## AbstracbIn gas-fluidized beds bubbling starts when the voids formed by the oscillating bottom layer of the bed exceed a minimal size. The so-called vibration criterion derived predicts the porosity at the bubble point in close agreement with the experimental data. Comparison of the other criter
The local structure of gas fluidized beds —II. The spatial distribution of bubbles
✍ Scribed by J. Werther; O. Molerus
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 845 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0301-9322
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Batches of commercial fluid cracking catalyst of broad and narrow particle size ranges were particulately fluidized by air in a 140 mm i.d. semicircular column with a transparent flat wall, and their expansion behaviour compared. The batches of narrow size range varied from 125-104 to 45-40 CL. Cav
## Measurements of the visible bubble flow rate and the through-flow velocity of gas inside bubbles were made in a pressurized fluid&d bed, using capacitance and Pitot-static pressure probes, respectively. The influence of pressure and fluidiition velocity on the bubble behaviour and gas Row distr
Based on the observed pattern of coalescence of bubble pairs in vertical alignment in a two-dimensional bed, a theory is developed which describes how bubble size and frequency changes with height in a gas fluidised bed. It is confirmed by comparison with the reported data from 10 separate investiga