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CFD Modelling of Mixing Effects on the Course of Parallel Chemical Reactions Carried out in a Stirred Tank
Author(s) -
Bałdyga J.,
Makowski Ł.
Publication year - 2004
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200401992
Subject(s) - computational fluid dynamics , mixing (physics) , turbulence , micromixing , ethyl chloroacetate , continuous stirred tank reactor , chemical reactor , chemistry , sodium hydroxide , chemical reaction , mechanics , thermodynamics , chromatography , analytical chemistry (journal) , physics , organic chemistry , quantum mechanics
Abstract Effects of turbulent mixing on the course of two fast parallel chemical reactions (neutralization of sodium hydroxide and hydrolysis of ethyl chloroacetate) carried out in a semibatch stirred tank reactor are experimentally investigated and numerically simulated. The flow pattern in the stirred tank is predicted using CFD and experimentally validated using Laser Doppler Anemometry. Mixing effects are modelled using three CFD based models. In the first and the second model the Beta probability distribution and the spiked distribution are used respectively; in the third model concentration fluctuations are neglected.