Effects of Propane/Natural Gas Blended Fuels on Gas Turbine Pollutant Emissions

Conference · Thu Mar 01 04:00:00 EST 2007

OSTI ID:913263

Straub, D L; Ferguson, D H; Casleton, K H; Richards, G A

Liquefied natural gas (LNG) imports to the U.S. are expected to grow significantly over the next 10-15 years. Likewise, it is expected that changes to the domestic gas supply may also introduce changes in natural gas composition. As a result of these anticipated changes, the composition of fuel sources may vary significantly from conventional domestic natural gas supplies. This paper will examine the effects of fuel variability on pollutant emissions for premixed gas turbine conditions. The experimental data presented in this paper have been collected from a pressurized single injector combustion test rig at the National Energy Technology Laboratory (NETL). The tests are conducted at 7.5 atm with a 588 K air preheat. A propane blending facility is used to vary the Wobbe Index of the site natural gas. The results indicate that propane addition of about five (vol.) percent does not lead to a significant change in the observed NOx or CO emissions. These results are different from data collected on some engine applications and potential reasons for these differences will be described.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: USDOE - Office of Fossil Energy (FE)
• OSTI ID: 913263
• Report Number(s): DOE/NETL-IR-2007-101
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
54 ENVIRONMENTAL SCIENCES
AIR
AVAILABILITY
COMBUSTION
ENGINES
GAS TURBINES
IMPORTS
LIQUEFIED NATURAL GAS
NATURAL GAS
NOx
POLLUTANTS
PROPANE
carbon monoxide
gas turbines
natural gas
propane blending