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| Titel: |
START-UP TIME IN TUBULAR REACTORS WITH AXIAL DISPERSION |
| Auteur: |
Gonzalez, Maria G. Ponzi, Esther N. Lemcoff, Norberto O. |
| Verschenen in: |
Chemical engineering communications |
| Paginering: | Jaargang 12 (1981) nr. 4-6 pagina's 267-277 |
| Jaar: |
1981-11-01 |
| Inhoud: |
In the modeling of nonideal reactors the axial dispersion model is one of the most used (Butt, 1980). Boundary conditions for a tubular reactor with axial dispersion were extensively analyzed (Danckwerts, 1953, Wehner and Wilhelm, 1965, Van Cauwen-berghe, 1966, Choi and Perlmutter, 1976, Deckwer and Mahlmann, 1976) Similarly, the steady state behaviour of the reactor when simple or complex reactions take place was also studied by several authors (Deckwer et al. 1972, Wan and Ziegler, 1973). However, the transient behaviour was only analyzed for simple kinetics expressions (Fan and Ahn, 1963, Sawinsky artd Hunek, 1977, Godslave and Chang, 1980) In the present work, the time necessary to reach the steady state or start-up time is determined for single and complex reversible reactions. The analysis presented is also valid in case there is a change in feed concentration (feed upset, etc.) |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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