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Gas absorption accompanied by a liquid‐phase chemical reaction
Author(s) -
Gilliland E. R.,
Baddour R. F.,
Brian P. L. T.
Publication year - 1958
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.690040219
Subject(s) - chlorine , chemistry , hydrochloric acid , reaction rate constant , ferrous , absorption (acoustics) , chemical reaction , aqueous solution , chloride , reaction rate , inorganic chemistry , ion , reaction mechanism , analytical chemistry (journal) , kinetics , chromatography , organic chemistry , catalysis , materials science , physics , quantum mechanics , composite material
The rate of absorption of chlorine from chlorine‐nitrogen mixtures into solutions of ferrous chloride in 0.203 N aqueous hydrochloric acid was studied in a short wetted‐wall column. Dimensional analysis and the film and penetration theories were used to infer, from the absorption rate data, that the chemical reaction between chlorine and the ferrous ion is second order. The absorption‐rate results for experiments with a dilute gas phase agreed with theoretical predictions for absorption accompanied by a second order reaction with a reaction rate constant of 188 liters/(g. mole) (sec.). The results for experiments with pure chlorine gas deviated from the rest of the results, and they did not agree with the theoretical equations. It was shown that the assumption of a three‐step mechanism for the chemical reaction, including the formation of a complex ion and the decompositon of this complex ion, explains, at least qualitatively, the deviations observed for the pure chlorine gas runs.