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Laser irradiation of oxidized coals (letter to the editor).
Sharkey-AG Jr.; Logar-AF; Karn-FS
Fuel 1969 Jan; 48(1):1-2
The purpose of this communication is to describe use of a low-power CO2 gas laser to investigate the surface of mildly oxidized coals. While it is well established that water vapor, carbon dioxide vapor, and carbon monoxide are major products from the pyrolysis of oxidized coal, little is known about other gaseous products and, in particular, about gases derived from surface components. Irradiation with laser light provides a means of limiting vaporization and pyrolysis to surface materials.
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