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Generalized kinetic model for wet oxidation of organic compounds
Author(s) -
Li Lixiong,
Chen Peishi,
Gloyna Earnest F.
Publication year - 1991
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.690371112
Subject(s) - supercritical fluid , selectivity , chemistry , supercritical water oxidation , limiting , kinetic energy , bar (unit) , acetic acid , reaction rate constant , reaction rate , thermodynamics , organic chemistry , kinetics , catalysis , physics , quantum mechanics , mechanical engineering , meteorology , engineering
A generalized kinetic model for wet oxidation (WO) of organic compounds was developed based on a simplified reaction scheme considering acetic acid as the rate‐limiting intermediate. The selectivity of product vs. intermediate formations was quantified by the ratio of the two reaction rate constants. This point selectivity α may be used to characterize the “strength” of the feed stream to be treated. This global model was validated using WO kinetic data reported for temperatures ranging from 150°C to 550°C and pressures varying from 20 bar to 440 bar. Organic conversions predicted by this model, as compared to other models, more accurately reflect the actual performance of WO processes. The model has practical validity for a variety of organic compounds, wastewaters and sludges in both subcritical and supercritical water oxidation processes.