Record Display for the EPA National Library Catalog


Main Title Near-Continuous Measurement of Hydrogen Sulfide and Carbonyl Sulfide by an Automatic Gas Chromatograph.
Author Lindgren, E. R. ; Pershing, D. W. ; Kirchgessner, D. A. ; Drehmel, D. C. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. ;Utah Univ., Salt Lake City. Dept. of Chemical Engineering.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-92/044;
Stock Number PB92-150598
Additional Subjects Hydrogen sulfide ; Gas chromatography ; Sulfides ; Carbon disulfide ; Sulfur dioxide ; Air pollution control ; Calcium oxides ; Reprints ; Carbonyl sulfide ; Sulfur capture reactions
Library Call Number Additional Info Location Last
NTIS  PB92-150598 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
The article describes an automatic gas chromatograph with a flame photometric detector (GC-FPD) that samples and analyzes hydrogen sulfide (H2S) and carbonyl sulfide (COS) at 30-sec intervals. Temperature programming was used to elute trace amounts of carbon disulfide (CS2) present in each injection from a Supelpak-S column in a single peak at the end of 15 min runs. The system was used to study the high-temperature fuel-rich sulfur capture reactions of H2S and COS with injected calcium oxide (CaO) sorbent, necessitating the near continuous measurement of these gaseous sulfur species. The H2S concentration ranged from 300 to 3000 ppm, and the COS from 30 to 300 ppm. The system was also used to monitor sulfur dioxide (SO2) levels under fuel-lean conditions: results compared very closely with SO2 measurements made simultaneously with continuous ultraviolet (UV) SO2 instrumentation.