions |
| title | Modification of the performance of WO3-ZrO2 catalysts by metal addition in hydrocarbon reactions |
| title_full | Modification of the performance of WO3-ZrO2 catalysts by metal addition in hydrocarbon reactions |
| title_fullStr | Modification of the performance of WO3-ZrO2 catalysts by metal addition in hydrocarbon reactions |
| title_full_unstemmed | Modification of the performance of WO3-ZrO2 catalysts by metal addition in hydrocarbon reactions |
| title_short | Modification of the performance of WO3-ZrO2 catalysts by metal addition in hydrocarbon reactions |
| title_sort | modification of the performance of wo3 zro2 catalysts by metal addition in hydrocarbon reactions |
| topic | tungstated zirconia Ni addition hydrocarbon reactions |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000400018&lng=en&tlng=en |
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