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Performance of a three‐phase fluidized bed as a reactive distillation device
Author(s) -
Liang Wugeng,
Wang Zhanwen,
Jin Yong,
Yu Zhiqing,
Yang Sheng
Publication year - 1996
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.270190512
Subject(s) - fluidized bed , reactive distillation , bubble , distillation , three phase , phase (matter) , liquid phase , chemistry , chromatography , materials science , fluidization , chemical engineering , waste management , mechanics , thermodynamics , organic chemistry , engineering , physics , voltage , electrical engineering
A new reactive distillation device, the multistage gas/liquid/solid three‐phase fluidized bed, has been developed. The flow regimes of the multistage three‐phase fluidized bed have been studied and the regimes can be divided into the liquid leakage regime, the dispersed bubble regime, and the coalesced bubble regime. Liquid velocity has a much smaller effect on phase holdups in this device than in conventional three‐phase fluidized beds. The three phase fluidized bed is used as a reactive distillation device for the hydrolysis of methyl acetate. Much higher reaction conversion than the equilibrium value and high catalyst‐contacting efficiency are obtained. Different methods of feeding the water into the reactive distillation section are studied.