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Modeling and Experimental Set-up

Simultaneous execution of reactive absorption and granulation is the most recent application of the liquid-sprayed gas-solid fluidized bed. Hence, although no models have been published for the computation and interpretation of such a process, several different models describing subprocesses are available. Indeed, the absorption of spray drops has been the subject of many investigations over several years. [Pg.456]

Danckwerts [16] showed, on the basis of the absorption of sulfur dioxide in water and of carbon dioxide in solution, that absorption increases by dissociation processes. [Pg.456]

The effect of solid particles in the gas-liquid phase boundary on absorption was investigated by Ramachandran and Sharma [74], who showed the absorption process to be strengthened by chemical reaction between the absorbed component and the solid in solution. [Pg.456]

Uchida and Wen [92] also proposed a mathematical model for absorption by dividing the concentration profiles of the absorbed gas and migration of the solid into solution in six classical cases, including the boundary conditions. [Pg.456]

Sada et al. [79] experimented with stirred vessels to determine the absorption of CO2 and SO2 in calcium hydroxide suspensions, and found their results to be comparable with others [74, 92]. These authors concluded that an increase in the solid [Pg.456]


Two applications of the above model and experimental set-up are described below. [Pg.151]

Guedes de Carvalho et al. developed a mathematical model for this physical situation and compared the predictions of the model with the concentration curves at the outlet of the column, following a step change in tracer concentration at the inlet. For more details of both mathematical model and experimental set-up and procedure, the original work should be consulted [7],... [Pg.59]


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