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ON-LINE MEASUREMENT OF NITROUS OXIDE FROM COMBUSTION SOURCES BY AUTOMATED GAS CHROMATOGRAPHY
Citation:
Ryan, J. AND W. Linak. ON-LINE MEASUREMENT OF NITROUS OXIDE FROM COMBUSTION SOURCES BY AUTOMATED GAS CHROMATOGRAPHY. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-92/215 (NTIS PB93106847), 1992.
Description:
The paper discusses on-line measurement of nitrous oxide (N2O) from combustion sources by automated gas chromatography. ossil fuel combustion is suspected of contributing to measured increases in the ambient concentrations of N2O. haracterization of N2O emissions from fossil fuel combustion and associated pollution control systems has been hindered by the generation of N2O from nitrogen oxides, sulfur dioxide, and moisture present in the sample vessel while samples await analysis. o truly assess N2O emissions from fossil fuel combustion, a real-time or near real-time measurement technique is required. o accomplish this, a gas chromatograph equipped with an electron capture detector was configured and automated. his system is capable of detection levels below ambient concentrations and a practical quantifying range of 0.1 to 200 ppm. recolumn backflushing system negates the effects of interferents present in fossil fuel combustion emissions. he automated system, capable of one on-line measurement every 8 minutes, has been used to evaluate N2O emissions from a variety of combustion sources, fuels, and post-combustion pollution control techniques.
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ON-LINE MEASUREMENT OF NITROUS OXIDE FROM COMBUSTION SOURCES BY AUTOMATED GAS CHROMATOGRAPHY