Abstract
The influence of segregation on the yield of the series-parallel reaction system A + B → R, B + R → S is studied. The reactants A and B are initially assumed to be in a periodic array of alternating lamellae and the reaction and diffusion processes are then followed by numerical simulation. We find that the ultimate yield of R can be significantly reduced when compared with the well-mixed case, if the scale of segregation is large. By comparison with the well-mixed ease, it is possible to correlate the ultimate yield of R as a function of a Damkohler number based on both reaction rate constants and the lamellar width. This correlation is a weak function of the ratio of the rate constants and the relative amounts of A and B present at the start of the reaction.
| Original language | English |
|---|---|
| Pages (from-to) | 1791-1801 |
| Number of pages | 10 |
| Journal | Chemical Engineering Science |
| Volume | 53 |
| Issue number | 10 |
| Publication status | Published - 15 May 1998 |
Keywords
- Mixing
- Reaction-diffusion
- Segregation
- Series-parallel reaction