A note on particle—liquid mass transfer in a fluidized bed of small irregular-shaped benzoic acid particles

Shen, Geyu; Geankoplis, C. J.; Brodkey, Robert S.

doi:10.1016/0009-2509(85)80046-4

Cited by 6 publications

(8 citation statements)

References 8 publications

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“…Evans and Gerald (1953) have reported that MTC increases with an increase in superficial mass velocity raised to 0.33 power. Shen et al (1985) have reported the exponent value as 0.27, which is quite similar to the results obtained by Laguerie and Angelino (1975), who have found the exponent of superficial liquid velocity equal to 0.217. Kikuchi et al (1988) have shown that MTC is proportional to superficial velocity raised to 0.196 power, while Seguin et al (1996) have found the value equal to 0.33.…”

Section: Superficial Liquid Velocity and Bed Voidagesupporting

confidence: 86%

“…The effect of bed voidage on mass transfer factor has been observed and considered by many previous investigators (Sengupta and Thodos 1962, Wilson and Geankoplis 1966, Couderc et al 1972, Damronglerd et al 1975, Laguerie and Angelino 1975, Dwivedi and Upadhyay 1977, Rahman and Streat 1981a, Shen et al 1985, Wildhagen et al 1985, Seguin et al 1996. Sengupta and Thodos (1962) and Wilson and Geankoplis (1966) have shown that mass transfer factor is inversely proportional to bed voidage.…”

Section: Superficial Liquid Velocity and Bed Voidagementioning

confidence: 94%

“…Reynolds number, Galileo number, and density number. The reports are available wherein the effect of particle size and shape has been studied separately by many investigators (Evans and Gerald 1953, Damronglerd et al 1975, Tournie et al 1979, Rahman and Streat 1981a,b, Ballesteros et al 1982, Shen et al 1985, Livingston and Noble 1993. However, the conclusions arrived at are not consistent with respect to the exponent of particle diameter.…”

Section: Physical Properties Of Liquid and Solid Phasesmentioning

confidence: 99%

“…Few reports are also available in the literature wherein MTC is directly related to superficial liquid velocity (Evans and Gerald 1953, Laguerie and Angelino 1975, Shen et al 1985, Kikuchi et al 1988, Seguin et al 1996, Boskovic-Vragolovic et al 2005. Evans and Gerald (1953) have reported that MTC increases with an increase in superficial mass velocity raised to 0.33 power.…”

Section: Superficial Liquid Velocity and Bed Voidagementioning

confidence: 99%

“…Laguerie and Angelino (1975) have reported the bed voidage exponent value equal to −1.8. Shen et al (1985) have shown that mass transfer factor is proportional to bed voidage raised to power −1.42. Another approach is also available in the literature wherein bed voidage has been replaced by Galileo number, particle Reynolds number (dPρLVS∞/μL), and often a density number (Damronglerd et al 1975, Tournie et al 1979, Ballesteros et al 1982, Livingston and Noble 1993.…”

Section: Superficial Liquid Velocity and Bed Voidagementioning

confidence: 99%

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Solid-liquid circulating fluidized bed: a way forward

Thombare

Chavan

Bankar

et al. 2017

Reviews in Chemical Engineering

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AbstractSolid-liquid circulating fluidized beds (SLCFBs) offer several attractive features over conventional solid-liquid fluidized beds such as efficient liquid-solid contact, favorable mass and heat transfer, reduced back-mixing of phases, and integrated reactor and regenerator design. These unique features have stimulated theoretical and experimental investigations over the past two decades on transport phenomena in SLCFBs. However, there is a need to compile and analyze the published information with a coherent theme to design and develop SLCFB with sufficient degree of confidence for commercial application. Therefore, the present work reviews and analyzes the literature on hydrodynamic, mixing, heat transfer, and mass transfer characteristics of SLCFBs comprehensively. Suitable recommendations have also been made for future work in concise manner based on the knowledge gaps identified in the literature. Furthermore, a novel multistage SLCFB has been proposed to overcome the limitations of existing SLCFBs. The proposed model of SLCFB primarily consists of a single multistage column which is divided into two sections wherein both the steps of utilizationviz.loading (adsorption, catalytic reaction, etc.) and regeneration of solid phase could be carried out simultaneously on a continuous mode.

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