Oxidative Degradation of Aqueous 2-Amino-2-methyl-1-propanol Solvent for Postcombustion CO2 Capture

Ind. Eng. Chem. Res., 2012, 51 (18), pp 6529–6536
Oxidative Degradation of Aqueous 2-Amino-2-methyl-1-propanol Solvent for Postcombustion CO2 Capture
Tielin Wang †‡ and Klaus-J. Jens *†‡
Klaus.J.Jens@hit.no
† Department of GassTek, Telemark R & D Institute, Kjølnes ring 30, 3918 Porsgrunn, Norway
‡ Faculty of Technology, Telemark University College, Kjølnes ring 56, 3901 Porsgrunn, Norway
Abstract
2-Amino-2-methyl-1-propanol (AMP) and the blends of AMP with other amines are commercially attractive solvents for postcombustion CO2 capture by absorption/stripping.
Researchers conducted oxidative degradation experiments involving AMP aqueous solutions in a 200 mL glass batch reactor with initial AMP concentrations of 5 mol·kg–1, oxygen partial pressures of 250–350 kPa, and at temperatures of 100–140 °C in order to understand the degradation mechanistic pathways.  Authors propose possible chemical pathways of AMP oxidative degradation based on the identified and quantified products and the context of the current amine degradation schemes.
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