Record Display for the EPA National Library Catalog


Main Title Molecular sieve NOx control process in nitric acid plants /
Author Rosenberg, Harvey S.
CORP Author Battelle Columbus Labs., Ohio.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
Publisher U.S. Environmental Protection Agency, Office of Research and Development ; For sale by the National Technical Information Service,
Year Published 1976
Report Number EPA-600/2-76-015; EPA-68-02-1323; EPA-ROAP-21ADH-008
Stock Number PB-250 555
OCLC Number 02481637
ISBN pbk.
Subjects Air--Pollution--Experiments ; Gases--Absorption and adsorption ; Nitric acid ; Molecular sieves ; Air--Pollution--Experiments ; Gases--Absorption and adsorption ; Molecular sieves ; Nitric acid
Additional Subjects Nitrogen oxides ; Air pollution control ; Absorbers(Equipment) ; Degradation ; Performance evaluation ; Chemical industry ; Technology assessment ; Cost estimates ; Capitalized costs ; Nitrogen dioxide ; Operating costs ; Zeolites ; Molecular sieves ; Nitric acid plants ; PuraSiv N process
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-76-015 Headquarters Library/Washington,DC 02/11/2014
EKBD  EPA-600/2-76-015 Research Triangle Park Library/RTP, NC 06/13/2003
ESAD  EPA 600-2-76-015 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-250 555 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 57, A-10 p. : ill., diag., graphs ; 28 cm.
The report gives results of an engineering analysis of the applicability of molecular sieve technology to the control of NOx emissions from nitric acid plants. Field test data from a plant using this technology show that, after 6 months of operation, the plant still controls NOx emissions to well within the New Source Performance Standard (NSPS) (1.5 kg of NOx/metric ton of acid; equivalent to about 200 ppm NOx in the tail gas). Field test data from a second plant, 10 months after start-up, show that NOx emissions are below the NSPS, even though the sieve had been accidentally damaged. The process appears able to achieve an average effluent NOx concentration of 50 ppm, based on tests at the former plant; however, this concentration was not achieved during the tests at the latter plant because of the damaged sieve. Although a 2-year sieve life has not been demonstrated, there is no reason to believe it cannot be achieved, and it appears that molecular sieve technology is technically feasible. The economic feasibility of molecular sieve technology for this application was assessed by comparing this technology with the catalytic reduction and extended absorption processes, both of which usually limit effluent NOx concentration to only about 200 ppm. The capitalized cost for the molecular sieve process is higher than for catalytic reduction and lower than for extended absorption.
Prepared by Battle-Columbus Laboratories, Columbus, Ohio, under contract no. 68-02-1323, Task 17, ROAP no. 21ADH-008, program element no. 1AB014. Appendix : p. A1-A10. Includes bibliographical references (p. 56-57).