Large bubble sizes and rise velocities in a bubble column slurry reactor

Autor: C.O. Vandu, K. Koop, Rajamani Krishna
Přispěvatelé: Chemical Reactor engineering (HIMS, FNWI)
Rok vydání: 2004
Předmět:
Zdroj: Chemical Engineering & Technology, 27, 1195-1199. Wiley-VCH Verlag
ISSN: 1521-4125
0930-7516
Popis: The results are reported of an experimental study of the gas holdup, EG, large bubble diameter, d Lb , and large bubble rise velocity, V Lb , in a 0.1 m wide, 0.02 m deep and 0.95 m high rectangular slurry bubble column operated at ambient temperature and pressure conditions. The superficial gas velocity U was varied in the range of 0-0.2 m/s, spanning both the homogeneous and heterogeneous flow regimes. Air was used as the gas phase. The liquid phase used was C 9 -C 11 Paraffin oil containing varying volume fractions (e s = 0, 0.05. 0.10, 0.15, 0.20 and 0.25) of porous catalyst (alumina catalyst support, 10% 0.05 and U > 0.1 m/s. The measured large bubble rise velocity V Lb agrees with the predictions of a modified Davis-Taylor relationship.
Databáze: OpenAIRE
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