| Автор | LIAO, P.C. |
| Автор | WOLF, E.E. |
| Дата выпуска | 1982 |
| dc.description | A systematic study of the effect of reaction environment and catalyst surface on self-sustained oscillations during CO oxidation on a Pt/γ-Al2O, catalyst is presented in this paper. The catalyst, consisting of a fixed bed of small particles, was subjected to three different pretreatments: fresh, O2 - H2 treated and poisoned by SO2. Self-sustained oscillations, lasting for as long as desired, were manifest in a narrow range of temperatures and O2/CO ratios. The structure of the oscillatory pattern varied with catalyst pretreatment, however, in all cases the predominant feature consisted in transitions between low and high conversion levels (ignition-quenching). The amplitude and frequency of the oscillations varied with surface pretreatment, however, they decreased as temperature and O2:/CO ratio increases. Small temperature fluctuations of less than 6°C, which mirrowed concentration oscillations were also observed. A unique feature observed under certain conditions, was an overshoot of CO2 outlet concentration in excess to the 100% conversion, which indicated the participation of surface stored CO. The results are discussed in terms of competitive CO and O2 adsorption-reaction coupled with reactor and surface balances. |
| Формат | application.pdf |
| Издатель | Taylor & Francis Group |
| Копирайт | Copyright Taylor and Francis Group, LLC |
| Название | SELF-SUSTAINED OSCILLATIONS DURING CO OXIDATION ON A Pt/γ-Al<sub>2</sub>O<sub>3</sub> CATALYST |
| Тип | research-article |
| DOI | 10.1080/00986448208910915 |
| Electronic ISSN | 1563-5201 |
| Print ISSN | 0098-6445 |
| Журнал | Chemical Engineering Communications |
| Том | 13 |
| Первая страница | 315 |
| Последняя страница | 326 |
| Аффилиация | LIAO, P.C.; Department of Chemical Engineering, University of Notre Dame |
| Аффилиация | WOLF, E.E.; Department of Chemical Engineering, University of Notre Dame |
| Выпуск | 4-6 |
