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Effect of organic acid additives on SO 2 absorption into CaO/CaCO 3 slurries
Author(s) -
Chang ChungShih,
Rochelle G. T.
Publication year - 1982
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.690280214
Subject(s) - adipic acid , scrubber , slurry , absorption (acoustics) , sulfur dioxide , chemistry , aqueous solution , acetic acid , absorption rate , sulfur , organic acid , inorganic chemistry , chemical engineering , organic chemistry , materials science , chromatography , composite material , engineering
The absorption rate of sulfur dioxide from a gas mixture of SO 2 and N 2 into aqueous acetic acid and adipic acid solutions at p H 4 to 6 has been measured at 25°C in a continuous stirred vessel with an unbroken gas‐liquid interface. The experimental data have been modeled by approximate surface renewal theory with multiple equilibrium reactions. The model has been used to evaluate the relative effectiveness of eleven organic acid additives at typical limestone scrubber conditions. Adipic, sulfopropionic, sulfosuccinic, and hydroxypropionic acids appear to be the most promising alternatives.