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- Title
Studies on Momentum Transfer Aspects of Semifluidized Beds in Annular Sections.
- Authors
Soni, A. B.; Kumar, H.; Shrivastava, Pooja V.
- Abstract
Semifluidization (SF) is a novel fluid-solid contact technique. An SF bed overcomes the inherent disadvantages of a packed bed as well as that of a fluidized bed. It is a combination of fluidized bed at the bottom and packed bed at the top in series within a single contacting vessel. Various aspects of semifluidized beds in cylindrical columns and conical vessels have been reported in literature (Fan and Wen, 1959; Roy and Sharma, 1972; Govindrajan and Sengupta, 1976; Murthy and Roy, 1986; Murthy et al., 1987; Briens et al., 1997; and Jing et al., 2000). This paper presents studies on momentum transfer aspects of semifluidized beds in annular sections, which are likely to be useful in the design and operation of SF bed reactors. Data was collected using the variables: liquid mass velocity, particle size and particle density. Correlations were developed based on dimensional analysis approach for the prediction of semifluidized bed pressure drop and of minimum and maximum semifluidized velocity. A fairly good agreement was obtained between the calculated and experimental data.
- Subjects
FLUIDIZATION; FLUID dynamics; MOMENTUM transfer; TRANSPORT theory; FLUIDIZED bed reactors; DIMENSIONAL analysis
- Publication
IUP Journal of Chemical Engineering, 2010, p37
- ISSN
0975-6337
- Publication type
Article