Structure and activity relationships for amine based CO2 absorbents—II

P. Singh, John Niederer, Geert Versteeg

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Abstract

A study to determine the structure and activity relationships of various amine-based CO2 absorbents was performed, in which the absorption of pure CO2 at atmospheric pressure was measured to assess the total absorption rates and capacities. Steric hindrance effect was noticed when side chain with alkyl group was present at the α-carbon to the amine group in the absorbent structure. An increase in the number of amine groups in absorbent structure, results in a higher capacity of upto 3.03 moles CO2/moles amine. Aromatic amines substituted with alkyl groups at the 2nd and 5th position show an increase in both absorption rate and capacity.
Original languageUndefined
Pages (from-to)135-144
JournalChemical engineering research and design (Transactions of the Institution of Chemical Engineers, part A)
Volume87
Issue number2
DOIs
Publication statusPublished - 2009

Keywords

  • Absorption
  • Acid gas
  • CO2
  • IR-80101
  • Amine

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