Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Source assessment : urea manufacture /
Author Search, W. J. ; Reznik., R. B.
Other Authors
Author Title of a Work
Reznik, R. B.,
CORP Author Monsanto Research Corp., Dayton, Ohio.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
Publisher Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1977
Report Number EPA-600/2-77-107l; MRC-DA-728; EPA-68-02-1874; EPA-ROAP-21AXM-071
Stock Number PB-274 367
OCLC Number 03793265
ISBN pbk.
Subjects Urea. ; Urea.
Additional Subjects Assessments ; Urea ; Chemical industry ; Air pollution control ; Manufacturing ; Industrial wastes ; Sources ; Combustion products ; Particles ; Ammonia ; Concentration(Composition) ; Design criteria ; Process charting ; Technology ; Forecasting ; Trends ; Performance evaluation ; Emission factors ; Fugitive emissions
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-77-107L Headquarters Library/Washington,DC 03/26/2014
EKAM  EPA-600/2-77-107 Region 4 Library/Atlanta,GA 06/19/1998
EKBD  EPA-600/2-77-107l Research Triangle Park Library/RTP, NC 07/04/2003
ESAD  EPA 600-2-77-107L Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-274 367 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation viii, 86 p. : ill. ; 28 cm.
The report gives results of an evaluation of the potential environmental effects of air emissions from the production of urea. Urea production in the U.S. was 3.45 million metric tons in 1975. Major products were urea solution (38%), granulated solid material (53%), and prilled solid material (9%). Over 75% of the urea produced is consumed in fertilizers. Both ammonia and particulates are released to the atmosphere during its manufacture. Major emission points are the evaporator, prilling tower, and granulator. The evaporator has the largest emission factor for ammonia, 1.73 g/kg; the prill tower has the largest for particulates, 3.2 g/kg. Emissions from the evaporator and granulator are normally controlled by scrubbers; prill tower emissions are not controlled. Source severities were determined to evaluate potential environmental effects: they were between 10 and 1 for ammonia emissions from the prill tower and for particulate emissions from the evaporator, granulator, and prill tower. (Source severity is the ratio of the average maximum ground level concentration of an emission species to the ambient air quality standard (particulates) or (for ammonia) to a reduced threshold limit value.)
"November 1977." "EPA Task Officer: Ronald A. Venezia." Contract 68-02-1874, ROAP 21AXM-071, Program element 1AB-15, sponsored by Industrial Environmental Research Laboratory. Office of Energy, Minerals, and Industry, Triangle park, N.C. "EPA-600/2-77-107l."