Premium
Theoretical analysis of absorption of chlorine in aqueous slurries of calcium hydroxide: Desorption of hypochlorous acid gas
Author(s) -
Mogal M. M. B.,
Yadav G. D.
Publication year - 1995
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450730513
Subject(s) - desorption , slurry , chlorine , aqueous solution , calcium hydroxide , absorption (acoustics) , chemistry , diffusion , inorganic chemistry , hypochlorous acid , sorption , particle (ecology) , hydroxide , analytical chemistry (journal) , materials science , chromatography , organic chemistry , adsorption , thermodynamics , composite material , oceanography , geology , physics
A theory has been developed for the absorption of chlorine in aqueous slurries of calcium hydroxide accompanied by a two‐step instantaneous reaction and desorption and simulation is carried out to study the effects of various parameters. The rates of absorption of chlorine and desorption of HOC1 from the aqueous slurry are enhanced when fine particles are present in two diffusion film regions on the liquid side. It is concluded that intensification in the rates of absorption of chlorine and rates of desorption can be realized by using high loading of smaller particle size. An optimum k L must be used to enhance rates of Cl 2 absorption and HOG desorption in order to permit the formation of two reaction planes in the diffusion film. Rates can be intensified by an order of magnitude by the proper selection of operating conditions.