Update and improvement of dispersion calculations for emissions to air from TCM's amine plant. Part II-Likely case nitrosamines, nitramines and formaldehyde.

Abstract

Inert dispersion of a unitary emission has been combined with time dependent air chemistry to provide maximum impact of nitrosamines and nitramines in air and water for emissions from the amine absorber at TCM. The calculations show that likely case impact of nitrosamines and nitramines in air is less than 2 % of the recommended guideline value. The maximum concentrations in fresh water range from0.6 % to 3.2 % of the guideline depending on the use of absorbent and flue gas. The likely case impact show that air concentrations are a factor of 3 to 4 lower than the worst case, while water concentrations are be a factor from 16 to 22 lower than the worst case depending on the type of absorbent.