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COAL SULFUR MEASUREMENTS
Citation:
Hamersma, J. AND M. Kraft. COAL SULFUR MEASUREMENTS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-79/150.
Description:
The report describes a new technique for sulfur forms analysis based on low-temperature oxygen plasma ashing. The technique involves analyzing the low-temperature plasma ash by modified ASTM techniques after selectively removing the organic material. The procedure has been tested on 25 coals and compared with ASTM analyses with excellent results. The data indicate that it is significantly more accurate and precise than ASTM D2492. A separate set of experiments showed that it is also feasible to determine organic sulfur directly by trapping SOx in the plasma ash effluent. Development of the latter procedure was beyond the scope of the task.