MEA 40% with improved oxidative stability for CO2 capture in post-combustion

In this paper we report a laboratory scale evaluation test of MEA degradation associated with analysis of degradation products and an evaluation of different oxidation inhibitors. Control of oxidation with inhibitors selected among conventional antioxidants was found to be unsuccessful. New classes of chemicals were investigated and MEA oxidative degradation was considerably reduced using specific inhibitors. The inhibition was found to be effective with 40% MEA and was successfully extended to others amines such as DEA, MDEA and AMP.