||Effect of diethylhydroxylamine on smog chamber irradiations /
Cupitt, Larry T. ;
Corse, Eric W.
||Northrop Services, Inc., Research Triangle Park, NC.;Environmental Sciences Research Lab., Research Triangle Park, NC.
|| Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Air pollution control ;
Urban areas ;
Test chambers ;
Photochemical reactions ;
Nitrogen oxides ;
Nitrogen oxide(NO) ;
Laboratory equipment ;
Chemical reaction mechanisms ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||xii, 88 pages : illustrations ; 28 cm.
The addition of diethylhydroxylamine (DEHA) to the urban atmosphere had been suggested as a means of preventing photochemical smog. Smog chamber studies were carried out to investigate the photochemical smog formation characteristics of irradiated hydrocarbon-nitrogen oxides - DEHA mixtures. Propylene and n-butane were the hydrocarbons used. The effects of DEHA upon ozone formation, aerosol formation, peroxyacetyl nitrate formation, nitric oxide-to-NOx conversion, and hydrocarbon consumed are described. The rate constant for the reaction DEHA + OH yields to products was estimated as 4.1 + or - 3.4 X 10 to the 5th power/ppm/min. Possible reaction schemes for DEHA in the photochemical smog mechanism are discussed. The addition of DEHA to a HC/NOx system inhibits the conversion of NO to NO2 during the initial minutes of irradiation, but after continued irradiation accelerates this conversion.
Project Officer: Joseph J. Bufalini. Northrop Services, Inc., Environmental Sciences Center "April 1979." "EPA-600/3-79-040." Microfiche.