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Parametric studies of carbon dioxide absorption into highly concentrated monoethanolamine solutions
Author(s) -
Demontigny David,
Tontiwachwuthikul Paitoon,
Chakma Amit
Publication year - 2001
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.5450790121
Subject(s) - carbon dioxide , absorption (acoustics) , mass transfer coefficient , mass transfer , chemistry , volumetric flow rate , analytical chemistry (journal) , partial pressure , inert gas , inert , chromatography , materials science , organic chemistry , thermodynamics , composite material , oxygen , physics
Carbon dioxide (CO 2 ) absorption into highly concentrated solutions of monoethanolamine (MEA) was studied. The effect of operating parameters on the overall mass transfer coefficient ( K G a v ) was determined in a pilot‐plant scale absorption unit. The ( K G a v ) increased at low solution concentrations, decreased at intermediate concentrations, and increased as the concentration became high (54 wt%). The ( K G a v ) increased with an increasing liquid flow rate, decreased with an increase in either the CO 2 loading or the CO 2 partial pressure, and was not affected by the inert gas flow rate. Finally, structured 4A Gempak packing produced ( K G a v ) values twice as high as randomly packed IMTP#15 or 16‐mm Pall Ring systems.