Bw. Van Hasselt et al., Gas- and liquid-phase residence time distribution in the three-levels-of-porosity reactor, CHEM ENG SC, 54(21), 1999, pp. 5047-5053
Gas- and liquid-phase residence time distribution (RTD) were measured in di
fferent three-levels-of-porosity reactor configurations. Both the gas and t
he liquid residence time distribution can be predicted with a tanks-in-seri
es model. For the gas phase, the number of stirred tanks proved to be equal
to the number of catalyst layers. For the liquid phase, the number of tank
s depends on the height of the catalyst layers and on the character of the
liquid flow. The influence of the distance between the layers on the RTD is
adequately described by plug flow for the jets that fall from layer to lay
er. The measurements indicated a uniform axial liquid velocity profile. (C)
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