Near-continuous measurement of hydrogen sulfide and carbonyl sulfide by an automatic gas chromatograph

Technical Report · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5447968

Lindgren, E R; Pershing, D W; Kirchgessner, D A; Drehmel, D C

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.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (United States). Air and Energy Engineering Research Lab.
• OSTI ID: 5447968
• Report Number(s): PB-92-150598/XAB; EPA-600/J-92/044
• Resource Relation: Other Information: Pub. in Jnl. of Chromatography, v585 p353-358 1991. Prepared in cooperation with Utah Univ., Salt Lake City. Dept. of Chemical Engineering
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
01 COAL, LIGNITE, AND PEAT
CARBON OXYSULFIDE
GAS CHROMATOGRAPHY
HYDROGEN SULFIDES
SORBENT INJECTION PROCESSES
MONITORING
SULFUR DIOXIDE
AIR POLLUTION CONTROL
CALCIUM OXIDES
COMPARATIVE EVALUATIONS
FUELS
MEASURING INSTRUMENTS
SULFIDATION
TEMPERATURE CONTROL
ULTRAVIOLET RADIATION
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMATOGRAPHY
CONTROL
ELECTROMAGNETIC RADIATION
EVALUATION
HYDROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
RADIATIONS
SEPARATION PROCESSES
SULFIDES
SULFUR COMPOUNDS
SULFUR OXIDES
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
010800 - Coal
Lignite
& Peat- Waste Management