Kinetics and mechanism of the oxidative dehydrogenation of n-butane over a SiO2-supported VMgO catalyst
An experimental study, and the corrresponding simulation, for the oxidative dehydrogenation of n-butane over a SiO2(30 wt%)-supported VMgO catalyst (with a Mg/V atomic ratio of 4 and a surface area, SBET, of 73 m2/g) is presented. Experimental data were obtained using a packed bed quartz tubular rea...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidad del Zulia
2010-10-01
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| Series: | Revista Técnica de la Facultad de Ingeniería |
| Subjects: | |
| Online Access: | https://www.produccioncientificaluz.org/index.php/tecnica/article/view/5815 |
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| author | Norka Armas José Manuel López Nieto José Papa B. Solsona A Briceño |
| author_facet | Norka Armas José Manuel López Nieto José Papa B. Solsona A Briceño |
| author_sort | Norka Armas |
| collection | DOAJ |
| description | An experimental study, and the corrresponding simulation, for the oxidative dehydrogenation of n-butane over a SiO2(30 wt%)-supported VMgO catalyst (with a Mg/V atomic ratio of 4 and a surface area, SBET, of 73 m2/g) is presented. Experimental data were obtained using a packed bed quartz tubular reactor operating under steady-state conditions, isothermal, and uniform flow conditions, varying the temperature within the range of 475-550°C, the contact time from 10 to 60 gcat/(moln-butane/h), the inlet molar fraction of n-butane from 2 to 8% and that of oxygen from 8 to 20%. The proposed model is based on a sound reaction scheme, with kinetics expression derived using the redox mechanism of Mars-Van Krevelen. The best fitting was obtained with a correlation coefficient of 0.8715 and a variance of 1.33 x10-3.
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| first_indexed | 2024-04-12T02:31:47Z |
| format | Article |
| id | doaj.art-184747a640b64dcbb1c5c67abd7fffa3 |
| institution | Directory Open Access Journal |
| issn | 0254-0770 2477-9377 |
| language | English |
| last_indexed | 2024-04-12T02:31:47Z |
| publishDate | 2010-10-01 |
| publisher | Universidad del Zulia |
| record_format | Article |
| series | Revista Técnica de la Facultad de Ingeniería |
| spelling | doaj.art-184747a640b64dcbb1c5c67abd7fffa32022-12-22T03:51:44ZengUniversidad del ZuliaRevista Técnica de la Facultad de Ingeniería0254-07702477-93772010-10-01262Kinetics and mechanism of the oxidative dehydrogenation of n-butane over a SiO2-supported VMgO catalystNorka Armas0José Manuel López Nieto1José Papa2B. Solsona3A Briceño4Universidad Central de Venezuela-VenezuelaUniversidad Central de Venezuela-VenezuelaUniversidad Central de Venezuela-VenezuelaUniversidad Polit í¨cnica de Valencia-EspañaUniversidad Central de Venezuela-VenezuelaAn experimental study, and the corrresponding simulation, for the oxidative dehydrogenation of n-butane over a SiO2(30 wt%)-supported VMgO catalyst (with a Mg/V atomic ratio of 4 and a surface area, SBET, of 73 m2/g) is presented. Experimental data were obtained using a packed bed quartz tubular reactor operating under steady-state conditions, isothermal, and uniform flow conditions, varying the temperature within the range of 475-550°C, the contact time from 10 to 60 gcat/(moln-butane/h), the inlet molar fraction of n-butane from 2 to 8% and that of oxygen from 8 to 20%. The proposed model is based on a sound reaction scheme, with kinetics expression derived using the redox mechanism of Mars-Van Krevelen. The best fitting was obtained with a correlation coefficient of 0.8715 and a variance of 1.33 x10-3. https://www.produccioncientificaluz.org/index.php/tecnica/article/view/5815dehydrogenationcatalyticoxidativen-butanesimulationV-Mg-O/SiO2 catalyst |
| spellingShingle | Norka Armas José Manuel López Nieto José Papa B. Solsona A Briceño Kinetics and mechanism of the oxidative dehydrogenation of n-butane over a SiO2-supported VMgO catalyst Revista Técnica de la Facultad de Ingeniería dehydrogenation catalytic oxidative n-butane simulation V-Mg-O/SiO2 catalyst |
| title | Kinetics and mechanism of the oxidative dehydrogenation of n-butane over a SiO2-supported VMgO catalyst |
| title_full | Kinetics and mechanism of the oxidative dehydrogenation of n-butane over a SiO2-supported VMgO catalyst |
| title_fullStr | Kinetics and mechanism of the oxidative dehydrogenation of n-butane over a SiO2-supported VMgO catalyst |
| title_full_unstemmed | Kinetics and mechanism of the oxidative dehydrogenation of n-butane over a SiO2-supported VMgO catalyst |
| title_short | Kinetics and mechanism of the oxidative dehydrogenation of n-butane over a SiO2-supported VMgO catalyst |
| title_sort | kinetics and mechanism of the oxidative dehydrogenation of n butane over a sio2 supported vmgo catalyst |
| topic | dehydrogenation catalytic oxidative n-butane simulation V-Mg-O/SiO2 catalyst |
| url | https://www.produccioncientificaluz.org/index.php/tecnica/article/view/5815 |
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