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

Abstract

U.S. natural gas composition is expected to be more variable in the future. Liquefied natural gas (LNG) imports to the U.S. are expected to grow significantly over the next 10-15 years. Unconventional gas supplies, like coal-bed methane, are also expected to grow. As a result of these anticipated changes, the composition of fuel sources may vary significantly from existing domestic natural gas supplies. To allow the greatest use of gas supplies, end-use equipment should be able to accommodate the widest possible gas composition. For this reason, the effect of gas composition on combustion behavior is of interest. 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 589K 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 emissions. These results vary from data reported in the literature formore » some engine applications and potential reasons for these differences are discussed.« less

Authors:
; ; ;
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States). In-house Research
Sponsoring Org.:
USDOE Assistant Secretary for Fossil Energy (FE)
OSTI Identifier:
1015368
Report Number(s):
NETL-TPR-1654
TRN: US201111%%568
DOE Contract Number:
XX0000000
Resource Type:
Conference
Resource Relation:
Conference: 5th US Combustion Meeting, Organized by the Western States Section of the Combustion Institute and Hosted by the University of California at San Diego March 25-28, 2006
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; AIR; COMBUSTION; ENGINES; GAS TURBINES; IMPORTS; LIQUEFIED NATURAL GAS; METHANE; NATURAL GAS; POLLUTANTS; PROPANE

Citation Formats

D. Straub, D. Ferguson, K. Casleton, and G. Richards. Effects of Propane/Natural Gas Blended Fuels on Gas Turbine Pollutant Emissions. United States: N. p., 2006. Web.
D. Straub, D. Ferguson, K. Casleton, & G. Richards. Effects of Propane/Natural Gas Blended Fuels on Gas Turbine Pollutant Emissions. United States.
D. Straub, D. Ferguson, K. Casleton, and G. Richards. Wed . "Effects of Propane/Natural Gas Blended Fuels on Gas Turbine Pollutant Emissions". United States. doi:.
@article{osti_1015368,
title = {Effects of Propane/Natural Gas Blended Fuels on Gas Turbine Pollutant Emissions},
author = {D. Straub and D. Ferguson and K. Casleton and G. Richards},
abstractNote = {U.S. natural gas composition is expected to be more variable in the future. Liquefied natural gas (LNG) imports to the U.S. are expected to grow significantly over the next 10-15 years. Unconventional gas supplies, like coal-bed methane, are also expected to grow. As a result of these anticipated changes, the composition of fuel sources may vary significantly from existing domestic natural gas supplies. To allow the greatest use of gas supplies, end-use equipment should be able to accommodate the widest possible gas composition. For this reason, the effect of gas composition on combustion behavior is of interest. 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 589K 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 emissions. These results vary from data reported in the literature for some engine applications and potential reasons for these differences are discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2006},
month = {Wed Mar 01 00:00:00 EST 2006}
}

Conference:
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