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Mass transfer with chemical reaction in a threehyphen;phase foam‐slurry reactor
Author(s) -
Stangle Gregory C.,
Mahalingam R.
Publication year - 1990
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690360114
Subject(s) - mass transfer , contactor , slurry , continuous stirred tank reactor , dissolution , chemistry , bubble , mass transfer coefficient , absorption (acoustics) , bubble column reactor , chemical engineering , chemical reactor , chemical reaction , materials science , analytical chemistry (journal) , chromatography , thermodynamics , composite material , gas bubble , organic chemistry , power (physics) , physics , engineering , parallel computing , computer science
Abstract Studies on mass transfer coupled with chemical reaction were conducted in a gas‐liquid‐solid foam bed contactor under a variety of operating conditions in order to establish the controlling parameters for such a contacting system. Analytical equations were derived in order to predict the influence of solids dissolution on the specific rate of absorption in the stable foam stage of a three‐phase foam‐slurry reactor. Experimental investigations on the absorption of carbon dioxide in the presence of an aqueous foam‐slurry containing calcium hydroxide particles were carried out in order to verify the theoretical model. Results indicate that the gas‐liquid interfacial area and gas flow rate strongly affected the rate of mass transfer, while solids holdup affected mass transfer rates only moderately over the range of solids holdup studied. A comparison with conventional chemical reactor configurations (e.g., bubble column, CSTR) was made to demonstrate the gas‐liquid‐solid system, for which this novel reactor might be employed. Foam stability enhancement, due to the presence of solid particles, was not observed.