Production and usesThe reaction of ethylene oxide with aqueous ammonia first produces ethanolamine:
In oil refineries, a DEA in water solution is commonly used to remove hydrogen sulfide from various process gases. It has an advantage over a similar amine ethanolamine in that a higher concentration may be used for the same corrosion potential. This allows refiners to scrub hydrogen sulfide at a lower circulating amine rate with less overall energy usage.
DEA is a versatile chemical intermediate, principal derivatives include ethyleneimine and ethylenediamine. Dehydration of DEA with sulfuric acid gives morpholine: