Destruction of nitrosoamines with UV-light

In this paper the destruction of nitrosamines (NDMA and NDELA) in 30wt% MEA, 50wt% DEA and water wash solutions with UV-irradiation are presented and linked to measured penetration depths of UV- light. The results show that applying UV-irradiation in the solvent circulation loop would be challenging due to the very short penetration depths of UV-light into degraded/coloured amines solutions. However in water wash solutions the UV-light seems to effectively decompose the nitrosamines NDELA and NDMA.