Solid-liquid mass transfer in a gas-liquid-solid fluidized bed11This paper was presented at the 1984 Annual Meeting of the American Institute of Chemical Engineers, 25-30 November.

Mass Transfer, Mixing and Heat Transfer of Cocurrent Upward Fluidized Bed Systems (Mode E-I-a-1; Figure 1.3)

“…Arters and Fan (1984), operating in the slugging regime, found continuous increases in k § through gas velocities as high as 25 cm/s, while Prakash et al (1987), working in the dispersed regime, noted that a constant k § was obtained at gas velocities above 20 cm/s. Arters et al (1989) combined the instantaneous capabilities of the electrochemical reduction method with two-dimensional visualization techniques to identify regions of increased mass transfer of a single mobile particle in the wake region of a single bubble rising in a liquid-solid fluidized bed. Arters and Fan (1988) have also noted that effects on the mass transfer of porous and perforated plate distributors are limited to a relatively small region of the bed while Prakash et al (1987) found a decrease in the mass transfer in beds utilizing more inefficient spouted gas distributors.…”

“…Liquid-solid mass transfer in a three-phase fluidized bed has been studied experimentally by Arters (1984), Fan (1984, 1988), Hassanien et al (1984), Prakash et al (1984Prakash et al ( , 1987, Nikov and Delmas (1987), Fukuma et al (1988) and Arters et al (1989). Arters (1984) and Arters and Fan (1984) examined the effects of gas flow rate, liquid flow rate, and particle size on the liquid-solid mass transfer in three-phase fluidized beds using air, water, and benzoic acid pellets.…”