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Mass transfer and reaction behaviour of a circulating fluidized bed reactor
Author(s) -
Vollert Joachim,
Werther Joachim
Publication year - 1994
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.270170309
Subject(s) - mass transfer , fluidized bed combustion , fluidized bed , mass flux , fluidization , flux (metallurgy) , mass transfer coefficient , chemistry , thermodynamics , chemical reactor , chemical engineering , materials science , chromatography , organic chemistry , physics , engineering
This contribution presents a chemical reactor model of a circulating fluidized bed (CFB) which takes into account adsorption effects and provides a description of the vertical profiles of gas concentration in the riser. The oxidation of NO is used as an example of a heterogeneous catalytic reaction. Mass transfer between the gas phase and solid particles in the CFB was investigated at various temperatures and solids mass flow rates. The measurements show that the mass transfer coefficient decreases with increasing solids mass flux and that the CFB resembles a bubbling fluidized bed as regards gas‐solid contacting.