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CO 2 Absorption and Regeneration Using Amines with Different Degrees of Steric Hindrance
Author(s) -
Gómez-Díaz Diego,
Navaza José M.,
Rodríguez Pablo,
Vega Raquel
Publication year - 2017
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600486
Subject(s) - steric effects , amine gas treating , chemistry , carbon dioxide , absorption (acoustics) , aqueous solution , solvent , carbon fibers , organic chemistry , materials science , composite number , composite material
The influence of steric hindrance in amines upon different characteristics in carbon dioxide chemical absorption, namely, absorption rate, carbon dioxide loading, and regeneration degree, has been analyzed. Aqueous solutions of monoethanolamine, 1‐amino‐2‐propanol, and 2‐amino‐2‐methyl‐1‐propanol were used to compare their behavior during carbon dioxide absorption. The presence of one or two methyl groups on the carbon next to the amino group produced changes in the analyzed parameters. In addition, the influences of the gas‐flow rate and amine concentration on the chemical solvent behavior were studied to improve the mass transfer under different experimental conditions.