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Design of Horizontal Vessels Operated as CSTR – Basic Mixing Tasks, RTD, Productivity
Author(s) -
Forschner P.,
Houlton D.,
Kassera V.,
Klepper R.,
Krebs R.
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.200401990
Subject(s) - agitator , baffle , residence time distribution , mixing (physics) , mechanics , dead zone , residence time (fluid dynamics) , computational fluid dynamics , process (computing) , continuous stirred tank reactor , mechanical engineering , engineering , environmental science , materials science , simulation , flow (mathematics) , computer science , mass transfer , geology , geotechnical engineering , physics , oceanography , quantum mechanics , operating system , chemical engineering
Agitator performance in standard vertical vessels with cylindrical shape, dished bottom and zero to four baffles has been the topic of numerous publications. In certain industries, however, horizontal cylindrical vessels with hemispherical ends, divided internally into multiple compartments, are preferred for continuous processes operating at high pressures. Use of standard correlations derived from vertical vessels may lead to incorrect performance predictions for these horizontal vessels, and hence unsatisfactory process results. A number of laboratory trials were undertaken to identify differences in behavior and potential means to improve design for horizontal vessels. Differences with respect to solids suspension, mixing time and residence time distribution were studied. CFD simulations were undertaken and validated against the experimental results.