Radial Liquid Distribution in a Trickle Bed Reactor

Influence of Gas Flow Rate on Liquid Distribution in Trickle-Beds Using Perforated Plates as Liquid Distributors

“…In this figure, the maldistribution factors for U G ) 0 were omitted because their dependence on U L seems to be stronger. Those M f values were comprised between 0.15 and 0.26, which shows, as already reported by authors like Marcandelli et al 6 and Møller et al, 4 the beneficial effect of having a flowing gas inside the reactor.…”

“…The use of two different measuring devices allowed studying the influence of gas flow rate on liquid distribution when perforated plates are used for fluid distribution. When using a good liquid distributor, the results showed that, as stated by authors like Marcandelli et al 6 and Møller et al, 4 it is the presence of a flowing gas, more than its flow rate, which has a clear positive impact on the liquid distribution inside the reactor. It was also observed that, in general terms, increasing the gas flow rate enhances the quality of the liquid distribution.…”

“…Among the factors affecting liquid distribution in trickle beds one will find the initial liquid distribution (ensured by the use of a proper distributor), the packing and fluid characteristics, the prewetting conditions, and the flow rates. Those factors have been widely studied by numerous authors (e.g., see refs – ). Many of their studies however, dealt mostly with small-sized columns and/or were performed using liquid collectors; so, in a very recent investigation, Babu et al used a column with 50 mm i.d..…”