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Absorption of carbon dioxide in ethylenediamine solutions i. absorption kinetics and equilibrium
Author(s) -
Weiland R. H.,
Trass Olev
Publication year - 1971
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.5450490610
Subject(s) - ethylenediamine , carbon dioxide , chemistry , absorption (acoustics) , solubility , reaction rate constant , electrochemical reduction of carbon dioxide , inorganic chemistry , carbonation , kinetics , carbon monoxide , materials science , organic chemistry , catalysis , physics , quantum mechanics , composite material
The chemical absorption of carbon dioxide by a laminar jet of ethylenediamine has been studied at 25.5°C under pseudo‐first‐order kinetic conditions. The reaction was found to be second‐order with a rate constant of 1.0 x 10 5 1/g. mole sec. Equilibrium calculations at 18°C indicate that the partial pressure of carbon dioxide is very low, even over highly carbonated ethylenediamine solutions. The effects of amine concentration and carbonation ratio on the physical solubility and diffusivity of carbon dioxide in solution were inferred from corresponding results for nitrous oxide