Premium
Absorption of carbon dioxide by aqueous ammonia in a packed tower
Author(s) -
Vassilatos G.,
Trass O.,
Johnson A. I.
Publication year - 1963
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.5450410104
Subject(s) - raschig ring , carbon dioxide , absorption (acoustics) , aqueous solution , ammonia , packed bed , vaporization , chemistry , penetration (warfare) , tower , analytical chemistry (journal) , materials science , chromatography , organic chemistry , composite material , operations research , civil engineering , engineering
New data were obtained for absorption of carbon dioxide from an air‐carbon dioxide mixture by aqueous ammonia solutions in a tower packed with 1/2 in. Raschig rings. The rates of absorption of carbon dioxide, expressed as over‐all volumetric coefficients K G a, were correlated with the ammonia concentration and the liquid flow rate. The data were analyzed in the light of the film, penetration and Kishinevsky theories for absorption with simultaneous chemical reaction. Effective interfacial areas, calculated from the data with the aid of the first two theories, were reasonable, and three to four times larger than the corresponding areas for pure physical absorption or vaporization under the same hydrodynamic conditions. Distinction between the two theories was not possible because, for the present system, both give nearly the same results. Results from Kishinevsky's theory were quite unreasonable.