NYLON PRODUCTION - AN UNKNOWN SOURCE OF ATMOSPHERIC NITROUS-OXIDE

Nitrous oxide in the earth's atmosphere contributes to catalytic stratospheric ozone destruction and is also a greenhouse gas component. A precise budgetary accounting of N2O sources has remained elusive, and there is an apparent lack of source identification. One source of N2O is as a by-product in the manufacture of nylon, specifically in the preparation of adipic acid. Characterization of the reaction N2O stoichiometry and its isotopic composition with a simulated industrial adipic acid synthesis indicates that because of high rates of global adipic acid production, this N2O may account for approximately 10 percent of the increase observed for atmospheric N2O.