3 June 1994 Measurements of CF4 and C2F6 in the emissions from aluminum smelters by tunable diode laser absorption spectrometry
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Proceedings Volume 2112, Tunable Diode Laser Spectroscopy, Lidar, and DIAL Techniques for Environmental and Industrial Measurements; (1994) https://doi.org/10.1117/12.177288
Event: SPIE's International Symposium on Optical Sensing for Environmental Monitoring, 1993, Atlanta, GA, United States
Abstract
Because of their very long atmospheric lifetimes the two perfluorocarbons, CF4 and C2F6 have `global warming potentials' tens of thousands times greater than CO2. Aluminum smelting is believed to be the major source of these gases in the atmosphere although there is a great deal of uncertainty in the global emissions from this source. The emissions occur largely during `anode event' episodes. A tunable diode laser absorption spectrometer was used to measure the emissions of these gases from 8 smelters in the Province of Quebec which represent different technologies and contribute 11% to the total global production of aluminum. The results show that there is considerable variability in emissions between technologies, and in the intensity, the shape and the duration of the anode events with an apparent relationship between the duration and the fluxes during the anode events.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Harold I. Schiff, J. Bechara, John T. Pisano, Gervase I. Mackay, "Measurements of CF4 and C2F6 in the emissions from aluminum smelters by tunable diode laser absorption spectrometry", Proc. SPIE 2112, Tunable Diode Laser Spectroscopy, Lidar, and DIAL Techniques for Environmental and Industrial Measurements, (3 June 1994); doi: 10.1117/12.177288; https://doi.org/10.1117/12.177288
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