Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts
Spent samples of V2O5/SiO2-γAl2O3 catalyst used for H2SO4 production were acid treated to recover vanadium. Fresh, spent, and acid treated samples were characterized by temperature-programmed techniques: TPR-H2, TPO-O2, TPD-NH3 and, TGA-DTA in order to determine the effect of deactivating species o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universidad de Antioquia
2013-02-01
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| Series: | Revista Facultad de Ingeniería Universidad de Antioquia |
| Subjects: | |
| Online Access: | https://revistas.udea.edu.co/index.php/ingenieria/article/view/14641 |
| _version_ | 1797861658545094656 |
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| author | Iran David Charry Lina María González Consuelo Montes de Correa |
| author_facet | Iran David Charry Lina María González Consuelo Montes de Correa |
| author_sort | Iran David Charry |
| collection | DOAJ |
| description |
Spent samples of V2O5/SiO2-γAl2O3 catalyst used for H2SO4 production were acid treated to recover vanadium. Fresh, spent, and acid treated samples were characterized by temperature-programmed techniques: TPR-H2, TPO-O2, TPD-NH3 and, TGA-DTA in order to determine the effect of deactivating species on vanadium recovery. DRX and UV-Vis techniques were used to confirm several signals from the temperature-programmed profiles. The results suggest that vanadium sulfovanadates and oxides in treated samples strongly interact with the support making it difficult to get more than 86% vanadium recovery.
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| first_indexed | 2024-04-09T22:07:50Z |
| format | Article |
| id | doaj.art-f8c1181cd34d4279af32929c318e9bfb |
| institution | Directory Open Access Journal |
| issn | 0120-6230 2422-2844 |
| language | English |
| last_indexed | 2024-04-09T22:07:50Z |
| publishDate | 2013-02-01 |
| publisher | Universidad de Antioquia |
| record_format | Article |
| series | Revista Facultad de Ingeniería Universidad de Antioquia |
| spelling | doaj.art-f8c1181cd34d4279af32929c318e9bfb2023-03-23T12:36:13ZengUniversidad de AntioquiaRevista Facultad de Ingeniería Universidad de Antioquia0120-62302422-28442013-02-015710.17533/udea.redin.14641Characterization by temperature programmed techniques of spent and acid treated vanadium catalystsIran David Charry0Lina María González1Consuelo Montes de Correa2University of AntioquiaUniversity of AntioquiaUniversity of Antioquia Spent samples of V2O5/SiO2-γAl2O3 catalyst used for H2SO4 production were acid treated to recover vanadium. Fresh, spent, and acid treated samples were characterized by temperature-programmed techniques: TPR-H2, TPO-O2, TPD-NH3 and, TGA-DTA in order to determine the effect of deactivating species on vanadium recovery. DRX and UV-Vis techniques were used to confirm several signals from the temperature-programmed profiles. The results suggest that vanadium sulfovanadates and oxides in treated samples strongly interact with the support making it difficult to get more than 86% vanadium recovery. https://revistas.udea.edu.co/index.php/ingenieria/article/view/14641V2O5 catalystcatalyst deactivationvanadium recoverysulfovanadate speciestemperature-programmed techniques |
| spellingShingle | Iran David Charry Lina María González Consuelo Montes de Correa Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts Revista Facultad de Ingeniería Universidad de Antioquia V2O5 catalyst catalyst deactivation vanadium recovery sulfovanadate species temperature-programmed techniques |
| title | Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts |
| title_full | Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts |
| title_fullStr | Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts |
| title_full_unstemmed | Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts |
| title_short | Characterization by temperature programmed techniques of spent and acid treated vanadium catalysts |
| title_sort | characterization by temperature programmed techniques of spent and acid treated vanadium catalysts |
| topic | V2O5 catalyst catalyst deactivation vanadium recovery sulfovanadate species temperature-programmed techniques |
| url | https://revistas.udea.edu.co/index.php/ingenieria/article/view/14641 |
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