Record Display for the EPA National Library Catalog

RECORD NUMBER: 7 OF 23

OLS Field Name OLS Field Data
Main Title Determination of hydrogen sulfide in refinery fuel gases /
Author Knoll, Joseph E. ; Midgett., M. Rodney
Other Authors
Author Title of a Work
Knoll, Joseph E.
Midgett, M. Rodney.
CORP Author Environmental Monitoring and Support Lab., Research Triangle Park, N.C.
Publisher Environmental Monitoring and Support Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1977
Report Number PB 268 240; EPA-600/4-77-007
Stock Number PB-268 240
OCLC Number 55202712
Subjects Hydrogen sulfide. ; Air--Purification. ; Hydrogen sulphide
Additional Subjects Hydrogen sulfide ; Gas analysis ; Air pollution ; Refineries ; Combustion products ; Industrial wastes ; Thiols ; Experimental design ; Sampling ; Laboratory equipment ; Chemical analysis ; Concentration ; Air pollution detection ; EPA method 11 ; Iodometry ; Refinery gases
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=910172GP.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 600-4-77-007 Headquarters Library/Washington,DC 01/29/2013
EJBD  EPA 600-4-77-007 Headquarters Library/Washington,DC 03/26/2014
ELBD RPS EPA 600-4-77-007 repository copy AWBERC Library/Cincinnati,OH 10/17/2014
ESAD  EPA 600-4-77-007 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-268 240 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation viii, 29 p. : ill. ; 28 cm.
Abstract
Several widely employed test methods for the iodimetric measurement of hydrogen sulfide in refinery fuel gases are shown to suffer from serious thiol interferences. An absorbing solution consisting of 0.16 M cadmium sulfate/sulfuric acid at pH 3.0 is shown to be effective for the collection of hydrogen sulfide in the 70-700 mg/cu m range and to be essentially free from interference by up to 1800 mg/cu m of methanethiol. When combined with a single 3 percent hydrogen peroxide impinger, sulfur dioxide interferences of up to 1,300 mg/cu m are also removed. No measureable interference results from the presence of carbon oxysulfide, ethene, dimethyl sulfoxide, or thiophene. Acetaldehyde and acetone are observed to interfere at the 2,400 and 48,000 mg/cu m level, respectively. It is proposed that the absorption solution described here be substituted for the cadmium hydroxide/cadmium sulfate mixture used in the EPA test method (Method 11) for determining the hydrogen sulfide content of refinery fuel gases.
Notes
"EPA-600/4-77-007." "January 1977"--Cover.