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Interaction of activated carbon with dissolved oxygen
Author(s) -
Prober Richard,
Pyeha John J.,
Kidon William E.
Publication year - 1975
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.690210621
Subject(s) - sorption , oxygen , chemistry , carbon fibers , diffusion , activated carbon , inorganic chemistry , environmental chemistry , adsorption , organic chemistry , thermodynamics , materials science , physics , composite number , composite material
The sorption of dissolved oxygen on activated carbon was characterized with manometric and packed column apparatus. All carbons tested, granular and powdered, virgin and reactivated, sorbed 150 to 600 μmole of oxygen/g after run times up to 1 700 hr., but sitll not at equilibrium. The rate data generally conform to a model of sorption limited by intraparticle diffusion. Carboxylic acid groups increase by about 200 μeq/g as a result of dissolved oxygen sorption, which can account for at least 10 to 50% of the oxygen sorbed. Also, about 5% of the sorbed oxygen can be eluted into deoxygenated water.