Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir Investigation
In this paper, we have studied the effect of chlorine on the surface properties of gamma-alumina, especially on their acid properties. The use of FTIR spectroscopy and 31P MAS NMR of adsorbed trimethylphosphine allows to propose a chlorination mechanism. To correlate the surface properties of these...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
1999-07-01
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| Series: | Oil & Gas Science and Technology |
| Online Access: | http://dx.doi.org/10.2516/ogst:1999046 |
| _version_ | 1798027529930407936 |
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| author | Guillaume D. Gautier S. Alario F. Deves J. M. |
| author_facet | Guillaume D. Gautier S. Alario F. Deves J. M. |
| author_sort | Guillaume D. |
| collection | DOAJ |
| description | In this paper, we have studied the effect of chlorine on the surface properties of gamma-alumina, especially on their acid properties. The use of FTIR spectroscopy and 31P MAS NMR of adsorbed trimethylphosphine allows to propose a chlorination mechanism. To correlate the surface properties of these chlorinated gamma-alumina with their catalytic properties, we have used a model reaction, the cracking of n-heptane under reforming conditions. The analysis of the correlation between acid properties determined by 31P MAS NMR and the catalytic results (in terms of activities and selectivities) allows to identify which sites are involved in the cracking reaction. |
| first_indexed | 2024-04-11T18:54:09Z |
| format | Article |
| id | doaj.art-771529978c9b445fa440ffca85859504 |
| institution | Directory Open Access Journal |
| issn | 1294-4475 |
| language | English |
| last_indexed | 2024-04-11T18:54:09Z |
| publishDate | 1999-07-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Oil & Gas Science and Technology |
| spelling | doaj.art-771529978c9b445fa440ffca858595042022-12-22T04:08:16ZengEDP SciencesOil & Gas Science and Technology1294-44751999-07-0154453754510.2516/ogst:1999046guillaume_v54n4Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir InvestigationGuillaume D.Gautier S.Alario F.Deves J. M.In this paper, we have studied the effect of chlorine on the surface properties of gamma-alumina, especially on their acid properties. The use of FTIR spectroscopy and 31P MAS NMR of adsorbed trimethylphosphine allows to propose a chlorination mechanism. To correlate the surface properties of these chlorinated gamma-alumina with their catalytic properties, we have used a model reaction, the cracking of n-heptane under reforming conditions. The analysis of the correlation between acid properties determined by 31P MAS NMR and the catalytic results (in terms of activities and selectivities) allows to identify which sites are involved in the cracking reaction.http://dx.doi.org/10.2516/ogst:1999046 |
| spellingShingle | Guillaume D. Gautier S. Alario F. Deves J. M. Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir Investigation Oil & Gas Science and Technology |
| title | Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir Investigation |
| title_full | Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir Investigation |
| title_fullStr | Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir Investigation |
| title_full_unstemmed | Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir Investigation |
| title_short | Relation Between Acid and Catalytic Properties of Chlorinated Gamma-Alumina. a 31p Mas Nmr and Ftir Investigation |
| title_sort | relation between acid and catalytic properties of chlorinated gamma alumina a 31p mas nmr and ftir investigation |
| url | http://dx.doi.org/10.2516/ogst:1999046 |
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